Thin LCP film process

Details Thin LCP film process Thin LCP film process

1995-03-28

1998-08-04

Kiliman, Leszek

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

428480, 428523, 428910, 264171, 2641771, 26417714, 26417717, 264563, 264565, B23B 900

Patent

active

057890420

ABSTRACT:
A process for producing LCP films that have improved tear resistance, improved balance of physical properties, and relatively wrinkle-free surfaces. An annular co-extrusion die is used to line the LCP with one or more surface layers of a nonadherent polymer before the LCP becomes shear oriented. The multi-layer tube formed by the co-extrusion is sealed, stretched and cooled by passing it over a sizing mandrel. The tube is slit open into a flat configuration.

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Database WPI, Sec. Ch, Week 9244, Derwent, Publications Ltd., London,G.B; Class A23, AN 92-360050 XP002006504 & JP,A,04 259 537 (Mitsubishi Petrochemical Co., Ltd. Sep. 1992.
Database WPI, Sec. Ch, Week 8812, Derwent Publications, Ltd., London,G.D.; Class A32, AN 88-080203 XP002006505 & JP,A,63 031 729 (Sumitomo Bakelite KK)), Feb. 1988.
Patent Abstracts of Japan, vol. 012, No. 371 (M-748), 5 Oct. 1988 & JP,A,63 122515 Sekisui Plastics Co. Ltd.), 26 May 1988.
Patent Abstracts of Japan, vol. 012, No. 296 (M-731), 12 Aug. 1988 & JP,A,63 074622 Asahi Chem Ind Co. Ltd.), 5 Apr. 1988.

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