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Class Information
Number: 528/286
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From carboxylic acid or derivative thereof > From di- or higher ester of a polycarboxylic acid as sole reactant, or from a polycarboxylic acid or derivative with a compound containing two or more hydroxyl groups or salts thereof > Polymerizing in the presence of a specified material other than reactant > Material contains a phosphorus atom
Description: Subject matter wherein the specified material contains at least one phosphorus atom.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8653224 Resin composition for manufacturing thermoplastic polyester resin by using green catalyst Feb. 18, 2014
8586701 Process for the preparation of copolyesters based on 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol Nov. 19, 2013
8563677 Non-precipitating alkali/alkaline earth metal and aluminum solutions made with diols having at least two primary hydroxyl groups Oct. 22, 2013
8557950 High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates Oct. 15, 2013
8476386 Hyperbranched polymers and their applications Jul. 2, 2013
8362190 Method for producing hyperbranched polymer Jan. 29, 2013
8313881 Polyester resin and toner including the same Nov. 20, 2012
8293862 Polyester polymerization catalyst, polyester produced by using the same, and a process for producing polyester Oct. 23, 2012
8258253 Solid state polymerization process for polyester with phosphinic acid compounds Sep. 4, 2012
8207289 High molecular weight polyester polymers with reduced acetaldehyde Jun. 26, 2012
8148489 Thermoplastic resins containing PBT units, having reduced organic carbon emissions Apr. 3, 2012
8143356 Polyester resin composition, process for producing the same and molding thereof Mar. 27, 2012
8124307 Toner having polyester resin Feb. 28, 2012
8058360 Polyester blends exhibiting low temperature toughness Nov. 15, 2011
7868126 Process for producing polyester, polyester produced using said process, and polyester molded product Jan. 11, 2011
7759449 Methods for introducing additives into polyethylene terephthalate Jul. 20, 2010
7683122 Processes for increasing polymer inherent viscosity Mar. 23, 2010
7678878 Process for producing polyester with metal phosphonic acid complex catalysts Mar. 16, 2010
7544762 Catalyst for preparation of polyester and process for preparing polyester using the catalyst Jun. 9, 2009
7528219 Method for incorporating nitrogen containing methine light absorbers in PET and compositions thereof May. 5, 2009
7514526 Process for preparing a stabilized polyester Apr. 7, 2009
RE40571 Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester Nov. 11, 2008
7439317 Amorphous polyester chip and method for production thereof, and method for storage of amorphous polyester chip Oct. 21, 2008
7381787 Polytrimethylene terephthalate having a low level of acrolein and a process for producing the same Jun. 3, 2008
7358328 Method and device for increasing the intrinsic viscosity of polyester material by means of solid phase polymerisation Apr. 15, 2008
7335719 Polyester based on poly(trimethylene terephthalate) Feb. 26, 2008
7335318 Method for manufacturing wholly aromatic liquid-crystalline polyester resin Feb. 26, 2008
7321014 Transparent compositions, methods for the preparation thereof, and articles derived therefrom Jan. 22, 2008
7282555 Method for incorporating nitrogen containing methine light absorbers in pet and compositions thereof Oct. 16, 2007
7208565 Polymerization catalyst for polyesters, polyester produced with the same, and process for production of polyester Apr. 24, 2007
7205357 Polyester resin composition for toner Apr. 17, 2007
7205379 Process for preparing a stabilized polyester Apr. 17, 2007
7199212 Polymerization catalyst for polyesters, polyesters produced with the same and process for producing polyesters Apr. 3, 2007
7196158 Knitted/woven fabric of polyester fiber Mar. 27, 2007
7189797 Process for producing poly(ethylene-aromatic dicarboxylate ester) resin and resin product Mar. 13, 2007
7179869 Process for producing polyester resins Feb. 20, 2007
7163977 Method to reduce the aldehyde content of polymers Jan. 16, 2007
7144974 Polyester production method, polyester composition, and polyester fiber Dec. 5, 2006
7144614 Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester Dec. 5, 2006
7129317 Slow-crystallizing polyester resins Oct. 31, 2006
RE39246 Esterification catalysts and processes therefor and therewith Aug. 22, 2006
7087299 Polyester fibers and false twist-textured yarn comprising same Aug. 8, 2006
7057006 Stable aqueous solutions comprising titanium and zinc and process therewith Jun. 6, 2006
7048995 Polyester resin, molded product made thereof and process for production of polyester resin May. 23, 2006
7026035 Laminated film for optical use Apr. 11, 2006
6998462 Polyester process Feb. 14, 2006
6855797 Stable aqueous solutions comprising titanium and zinc and process therewith Feb. 15, 2005
6787630 Process for the preparation of heat-stable, antimony-free polyesters of neutral color and the products which can be prepared by this process Sep. 7, 2004
6783827 Method or decreasing the cyclic oligomer content in polyester product Aug. 31, 2004
6706852 Partially ester-exchanged SIPM and process therewith Mar. 16, 2004

1 2 3 4 5

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