Coextruded film of polypropylene, polypropylene blend, and nylon
US4361628A · kind A · utility
50Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1981 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | Feb 20, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A novel coextruded plastic film has as an adhesive layer between polypropylene and nylon layers, a blend of polypropylene and a graft copolymer of maleic anhydride onto a polypropylene backbone, the graft copolymer having been produced in a reaction carried out at a temperature of from about 80.degree. C. up to about 10.degree. C. below the melting point of the polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.