| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528287000 | Phosphorus-containing reactant | 9 |
| 20090203870 | METHOD FOR THE SYNTHESIS OF A POLYOXADIAZOLE POLYMER - A polyoxadiazole polymer is synthesized by heating polyphosphoric acid to a temperature of at least about 160° C. and making a solution by mixing hydrazine sulfate salt with one or more dicarboxylic acids or their derivatives in the heated polyphosphoric acid. The solution is heated under an inert gas atmosphere and the polymer is precipitated in a basic solution. The polyoxadiazole polymer can be produced as a homopolymer or copolymer, and may be used to produce a membrane or fibers. | 08-13-2009 |
| 20090253888 | Solid state polymerization process for polyester with phosphinic acid compounds - Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C | 10-08-2009 |
| 20110065890 | CALCIUM PHOSPHATE/BIODEGRADABLE POLYMER HYBRID MATERIAL, METHOD FOR PRODUCING SAME AND IMPLANT USING THE HYBRID MATERIAL - The present invention provides a calcium phosphate/biodegradable polymer hybrid material with high strength prepared by complexing a calcium phosphate porous material and a biodegradable polymer having a average molecular weight of 50,000 to 500,000, an implant comprising the hybrid material, and a method for producing a calcium phosphate/biodegradable polymer hybrid material prepared by immersing the calcium phosphate porous material within a solution including a biodegradable polymer and performing an ultrasonic treatment or a suction treatment. | 03-17-2011 |
| 20110086998 | AN ALIPHATIC POLYESTER RESIN AND A PROCESS FOR PRODUCING IT - The present invention is an aliphatic polyester resin in which a polyhydroxy acid skeleton is a main component, manufactured using a polymerization catalyst, characterized in that a specific organophosphorus compound is copolymerized in the resin. Activity of the polymerization catalyst contained in the aliphatic polyester resin of the present invention after the polymerization is well lowered and a lactide is hardly produced even by heating after the polymerization or after the manufacture. | 04-14-2011 |
| 20120322968 | FLAME-RETARDANT POLYESTER COPOLYMER - The invention provides a production process of a flame-retardant polyester copolymer, having a first step of adding a catalyst to a 2,5-furan dicarboxylic acid compound, an aliphatic or alicyclic diol, itaconic acid and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to obtain an oligomer, and a second step of adding a catalyst to the oligomer obtained in the first step to conduct polycondensation, thereby obtaining the flame-retardant polyester copolymer. | 12-20-2012 |
| 20130041127 | ALIPHATIC POLYESTER RESIN AND A PROCESS FOR PRODUCING IT - The present invention is an aliphatic polyester resin in which a polyhydroxy acid skeleton is a main component, manufactured using a polymerization catalyst, characterized in that a specific organophosphorus compound is copolymerized in the resin. Activity of the polymerization catalyst contained in the aliphatic polyester resin of the present invention after the polymerization is well lowered and a lactide is hardly produced even by heating after the polymerization or after the manufacture. | 02-14-2013 |
| 20130281654 | STAR-AND TREE-SHAPED BRANCHED POLYMERS HAVING FLAME-RETARDANT PROPERTIES - Disclosed are polymers with a complex branched structure (star- or tree-shaped) obtainable by polymerizing a bifunctional type AB monomer and/or type AA+BB monomers in the presence of: a) one or more polyamine and/or a polyacid and/or a polyalcohol and/or more generally a compound (such as POSS) having at least three functional groups such as amino, carboxylic acid or hydroxyl functions; b) one or more phosphorus containing molecules reacting with only one reactive group during the polymerization; c) optionally one or more organic acid and/or an amine and/or an alcohol having one or two functional groups. | 10-24-2013 |
| 20150291732 | MODIFIED PHOSPHORUS-CONTAINING UNSATURATED POLYESTER - A modified phosphorus-containing unsaturated polyester being represented by Formula I is provided: | 10-15-2015 |
| 20160251485 | FLAME-RETARDANT POLYMERS DERIVED FROM POLYOLS AND POLYACIDS | 09-01-2016 |
