Polyolefinic compositions containing e/va copolymer
US4126649A · kind A · utility
7Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Jun 16, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyolefin compositions useful for making films having improved tensiometric properties and strength. The compositions comprise from 92 to 99% by weight of (1) a polyolefin having a melt index of 0.5 to 5 that is either isotactic poly-1-butene or a butene-ethylene copolymer containing less than 2% of ethylene units, and (2) from 1 to 8% of an ethylene-vinyl acetate copolymer having a vinyl acetate content of from 5 to 35% by weight and a melt index of from 0.5 to 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.