Electrically conductive film

Details Electrically conductive film Electrically conductive film

1993-04-28

1995-01-31

Nakarani, D. S.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

252510, 252511, 428143, 428323, 428408, 4284231, 4284237, 428480, 428910, 524495, 524496, B32B 2740

Patent

active

053857682

ABSTRACT:
There is disclosed an electrically conductive polyester film comprising a polyester base film and a coating layer which is formed by applying a coating liquid to said base film, thereafter stretching the coated film and heat-setting the film, wherein said coating liquid is an aqueous composition and contains carbon black in an amount of 30-60% by weight of the solid content and produces a layer when dried at 80.degree. C. for 10 minutes, the rupture elongation of said layer being at least 300% and is heat-settable at 10.degree.-200.degree. C., and said coating layer having a surface resistivity of 10.sup.4 -10.sup.10 .OMEGA./.quadrature. and a surface roughness of not more than 0.05 .mu.m. This polyester film exhibits good electric resistivity and light-shielding proper.

REFERENCES:
patent: 3639245 (1972-02-01), Nelson
patent: 4250398 (1981-02-01), Ellis et al.
patent: 4476189 (1984-10-01), Posey et al.
patent: 4585687 (1986-04-01), Posey et al.
patent: 4612273 (1986-09-01), Westdale et al.
patent: 4740426 (1988-04-01), Tremper, III
patent: 5188891 (1993-02-01), Takeda et al.

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