Adhesive composite polyester films
US4868051A · kind A · utility
10Cited by
4References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Oct 6, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Oriented composite polyester films, to which a wide variety of final application topcoatings are improvedly adherent, e.g., matte, photosensitive and magnetic topcoatings, comprise an oriented base film substrate (A) of a crystalline or semicrystalline polyester, the base film substrate (A) bearing an adhesion primer coating (B) on at least one of the face surfaces thereof, and the adhesion primer coating (B) comprising: PA0 (a) a crystalline, semicrystalline or crystallizable polyester; PA0 (b) a water-sensitive copolyster; and PA0 (c) an organic solvent-sensitive polyester or copolyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.