Masking films

Details Masking films Masking films

1985-06-05

1987-01-13

Herbert, Thomas J.

Stock material or miscellaneous articles

Composite

Of polycarbonate

4284231, 4284237, 428480, 428483, 430 5, B32B 2708, B32B 2736

Patent

active

046364382

ABSTRACT:
Masking films comprise a transparent base, preferably a polyester or a polycarbonate, directly carrying a masking film in the form of a dyed transparent plastics material based upon a vinyl chloride-vinyl acetate copolymer coating, which contains an aromatic polyester-based polyurethane. The amount of vinyl acetate and polyurethane in the coating preferably comprises 30% to 65% w/w of its total polymer content.

REFERENCES:
patent: 4022706 (1977-05-01), Davis
patent: 4289825 (1981-09-01), Kolycheck et al.
patent: 4337296 (1982-06-01), Varadhachary
patent: 4347300 (1982-08-01), Shimazu et al.
patent: 4368237 (1983-01-01), Yamada et al.

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