Polyethylene naphthalate film

Details Polyethylene naphthalate film Polyethylene naphthalate film

1986-11-13

1988-03-22

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

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

427128, 428480, 428694, 428900, 428910, G11B 5704

Patent

active

047327995

ABSTRACT:
Disclosed herein is a biaxially oriented polyethylene naphthalate film having a center line average roughness [Ra(.mu.m)] and a film thickness [T(.mu.m)] which satisfy the following formula: ##EQU1## produced by the electrostatic cooling method from polymethylene naphthalate having a resistivity of 1.times.10.sup.7 to 5.times.10.sup.8 .OMEGA..cm as measured in the molten state.

REFERENCES:
patent: 3683060 (1972-08-01), Tanabe et al.
patent: 4198458 (1980-04-01), Mitsuishi et al.
patent: 4571361 (1986-02-01), Kawaguchi et al.
patent: 4619855 (1986-10-01), Okita et al.
patent: 4619869 (1986-10-01), Kiriyama et al.

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