Adhesives for making multilayer films comprising liquid crystalline polymers and poly(ethylene terephthalate) or polycarbonate
US6042902A · kind A · utility
23Cited by
9References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 20, 1997 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Oct 20, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Multilayer films that include a thermotropic liquid crystalline polymer film layer and a poly(ethylene terephthalate) or polycarbonate film layer are bound together using a hot melt adhesive, which may be either (1) a blend of poly(.alpha.-olefins) that includes isotactic polypropylene, a polymer of a second lower poly(.alpha.-olefin), and a small amount of a higher poly(.alpha.-olefin); or (2) a polyamide-based hot melt adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.