Polymeric film

Details Polymeric film Polymeric film

1992-05-15

1994-07-26

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428220, 428331, 428483, 428480, 428325, 428910, B32B 2708, B32B 516

Patent

active

053326172

ABSTRACT:
A polymeric film, particularly a polyester film, comprising an essentially unfilled primary layer substrate and a filled secondary layer exhibiting an improved combination of transparency and handling properties. The filler is glass particles having a volume distributed median particle diameter of 1.0 to 7.0 .mu.m, which are present in the secondary layer at a concentration of 100 to 1000 ppm. The film is suitable for use in a vide range of applications, particularly for information storage and display.

REFERENCES:
patent: 4302506 (1981-11-01), Heberger
patent: 4590125 (1986-05-01), Balloni et al.
patent: 4622359 (1986-11-01), Liu
patent: 4956232 (1990-09-01), Balloni et al.

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