Class / Patent application number | Description | Number of patent applications / Date published |
525327400 | Polymer derived from carboxylic acid anhydride monomer | 12 |
20100016514 | Silicone Hydrogel Contact Lenses with Convertible Comfort Agents - The invention provides a silicone hydrogel contact lens including a hydrolyzable polymer. The hydrolyzable polymer can be converted by hydrolysis into a hydrophilic polymer which is capable of imparting the silicone hydrogel contact lens a hydrophilic surface without post-curing surface treatment. | 01-21-2010 |
20140058045 | Novel Amphiphilic Graft Copolymers - A novel amphiphilic graft copolymer is described. A process to make amphiphilic graft copolymers via grafting either poly(ethylene oxide) or polylactide side chains onto an EVA platform using oxo-anion ring-opening polymerization chemistry is also described. Polyethylene or polypropylene based graft copolymers are prepared starting from poly(ethylene-co-vinyl acetate) or maleic anhydride grafted isotactic polypropylene respectively. The amphiphilic character will result from the incorporation of hydrophilic poly(ethylene oxide) (PEO) side-chains. Various applications of the novel amphiphilic graft copolymer are also described including, but not limited to, thermoplastic elastomer, films, fibers, fabrics, gels, breathable packaging materials, additive for biodegradable system, surfactant, antistatic additives, polymer compatibilizers, phase transfer catalysts, solid polymer electrolytes, biocompatible polymers, or incorporation into the materials listed above. | 02-27-2014 |
525327500 | Sulfur containing chemical treating agent | 3 |
20120077940 | Method For Preparing A Superplasticizer - The invention chiefly concerns a method for preparing polyalkoxylated polycarboxylates in which the following are caused to react in the presence of water and a catalyst at a temperature of between 120 and 250° C.:
| 03-29-2012 |
20130289218 | POLYCARBOXYLIC ACID DYE WITH LOW POLYMERIZATION DEGREE - The present invention provides a polycarboxylic acid dye with low polymerization degree, which is formed by using a macromolecule skeleton of polymaleic acid linked to an azo chromophore, an azo-metal complexation chromophore or an anthraquinone chromophore via a bridge group of amide or ester bond. The dye is useful for dyeing and printing leather, protein fiber, cellulose fiber and synthetic fiber. | 10-31-2013 |
20140275431 | ALKYL-ACID LIGANDS FOR NANOCRYSTALS - Quantum-dot binding ligands with easy to synthesize alkyl-acids are provided. The quantum-dot binding ligands include a multiplicity of carboxy binding ligands in combination with an alkyl backbone, and optionally a solubilizing group. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures. | 09-18-2014 |
525327600 | Nitrogen containing chemical treating agent other than unsubstituted ammonium as sole nitrogen | 7 |
20100087601 | PRE-ACCELERATED RESIN COMPOSITION - The present invention relates to a pre-accelerated resin composition comprising an unsaturated polyester resin and/or a vinyl ester resin, wherein the composition further comprises a. a copper salt, and b. a compound according to formula (1) in which R can be selected from H, optionally substituted C | 04-08-2010 |
20110098415 | CROSSLINKING OF REACTIVE POLYOLEFIN PREPOLYMERS USING A COREACTANT - The present invention provides a cross linked polyolefin thermoset material, comprising maleic anhydride functionalized reactive polyolefin wax cross linked with a polyamine. The thermoset may be made by a method involving reaction of a maleic anhydride functionalized reactive polyolefin wax with a polyamine. The polyolefin may be polyethylene, polypropylene and their copolymers. The polyamine is a primary or secondary alkyl polyamines, alkyl ether polyamines, aryl polyamines. Polyols may be used instead of polyamines, for example alkyl polyols, alkyl ether polyols or aryl polyols. | 04-28-2011 |
20110288239 | POLYMERIC POLYAMINES AND METHOD FOR PRODUCING THE SAME - The present invention discloses a polymeric polyamine which can be produced by polymerizing polyoxyalkylene-amine and a linker. The linker can be anhydride, carboxylic acid, epoxy, isocyanate or poly(styrene-co-maleic anhydride) copolymers (SMA). The present invention also discloses a method for stabilizing the Ag nanoparticles with polymeric polyamine. The polymeric polyamine serving as a stabilizer or dispersant is mixed with a water solution of silver salt and then a reducer is provided to reduce the silver ions and form an organic or a water solution of Ag nanoparticles. Water or solvent of this solution can be further removed through a heating, freezing or decompression process, and thus solid content of the solution can be increased. The concentrated solution also can be diluted to obtain a stable dispersion without aggregation. | 11-24-2011 |
20120157634 | Soft Particulate Superabsorbent and Use Thereof - Particulate superabsorbents based on at least one monoethylenically unsaturated monomer comprising at least one acid group, in which at least 5 mol % of the acid groups have been neutralized with at least one tertiary alkanolamine, are particularly suitable superabsorbent components of thermoplastic mixtures which are shaped by known shaping processes for thermoplastics to give shaped bodies comprising superabsorbents. | 06-21-2012 |
20130005914 | STYRENE/ANHYDRIDE POLYMERIC MATERIAL AND GRAFT HAVING ENHANCED PROPERTIES - A polymeric material from the styrene family comprises macromolecular chains grafted by nitrogen-containing heterocyclic groups; wherein the macromolecular chains comprise a polymeric backbone to which a grafted agent is attached by at least one covalent bond, the grafting agent comprises, in a single molecule, one or more associative groups capable of being bound by hydrogen bonds, and one or more reactive groups capable of forming covalent bonds with the polymeric backbone, at least one of the associative groups of the modifier is an imidazolidone heterocyclic ring. The mean number of imidazolidone groups to be inserted into the macromolecular chains is dependent both on the mean mass of said chains and on the final properties to be imparted to the material. Objects such as tubes, films, plates, stiffenerss, bottles and containers can be made. | 01-03-2013 |
20150148494 | Novel Polyesters Containing Polyolefin Arms - This invention relates to a polymer product of an anhydride functionalized polymer with a cyclic epoxide, and processes for the production thereof. | 05-28-2015 |
20150315307 | MODIFICATION OF POLYMERS CONTAINING AN ANHYDRIDE AND USES THEREOF - The present invention provides polymers resulting from modification of polymeric moieties containing an anhydride with modifying reactant moieties. The invention further provides a wide variety of compositions comprising the and modified polymeric moieties containing an anhydride. The letters b, d, e, and z are described herein. | 11-05-2015 |