Adhesives for making multilayer films comprising liquid crystall

Details Adhesives for making multilayer films comprising liquid crystall Adhesives for making multilayer films comprising liquid crystall

1997-10-20

2000-01-11

Michl, Paul R.

Stock material or miscellaneous articles

Composite

B32B 904

Patent

active

060133732

ABSTRACT:
Multilayer films that include a thermotropic liquid crystalline polymer film layer and a polypropyene film layer are bound together using hot melt adhesives which may be either (1) a blend of poly(.alpha.-olefins), comprised of isotactic polypropylene, a polymer of a second lower poly(.alpha.-olefin), and a small amount of a higher poly(.alpha.-olefin), or (2) a blend of poly(propylene-graft-maleic anhydride) and a dimer acid based polyamide. These hot melt adhesives also act as compatiblizers for blends of polypropylene and thermotropic liquid crystalline polymers.

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Database WPI Section Ch, Week 9047, Derwent Publications Ltd., London, GB; Class A23, AN 90-351957, XP002090090 and JP 02 253949 A (Daicel Chem. Ind. Ltd.), 12 Oct. 1990.

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