Polymers and copolymers of hydroxyalkyl methacrylate sulfo esters and the method for their manufacturing
US3959236A · kind A · utility
8Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Aug 8, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/923
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to chemically reactive polymers and copolymers of hydroxyalkyl methacrylate sulfo esters with monomer units of the formula ##EQU1## where n is an integer equal to 1 or 2 and R is C.sub.6 H.sub.5 --, p--CH.sub.3 C.sub.6 H.sub.4 --, or CH.sub.3 -- and to the method of manufacturing the technically useful articles from these polymers, namely crosslinked beads, membranes, blocks, etc., by free-radical polymerization or copolymerization in bulk, solution or in two-phase aqueous dispersion system under conditions whereby the hydrolysis of the sulfo ester is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.