Blends of ionomer with propylene copolymer
US4550141A · kind A · utility
30Cited by
21References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1983 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Aug 22, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/06
- WIPO fieldSurface technology, coating
- 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.