Delustered thermally shrinkable film

Details Delustered thermally shrinkable film Delustered thermally shrinkable film

1992-02-18

1993-05-11

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525198, C08L 2702, C08L 2704, C08L 2706

Patent

active

052101410

ABSTRACT:
Disclosed in a delustered, thermally shrinkable polyvinyl chloride film which is obtained by extruding and orienting a polyvinyl chloride resin composition in which the polyvinyl chloride is a mixture of (A) a partially crosslinked polyvinyl chloride resin and (B) a non-crosslinked polyvinyl chloride resin in an (A)/(B) weight ratio of from 15/85 to 80/20; and in which the average polymerization degree of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (B) is greater than that of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (A).

REFERENCES:
patent: 3723576 (1973-03-01), Maclaine et al.
patent: 4267084 (1981-05-01), Mizutani et al.
patent: 4567217 (1986-01-01), Yamazaki et al.
patent: 4636547 (1987-01-01), Engelmann et al.
patent: 4775699 (1988-10-01), Cozens

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