EVOH/polypropylene gas-impermeable polymer alloys
US5393832A · kind A · utility
16Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1992 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Nov 19, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer alloys that can facilely be shaped into gas barrier, crack-resistant packaging materials, e.g., by thermoforming, include an ethylene-vinyl alcohol copolymer matrix, a polypropylene disperse phase and a phase-compatibilizing amount of an .alpha.-monoolefin graft copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.