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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 |
| 4156064 |
Process for the manufacture of polyurethane adhesives |
May. 22, 1979 |
| 4155889 |
Process for substantially increasing the flexibility of a polyester |
May. 22, 1979 |
| 4154920 |
Methods for producing improved stable polyethylene terephthalate |
May. 15, 1979 |
| 4150214 |
Method of preparing catalyst-free high molecular weight polyester |
Apr. 17, 1979 |
| 4142040 |
Processing polyesters to minimize acetaldehyde formation |
Feb. 27, 1979 |
| 4138544 |
Preparation of polycondensate by one-step melt condensation in a vacuum |
Feb. 6, 1979 |
| 4112214 |
Method of preparing powder particles by control of the particle shape |
Sep. 5, 1978 |
| 4107421 |
Removal of vinyl halide from polyvinyl halide |
Aug. 15, 1978 |
| 4086411 |
Method of removing vinyl chloride monomer from a vinyl chloride polymer |
Apr. 25, 1978 |
| 4069291 |
Densification of particulate porous fluorinated resins |
Jan. 17, 1978 |
| 4068051 |
Process for preparing conjugated diene butyl |
Jan. 10, 1978 |
| 4064093 |
Process for preparing grafted rubber latices free of coagulum |
Dec. 20, 1977 |
| 4055547 |
Removing odorous formaldehyde from stabilized shaped polyoxymethylenes |
Oct. 25, 1977 |
| 4053446 |
Process for preparing high tear-strength polydiene polyurethane |
Oct. 11, 1977 |
| 4028484 |
Alfin polymerized rubber |
Jun. 7, 1977 |
| 4006068 |
Polymercaptoesters of polyglycidols |
Feb. 1, 1977 |
| 4002430 |
Extraction tube for polyamides |
Jan. 11, 1977 |
| 3987015 |
Process for the production of particulate polymeric material having an unusually high surface area |
Oct. 19, 1976 |
| 3979370 |
Method for simultaneous addition of non-compatible substances to a mixing zone |
Sep. 7, 1976 |
| 3972842 |
Reclamation of fluoropolymers |
Aug. 3, 1976 |
| 3931134 |
Process and apparatus for the separating out of coarse and/or heavy particles from a variable particle size and/or variable particle weight mixture of granular solids maintained in a vortex st |
Jan. 6, 1976 |
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