| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 525432000 | Mixed with additional polycarboxylic acid and a polyamine; amino carboxylic acid or derivative; polyamine salt of a polycarboxylic acid; lactam; or polymer derived therefrom | 28 |
| 20080293893 | POLY(ESTER AMIDE) BLOCK COPOLYMERS - Provided herein is a copolymer that includes a soft block (A) and a hard block (B) comprising a tyrosine di-peptide. The copolymer can be any of AB, ABA or BAB type block copolymers. The soft block can include a PEA polymer. | 11-27-2008 |
| 20090088536 | HEAT-RESISTANT RESIN PASTE AND METHOD FOR PRODUCING SAME - An object of the present invention is to provide a heat-resistant resin paste that enables the formation of a precise pattern, exhibits excellent adhesiveness, heat resistance and flexibility, and enables a shortening of the production time, as well as a method for producing thereof. The present invention relates to a heat-resistant resin paste, comprising a first organic solvent (A1), a second organic solvent (A2) that comprises a lactone, a heat-resistant resin (B) that is soluble in a mixed organic solvent of (A1) and (A2), and a heat-resistant resin filler (C) that is soluble in (A1) but insoluble in (A2), wherein (C) is dispersed within a solution comprising (A1), (A2) and (B). | 04-02-2009 |
| 20090143541 | Process for preparing a block copolymer from polyimides and use of the block copolymer for producing powders and mouldings - The invention describes a process for preparing pulverulent polyimide-polyimide block copolymers. The result polyimide-polyimide block copolymers and compounds produced using them can be compressed into mouldings by the direct forming method or by the hot compression moulding method. Polymeric mouldings can be produced therefrom by customary mechanical and thermal machining and forming methods. | 06-04-2009 |
| 20090318630 | BLENDS AND ALLOYS BASED ON AN AMORPHOUS TO SEMICRYSTALLINE COPOLYMER, COMPRISING AMIDE UNITS AND COMPRISING ETHER UNITS, WHEREIN THESE MATERIALS HAVE IMPROVED OPTICAL PROPERTIES - Transparent blend or alloy comprising, by weight, the total being 100%: (A) 1 to 99% of at least one copolymer constituent: which is amorphous or has a crystallinity ranging up to semicrystallinity; and which comprises: (A1) amide units, among which is at least one cycloaliphatic unit; (A2) flexible ether units; (B) 99 to 1% of at least one polymer constituent selected from: (Ba) semicrystalline copolyamides comprising amide units (Ba1) and comprising ether units (Ba2), (Bb) semicrystalline polyamides or copolyamides without ether units, (Bc) transparent polyamides or copolyamides without ether units, which are amorphous or weakly crystalline, and alloys based on such polyamides or copolyamides; and (C) 0 to 50% by weight of at least one polyamide, copolyamide, copolyamide comprising ether units or alloy based on such polyamides or copolyamides other than those used in (A) and (B) above. The resulting blend or alloy has a high transparency such that the transmission at 560 nm on a plate 2 mm thick is greater than 50%. | 12-24-2009 |
| 20100004406 | THERMOPLASTIC RESIN COMPOSITION EXCELLENT IN BARRIER PROPERTY - A thermoplastic resin composition comprising 100 parts by mass of a polyamide resin composition (A) and 0.1 to 10 parts by mass of a carbodiimide compound (B) having two or more carbodiimide groups. The polyamide resin composition (A) contains a polyamide resin (a-1) and nylon 11 and/or nylon 12 (a-2) in an amount of 5 to 95% by mass of the component (a-1) and 95 to 5% by mass of the component (a-2) each based on a total amount of the components (a-1) and (a-2). The polyamide resin (a-1) is constituted by diamine units 70 mol % or more of which are derived from m-xylylenediamine and dicarboxylic acid units 70 mol % or more of which are derived from a C | 01-07-2010 |
| 20100137527 | HIGHLY SHRINKABLE FIBER - A highly shrinkable fiber composed of nylon-MXD6 polymer and nylon-6 polymer, characterized in that a weight ratio therebetween is in the range of 35:65 to 70:30, and that each thereof exhibits a breaking strength of 4.00 cN/dtex or greater. Preferably, the weight ratio between nylon-MXD6 polymer and nylon-6 polymer of the highly shrinkable fiber is in the range of 45.55 to 55:45. The highly shrinkable fiber exhibits a high shrinkage ratio in boiling water, so that when the highly shrinkable fiber is used in a woven fabric, there can be realized a high density. | 06-03-2010 |
| 20100234538 | POLYAMIDE - There are provided fibers having excellent mechanical strength such as tensile strength and elastic modulus and a polyamide that is a raw material of the fibers. The polyamide is a polyamide (X) which mainly comprises recurring units represented by the following formulae (A) and (B): | 09-16-2010 |
| 20100273955 | 6,6-Polyimide Copolymers and Processes for Preparing Them - The present invention provides a process for preparing a solvent-soluble polyimide copolymer synthesized from a 6,6-imide segment having an imide oligomer with PMDA at both ends produced by adding 4 molar equivalents of pyromellitic dianhydride (PMDA) and 2 molar equivalents of diaminotoluene (DAT) to an imide oligomer produced by heating 1 molar equivalent of biphenyltetracarboxylic dianhydride (BPDA) and 2 molar equivalents of diaminodiphenyl ether (DADE) at 160-200° C. in the presence of a catalyst in an organic polar solvent. | 10-28-2010 |
| 20110021719 | BIAXIALLY STRETCHED POLYAMIDE RESIN FILM, AND PROCESS FOR PRODUCTION THEREOF - At an optional stage in the production step of a biaxially stretched film using a polyamide resin including, as a first component, nylon 6, and as a second component, a polyamide including xylylenediamine and an aliphatic dicarboxylic acid having 4 to 12 carbon atoms, the film is brought into contact with water set at 40° C. or higher and lower than 70° C. for 1 to 10 minutes and further with water set at 70° C. or higher for 1 to 10 minutes. In the film thus obtained, the content of low molecular weight compounds is 0% by mass to 0.2% by mass. | 01-27-2011 |
| 20110105697 | POLYAMIDE MOULDED MASSES CONTAINING SEMI-CRYSTALLINE TRANSPARENT COPOLYAMIDES FOR PRODUCING HIGH FLEXIBLE TRANSPARENT MOULDED PARTS WITH HIGH NOTCH-IMPACT STRENGTH, LOW WATER ABSORBENCY AND EXCELLENT RESISTANCE TO CHEMICALS - The invention relates to polyamide moulded masses based on semi-crystalline, transparent copolyamides predominantly based on aliphatic monomers, for producing transparent or pigmentable moulded parts with a high level of flexibility, high notch-impact strength (Charpy), low water absorbency and excellent resistance to chemicals, containing between 40 and 100 wt. % of at least one transparent copolyamide (constituent A) with a maximum glass transition temperature (Tg) of 80° C. and a melting temperature of at least 150° C., and a melting enthalpy of at least 20 J/g, preferably at least 30 J/g, consisting of at least two different diamines selected from the group consisting of linear and/or branched-chain aliphatic diamines with between 9 and 14 carbon atoms and cycloaliphatic diamines, especially between 6 and 36 carbon atoms, the concentration of cycloaliphatic diamine being between 10 and a maximum of 40 mol % and the concentration of aliphatic diamine at least 60 mol %, respectively in relation to the total diamine content, and of at least one aliphatic dicarboxylic acid, especially between 6 and 36 carbon atoms, and between 0 and 60 wt. % of at least one other polymer (constituent B) selected from the group consisting of amorphous or semi-crystalline homopolyamides or copolyamides, polyether ester amides, polyether amides, polyester amides or mixtures thereof, between 0 and 10 wt. % of other additives (constituent C) selected from the group consisting of UV stabilisers, heat stabilisers, free-radical scavengers and/or processing auxiliary agents, inclusion inhibitors, lubricants, mould-release auxiliary agents, softeners, functional additives for influencing optical properties, especially the refractive index, impact-resistant modifiers, nanoscale fillers and/or loaders, optical brighteners, dyes or mixtures thereof, the constituents (A), (B) and (C) amounting to 100 wt. %. | 05-05-2011 |
| 20110136990 | POLYMER DERIVATIVE OF DOCETAXEL, METHOD OF PREPARING THE SAME AND USES THEREOF - A method is provided for preparing a polymer derivative of docetaxel provided by an ester linkage between at least one hydroxyl group of docetaxel and a carboxyl group of an aspartic acid side chain of a block copolymer containing polyethylene glycol and polyaspartic acid, which method includes a step of adjusting the ratio and/or the number of docetaxel molecules linked to the block copolymer to thereby control the release rate of docetaxel from the resultant polymer derivative of docetaxel. | 06-09-2011 |
| 20110257345 | METHOD OF SEPARATING AND CLEANING OF POST CONSUMER CARPET FACE YARN FROM CARPET BACKING AND YARN PRODUCT PRODUCED THEREFROM - A process for producing a synthetic fiber composition with reclaimed post consumer carpet yarn, wherein face yarn is shaved from post consumer carpet using a shaving device to provide shaved face yarn, the shaved face yarn is reduced in size, contaminants are removed using mechanical screeners, the shaved face yarn is melt filtered, and spun into fiber. | 10-20-2011 |
| 20120123063 | POLYAMIDE IMIDE RESIN COMPOSITION AND INSULATING SHEET INCLUDING THE POLYAMIDE IMIDE RESIN COMPOSITION - An object of the present invention is to provide a polyamide imide resin composition having excellent in heat resistance, mechanical strength, and tracking resistance. The polyamide imide resin composition includes a polymer blend of a polyamide imide resin including an alicyclic structure and an aromatic polyamide imide resin. | 05-17-2012 |
| 20120172541 | Liquid Crystal Alignment Agent, Liquid Crystal Alignment Film Manufactured Using the Same, and Liquid Crystal Display Device Including the Liquid Crystal Alignment Film - A liquid crystal alignment agent includes a first polymer including polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination thereof. A liquid crystal alignment film manufactured using the liquid crystal alignment agent, and a liquid crystal display including the liquid crystal alignment film are also provided. | 07-05-2012 |
| 20120202953 | GAS SEPARATION MEMBRANE - A gas separation membrane is provided which has both excellent gas permeability and gas separation characteristics, particularly permeability of carbon dioxide (CO | 08-09-2012 |
| 20130123438 | Liquid Crystal Alignment Agent, Liquid Crystal Alignment Film Manufactured Using the Same, and Liquid Crystal Display Device Including the Liquid Crystal Alignment Film - Disclosed is a liquid crystal alignment agent that includes a polymer including a polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination thereof, wherein in Chemical Formulas 1 and 2, X | 05-16-2013 |
| 20130172495 | FUEL PART - This invention relates to a fuel part, comprising a polymer composition comprising at least 1 wt % with respect to the total weight of polymer in the polymer composition of a component A, being an aliphatic, semi-crystalline, polyamide which has as building blocks diamines with at least 2 carbon atoms and at most 5 carbon atoms and diacids with at least 10 carbon atoms. The invention also relates to a process for preparation of such fuel part. | 07-04-2013 |
| 20130184413 | PROCESS FOR THE MANUFACTURE OF A POLYAMIDE - The present invention relates to a process for the manufacture of polyamide. The invention relates more particularly to a process for the manufacture of polyamide from at least one diacid and from at least one diamine, comprising the introduction of lactam and/or of amino acid after a stage of concentration of an aqueous solution of salt of diacid and diamine. | 07-18-2013 |
| 20130324678 | METHOD FOR IMPROVING REJECTION OF PERMEABLE MEMBRANE, TREATMENT AGENT FOR IMPROVING REJECTION, AND PERMEABLE MEMBRANE - Provide is a method capable of effectively improving a rejection of a permeable membrane without remarkably reducing a permeation flux, even if the membrane is seriously degraded. The method for improving a rejection of a permeable membrane supplies an aqueous solution (excluding an aqueous solution having a pH of 7 or less) containing a compound having an amino group and a molecular weight of 1,000 or less through the permeable membrane (amino-treatment step). Since the low molecular weight amino compound is supplied through the permeable membrane, degraded portions of the membrane can be restored without remarkably reducing the permeation flux thereof, and the rejection thereof can be effectively improved. | 12-05-2013 |
| 20140039134 | POLYAMIDE COMPOSITION - Polyamide composition comprising a first polyamide, characterized in that the composition further comprises polyamide-PXD10 in an amount of at least 0.01 wt %, based on the total amount of polyamides in the composition. In a preferred embodiment of the invention, the first polyamide is an aliphatic polyamide chosen from the group of polyamide-6, polyamide-66 and polyamide-46. A fuel part, comprising the polyamide composition is also claimed. | 02-06-2014 |
| 20140046004 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - An IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals comprises: a pair of substrates, at least one which is transparent; a liquid crystal layer disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements connected to the group of electrodes; and an orientation control film disposed on at least one of the pair of substrates, wherein said orientation control film is made of a photosensitive polyimide and a polyamide acid ester and is given orientation control ability by being irradiated with substantially linearly polarized light. | 02-13-2014 |
| 20140275439 | BIODEGRADABLE POLYMER WITH CONTROLLED BIODEGRADABILITY - Disclosed is a biodegradable polymer comprising an optionally substituted aliphatic hydrocarbon group having 5 or more carbon atoms at at least one terminal of the polymer chain, wherein the biodegradable polymer has a weight-average molecular weight of not less than 35,000 when the biodegradable polymer has a 2-pyrrolidone polymer or copolymer as its main chain and stearic acid at the terminal of the polymer chain; a molded article comprising the biodegradable polymer; and a method for controlling biodegradability of a biodegradable polymer, comprising introducing an optionally substituted aliphatic hydrocarbon group into the terminal of the polymer chain of the biodegradable polymer. | 09-18-2014 |
| 20150038652 | BLENDS OF BIORENEWABLE POLYAMIDES AND METHODS OF MAKING THE SAME - The invention discloses a method to produce a blended polymer by mixing polyamide 11 and polyamide 6, 10. The method may be utilize melt mixing or may utilize blended solutions. The invention also includes a blended polymer, wherein the blended polymer is produced from polyamide 11 and polyamide 6,10. | 02-05-2015 |
| 20150119533 | FILM COMPRISING A MIXTURE OF POLY (M-PHENYLENE ISOPHTHALAMIDE) AND COPOLYMER MADE FROM (6)-AMINO-2-(P-AMINOPHENYL) BENZIMIDAZOLE - This invention relates to a film comprising a mixture of at least a first polymer and a second polymer;
| 04-30-2015 |
| 20160032099 | POLYAMIDE RESIN COMPOSITION AND MOLDED ARTICLE USING SAME - The present invention provides a polyamide resin composition containing a polyamide resin (A) in which a diamine constituent unit thereof includes a constituent unit derived from a xylylenediamine (a-1), and a dicarboxylic acid constituent unit thereof includes a constituent unit derived from an α,ω-linear aliphatic dicarboxylic acid (a-2) having from 4 to 20 carbon atoms; and a polyether polyamide (B) in which a diamine constituent unit thereof includes constituent units derived from a polyether diamine compound (b-1) represented by a specified structural formula and a xylylenediamine (b-2), and a dicarboxylic acid constituent unit thereof includes a constituent unit derived from an α,ω-linear aliphatic dicarboxylic acid (b-3) having from 4 to 20 carbon atoms. | 02-04-2016 |
| 20160039977 | POLY(AMIDE-IMIDE) BLOCK COPOLYMER, ARTICLE INCLUDING SAME, AND DISPLAY DEVICE INCLUDING THE ARTICLE - A poly(amide-imide) block copolymer that includes: a first segment including a structural unit represented by Chemical Formula 1C, and a second segment including a structural unit represented by Chemical Formula 2: | 02-11-2016 |
| 20160060461 | Electrical Insulation Paper, Methods of Manufacture, and Articles Manufactured Therefrom - Fibrous substrates containing polyetherimides and other synthetic fibers are disclosed, along with methods of preparing electrical insulation paper and articles comprising the fibrous substrates. | 03-03-2016 |
| 20160068725 | ADHESIVE COMPOSITION AND STRUCTURE COMPRISING AT LEAST ONE LAYER OF THE SAID COMPOSITION - The invention relates to an adhesive composition comprising
| 03-10-2016 |
