Uniaxially high-oriented polyethylene naphthalate film for liqui

Details Uniaxially high-oriented polyethylene naphthalate film for liqui Uniaxially high-oriented polyethylene naphthalate film for liqui

1986-12-01

1989-01-24

Heyman, John S.

350334, 350337, G02F 113, B32B 702, B32B 2900

Patent

active

047997729

ABSTRACT:
Disclosed herein is a uniaxially high-oriented polyethylene naphthalate film for liquid crystal panel substrate which has an in-plane birefringence of more than 0.110 after the film is stretched and subjected to heatset treatment.

REFERENCES:
patent: 4166876 (1979-09-01), Chiba et al.
patent: 4234654 (1980-11-01), Yatabe et al.
patent: 4561724 (1985-12-01), Otaki et al.

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