Blends of ionomer with propylene copolymer and articles
US4539263A · kind A · utility
28Cited by
20References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1984 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | May 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of (a) 80-93 weight percent of an ethylene/acid ionomer, and (b) 7-20 weight percent of a propylene/.alpha.-olefin copolymer are used to prepare peelable seals having nearly constant and predictable peel strength over an extended heat seal temperature range. Some of the seals so produced also show stress whitening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.