Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-01-21
1994-05-10
Chan, Nicky
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D40704
Patent
active
053109503
ABSTRACT:
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: ##STR1## wherein p is 0 or 1, m and n are independently 0-3, and R is, at each occurrence, independently selected from C.sub.1-8 alkyl, C.sub.1-4 alkoxy, hydroxy, halogen, C.sub.1-6 alkylthio, C.sub.1-6 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 d.sub.97 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.degree. C. until the clarifying agent is dissolved in the molten resin.
REFERENCES:
patent: 4016118 (1977-04-01), Hamada et al.
patent: 4314039 (1982-02-01), Kawai et al.
patent: 4371645 (1983-02-01), Mahaffey, Jr.
patent: 4410649 (1983-10-01), Cieloszyk
patent: 4532280 (1985-07-01), Kobayashi et al.
patent: 4845137 (1989-07-01), Williams et al.
patent: 4954291 (1990-09-01), Kobayashi et al.
patent: 5049605 (1991-09-01), Rekers
Binsbergen, Polymer 11 (1970) pp. 253-267: Discussion of nucleating agents for polypropylene including effects of the degree and method of dispersion of the nucleating agent.
Plastics Additives Handbook, edited by Gachter/Muller, pp. 671-676 & 679-683 (1985): Discussion of nucleating agents for partly crystalline polymers, especially nucleating agents which are insoluble in the polymer.
Chan Nicky
Milliken Research Corporation
Monahan Timothy J.
Moyer Terry T.
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