Surface protective film
US8592046B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2009 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Apr 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31909
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A surface protective film includes: a polyolefin base material layer; and an adhesion layer, in which the adhesion layer includes: a vinyl-polyisoprene-block-containing styrene elastomer; a polyolefin; and a tackifier, and a hardness (Martens hardness) of the adhesion layer is 1.0 N/mm2 or more and 2.5 N/mm2 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.