Preventing discoloration in hydrolyzed ethylene-vinyl acetate copolymers
US4003810A · kind A · utility
7Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1976 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | May 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the hydrolysis of a solid interpolymer of an ethylenically unsaturated hydrocarbon and a vinyl ester of a 2-6 carbon atom aliphatic carboxylic acid to products having a low yellowness index involves contacting of the solid interpolymer with a substantially anhydrous hydrolyzing agent and subjecting at least one of said interpolymer and said hydrolyzing agent to radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.