Method for incorporating nucleating agents in propylene polymers

Details Method for incorporating nucleating agents in propylene polymers Method for incorporating nucleating agents in propylene polymers

1978-12-18

1980-01-15

Levin, Stanford M.

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

Synthetic resins

Ethylenically unsaturated reactant admixed with a preformed...

260 96PC, 260DIG35, 528485, 528486, 528487, 528490, 528492, 528494, 528502, C08F 600

Patent

active

041840267

ABSTRACT:
An inexpensive yet reliable method for incorporating a minor fraction of a percent by weight of nucleating agent in a propylene polymer is provided in which the nucleating agent is dissolved at a concentration of less than 10% in a homogeneous, alcohol-based, carrier liquid having a normal boiling point of not over about 120.degree. C. The resultant solution is atomized into a full jet spray of fine droplets which is directed with full and even coverage onto a loose pulverulent bed of propylene polymer powder over a period of time and with sufficient agitation of said bed to expose essentially all segments of the bed to direct contact with said spray.

REFERENCES:
patent: 3326880 (1967-06-01), Binsbergen
patent: 3367926 (1968-02-01), Voecks

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