Masking films
US5707704A · kind A · utility
9Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A masking film comprising a light-shielding peelable layer provided on a transparent support wherein a binder component of the light-shielding peelable layer comprises 20 to 40% by weight of a rubberlike resin, 25 to 75% by weight of a vinyl chloride resin and 5 to 35% by weight of a thermoplastic resin containing OH groups compatible with the rubberlike resin and the vinyl chloride resin based on total resin components, which maintains anti-blocking property and appropriate adhesion after a long period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.