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Class Information
Number: 528/481
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Treating polymer containing material or treating a solid polymer or a resinifiable intermediate condensation product > Treating at o deg c (32 deg f) or below, or at 200 deg c (392 deg f) or above
Description: Processes wherein a polymer or a polymer-containing material is cooled to 0°C (32°F) or less, or is heated to a temperature of 200°C (392°F) or higher.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5663290 |
Process for crystallization of poly(ethylenenaphthalenedicarboxylate) |
Sep. 2, 1997 |
| 5652312 |
Redistribution of organic polyestercarbonate compositions |
Jul. 29, 1997 |
| 5650484 |
Feedback control system for polymer modification of toner resins and toners |
Jul. 22, 1997 |
| 5648454 |
Process for producing high ductile polyesters |
Jul. 15, 1997 |
| 5635589 |
Process for production of condensation polymers |
Jun. 3, 1997 |
| 5631326 |
Crosslinked nitrogen-containing vinyl copolymers processes for their preparation and the use of these compounds |
May. 20, 1997 |
| 5631346 |
Thermomechanical degradation of polyolefins |
May. 20, 1997 |
| 5621069 |
Method for preparation of conjugated arylene and hetroarylene vinylene polymers |
Apr. 15, 1997 |
| 5621070 |
Ultra high molecular weight linear polyethylene processes of manufacture |
Apr. 15, 1997 |
| 5610266 |
Copolymers of trimethylenecarbonate and optionally inactive lactides |
Mar. 11, 1997 |
| 5610262 |
Process for producing polycarbonate |
Mar. 11, 1997 |
| 5608030 |
Process for the preparation of polyacetals |
Mar. 4, 1997 |
| 5602187 |
Polyethylene terephthalate decontamination |
Feb. 11, 1997 |
| 5599900 |
Polyesters production process |
Feb. 4, 1997 |
| 5597891 |
Process for producing polyester articles having low acetaldehyde content |
Jan. 28, 1997 |
| 5591795 |
Polypropylene composition |
Jan. 7, 1997 |
| 5580905 |
Process for recycling polyesters |
Dec. 3, 1996 |
| 5578699 |
Process for making amino functional poly(para-phenylene vinylene)s |
Nov. 26, 1996 |
| 5576362 |
Insulating material and a circuit substrate in use thereof |
Nov. 19, 1996 |
| 5576456 |
Recovery of components from polyester resins |
Nov. 19, 1996 |
| 5569510 |
Process for the production of polyester resins for fibers |
Oct. 29, 1996 |
| 5554717 |
Synthesis of polyanilines and its co-polymers by melt condensation |
Sep. 10, 1996 |
| 5552513 |
Atomospheric pressure polyester process |
Sep. 3, 1996 |
| 5545364 |
Process for the preparation of heat resistant polyester film |
Aug. 13, 1996 |
| 5543495 |
Process for increasing the molecular weight of polyamides and other condensation polymers |
Aug. 6, 1996 |
| 5541284 |
Method for processing crude polyoxymethylene |
Jul. 30, 1996 |
| 5541285 |
Method to process narrow molecular weight distribution polyolefins |
Jul. 30, 1996 |
| 5536810 |
Process for thermal treatment of polyester chips in the solid state |
Jul. 16, 1996 |
| 5532333 |
Production of poly(ethylene terephthalate) |
Jul. 2, 1996 |
| 5532323 |
Method for production of absorbent resin |
Jul. 2, 1996 |
| 5532335 |
Method for thermally processing polyester pellets |
Jul. 2, 1996 |
| 5530049 |
Solutions of perfluorinated polymers in CO.sub.2 |
Jun. 25, 1996 |
| 5525681 |
Polyurea polymers having improved high temperature stability and method of making same |
Jun. 11, 1996 |
| 5521278 |
Integrated process for the manufacture of lactide |
May. 28, 1996 |
| 5519112 |
Method of manufacturing polyesters |
May. 21, 1996 |
| 5516877 |
Crosslinkable carbonate polymers of dihydroxyaryl fluorene |
May. 14, 1996 |
| 5504131 |
Solvent free oil soluble drag reducing polymer suspension |
Apr. 2, 1996 |
| 5503932 |
Organic-inorganic composite particles and production process therefor |
Apr. 2, 1996 |
| 5504121 |
Polyethylene terephthalate decontamination |
Apr. 2, 1996 |
| 5504122 |
Recovery of dimethyl terephthalate from polymer mixtures |
Apr. 2, 1996 |
| 5498677 |
Process for preparation and purification of material of a cycloolefin copolymer |
Mar. 12, 1996 |
| 5496923 |
Purification process of aliphatic polyester |
Mar. 5, 1996 |
| 5496919 |
Process for production of styrene-based polymer moldings |
Mar. 5, 1996 |
| 5484869 |
Formed organosiloxane amine copolycondensates, method of their preparation and use |
Jan. 16, 1996 |
| 5474730 |
Production of highly birefringent film |
Dec. 12, 1995 |
| 5473031 |
Branched polystyrene production by free radical bulk polymerization |
Dec. 5, 1995 |
| 5468842 |
Annealed linear high density polyethylene and preparation thereof |
Nov. 21, 1995 |
| 5468823 |
Semicrystalline manufactured articles made of syndiotactic poly-p-methylstyrene (s-PpMS) |
Nov. 21, 1995 |
| 5464922 |
Organopolysiloxane-grafted polybenzobisoxazoles and method for preparing same |
Nov. 7, 1995 |
| 5461141 |
Solid phase polymerization of nylon |
Oct. 24, 1995 |
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