C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/9418, 400/94
C08J 3/20 (2006.01) C08J 3/205 (2006.01) C08K 5/00 (2006.01) C08L 23/12 (2006.01)
Patent
CA 1149536
RC-1435 METHOD FOR INCORPORATING NUCLEATING AGENTS IN PROPYLENE POLYMERS ABSTRACT OF THE INVENTION 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°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 con- tact with said spray. -i-
339030
Carrock Frederick E.
Thakker Mahendra T.
El Paso Polyolefins Company
Gowling Lafleur Henderson Llp
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