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Class Information
Number: 521/48
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom > Treating polyester
Description: Subject matter wherein the scrap or waste product contains a polyester whose polymer backbone was derived through the direct formation of the ester linkage, i.e., - O , and must link through the carbonyl group.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7452918 |
Recycled plastic material, electronic apparatus having the recycled plastic material, method of manufacturing plastic part, method of manufacturing the recycled plastic material, and method of |
Nov. 18, 2008 |
| 7297721 |
Process for controlled polymerization of a mixed polymer |
Nov. 20, 2007 |
| 7214723 |
Method for the decontamination of polyethylene terephthalate |
May. 8, 2007 |
| 7211193 |
Processes for the purification of bis(2-hydroxyethyl)terephthalate |
May. 1, 2007 |
| 7202283 |
Method for dissolving saturated polyester solution for decomposing saturated polyester and method for decomposition using the same |
Apr. 10, 2007 |
| 7192988 |
Process for recycling polyester materials |
Mar. 20, 2007 |
| 7166690 |
Recycled method for a wasted polyester and reclaimed materials thereof |
Jan. 23, 2007 |
| 7141647 |
Image file arrangement for use with an improved image quality assurance system |
Nov. 28, 2006 |
| 7138435 |
Method of decomposing thermosetting resin, apparatus and heat control program |
Nov. 21, 2006 |
| 7135546 |
Method for recycling vinyl polymer-based articles |
Nov. 14, 2006 |
| 7135503 |
Method for reclaiming polyester or polyester mixtures |
Nov. 14, 2006 |
| 7129278 |
Aqueous polymer dispersions |
Oct. 31, 2006 |
| 7081510 |
Shell material for recording media |
Jul. 25, 2006 |
| 7078440 |
Dimethyl terephthalate composition and process for producing the same |
Jul. 18, 2006 |
| 7070624 |
Process for separating polyester from other materials |
Jul. 4, 2006 |
| 7056956 |
Method for recycling a plastic material |
Jun. 6, 2006 |
| 7053130 |
Method to accelerate biodegradation of aliphatic-aromatic co-polyesters by enzymatic treatment |
May. 30, 2006 |
| 7045555 |
Regenerated resin composition |
May. 16, 2006 |
| 7037951 |
Process for regenerating resins |
May. 2, 2006 |
| 7033167 |
Device for purifying and/or decontaminating polyester |
Apr. 25, 2006 |
| 7022751 |
Composite plastic materials produced from waste materials and method of producing same |
Apr. 4, 2006 |
| 6919383 |
CO2-assisted deploymerization, purification and recycling of step-growth polymers |
Jul. 19, 2005 |
| 6887909 |
Processes for producing aqueous alkyd resin dispersions |
May. 3, 2005 |
| 6867322 |
Ester-forming monomer |
Mar. 15, 2005 |
| 6852256 |
Process for upgrading plastic material |
Feb. 8, 2005 |
| 6838496 |
Method and device for processing a thermoplastic condensation polymer |
Jan. 4, 2005 |
| 6833094 |
Dimensionally stable parts having good torsional stability and compositions and methods for making same |
Dec. 21, 2004 |
| 6803389 |
Process for producing polyester resin |
Oct. 12, 2004 |
| 6784214 |
Method and device for recycling pet materials |
Aug. 31, 2004 |
| 6780894 |
Treatment liquid for cured unsaturated polyester resin and treatment method thereof |
Aug. 24, 2004 |
| 6780962 |
(Meth)acrylic ester binders from glycolyzed aromatic polyesters |
Aug. 24, 2004 |
| 6756412 |
Fiber-reinforced recycled thermoplastic composite and method |
Jun. 29, 2004 |
| 6750260 |
Process for chemical recycling of polyurethane-containing scrap |
Jun. 15, 2004 |
| 6734216 |
Plastic recycling |
May. 11, 2004 |
| 6734234 |
Process for preparing value-added RPET-containing polymer blend component |
May. 11, 2004 |
| 6730709 |
Biodegradable recycled polyester resin and production process therefor |
May. 4, 2004 |
| 6723759 |
Recycled resin composition and method for producing the same |
Apr. 20, 2004 |
| 6723873 |
Production of terephthalic acid and ethylene glycol from polyethlene terephthalate by ammoniolysis |
Apr. 20, 2004 |
| 6686399 |
Process for producing alkyd resin |
Feb. 3, 2004 |
| 6642350 |
Method of purifying bishydroxyalkyl terephthalate |
Nov. 4, 2003 |
| 6632918 |
Method of reclaiming crosslinked rubber |
Oct. 14, 2003 |
| 6630601 |
Methods for the preparation or purification of bis-.beta.-hydroxyethyl terephthalate |
Oct. 7, 2003 |
| 6610763 |
Polymer composition, the production and further processing thereof into receptacles |
Aug. 26, 2003 |
| 6599950 |
Process for the recovery and separation of plastics |
Jul. 29, 2003 |
| 6583217 |
Composite material composed of fly ash and waste polyethylene terephthalate |
Jun. 24, 2003 |
| 6573304 |
Method for obtaining polyols and polyol thus obtained |
Jun. 3, 2003 |
| 6562877 |
Recovery of dicarboxylic aromatic acids from polyester-resin contained in articles for recycling |
May. 13, 2003 |
| 6545061 |
Recycling of polyethylene terephthalate with regeneration of acetic acid |
Apr. 8, 2003 |
| 6528546 |
Recycling of articles comprising hydroxy-phenoxyether polymers |
Mar. 4, 2003 |
| 6518322 |
Conversion of contaminated polyethylene terephthalate to decontaminated polybutylene terephthalate |
Feb. 11, 2003 |
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