C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 493/04 (2006.01) C08K 5/06 (2006.01) C08K 5/1575 (2006.01) C08K 5/41 (2006.01) C08L 23/02 (2006.01)
Patent
CA 2094697
A process for incorporating a clarifying agent into a semi-crystalline polyolefin resin is provided whereby a clarifying agent selected from compounds having the formula: Image wherein p is 0 or 1, m and n are independently 0-3, and R is, at each occurrence, independently selected from C1-8 alkyl, C1-4 alkoxy, hydroxy, halogen, C1-6 alkylthio, C1-6 alkylsulfoxy and a 4 or 5 membered alkyl group forming a carbocyclic ring with adjacent carbon atoms of the unsaturated parent ring, and wherein the clarifying agent is in the form of a powder characterized by a d97 of 30 microns or less, and a mean particle size of 15 microns or less, is blended with the polyolefin resin, at a temperature above 170°C until the clarifying agent is dissolved in the molten resin.
Gowling Lafleur Henderson Llp
Milliken & Company
Milliken Research Corporation
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