Polyester film for laminated metal sheet drawing and processing

Details Polyester film for laminated metal sheet drawing and processing Polyester film for laminated metal sheet drawing and processing

1991-09-06

1994-12-13

Le, H. Thi

Stock material or miscellaneous articles

Structurally defined web or sheet

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

4283044, 428323, 428331, 428458, 428480, B32B 300

Patent

active

053728670

ABSTRACT:
A polyester film for metal sheet lamination processing which comprises a co-polyester containing a lubricant having an average particle diameter of 2.5 .mu.m or less and the co-polyester having a melting point of 210.degree. to 245.degree. C.; and wherein the refractive index in the direction of film thickness is 1.505 to 1.550, the refractive index in the direction of the film plane is 1.61 to 1.66 about all directions, subpeak by DSC is 150.degree. to 205.degree. C., and optionally, protrusions on the film surface satisfy the formula

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patent: 5071690 (1991-12-01), Fukuda et al.
patent: 5094924 (1992-03-01), Matsui et al.
patent: 5112695 (1992-05-01), Watanabe et al.

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