Stretched film
US4483965A · kind A · utility
13Cited by
4References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 12, 1983 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Apr 12, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2323/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A stretched film having excellent printing and writing properties and mechanical strength is produced by stretching a film molded from a styrene-grafted polyolefin resin in at least one direction. The styrene-grafted polyolefin resin is produced by heating an aqueous suspension containing 100 parts by weight of polyolefin resin particles, from 10 to 400 parts by weight of a styrene monomer, and a free radical polymerization initiator in an amount of from 0.01 to 1 part by weight per 100 parts by weight of the styrene monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.