Heat sealable coextruded LCP film

Details Heat sealable coextruded LCP film Heat sealable coextruded LCP film

1991-11-27

1993-09-28

Ryan, Patrick J.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

428210, B32B 900

Patent

active

052485307

ABSTRACT:
A coextruded liquid crystal polymer ("LCP") film or sheet wherein a higher melting LCP layer is laminated to a lower melting LCP layer. These LCP components are coextruded from the same die. This film or sheet may then be laminated onto other materials at a temperature between the melting point of the lower-melting LCP and the higher-melting LCP, so that the latter LCP may maintain its shape, orientation, and mechanical characteristics while the lower-melting LCP component flows and bonds with the other material. When the higher-melting LCP layer is sandwiched between two lower-melting layers, the film or sheet may be laminated on two sides thereof.

REFERENCES:
patent: 4384016 (1983-05-01), Ide et al.
patent: 4738880 (1988-04-01), Asada et al.
patent: 4985285 (1991-01-01), Ichikawa et al.

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