Polyester laminated film

Details Polyester laminated film Polyester laminated film

1981-11-16

1983-08-16

Herbert, Jr., Thomas

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428323, 428330, 428331, 428332, 428336, 428337, 428339, 428480, 428483, 528275, B32B 702, B32B 516

Patent

active

043991793

ABSTRACT:
A polyester laminated film which comprises a transparent layer and delustered layer(s) laminated at least on one side face of the transparent layer is provided. The transparent layer is formed by a biaxially stretched polyester film mainly composed of polyethylene terephthalate, while the delustered layer is made of an at least uniaxially stretched polyester film which is mainly composed of a polyethylene terephthalate copolymer containing, as a copolymer composition, 1 to 20 mole % of ##STR1## wherein n is an integer from 2 to 140, and x represents ##STR2## and which also contains inert inorganic particles of 0.3 to 20 microns at 3 to 40% by weight.
The film of the present invention as described above is roughened on the surface, and is superior in the writability and transcribability by pencils, ink, indian ink, etc., with an excellent transparency, and therefore, very useful for tracing films and the like.

REFERENCES:
patent: 4067855 (1978-01-01), Miwa et al.
patent: 4274025 (1981-06-01), Nerurkar et al.
patent: 4291084 (1981-09-01), Segal

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