Copolymers of vinyl acetate and acrylates
US4948857A · kind A · utility
16Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1988 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Apr 22, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A vinyl acetate copolymer comprising the following general structure ##STR1## where R is hydrogen or methyl; PA1 R.sup.1 is a C.sub.6 -C.sub.18 hydrocarbyl group not containing an olefinic functionality; PA1 y is 92 to 99.5 mole %; and PA1 z is 0.5 to 8 mole %. The vinyl acetate copolymer is hydrolyzed to provide a vinyl alcohol copolymer that can be thermoplastically processed into shaped articles possessing good oxygen gas barrier properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.