Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxy

Details Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxy Biaxially oriented film of polyethylene-2,6-naphthalenedicarboxy

1994-12-19

1997-05-20

Hamilton, III, Thomas

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428143, 528298, B32B 326, B32B 2736, C08G 63189

Patent

active

056310633

ABSTRACT:
A biaxially oriented film of a polyethylene-2,6-naphthalenedicarboxylate, which (A) has a Young's modulus of at least 800 kg/mm.sup.2 in the longitudinal direction and a Young's modulus of at least 500 kg/mm.sup.2 in the transverse direction, the Young's modulus in the longitudinal direction being greater than the Young's modulus in the transverse direction, (B) satisfies the following relationships between an elongation S.sub.M (%) in the longitudinal direction per a load of 1 kg/mm.sup.2 at 120.degree. C. and the Young's modulus Y.sub.M (kg/mm.sup.2) in the longitudinal direction,

REFERENCES:
patent: 4720412 (1988-01-01), Katoh et al.
patent: 4804736 (1989-02-01), Utsumi
patent: 5312893 (1994-05-01), Hamano et al.
patent: 5316823 (1994-05-01), Etchu et al.
patent: 5380577 (1995-01-01), Hamano et al.

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