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Class Information
Number: 528/482
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 > Contacting with ion exchange material or solid sorbent
Description: Processes wherein a solid sorbent mass is used to retain on its surface a constituent of a mixture, or wherein an ion-exchange material is used to contact the polymer or polymer-containing material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4131573 |
Process for making lignin gels in bead form |
Dec. 26, 1978 |
| 4118347 |
Filler for liquid chromatography |
Oct. 3, 1978 |
| 4098990 |
Process for the purification of low pressure polymerized polyolefin powder using recycled, anion-exchange treated water |
Jul. 4, 1978 |
| 4070313 |
Non punking phenolic foam |
Jan. 24, 1978 |
| 4067854 |
Adsorption process |
Jan. 10, 1978 |
| 4061780 |
Cosmetic oil containing isobutylene |
Dec. 6, 1977 |
| 4033909 |
Stable phenolic resoles |
Jul. 5, 1977 |
| 4016349 |
Process for removing vanadium residues from polymer solutions |
Apr. 5, 1977 |
| 3944513 |
Purification of polymer dispersions with adsorbent carbon particles |
Mar. 16, 1976 |
| 3939118 |
Process for removing contaminants from polycarbonate solutions |
Feb. 17, 1976 |
| 3937686 |
Process of preparing high molecular weight polyamide with recovery of diamine and return of same to polymerization system |
Feb. 10, 1976 |
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