Composition based on statistical propylene copolymers, process for their manufacture and multilayer heat-sealable sheets containing them
US5948547A · kind A · utility
15Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1996 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Dec 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions based on propylene polymers (compositions (C)) comprising: PA1 from 68 to 80% by weight of a statistical propylene copolymer (copolymer (A)) which contains from 12 to 20% by weight of units derived from 1-butene and from 0 to 2% by weight of units derived from ethylene, and PA1 from 20 to 32% by weight of a statistical propylene copolymer (copolymer (B)) which contains from 0 to 15% by weight of units derived from 1-butene and from 1 to 8% by weight of units derived from ethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.