Film for heat sealing and process of heat sealing
US4302554A · kind A · utility
30Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1978 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Sep 28, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A film and a laminate using the film as a substrate which both are suitable for heat sealing and a process for heat sealing the film and the laminate are disclosed. The film comprises a blend of (I) at least one member selected from the group consisting of (A) elastomeric block copolymers of vinyl-aromatic compounds with conjugated diene compounds, (B) resinous block copolymers of vinyl-aromatic compounds with conjugated diene compounds and (C) vinyl-aromatic resins and/or modified vinyl-aromatic resins, and (II) an olefinic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.