Multilayered polypropylene film
US4393115A · kind A · utility
45Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Jul 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Laminating a stretched thin propylene-ethylene block copolymer layer onto a surface of a laminate film hving a biaxially oriented polypropylene layer and a polypropylene layer uniaxially oriented only in the width direction. The resulting film has improved hand-cutting properties and the surface accepts wiring or drawing and is especially advantageous for use as adhesive tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.