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TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES

Subclass of:

008 - Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
0089401R0TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES87
20090094758Epichlorohydrin Amine Polymers Used for Treating the Surface of Leather - An epichlorohydrinamine polymer has a ratio of amine units to epichlorohydrin units of from 0.8:1.2 to 1.0:1.0, dimethylaminopropylamine and benzylamine preferably being used as amine and/or ammonium units. The novel epichlorohydrinamine polymer is used, for example, for the surface treatment of semifinished leather products and textile materials.04-16-2009
20090144912TREATMENT OF PROTEINACEOUS, FIBROUS ENTITIES WITH BETA-KETOCARBONYL-FUNCTIONAL SILOXANE POLYMERS - Leather substrates are rendered water repellant by treatment with β-ketocarbonyl-functional siloxane polymers containing at least one radical of the formula06-11-2009
20100037399Aldehyde reduction in aqueous coating and leather finishing compositions - The present invention provides methods for reducing the level of free aldehydes in coatings for flexible substrates, such as tanned leather, and substantially aldehyde free substrates. The methods comprise applying to the substrate a composition of one or more aqueous emulsion or suspension composition of an acrylic polymer or silicon containing polymer that is made from, or contains one or more lower alkyl alcohol or degrades on storage or in use to form such an alcohol, and one or more water-insoluble to slightly water soluble aldehyde scavenger compound, followed by drying or curing the applied composition to form a coating. In addition, the methods provide enhanced aldehyde scrubbing, especially for acetaldehyde, by applying to a substrate an aqueous acrylic polymer or silicon containing polymer emulsion or suspension comprising a aldehyde scavenger compound that is substantially deprotonated, i.e. by raising the pH composition to 5.5 or higher. The present invention also provides treated and coated substrates made by the inventive methods.02-18-2010
20100154128METHOD FOR PRODUCING LEATHER - A process for the production of leather, wherein tanned animal hides are treated in step (A) with an aqueous liquor which comprises 06-24-2010
20100263134LEATHER PROCESSING - The present invention relates to improvements in the processing of animal skins to create leather and results in improved leather quality, in terms of softness, and markedly increased area yield. According to the present invention there is provided a process for improving area yield and/or softness of leather which comprises treating chromium (III) or aldehyde tanned skins with an enzyme composition which is a mixture of at least one protease and at least one elastase. The invention applies particularly, although not exclusively, to clothing leather and upholstery leather production.10-21-2010
20130036557FUNCTIONAL LEATHER AND THE METHOD OF PREPARING THEREOF - A manufacturing method of a functional leather comprises a step for preparing a first mixed solution by melting only chitosan, or melting chitosan and chitosan derivative into an acid solution; a step for preparing a second mixed solution containing a material radiating minus ions and the chitosan solution; and a step for depositing a leather into the second mixed solution, and a functional leather manufactured by the above method. This invention provides a functional leather product having strong antibacterial effect and deodorization effect and thereby, it is very helpful for a human being's health.02-14-2013
20190144959ANIMAL SKIN SUBSTRATE TREATMENT METHOD AND APPARATUS05-16-2019
008940110 Internal tissues 1
20120117734TREATMENT OF BIOPROSTHETIC TISSUES TO MITIGATE POST IMPLANTANATION CALCIFICATION - Bioprosthetic tissues are treated by immersing or otherwise contacting fixed, unfixed or partially fixed tissue with a glutaraldehyde solution that has previously been heat-treated or pH adjusted prior to its contact with the tissue. The prior heat treating or pH adjustment of the glutaraldehyde solution causes its free aldehyde concentration to decrease by about 25% or more, preferably by as much as 50%, and allows a “stabilized” glutaraldehyde solution to be obtained at the desired concentration and pH for an optimal fixation of the tissue at high or low temperature. This treatment results in a decrease in the tissue's propensity to calcify after being implanted within the body of a human or animal patient.05-17-2012
008940160 Depilating 44
20090049619Composition, Process For Preparation and Method of Use - Depilatory compositions comprising a depilatory agent , fatty alcohol and VP/hexadecene copolymer provide improved resistance to rinsing of the compositions from the skin. The compositions provide for a method of depilation in wet conditions using a tool to apply and remove the compositions.02-26-2009
20100083443Depilatory Composition - A depilatory cream composition comprising, a depilatory active, an emollient selected from at least one of mineral oil, silicone oil and emollient esters, and a silicone wax, a talc and/or polyamide resin.04-08-2010
20100095464METHODS OF PRESERVING HIDES - A method for preserving hides, skins and pelts prior to tanning, without salt-curing. The hides are fatliquored, pickled and dried, all prior to tanning. The method may include the preliminary steps of washing, fleshing, liming and unhairing followed by the steps of fatliquoring, deliming, bating, pickling and drying. The method avoids the environmental damage caused by salt-curing. The treated hides are dry, flexible and readily rehydrated for further processing.04-22-2010
20100263135PROCESS FOR PERMANENT BODY EPILATION - A permanent body epilation process comprising a step for skin preparation, for cleansing and degreasing the cutaneous layer of the skin, and a step for the application, by means of a poration machine, of a liquid solution that comprises the active ingredient lauryl isoquinolinium bromide.10-21-2010
20120297550PROCESS FOR STERILIZING ACELLULAR SOFT TISSUE WITH IRRADIATION - The present invention relates to a process for preparing skin removed from a human donor, removal of cellular components and sterilizing the decellularized skin. The process comprises the following steps:11-29-2012
008160000 Adhesive type 3
20100146715EPILATORY COMPOSITIONS - An epilatory composition, substantially provided as flat strips, comprises a gel-like matrix material, for example a rosin-based or sugar-based material and, mixed with the matrix material, a particulate material, for example colloidal particles of fumed silica, and a polyethylene in the form of a homopolymer. The particles reduce the tendency of the epilatory composition to flow, under warm ambient conditions with improved efficacy over known epilatory compositions.06-17-2010
20110203055EPILATORY COMPOSITIONS - An epilatory composition of the adhesive type comprises a gel-like matrix material, for example of a rosin-based or sugar-based material, together with 0.1-5 wt % of a branched polyalkene, for example polyisobutene. The resulting compositions offer skin care benefits whilst maintaining excellent viscoelastic and adhesive properties.08-25-2011
20130298338Skin conditioning method - A skin conditioning program comprises a skin softening and repair step where a natural composition is applied to the skin; a hair extraction and follicle decongestion step where a natural composition is applied to the skin; a follicle detoxification step where a mineral composition is applied to the skin; and skin exfoliation step where a mineral composition is applied to the skin. These program elements are complementary. The skin softening and repair improves the exfoliation; improved exfoliation improves the penetration and efficiency of the follicle detoxification; and the improved detoxification improves paste penetration and sugaring efficiency. The skin conditioning program is designed to establish and to maintain improved skin and hair follicle condition in order to promote more effective hair removal.11-14-2013
008161000 Living animal 36
20090165220Depilatory products - There is provided a shelf stable two part aqueous based depilatory system comprising an acidic oxidative phase and a basic reductive phase containing, inter alia at least one depilatory compound, wherein the mixing of the two phases provides a substantially neutral warm depilatory mixture.07-02-2009
20110185517EPILATORY COMPOSITIONS - An epilatory composition, substantially provided as flat strips, comprises a gel-like matrix material, for example a rosin-based or sugar-based material and, mixed with the matrix material, a particulate material, for example colloidal particles of fumed silica. The particles reduce the tendency of the epilatory composition to flow, under warm ambient conditions.08-04-2011
20110197370Durable Depilatory Article - A depilatory article comprising a substrate; and a depilatory composition disposed on the substrate, the coating of depilatory composition forming a coated region of the substrate and having a substrate facing side and a non-substrate facing side, wherein said depilatory composition has a yield point from 50 Pa to 2000 Pa, preferably from 65 Pa to 1200 Pa, more preferably from 80 Pa to 750 Pa and even more preferably from 100 Pa to 500 Pa measured via a stress controlled amplitude sweep; at a frequency of 1 Hz and a temperature of 25° C. and wherein the depilatory article comprises a protective release layer, preferably a water impermeable protective release layer placed on the non-substrate facing side of the depilatory composition.08-18-2011
20110197371Efficient Depilatory Article - A depilatory article comprising a substrate and an aqueous depilatory composition, the aqueous depilatory composition being in physical contact with the substrate, forming a coated region of the substrate and comprising a thioglycolate salt and silica.08-18-2011
20110197372Adherent Depilatory Article - A depilatory article comprising a substrate at least partially coated with a depilatory composition, the coating of depilatory composition forming a coated region of the depilatory article, wherein the depilatory composition comprises carrageenan, preferably iota carrageenan,08-18-2011
20110197373Depilatory Article - A depilatory article comprising a water impermeable substrate and an aqueous depilatory composition, the aqueous depilatory composition being in physical contact with the water impermeable substrate and comprising a keratin reducing agent and water in an amount of at least 40% by weight of the aqueous depilatory composition; wherein the aqueous depilatory composition forms a covered region of the water impermeable substrate and wherein the keratin reducing agent is present in an amount per unit area of the covered region of from 1×1008-18-2011
20110197374Efficacious Depilatory Article - A depilatory article comprising a substrate and an aqueous depilatory composition, the aqueous depilatory composition being in physical contact with the substrate and comprising a keratin reducing agent and one or more monovalent cations; wherein the aqueous depilatory composition forms a coated region of the substrate; and wherein the amount of monovalent cations per unit area of said coated region is from 6×1008-18-2011
20110197375Effective Depilatory Article - A depilatory article comprising a substrate and an aqueous depilatory composition, the aqueous depilatory composition being in physical contact with the substrate, forming a coated area of the substrate and comprising a thioglycolate salt and a silicate.08-18-2011
20110197376Stable Personal Care Article - A personal care article comprising a substrate; and a personal care composition disposed on the substrate, the coating of personal care composition forming a coated region of the substrate, wherein said personal care composition has a yield point from 10 Pa to 2000 Pa, preferably from 30 Pa to 1200 Pa, more preferably from 45 Pa to 500 Pa and even more preferably from 60 Pa to 300 Pa measured via a stress controlled amplitude sweep; at a frequency of 1 Hz and a temperature of 25° C., and wherein the personal care composition is disposed on the substrate in an amount per unit area of the coated region of from 0.300 g/cm08-18-2011
20110232005Depilatory Method and Kit - A method of removing hair from skin, preferably facial skin, is provided, comprising the steps of: 09-29-2011
20110232006Kit and Method for Removing Hair - A method of removing hair from skin, preferably facial skin, is provided, comprising the steps of: 09-29-2011
20110232007Hair Removal Method and Hair Removal Kit - A method of removing hair from skin, preferably facial skin, is provided, comprising the steps of: 09-29-2011
20110302723Depilatory Composition - A depilatory cream composition comprising a depilatory active, and one or more volatile, essential oils selected from the group consisting of orange oil, cedarwood oil, patchouli oil, pine oil, cabreuva oil, guaiacwood oil, lavandin oil, bergamot oil, petitgrain paraguay oil, lavender oil, mint oil, Virginia cedarwood oil, Citrus Aurantium dulcis oil and Citrus grandis oil.12-15-2011
20120023682Natural alternative to wax to remove unwanted hair - The natural alternative to wax to remove unwanted hair does not cause irritation to any type of skin. It is made of sugar, water and lemon. It does not need a special machine to heat it, and does not take time to reach the right temperature to be ready for use. It is environmental friendly because it does not need disposal wooden sticks to apply it, and does not need disposal sheets to remove unwanted hair. It also does not need lotions after removing the unwanted hair because it does not dry the skin and keeps it smooth. It is also affordable that is enough to apply on full body many times. The hair does not grow after the application of the natural alternative at least for three to six weeks.02-02-2012
20120317731AQUEOUS STABLE COMPOSITION FOR DELIVERING SUBSTRATES FOR A DEPILATORY PRODUCT USING PERACETIC ACID - Disclosed herein are compositions and methods for delivering substrates for a depilatory product using an enzymatically-generated peracid. More specifically, a pH stabilized two component system is provided comprising (a) a first aqueous composition comprising hydrogen peroxide and at least one carboxylic acid ester substrate; wherein the pH of the first aqueous composition is 4.0 or less and (b) a second aqueous component comprising an enzyme catalyst having perhydrolytic activity and a buffer, wherein the pH of the second aqueous composition is at least 5.0; wherein the first and second aqueous compositions remain separated until use. The perhydrolytic enzyme catalyst may be in the form of a fusion protein comprising a perhydrolytic enzyme coupled through an optional peptide linker to a peptidic component having affinity for hair.12-20-2012
20120317732NON-AQUEOUS STABLE COMPOSITION FOR DELIVERING SUBSTRATES FOR A DEPILATORY PRODUCT USING PERACIDS - Disclosed herein are compositions and methods for delivering substrates for a depilatory product using an enzymatically generated peracid. More specifically, a two component system is provided comprising (a) a first non-aqueous composition comprising a solid source of peroxygen, an ester substrate, and an optional organic cosolvent and (b) an aqueous component having a pH of at least 4 comprising an enzyme catalyst having perhydrolytic activity and a buffer. The perhydrolytic enzyme catalyst may be in the form of a fusion protein comprising a perhydrolytic enzyme coupled through an optional peptide linker to a peptidic component having affinity for hair.12-20-2012
20120317733ENZYMATIC PERACID GENERATION FOR USE IN HAIR CARE PRODUCTS - Disclosed herein are compositions and methods to treat hair with a peracid-based benefit agent. The peracid benefit agent can be used for hair bleaching, hair weakening, hair removal, hair waiving, hair straightening or any combination thereof. The peracid may be enzymatically generated from a carboxylic acid ester substrate using an enzyme having perhydrolytic activity (perhydrolase) in the presence of a source of peroxygen. A fusion protein comprising the perhydrolase coupled to a hair-binding domain, either directly or through an optional linker, may be used to target the perhydrolytic activity to the hair surface.12-20-2012
20130042417Depilatory Method and Kit - A depilatory kit having a depilatory composition comprising an effective amount of a keratin reducing agent and a sheet of occlusive material which is separate from the depilatory composition.02-21-2013
20130042418Effective Depilatory Article - An aqueous depilatory composition comprising a thioglycolate salt and a fluoride ion source.02-21-2013
20130042419Effective Depilatory Article - A depilatory article comprising a substrate and an aqueous depilatory composition, the aqueous depilatory composition being in physical contact with the substrate, forming a coated area of the substrate and comprising a thioglycolate salt and a phosphate ion source, sulphate or sulphite ion source or mixtures thereof.02-21-2013
20130042420Fragrant Depilatory Article - A depilatory article comprising a substrate and a depilatory composition disposed on said substrate wherein the depilatory composition comprises solid entrapping particles, said particles comprising a polymer and a volatile material or mixture of volatile materials.02-21-2013
20130042421Method and Kit For Depilation - A method of removing hair from skin, by applying a depilatory composition to an area of skin on which unwanted hair is growing, the depilatory composition comprising a keratin reducing agent; and subsequently applying a layer of liquid or semi-solid occlusive material to cover the depilatory composition, the liquid or semi-solid occlusive material comprising hydrophobic material.02-21-2013
20130047347Depilatory Method and Kit - A method of removing hair from skin is provided by the steps of providing a protective composition, wherein the protective composition comprises at least 1% of a hydrophobic polymer by weight of the protective composition and wherein the protective composition reduces the penetration of thioglycolic acid by at least 45%, as measured using the Franz Cell Method; and, providing a depilatory composition comprising an effective amount of a keratin reducing agent.02-28-2013
20130047348Method and Kit For Depilation - A depilatory kit having a protective composition, the protective composition comprising from 1% to 50% copolymer by weight of the protective composition, the copolymer comprising at least 50% by weight of the copolymer of monomers which have hydrophobic side-groups, each hydrophobic side-group comprising from 8 to 40 carbon atoms, and a depilatory composition comprising an effective amount of a keratin reducing agent.02-28-2013
20130133141COMPOSITION AND METHOD - A depilatory composition comprising a source of cyanate ion, an organic acid or a salt thereof and a peroxide compound; and methods of removing hair from the skin using such compositions.05-30-2013
20130205514DEPILATORY COMPOSITIONS - The present invention relates to a depilatory composition in the form of a gel which comprises a depilatory compound having a thiol group and at least 1.0 wt % of poly(methylvinyl ether/maleic anhydride) co-polymer crosslinked with 1,9 decadiene.08-15-2013
20130239339COMPOSITION AND METHOD - A method of delivering a primary active agent and a secondary active agent to a locus. The method uses a polymersome containing composition. The composition comprises a plurality of polymersome vesicles containing the secondary active agent and a liquid matrix comprising the primary active agent. The polymersome vesicles are capable of being disrupted by the application of mechanical shear.09-19-2013
20130263388Epilatory Compositions - An epilatory composition, substantially provided as flat strips, comprises a gel-like matrix material, for example a rosin-based or sugar-based material and, mixed with the matrix material, a particulate material, for example colloidal particles of fumed silica. The particles reduce the tendency of the epilatory composition to flow, under warm ambient conditions.10-10-2013
20130276244TOPICAL DEPILATORY AND METHOD OF REMOVING HAIR - A topical depilatory made from the juice of a ripe fruit of the 10-24-2013
20140068874COMPOSITIONS FOR CLEANING APPLICATORS FOR HAIR REMOVAL COMPOSITIONS - A non-aqueous liquid cleaning composition for applicators used for applying non-aqueous hair removal compositions to the skin. The composition includes a solubilizing oil effective for solubilizing the non-aqueous hair removal composition, e.g., mineral oil, and an effective antibacterial amount of an antibacterial agent, e.g., triclosan. The composition may also include fragrances and additional bacteriocides, e.g., phenoxyethanol. When the applicator is contacted with the heated cleaning composition any hair removal composition and bacteria on the applicator are removed therefrom and the applicator is ready for reuse. It is preferred to use surgical stainless steel applicators. Also provided are methods of using these compositions and kits containing, among other items, such compositions and applicators.03-13-2014
20140143960Depilatory Cream Composition - A depilatory cream composition comprising •a depilatory active; and, •a conditioning complex; wherein the conditioning complex comprises: •one or more of: a glycol carboxylate, a dialkyl ether of formula R05-29-2014
20140157528ANTIBACTERIAL HAIR REMOVAL COMPOSITION - An antibacterial, non-aqueous liquid hair removing composition. The composition includes a solubilizing oil effective for solubilizing the ingredients, e.g., mineral oil, and an effective antibacterial amount of an antibacterial agent, e.g., triclosan and/or benzethonium chloride. The composition further includes botanical oils and rosins, e.g., soybean oil, gum rosin, rosin esters and titanium dioxide. The composition may also include fragrances and additional bacteriocides, e.g., phenoxyethanol. The hair removal composition is applied to a person's skin, and after a sufficient amount time, removed from the person's skin with the hair entrapped therein.06-12-2014
20140215726DEPILATORY COMPOSITIONS - A depilatory cream composition including a depilatory active, an emollient selected from at least one of mineral oil and emollient esters, and one or more of a talc and polyamide resin.08-07-2014
20150074923DEPILATORY COMPOSITIONS - The present invention is directed to a depilatory composition which comprises a depilatory active and at least one material which alters the thermal properties of the composition by either having a higher heat of fusion or a lower thermal conductivity than the bulk.03-19-2015
20150113741HAIR REMOVAL COMPOSITIONS - The present invention is directed to a hair removal composition which comprises an epilatory material or a depilatory active and a material having a thermal heat conductivity of from 50 to 2000 Wm04-30-2015
20160038399DEPILATORY WAX COMPOSITION, METHOD FOR OBTAINING SAME AND USE THEREOF - The present invention relates to a fat-soluble depilatory wax composition which includes hydrophilic cosmetic active agents adding cosmetic properties to treatment for the purpose for which this composition is used. In other words, the present invention relates to the method for obtaining said composition and to the use thereof for simultaneously depilating and treating skin.02-11-2016
008940150 Treatment of untanned skins or hides 8
20120144597METHOD FOR TANNING ANIMAL SKINS - The present invention relates to a process for tanning animal hides which comprises the steps of: 06-14-2012
20150344979HIDE ROUTING SYSTEMS AND METHODS - Methods and systems for processing raw animal hides into leather are provided. In particular, one or more embodiments comprise a tanning manager that directs the routing of hides to a plurality of tanning drums. This allows the tanning manager to efficiently use the capacity of the plurality of tanning drums and provides improved consistency in the tanning of the hides. Furthermore, one or more embodiments enable the tanning manager to route hides to tanning drums based on various factors, such as hide type, hide weight, and hide size. In addition, one or more embodiments provide the tanning manager with greater control over the processing of hides into leather by customizing the tanning recipes applied to each batch of hides.12-03-2015
20180023151Method for Processing Skins01-25-2018
008940170 Alkaline material removal 2
20090172890Method for Producing Leather - Process for the production of leather, wherein, after liming, deliming and, if appropriate, pickling, animal hides are pretanned or tanned with a mixture of compounds comprising07-09-2009
20150376726PRODUCTION OF LEATHER - In a method of producing leather comprising a plurality of steps, methanesulfonic acid is used in at least one step.12-31-2015
008940180 With organic material 3
20090293201PROCESS FOR TREATING ANIMAL SKINS - The present invention pertains to a process for decreasing and/or drying skins which comprises contacting the skins to be degreased and/or dried with one or more extractor solvents which are able to dissolve both fat and water. Preferably, the extractor solvent is selected from the group consisting of dimethyl ether (DME), methylal, dioxolane, diethyl ether, methyl ethyl ketone, ethanol, propanol, and isopropanol. Most preferably, the extractor solvent is DME.12-03-2009
20140366280FAT-LIQUORING - A substituted acylaminopolyorganosiloxane (A) is a polyorganosiloxane containing substituted acylamino groups linked to silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo-[alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges. The alkylene contains 2-4 carbon atoms and the substituted acylamino groups are at least in part of formula12-18-2014
20150361514Methods For Preserving Untanned Animal Hides - Methods for preserving untanned animal hides involving contacting the hides with an aqueous suspension containing glycerol, sodium carbonate (and/or sodium bicarbonate), polyethylene glycol, and less than about 20% salt (W/W).12-17-2015
00894019R Tanning 27
008940200 With subsequent treatment 10
20090205142Process for Retanning Leather Using Hollow Microspheres - A process for retanning leather has been found, which is characterized in that 08-20-2009
20130255003ENGINEERED LEATHER AND METHODS OF MANUFACTURE THEREOF - Engineered animal skin, hide, and leather comprising a plurality of layers of collagen formed by cultured animal collagen-producing (e.g., skin) cells. Layers may be formed by elongate multicellular bodies comprising a plurality of cultured animal cells that are adhered and/or cohered to one another; wherein the elongate multicellular bodies are arranged to form a substantially planar layer for use in formation of engineered animal skin, hide, and leather. Further described herein are methods of forming engineered animal skin, hide, and leather utilizing said layers of animal collagen-producing cells.10-03-2013
008940210 Organic material 8
20080196168Washable leather with repellency - A washable leather having durable oil repellency, durable stain release, and durable water repellency is disclosed and a method of its preparation comprising contacting the leather during tanning with a composition which comprises at least one fluorinated urethane; at least one fluorinated ester; a mixture thereof; or a mixture of at least one fluorinated citrate urethane with at least one fluorinated urethane, at least one fluorinated ester, or a mixture of fluorinated urethane and fluorinated ester.08-21-2008
20090249554Leather Treatment and Agent - D-Isoascorbic acid or one of its salts, as such or as a constituent of a liquid or solid formulation, is an effective agent for reducing the amount of Cr(VI) compounds in leathers tanned with Cr(III) salts by treatment of the leather in an aqueous liquor after tanning or finishing or of a commodity article with an aqueous solution.10-08-2009
20100281622LOW-VOC LEATHER - This object relates to a natural leather which is obtained by forming a coating film through the greasing step following re-tanning and dyeing and the drying step. The purpose of this object is to provide a natural leather, wherein the generation of free formaldehyde and acetaldehyde is inhibited, and a treating agent to be added in the greasing step for natural leather. A natural leather wherein formaldehyde and acetaldehyde generated by a tanning agent, a re-tanning agent, a dye and a greasing agent having been incorporated into a leather are confined in the leather with a treating agent to be added in the greasing step for natural leather which contains a hydrazide compound optionally together with sodium hydrogen sulfite to thereby inhibit or prevent the generation of formaldehyde and acetaldehyde, and an automobile interior part coated with this natural leather.11-11-2010
20110078862TOPCOAT - Provided is a natural leather having a novel coating layer which feels leathery. The coating film retains material properties such as strength and wearing resistance. When the user directly touches the natural leather, the coating layer present on the surface of the natural leather gives slick characteristics of natural leathers and smoothness. The natural leather has a coating film formed on a surface thereof, the coating film including: a color coat layer formed from a mixture of a hard component (10% modulus is more than 2.3 but no more than 3.0) and a soft component (10% modulus is more than 0.0 but no more than 1.0) of a two-component polyurethane resin; and a topcoat layer formed from a mixture of a medium component (resin having a 10% modulus of more than 1.0 but no more than 2.3) and a soft component (resin having a 10% modulus of more than 0.0 but no more than 1.0) of a two-component polyurethane resin.04-07-2011
20130263383VEHICLE SEAT COVER LEATHER HAVING EXCELLENT DURABILITY AND METHOD OF FABRICATING THE SAME - Disclosed is a method of fabricating an automotive seat cover leather. The method includes a preparing process, a tanning process, a neutralizing process, a retanning process, an elastic material adding process, a dyeing/fatliquoring process, and a surface fixing process. After the leather has gone through the tanning process and neutralizing process, the retanning process adds a tanning agent to the leather. The elastic material adding process adds a silicon-based elastic material to induce elasticity in the retanned leather. The dyeing/fatliquoring process adds a dye to the leather in which the elastic material has been added and adds an anion fatliquoring agent to the leather to provide flexibility. The surface fixing process fixes the elastic material, dye, and fatliquoring agent on and in the leather.10-10-2013
20150107028CHROME-FREE LEATHER RETANNING - A method for forming chrome-free retanned leather including: (a) contacting wet white with from 1% to 8%, by solids weight, based on the wet weight of wet white, retanning agent selected from the group consisting of: i) an aqueous emulsion polymer including, as copolymerized units, from 2% to 35%, by weight, based on the weight of the emulsion polymer, ethylenically-unsaturated monomer bearing at least one epoxy group, the emulsion polymer having a weight average molecular weight of from 2,000 to 100,000; ii) a compound selected from the group comprising piperazine, piperazine hydrates, salts of piperazine, and combinations thereof; and iii) combinations of i) and ii); (b) heating the contacted wet white; and (c) drying the contacted, heated wet white is provided. The present application also relates to chrome-free retanned leather formed by the method of the invention.04-23-2015
008940220 Fat, fatty oil, fatty oil acid or salt thereof 2
20080201864Copolymers, Production and Use Thereof - The present invention relates to copolymers prepared by copolymerization in at least two stages, wherein, in one stage 08-28-2008
20130312200Non-Metal Tanning Process - Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least a mixture of compounds of formula (I) and formula (II),11-28-2013
008940240 With aldehyde-aromatic condensation product 1
20100325811Leather - A leather is obtained by a process where a re-tanning agent is used which is constituted by synthetic tannin, resin and aluminum. The synthetic tannin is constituted by (a) condensation product of aromatic sulfonic acid with formaldehyde, (b) methylene cyclic polymer of aromatic sulfonic acid with hydroxy aromatic compound, and (c) glyoxal. The resin is constituted by (a) acrylic acid, methacrylic acid, acrylic acid ester or methacrylic acid ester polymer(s), and copolymer(s) thereof, and (b) polycondensation product of melamine with formaldehyde.12-30-2010
008940250 With heavy metal compound 2
008940270 Chromium compound 2
20090158530USE OF CHROMIUM COMPLEX IN THE LEATHER INDUSTRY - This invention is related to the manufacturing process of the modified chromium sulphate used in the tanning process of the animal hides, and chromium tanning process performed by using the said chemical.06-25-2009
20170233835LEATHER OR LEATHER ARTICLE AND METHOD FOR PRODUCING SAME, HEXAVALENT CHROMIUM TREATMENT AGENT, METHOD FOR TREATING HEXAVALENT CHROMIUM IN CRUDE LEATHER OR CRUDE LEATHER ARTICLE08-17-2017
008940290 With aluminum compound 1
20130081211ENVIRONMENTALLY FRIENDLY TANNING COMPOSITION - An embodiment of the present disclosure relates to a composition suitable for leather tanning comprising zeolite treated with monocarboxylic acid and to a method for manufacturing said composition. An embodiment of the present disclosure method comprises providing zeolite into a reactor and keeping said zeolite in motion while introducing concentrated monocarboxylic acid thereto provided that the mean temperature of the resulting composition is 50° C. or below.04-04-2013
008940320 With vegetable extract 1
20100275380AGENT AND METHOD FOR TANNING SKINS AND PELTS - Process for the tanning of hides and skins, characterized in that hides and skins are treated with tanning agents containing deglycosylated iridoids and/or deglycosylated secoiridoids, excluding tanning agents containing genipin.11-04-2010
008940330 With organic material 12
20080229511Process for the Preparation of Synthetic Tanning Agent for Improved Leather Characteristics - Generally, the tanned leathers are retanned with a combination of synthetic tanning agents to enhance the properties such as fullness, grain tightness, grain smoothness and roundness. Many of the chemicals that go into the preparation of such synthetic tanning agents are toxic and slow biodegradable. Further, in industrial practice, several synthetic tanning agents are combined to obtain a desired property. In the present invention, a synthetic tanning agent using natural and proteinous waste materials is disclosed, which provides to the leather the properties such as better fibre lubrication, filling of looser ends, softness, shape retention and fabrication comforts without combining with other synthetic tanning agents is reported.09-25-2008
20080276378Composition for the Pretanning of Pelts - Compositions comprising a) 5 to 50% by weight of an aliphatic dialdehyde having 2 to 10 carbon atoms; b) 2-5 to 20% by weight of at least one reductive saccharide having a dextrose equivalent of 10 to 100; c) 2.5 to 20% by weight of at least one water-soluble, optionally monoetherified polyoxaalkylene glycol having a molecular weight of more than 100 and not more than 2000; and d) 90 to 10% by weight of water, 0.05 to 0.19 mole of the components b) and c) being added per mole of the component a), outstandingly suitable for the pretanning of pelts and subsequent production of leathers free of heavy metals.11-13-2008
20090265861METHOD FOR MANUFACTURING PROTEIN FILLING AGENT FOR LEATHER UTILIZING ANIMAL HAIRS - Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.10-29-2009
20090300848EPOXIDE-BASED TANNAGE SYSTEM - Leather is prepared by tanning animal skins with a poly(glycidylamine) such as trigycidyl isocyanurate. After retannage with vegetable tannins, it is possible to obtain both a mineral-free and aldehyde-free white leather having Ts >85° C. and suitable for automotive internal trim and a mineral-free and aldehyde-free high thermal stable organic leather having Ts >100° C. and suitable for shoe production.12-10-2009
20100162490METHOD FOR THE PRODUCTION OF LEATHER, COPOLYMERS THAT ARE SUITABLE THEREFOR, AND FURTHER USES THEREOF - Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: 07-01-2010
20100192307METHOD FOR THE PRODUCTION OF AQUEOUS FORMULATIONS, AQUEOUS FORMULATIONS, AND THE USE THEREOF - Process for the preparation of aqueous formulations, aqueous formulations and their use08-05-2010
20100199439METHOD FOR THE PRODUCTION OF AQUEOUS FORMULATIONS, AQUEOUS FORMULATIONS, AND THE USE THEREOF - Process for the preparation of aqueous formulations, wherein 08-12-2010
20100223736METHOD FOR TANNING HIDES AND/OR FURS - A method for tanning hides and/or furs comprises at least a first step in which a tanning compound is used, in order to tan said hides and/or furs, to which a saline compound is added.09-09-2010
20120227188METHOD FOR THE PRODUCTION OF LEATHER, COPOLYMERS THAT ARE SUITABLE THEREFOR, AND FURTHER USES THEREOF - Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: 09-13-2012
20140123399SOLID, PARTICULATE TANNING AGENT PREPARATIONS - Solid particulate material containing 05-08-2014
20140182064POLYSACCHARIDE AND/OR POLYPEPTIDE BASED GRAFT POLYMERS AS SYNTHETIC TANNINS - A graft polymer of polysaccharides or polypeptides or its respective derivatives, obtainable by free radical polymerization of A) a monomer selected from or a monomer mixture of (a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of either B1) polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidized hydrolytically degraded or oxidized enzymatically degraded polysaccharides, or such chemically modified degraded products, chemically modified mono-, oligo-or poly-saccharides or mixtures of the stated compounds and/or B2) polypeptides, their hydrolysates or enzymaticallydegraded and optionally chemically modified products or mixtures of the stated compounds in a weight ratio A: (B1 or B2) of from 1:99 to 18:82 or in a weight ratio A:(B1+B2) of from 60:40 to 1:99 and B1:B2 of from 97:3 to 3:97 used as tanning agents.07-03-2014
20140259439Polycarboxylic Acid Polymers For Treatment of Leather - The present invention relates to methods and polymers based upon vinyl type monomers that contain pendant carboxylic acid groups that may be employed for retanning of leather sourced from animal skins or synthetic leather.09-18-2014

Patent applications in all subclasses TREATMENT OF HIDES, SKINS, FEATHERS AND ANIMAL TISSUES

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