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Class Information
Number: 528/272
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
Description: Subject matter involving a polymer derived (1) from one or more di- or higher esters of a polycarboxylic acid as the sole reactant or reactants, or (2) from at least a polycarboxylic acid or derivative thereof and at least a compound containing two or more hydroxyl groups or salts thereof.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622546 |
Production process of aliphatic polyester |
Nov. 24, 2009 |
| 7622545 |
Polyester resins with a special co-catalyst for high melt poly and SSP reactivity with enhanced color values |
Nov. 24, 2009 |
| 7622544 |
Process for preparation of biodegradable polymers and resins from proteins, and plastics obtained thereby |
Nov. 24, 2009 |
| 7622543 |
Polymerization of macrocyclic polyester oligomers using N-heterocyclic carbene catalysts |
Nov. 24, 2009 |
| 7612161 |
Method for treating extremely small particles of plastic |
Nov. 3, 2009 |
| 7611725 |
Additives and products including oligoesters |
Nov. 3, 2009 |
| 7608309 |
Resin composition, film and image display device utilizing the resin composition |
Oct. 27, 2009 |
| 7601795 |
Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
Oct. 13, 2009 |
| 7601765 |
UV-active binding agent |
Oct. 13, 2009 |
| 7592413 |
Manufacture of aromatic polyester |
Sep. 22, 2009 |
| 7585931 |
Optically active high-molecular compounds |
Sep. 8, 2009 |
| 7585921 |
Resin for toner binder and toner composition |
Sep. 8, 2009 |
| 7582721 |
Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom |
Sep. 1, 2009 |
| 7579431 |
Method for treating extremely small particles of polyethylene terephthalate |
Aug. 25, 2009 |
| 7579428 |
Process for preparation of polyesters without solid state polymerization |
Aug. 25, 2009 |
| 7576173 |
Single solvent polymer extraction methods |
Aug. 18, 2009 |
| 7576171 |
Pacifiers comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol |
Aug. 18, 2009 |
| 7569320 |
Polyester resin for toner, toner for developing electrostatic charge image and method for forming image |
Aug. 4, 2009 |
| 7560526 |
Polyol with high cyclopentane solubility |
Jul. 14, 2009 |
| 7557176 |
Polyhydroxyalkanoic acid having vinyl, ester, carboxyl or sulfonic acid group and producing method therefor |
Jul. 7, 2009 |
| 7557175 |
Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers |
Jul. 7, 2009 |
| 7557167 |
Polyester compositions, methods of manufacturing said compositions, and articles made therefrom |
Jul. 7, 2009 |
| 7553923 |
Medical devices and applications of polyhydroxyalkanoate polymers |
Jun. 30, 2009 |
| 7550555 |
Sintering ultrahigh molecular weight polyethylene |
Jun. 23, 2009 |
| 7544746 |
Hyperbranched polymers |
Jun. 9, 2009 |
| 7541423 |
Polyester process using a pipe reactor |
Jun. 2, 2009 |
| 7541422 |
Enzyme-catalyzed process for the preparation of macrocyclic polyester oligomers |
Jun. 2, 2009 |
| 7541407 |
Process for adding methine UV light absorbers to PET prepared by direct esterification |
Jun. 2, 2009 |
| 7538180 |
Biologically absorbable coatings for implantable devices based on poly(ester amides) and methods for fabricating the same |
May. 26, 2009 |
| 7538179 |
Process for producing aliphatic polyester |
May. 26, 2009 |
| 7538178 |
Process for producing aliphatic polyester |
May. 26, 2009 |
| 7534854 |
Apparatus and method for oxidation and stabilization of polymeric materials |
May. 19, 2009 |
| 7531618 |
Polyester process using a pipe reactor |
May. 12, 2009 |
| 7531617 |
Continuous process for producing poly(trimethylene terephthalate) |
May. 12, 2009 |
| 7531615 |
Thermally stable polycarbonates, thermoplastic compositions thereof, and articles formed therefrom |
May. 12, 2009 |
| 7528219 |
Method for incorporating nitrogen containing methine light absorbers in PET and compositions thereof |
May. 5, 2009 |
| 7528218 |
Polyester for toner |
May. 5, 2009 |
| 7528217 |
Polymers and fibers formed therefrom |
May. 5, 2009 |
| 7528216 |
Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom |
May. 5, 2009 |
| 7528211 |
Method for controlled polymerization of o-carboxy anhydrides derived from .alpha.-hydroxy acids |
May. 5, 2009 |
| 7524921 |
Continuous manufacture of poly(trimethylene terephthalate) |
Apr. 28, 2009 |
| 7524920 |
Biaxially oriented copolyester film and laminates thereof |
Apr. 28, 2009 |
| 7521523 |
Oxygen-scavenging polyester compositions useful in packaging |
Apr. 21, 2009 |
| 7521522 |
Method and device to reduce the acetaldehyde content of polyester granulate |
Apr. 21, 2009 |
| 7517635 |
Polyester compound and resist material using the same |
Apr. 14, 2009 |
| 7514525 |
Recovery and purification of polyhydroxyalkanoates |
Apr. 7, 2009 |
| 7514524 |
Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom |
Apr. 7, 2009 |
| 7514521 |
Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
Apr. 7, 2009 |
| 7511115 |
Method of preparing biodegradable polyester polymer material in the form of filament and sheet using compressed gas |
Mar. 31, 2009 |
| 7511081 |
Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof |
Mar. 31, 2009 |
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