Molding composition based on vinyl chloride polymers, and proces

Details Molding composition based on vinyl chloride polymers, and proces Molding composition based on vinyl chloride polymers, and proces

1984-10-04

1985-11-05

Lieberman, Allan M.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

By calendering

427 7, 524 35, B29D 714, C08L 102, C08L 2706

Patent

active

045512949

ABSTRACT:
The novel molding compositions with vinyl chloride polymer as the main constituent contain, in a specific quantity in each case, certain impact strength modifiers, polymethyl methacrylate and a special cellulose, namely powdered pure cellulose having a mean degree of polymerization of 300 to 1,000 and a maximum particle diameter of 0.09 mm. These molding compositions can readily be calendered. The films are particularly suitable for the production of forgery-proof valuable documents which can be personalized by means of a laser, for example credit cards.

REFERENCES:
patent: 3679448 (1972-07-01), Tramposch
patent: 3679449 (1972-07-01), Nagot et al.
patent: 4405730 (1983-09-01), Cohen

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