Calendered rigid vinyl polymer compositions

Details Calendered rigid vinyl polymer compositions Calendered rigid vinyl polymer compositions

1994-07-01

1995-05-09

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524180, 524182, 524310, 524314, 524487, 524490, 524491, 525239, 525240, 525384, 525387, 525388, C08K 557

Patent

active

054140358

ABSTRACT:
The present invention provides an external lubricant composition for calendered vinyl polymer. The external lubricant provides rigid vinyl polymer compositions having improved plate out resistance, clarity, release, and stability. The external lubricant comprises an effective amount for lubricating vinyl polymer of polyethylene having a Brookfield viscosity at a temperature of 150.degree. C. of greater than about 85,000 centipoises and an acid number as determined by standardized titration of KOH of between about 5 and about 9.
Sheets of the calendered vinyl polymer are used for blister packs and credit cards.

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