Peelable lidstock based on polybutylene block copolymer blends
US5106917A · kind A · utility
15Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Feb 28, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A blend of butene-1 homopolymer or copolymer, styrenic olefinic block copolymer and optionally polypropylene or use in an easy-open, peelable lid structure for rigid containers, wherein the general range for composition of the blend is 5-50% by weight of butene-1 homopolymer or copolymer, 50-95% by weight of the block copolymer, and 0 to 30 percent by weight polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.