Class / Patent application number | Description | Number of patent applications / Date published |
526318400 | With ester monomer | 25 |
20120108776 | METHOD FOR MANUFACTURING CARBOXYL GROUP-CONTAINING WATER-SOLUBLE POLYMER - In manufacturing of a carboxyl group-containing water-soluble polymer by a precipitation polymerization method, a method which can improve production efficiency with increasing practicality continuously adds a monomer solution wherein a monomer component containing an α,β-unsaturated carboxylic acid is dissolved in an inert solvent in a concentration of 20 to 50% by volume to an inert solvent charged in a reaction vessel. In this case, the amount of the inert solvent charged in the reaction vessel is set so that the concentration of the monomer component in the total amount summed up with the monomer solution is 10 to 24% by volume, and the time period until completion of continuous addition of the total amount of the monomer solution is set so that the conversion of the monomer component at the time of completion of addition of the total amount of the monomer solution is 60% or more. The monomer component may contain a polymerizable compound having two or more ethylenically unsaturated groups. | 05-03-2012 |
20160017187 | ADHESIVES COMPRISING CROSSLINKER WITH (METH)ACRYLATE GROUP AND OLEFIN GROUP AND METHODS - A pressure sensitive adhesive composition is described comprising at least 50 wt-% of polymerized units derived from alkyl meth(acrylate) monomer(s); and 0.2 to 15 wt-% of at least one crosslinking monomers comprising a (meth)acrylate group and a C | 01-21-2016 |
526318410 | Monomer contains chalcogen other than in C(=O)-O- chalcogen in any monomer) | 15 |
20120329971 | Low VOC Aqueous Polymer Dispersions - Resins derived significantly from renewable or recyclable starting materials may be formed from the reaction product of a monomer blend that includes an ethylenically unsaturated macromonomer and at least one other ethylenically unsaturated monomer, which may be acid functional. The ethylenically unsaturated macromonomer may be derived from the reaction of an acid functional intermediate, which may be the acidolysis reaction product of an engineered polyester and an acid or anhydride functional material with an hydroxyl-functional, amine-functional, or epoxy functional reactant, optionally in the presence of a polyacid, to yield a resin intermediate, which may subsequently be reacted with an ethylenically unsaturated coupling agent to yield the macromonomer. The resins described herein are useful in generating low VOC acrylic alkyd coatings. Methods of producing water reducible resins are also described. | 12-27-2012 |
20130102750 | METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN POWDER - A water absorbent resin having less fine powder or powdery dust and a controlled particle size is provided, and the water absorption rate of the water absorbent resin is increased by a simple method at low cost, while maintaining or improving other physical properties such as liquid permeability. Disclosed is a method for producing a polyacrylic acid (salt)-type water absorbent resin powder, which includes, in sequence, a step of polymerizing an aqueous solution of acrylic acid (salt)-type monomer; a step of gel-crushing a gel of a water-containing gel-like crosslinked polymer during polymerization or after polymerization; a step of drying the water-containing gel-like crosslinked polymer; and a step of pulverizing and classifying the dried polymer, wherein water absorbent resin fine particles having a particle size of less than 150 μm or a hydrated-particles thereof is added to a step prior to the drying step, and in the drying step, hot air drying is carried out with a hot air having an average flow velocity of 1.0 to 3.0 [m/s], a dew point of 30° C. to 100° C., and a hot air temperature of 140° C. to 235° C. | 04-25-2013 |
20130225779 | WATER-SOLUBLE OR WATER-DISINTEGRABLE COPOLYMER - A copolymer based on α-β-unsaturated monocarboxylic acid, wherein the copolymer has a molar mass <100 000 g/mol. | 08-29-2013 |
20140066584 | PROCESS FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES - The invention relates to a process for producing water-absorbing polymer particles, comprising polymerization, drying the resulting polymer gel on a through circulation belt dryer, crushing the dried polymer gel, pre-grinding, separating of incompletely dried particles with a perforated plate, grinding and classifying the resulting polymer particles. | 03-06-2014 |
20140296465 | POLYACRYLIC ACID-BASED WATER-ABSORBING RESIN POWDER AND METHOD FOR PRODUCING THE SAME - A method for producing a polyacrylic water-absorbent resin powder includes the steps of: producing an acrylic monomer solution in which gas is dissolved and/or dispersed; polymerizing the monomer solution in the absence of a surface active agent or in the presence of not more than 300 ppm of a surface active agent; during or after polymerizing, fragmenting the resulting hydrated gel crosslinked polymer; and drying the fragmented hydrated gel crosslinked polymer, the gas being dissolved and/or dispersed in the monomer solution by (a) applying pressure to the acrylic monomer solution and the gas; (b) creating swirling flows of the acrylic monomer solution and the gas; or (c) introducing the gas with the acrylic monomer solution via fine holes. The production method efficiently produces a water-absorbent resin having an excellent water-absorption rate without deteriorating a liquid-absorbent property of a sanitary product or the like. | 10-02-2014 |
20150105527 | HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED - The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature in the range of from 100 to 250° C. in a fluidized bed dryer under specifically adapted apparatus and method conditions, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention. | 04-16-2015 |
526318420 | Hydroxyl group | 9 |
20110237767 | Process for Removing Residual Monomers from Water-Absorbing Polymer Particles - A process for removing residual monomers from water-absorbing polymer particles, wherein the water-absorbing polymer particles are thermally aftertreated in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water vapor. | 09-29-2011 |
20120302714 | Process for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a kneader having at least two shafts in axially parallel rotation, wherein the reaction mixture is transported in axial direction and the region at the start of the kneader is trace-heated. | 11-29-2012 |
20120309920 | Process for Continuously Producing Water-Absorbing Polymer Particles - A process for continuously producing water-absorbing polymer particles, wherein the acrylic acid used to produce the polymer particles has a low purity. | 12-06-2012 |
20120329972 | Low VOC Aqueous Polymer Dispersions - Resins derived significantly from renewable or recyclable starting materials may be formed from the reaction product of a monomer blend that includes an ethylenically unsaturated macromonomer and at least one other ethylenically unsaturated monomer, which may be acid functional. The ethylenically unsaturated macromonomer may be derived from the reaction of an acid functional intermediate, which may be the acidolysis reaction product of an engineered polyester and an acid or anhydride functional material with an hydroxyl-functional, amine-functional, or epoxy functional reactant, optionally in the presence of a polyacid, to yield a resin intermediate, which may subsequently be reacted with an ethylenically unsaturated coupling agent to yield the macromonomer. The resins described herein are useful in generating low VOC acrylic alkyd coatings. Methods of producing water reducible resins are also described. | 12-27-2012 |
20130018162 | COPOLYMER AND CEMENT DISPERSANT INCLUDING THE COPOLYMERAANM Ikeda; AkiraAACI Sodegaura-shiAACO JPAAGP Ikeda; Akira Sodegaura-shi JPAANM Suga; AkiraAACI Sodegaura-shiAACO JPAAGP Suga; Akira Sodegaura-shi JPAANM Kobayashi; SatoshiAACI Sodegaura-shiAACO JPAAGP Kobayashi; Satoshi Sodegaura-shi JP - A cement dispersant that includes a copolymer resulting from a reaction of components (A) to (C), where: (A) is an ester compound obtained by adding 0 to 10 moles of C | 01-17-2013 |
20140194585 | BULK POLYMERIZATION OF (METH)ACRYLATE COPOLYMERS SOLUBLE UNDER AQUEOUS-ALKALINE CONDITIONS - The invention relates to the synthesis of (meth)acrylate-based mass polymers which are soluble in aqueous alkaline. The invention in particular relates to the synthesis of polymers by means of a mass polymerization. Said mass polymers have a significantly improved solubility in aqueous alkaline media over corresponding polymers produced by means of a heterogeneous aqueous polymerization method, such as emulsion or suspension polymerization. Improved solubility in said context refers to the dissolution rate being faster among particles of equal size, to no significant turbidity remaining after dissolution and to the viscosity of the obtained solutions being lower at the identical ratio of solids content. Furthermore, the compatibility of the compounds according to the invention with water-based varnishes is at least comparable or even improved. | 07-10-2014 |
20140343240 | POLY(CARBOXYLIC ACID)-BASED POLYMER FOR HYDRAULIC MATERIAL ADDITIVE - The present invention provides a poly(carboxylic acid) polymer for a hydraulic material additive excellent in dispersion performance for a hydraulic material, workability, and stability of quality and also provides a hydraulic material additive containing the poly(carboxylic acid) polymer, and a hydraulic material. | 11-20-2014 |
20160046747 | ALKALINE-SWELLABLE EMULSION POLYMERS - Emulsion polymer particles comprising from 25 to 45 wt % polymerized residues of at least one C | 02-18-2016 |
20160168291 | A HYDROPHOBIC ALKALI SOLUBLE EMULSION THICKENER | 06-16-2016 |
526318430 | Monomer contains two or more ester groups | 2 |
20080287631 | Process for Preparing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymeric particles comprises the steps of
| 11-20-2008 |
20150337179 | PRESSURE-SENSITIVE ADHESIVES PREPARED FROM DEGRADABLE MONOMERS AND POLYMERS - Pressure-sensitive adhesives that have good performance characteristics under typical use conditions and that later can be degraded and/or removed readily under basic conditions are provided. More specifically, the pressure-sensitive adhesives contain a copolymeric (meth)acrylic-based elastomeric material prepared from a polymerizable material that contains a (meth)acrylate monomer having both a (meth)acryloyl group plus an ester linkage that is not part of a (meth)acryloyl group. | 11-26-2015 |
526318440 | Two or more ester monomers | 5 |
20100069593 | ADHESIVE COMPOSITION AND ADHESIVE FILM - An adhesive composition of the present invention includes, as a main component, a polymer produced by copolymerization of a monomer composition including: styrene; a (meth)acrylic acid alkyl ester having a chain structure; a (meth)acrylic acid ester having an aliphatic ring; and a (meth)acrylic acid ester having an aromatic ring, wherein: the styrene is contained in a range of 40 to 69 parts by mass; the (meth)acrylic acid alkyl ester having the chain structure is contained in a range of 20 to 30 parts by mass; the (meth)acrylic acid ester having the aliphatic ring is contained in a range of 10 to 25 parts by mass; and the (meth)acrylic acid ester having the aromatic ring is contained in a range of 1 to 5 parts by mass, where the total amount of the above components is 100 parts by mass. This allows for provision of an adhesive composition having high adhesive strength under high-temperature environment, as well as high heat resistance, high alkali resistance, and easiness in stripping from semiconductor wafers and the like even after high-temperature processing. | 03-18-2010 |
20110166311 | PRESSURE-SENSITIVE ADHESIVES FOR BONDING PRINTING PLATES - Crosslinked pressure-sensitive adhesive comprising at least one base polymer component obtainable by free-radical copolymerization of the following monomers:
| 07-07-2011 |
20130131299 | PROCESS FOR PRODUCING CARBOXYL-CONTAINING POLYMER COMPOSITION, AND CARBOXYL-CONTAINING POYLMER COMPOSTION - A process is disclosed for producing a carboxyl-containing polymer composition that allows the possibility of obtaining a carboxyl-containing polymer composition which exhibits excellent dispersibility in water or the like, has a viscosity increasing to a lower degree compared to the viscosity of a neutralized viscous liquid using an additive-free carboxyl-containing polymer, and has a high degree of transparency in a neutralized viscous liquid thereof. A carboxyl-containing polymer composition is obtained by polymerizing a monomer containing an α,β-unsaturated carboxylic acid as a main component in a presence of a polyol (iso)stearic acid ester. A polyol in the polyol (iso)stearic acid ester is a polyol selected from a specific group, and the polyol (iso)stearic acid ester is used in the polymerization in an amount of 0.2 to 7 parts by mass based on 100 parts by mass of the α,β-unsaturated carboxylic acid. | 05-23-2013 |
20140046016 | RESIN COMPOSITION FOR OPTICAL FILM AND OPTICAL FILM USING THE SAME - The present invention relates to a resin composition for an optical film comprising a copolymer which includes an alkyl (meth)acrylate unit, a (meth)acrylate unit having a benzene ring, and a (meth)acrylic acid unit, wherein a content of a residual monomer is less than 2000 ppm in the resin composition and an optical film using the same. | 02-13-2014 |
20150361202 | RESIN FOR BLISTER PACKAGE AND PREPARATION METHOD THEREOF - The present invention relates to a resin for a blister package and a preparation method thereof. The resin for a blister package according to the present invention is a water-soluble resin which can minimize a hazard to a human body due to residual of a solvent, and particularly, a resin layer formed by using the resin can show an excellent heat seal property and is hardly deformed at the heat seal temperature condition. | 12-17-2015 |
526318450 | With hydrocarbon monomer | 1 |
20160200844 | COPOLYMER WITH HIGH CHEMICAL HOMOGENEITY AND USE THEREOF FOR IMPROVING THE COLD FLOW PROPERTIES OF FUEL OILS | 07-14-2016 |