Composition for preventing plate out in extrusion equipment

Details Composition for preventing plate out in extrusion equipment Composition for preventing plate out in extrusion equipment

1981-02-04

1983-07-19

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

264176R, 524444, 524445, C08K 334

Patent

active

043945015

ABSTRACT:
A composition of polyvinylchloride containing the usual additives and a plate out preventing, chemically or physically acting drying agent. The drying agent is preferably an expanded and finely ground aluminiumsilicate, having a high oil absorption and water absorption and preferably low amounts of earth alkaline metals. The plate out preventing drying agent is incorporated in a normal additive composition in order to avoid handling of voluminous masses of drying agent. This incorporation is executed by mixing with a mixture of additives or during the chemical reaction for preparing the additive composition.

REFERENCES:
patent: 2772322 (1956-11-01), Witt
patent: 3424645 (1969-01-01), Ohsol
patent: 3449291 (1969-06-01), Lerman
patent: 3775357 (1973-11-01), Nemeth
Encyclopedia of Chem. Tech., vol. 7, pp. 378, 379, 380, 392, 393, (1965).

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