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Class Information
Number: 528/480
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
Description: Processes under Class 520, ... wherein a solid polymer which has been derived from at least one ethylenic monomer, or a material which is in contact with the polymer, is treated.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 528/488 |
Contacting with alkali (li, na, k, rb, cs, fr) or alkaline earth (be, mg, ca, sr, ba) metal or compound thereof |
340 |
| 528/485 |
Contacting with aluminum or heavy metal material |
195 |
| 528/486 |
Contacting with carboxylic acid, salt, or anhydride thereof |
478 |
| 528/483 |
Contacting with exteriorly produced specified gaseous agent other than drying, blanket, or carrier gas |
312 |
| 528/482 |
Contacting with ion exchange material or solid sorbent |
211 |
| 528/491 |
Contacting with organic material |
596 |
| 528/490 |
Contacting with specified element or with specified inorganic compound other than water, elemental nitrogen, air and the inert gases (group viii a) |
367 |
| 528/487 |
Contacting with sulfur or phosphorus-containing material |
439 |
| 528/499 |
Contacting with water |
600 |
| 528/502R |
Physical treatment |
251 |
| 528/484 |
Preventing or removing reactor or processing equipment buildup |
36 |
| 528/503 |
Temperature maintaining, heating or cooling |
944 |
| 528/481 |
Treating at o deg c (32 deg f) or below, or at 200 deg c (392 deg f) or above |
608 |
| 528/501 |
With distilling or pressured reduction step to remove material, e.g., flashing, autorefrigeration, etc. |
517 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4584366 |
Process for the crystallizing, drying and aftercondensation of polycondensates |
Apr. 22, 1986 |
| 4581443 |
Production of improved pellets from melt-processable polymer which is capable of forming and anisotropic melt |
Apr. 8, 1986 |
| 4575531 |
Partially hydrolyzed ethylene-vinyl acetate (EVA) elastomers vulcanizable with sulfur |
Mar. 11, 1986 |
| 4554343 |
Process for the production of high molecular weight polyester |
Nov. 19, 1985 |
| 4546169 |
Process for preparation of polyester polyols utilizing polyalkylene terephthalate |
Oct. 8, 1985 |
| 4540773 |
Method of producing an improved polyacetal polymer |
Sep. 10, 1985 |
| 4540720 |
Polyamines, a process for the production of polyamines and their use in the production of polyurethanes |
Sep. 10, 1985 |
| 4532317 |
Aromatic polyamines containing primary aromatic amino groups, urethane groups and polyester groups, and a process for the production thereof |
Jul. 30, 1985 |
| 4511686 |
Cyanoacrylate adhesive composition containing tannins |
Apr. 16, 1985 |
| 4506037 |
Production of resin foam by aqueous medium |
Mar. 19, 1985 |
| 4504652 |
Polyester plasticizer |
Mar. 12, 1985 |
| 4504653 |
Process for producing polyolefin resin particles |
Mar. 12, 1985 |
| 4499261 |
Process for the continuous production of polybutylene terephthalate of high molecular weight |
Feb. 12, 1985 |
| 4496697 |
Automatic process control system for curing polymeric material |
Jan. 29, 1985 |
| 4482704 |
Method and apparatus for multiple recycle polymer dilution |
Nov. 13, 1984 |
| 4482688 |
Light-colored hydrocarbon and terpene resins decolorized by iodine compounds |
Nov. 13, 1984 |
| 4458064 |
Process and apparatus for continual melt hydrolysis of acetal copolymers |
Jul. 3, 1984 |
| 4447597 |
Method for adjusting arylene sulfide polymer cure rates |
May. 8, 1984 |
| 4447599 |
Thermotropic liquid crystal shaped article |
May. 8, 1984 |
| 4446303 |
Process for preparing high molecular weight polyesters |
May. 1, 1984 |
| 4440925 |
Process for making fine particulate non-agglomerating chloropolyethylene |
Apr. 3, 1984 |
| 4434276 |
Process for the condensation of poly(alkylene terephthalates) |
Feb. 28, 1984 |
| 4431794 |
Continuous preparation of oxymethylene polymers |
Feb. 14, 1984 |
| 4420602 |
Melt-polymerization process for the preparation of thermoplastic polyamides and polyesteramides |
Dec. 13, 1983 |
| 4420603 |
Continuous, solvent-free process for preparing thermoplastic polyamides and polyesteramides |
Dec. 13, 1983 |
| 4401804 |
Deactivation of polyester catalyst residues |
Aug. 30, 1983 |
| 4387213 |
Process for the condensation of linear polyalkylene terephthalates |
Jun. 7, 1983 |
| 4379912 |
Method of making polyester prepolymers |
Apr. 12, 1983 |
| 4366305 |
Process for heat stabilizing oxymethylene copolymers |
Dec. 28, 1982 |
| 4365057 |
Method for drying polyolefins |
Dec. 21, 1982 |
| 4360661 |
Process for the regeneration and further processing of inactive, linear polyalkylene terephthalates |
Nov. 23, 1982 |
| 4360644 |
Preparation of electrically conductive polyaromatics |
Nov. 23, 1982 |
| 4352927 |
Method of improving processability of rigid polymers |
Oct. 5, 1982 |
| 4340722 |
Method of preparing homo and co-polymers of vinyl chloride adapted to give plastisols from a latex containing two populations of particles |
Jul. 20, 1982 |
| 4273919 |
Method for producing polylaurolactam powder compositions for the coating of metals at high temperatures and their use in the manufacture of pigmented powders by the dry-blend process |
Jun. 16, 1981 |
| 4271287 |
Process for the continuous polymerization of polyethylene terephthalate in the solid phase |
Jun. 2, 1981 |
| 4260721 |
Modified fluidized bed |
Apr. 7, 1981 |
| 4254253 |
Preparation of high molecular weight polyester |
Mar. 3, 1981 |
| 4245073 |
Process for the polymerization of vinyl chloride in aqueous suspension |
Jan. 13, 1981 |
| 4238593 |
Method for production of a high molecular weight polyester prepared from a prepolymer polyester having an optimal carboxyl content |
Dec. 9, 1980 |
| 4226976 |
Process for the removal of vinyl chloride from polyvinyl chloride latexes and slurries with hydrocarbon compounds |
Oct. 7, 1980 |
| 4226973 |
Process for upgrading prepolymer particles |
Oct. 7, 1980 |
| 4225703 |
Process for the production of oxymethylene copolymer molding compositions with a low content of residual formaldehyde |
Sep. 30, 1980 |
| 4225702 |
Method of preparing polyamide acid type intermediates for processing of semiconductors |
Sep. 30, 1980 |
| 4225549 |
Method to increase the heat deflection temperature of amorphous polyethylene terephthalate |
Sep. 30, 1980 |
| 4220754 |
Process for the purification of polyvinyl chloride with oxidizing agents |
Sep. 2, 1980 |
| 4200602 |
Method for producing filaments of high tenacity |
Apr. 29, 1980 |
| 4184029 |
Process for the production of high-durometer polymers of vinyl chloride with pH control |
Jan. 15, 1980 |
| 4182850 |
Non-solvent precipitation of polymer composition |
Jan. 8, 1980 |
| 4166899 |
Isolation of aromatic polyester copolymers |
Sep. 4, 1979 |
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