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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 |
| 4923961 |
Process for deodorizing isobutylene polymer |
May. 8, 1990 |
| 4923971 |
Treatment of arylene sulfide polymer fiber |
May. 8, 1990 |
| 4921936 |
Process for destruction of toxic organic chemicals and the resultant inert polymer by-product |
May. 1, 1990 |
| 4920202 |
Method for production of hydrophilic polymer from hydrated gel polymer |
Apr. 24, 1990 |
| 4918134 |
Process for partially curing polyarylene sulfides |
Apr. 17, 1990 |
| 4917834 |
Method for forming homogeneous blends of particulate materials |
Apr. 17, 1990 |
| 4915885 |
Process of making a blend of PET and PBT |
Apr. 10, 1990 |
| 4908415 |
Method of converting fluorine-containing polymer into lower molecular weight polymer |
Mar. 13, 1990 |
| 4902762 |
Process for preparing carbon fibers of high strength |
Feb. 20, 1990 |
| 4898779 |
Powders of tetrafluoroethylene copolymer and process for preparing the same |
Feb. 6, 1990 |
| 4892929 |
Melt stabilization of poly arylene sulfide ketone |
Jan. 9, 1990 |
| 4892927 |
.alpha.-amino-.epsilon.-caprolactam-modified polyamide of dicarboxylic acids/diamines |
Jan. 9, 1990 |
| 4891420 |
Continuous process for the hydrolytic production of polycaprolactam by tempering unextracted granular polymer material with moist inert gas |
Jan. 2, 1990 |
| 4891421 |
Processes for producing polycarbonate polyols |
Jan. 2, 1990 |
| 4882418 |
Washing arylene sulfide polymers with water plus a reducing agent |
Nov. 21, 1989 |
| 4879351 |
Isomerized terpene tackifier resins |
Nov. 7, 1989 |
| 4877862 |
Solid state polymerization process for increasing the molecular weight of colpoly(arylene sulfide) |
Oct. 31, 1989 |
| 4874839 |
Stabilization of poly(arylene ether ketones) |
Oct. 17, 1989 |
| 4874842 |
Process for curing thermosetting resins by means of a liquid heat transmitter |
Oct. 17, 1989 |
| 4870156 |
Removal of catalyst residues from olefin/carbon monoxide polymer with dithiocarbamate |
Sep. 26, 1989 |
| 4868284 |
Process for producing stretched molded articles of conjugated polymers and highly conductive compositions of said polymers |
Sep. 19, 1989 |
| 4857631 |
Method for producing de-watered grafted rubber concentrate |
Aug. 15, 1989 |
| 4857247 |
Method for drawing thermoplastic tubing |
Aug. 15, 1989 |
| 4849498 |
4.6/4.I copolyamide and a process for the preparation thereof |
Jul. 18, 1989 |
| 4845193 |
Process for producing polycarbonate resin molding material having low particle content with vented extruder |
Jul. 4, 1989 |
| 4835243 |
Thermotropic aromatic polymers with high elongation at break, processes for their preparation and their use for the production of moulded articles, filaments, fibres and films |
May. 30, 1989 |
| 4831115 |
Method for removing volatile impurities from polyphenylene ethers |
May. 16, 1989 |
| 4826931 |
Tablet for resin-molding semiconductor devices |
May. 2, 1989 |
| 4826638 |
Process of using hardened elastomer filler for elastomer material |
May. 2, 1989 |
| 4814530 |
Sintered polybenzimidazole article |
Mar. 21, 1989 |
| 4810775 |
Process for purifying resorbable polyesters |
Mar. 7, 1989 |
| 4808262 |
Method for devolatilizing polymer solutions |
Feb. 28, 1989 |
| 4801650 |
Process for producing 4-methylpentene-1 copolymer and resin composition containing the same |
Jan. 31, 1989 |
| 4798742 |
Polyaromatics |
Jan. 17, 1989 |
| 4794146 |
Oil additives containing a thiocarbamyl moiety |
Dec. 27, 1988 |
| 4791028 |
Polymer coatings |
Dec. 13, 1988 |
| 4788017 |
Process for the improvement of the homogeneity of highly reactive of highly reactive polycondensates |
Nov. 29, 1988 |
| 4788270 |
Process for preparing a urethane coating comprising freezing a premix of an isocyanate and a polyol in a solvent |
Nov. 29, 1988 |
| 4764588 |
Insoluble vinyl lactam clarifiers |
Aug. 16, 1988 |
| 4760129 |
Process for preparing highly viscous polyhexamethyleneadipamide |
Jul. 26, 1988 |
| 4757131 |
Production of high-molecular polytetramethylene adipamide pellet |
Jul. 12, 1988 |
| RE32677 |
Polyamines, a process for the production of polyamines and their use in the production of polyurethanes |
May. 24, 1988 |
| 4742122 |
Melt-processible tetrafluoroethylene/perfluoroolefin copolymers and processes for preparing them |
May. 3, 1988 |
| 4740574 |
Aluminum nitride structures |
Apr. 26, 1988 |
| 4734097 |
Medical material of polyvinyl alcohol and process of making |
Mar. 29, 1988 |
| 4728701 |
Process for the polymerization of acrylates |
Mar. 1, 1988 |
| 4714756 |
Process for preparing melt processible tetrafluoroethylene copolymer granules |
Dec. 22, 1987 |
| 4710563 |
Process for the recovery of amorphous devaporized polyalphaolefin |
Dec. 1, 1987 |
| 4709009 |
Method for the production of reformed p-vinylphenol polymers which are lightened in color |
Nov. 24, 1987 |
| 4699976 |
Continuous process for the treatment of polymer composition to remove unreacted monomer and solvent |
Oct. 13, 1987 |
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