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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 |
| 5459210 |
Processes for producing styrene copolymers |
Oct. 17, 1995 |
| 5459168 |
Process for separating low molecular weight compounds from an impure thermoplastic polymer or mixture |
Oct. 17, 1995 |
| 5434221 |
Low molecular weight isoolefin polymer |
Jul. 18, 1995 |
| 5434239 |
Continuous polyester process |
Jul. 18, 1995 |
| 5432250 |
Process for producing polycarbonate |
Jul. 11, 1995 |
| 5432259 |
Process for the preparation of fluorinated monomers |
Jul. 11, 1995 |
| 5432247 |
Non-leachable fire retardant comprising an alkaline condensation product of a fusible phenolic resin and a dialkyl-N,N-bis(hydroxyalkyl)aminoalkyl phosphonate |
Jul. 11, 1995 |
| 5432203 |
Process of recovering components from polyester resins |
Jul. 11, 1995 |
| 5432001 |
Concentrated prepolymer composition useful for forming polyimide articles |
Jul. 11, 1995 |
| 5422410 |
Method for increasing the molecular weight of thermoplastic polymers of monoalkenyl arenes |
Jun. 6, 1995 |
| 5420239 |
Method for inhibiting popcorn polymer formation by heat |
May. 30, 1995 |
| 5420238 |
Poly(silyleneethynylene phenyleneethynylenes), method for preparing same and hardened product thereof |
May. 30, 1995 |
| 5420209 |
Preparation of (meth) acrylic/glutarimide copolymers |
May. 30, 1995 |
| 5420166 |
Glycolysis of cured unsaturated polyesters for producing a recycle reactant |
May. 30, 1995 |
| 5418314 |
Process for producing polycarbonate |
May. 23, 1995 |
| 5412063 |
Solid state polymerization of polyesters with low diffusion resistance prepolymer granules |
May. 2, 1995 |
| 5408035 |
Solid state polymerization |
Apr. 18, 1995 |
| 5407984 |
Process for preparing macrocyclic polyester oligomers |
Apr. 18, 1995 |
| 5401827 |
Semiconductive copolymers for use in luminescent devices |
Mar. 28, 1995 |
| 5395858 |
Process for recycling polyester |
Mar. 7, 1995 |
| 5391710 |
Production of amine functional polymers having improved purity |
Feb. 21, 1995 |
| 5391694 |
Solid state polymerization of polyesters with low diffusion resistance prepolymer granules |
Feb. 21, 1995 |
| 5380822 |
Water assisted devolatilization |
Jan. 10, 1995 |
| 5378801 |
Continuous process for the preparation of resorable polyesters and the use thereof |
Jan. 3, 1995 |
| 5378802 |
Method for removing impurities from resist components and novolak resins |
Jan. 3, 1995 |
| 5376734 |
Process for the production of high molecular weight polyester resins |
Dec. 27, 1994 |
| 5374709 |
Production of granular poly(arylene sulfide) polymers containing reduced amounts of oligomers |
Dec. 20, 1994 |
| 5369148 |
Method for continuous agglomeration of an absorbent resin powder and apparatus therefor |
Nov. 29, 1994 |
| 5362807 |
Acrylic polymers |
Nov. 8, 1994 |
| 5357014 |
Styrenic resin molding and process for producing same |
Oct. 18, 1994 |
| 5350834 |
Treatment of polyarylene sulfide/sulfone polymers |
Sep. 27, 1994 |
| 5340509 |
Process for pelletizing ultra high melt flow crystalline polymers and products therefrom |
Aug. 23, 1994 |
| 5340917 |
Syndiotactic polypropylene, methods for producing amorphous syndiotactic polypropylene and applications thereof |
Aug. 23, 1994 |
| 5340896 |
Thermoset polymeric precursors for aluminum nitride |
Aug. 23, 1994 |
| 5338808 |
Process for the production of high molecular weight polyester resins |
Aug. 16, 1994 |
| 5334669 |
Process for the production of high molecular weight polyester resins |
Aug. 2, 1994 |
| 5330668 |
Organic ferromagnetic substance and process for producing same |
Jul. 19, 1994 |
| 5328981 |
Recovery of poly(arylene sulfide ketone) and poly(arylene sulfide diketone) resins |
Jul. 12, 1994 |
| 5328982 |
Depolymerization of substantially amorphous polyesters |
Jul. 12, 1994 |
| 5326791 |
Process for separation of hydrolyzable from non-hydrolyzable waste plastics for recovery of starting materials and other conversion processes, respectively |
Jul. 5, 1994 |
| 5324817 |
Process for improving biodegradability of PVC |
Jun. 28, 1994 |
| 5324816 |
Process for improving the properties of polymers |
Jun. 28, 1994 |
| 5314972 |
Acid wash of polyarylene sulfides |
May. 24, 1994 |
| 5312898 |
Process for depolymerization of polyacrylonitrile using hot water |
May. 17, 1994 |
| 5306777 |
Acrylic polymers |
Apr. 26, 1994 |
| 5302686 |
Hollow container and stretched film made of a copolyester |
Apr. 12, 1994 |
| 5300628 |
Selected chelate resins and their use to remove multivalent metal impurities from resist components |
Apr. 5, 1994 |
| 5298530 |
Process of recovering components from scrap polyester |
Mar. 29, 1994 |
| 5296510 |
Method for treating the surface of a thin porous film material of tetrafluoroethylene resin |
Mar. 22, 1994 |
| 5292862 |
Method for the pyrolysis of polymers |
Mar. 8, 1994 |
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