C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/2058, 400/90
C08L 57/00 (2006.01) C08K 5/00 (2006.01) C08K 5/09 (2006.01) C08K 5/39 (2006.01) C08K 5/51 (2006.01) C08K 13/02 (2006.01) C08L 53/00 (2006.01)
Patent
CA 2023417
ABSTRACT OF THE DISCLOSURE A crystalline polyolefin composition which provides molded articles having improved stiffness characteristics is disclosed, comprising 100 parts by weight of a crystalline polyolefin, (A) from 0.001 to 1 part by weight of a fluoro- phosphite compound represented by formula (I): Image (I) wherein R represents an alkylidene group having from 1 to 4 carbon atoms or a sulfur atom; Ar1 and Ar2, which may be the same or different, each represents an alkylarylene group or a cycloalkylarylene group; and n represents 0 or 1, and (B) from 0.001 to 1 part by weight of at least one compound selected from the group consisting of (1) an aliphatic monocarboxylic acid salt with lithium or sodium, (2) a dithiocarbamic acid salt with lithium, sodium or potassium, (3) a 2-mercaptobenzothiazole salt with lithium, sodium or potassium, (4) a 2-mercaptobenzimidazole salt with lithium, sodium or potassium and (5) a benzotriazole salt with lithium, sodium or potassium. A crystalline polyolefin composition which provides molded articles gaving improved stiffness charateristics is also disclosed, comprising 100 parts by weight of a crystal- line polyolefin, (A) from O.OGl to 1 part by weight of a fluorophosphite compound represented by formula (I), shown above (B') from O.OO1 to 1 part by weight of at least one compound selected from the group consisting of (1) an aliphatic monocarboxylic acid salt with potassium, strontium or barium, (2) a hydroxy-higher fatty acid salt with potas- sium, strontium or barium, (3) an aliphatic polycarboxylic acid salt with lithium, sodium, potassium, strontium or barium, (4) a salt of an aliphatic hydroxy acid having form 2 to 6 carbon atoms with lithium, sodium, potassium, magnesium, strontium or barium, (5) an aromatic carboxylic acid salt with lithium, sodium, strontium, barium or aluminum, (6) a glutamic acid salt with lithium, sodium, potassium, strontium or barium, (7) an aliphatic phosphoric acid salt with sodium, potassium, calcium, strontium or barium,(8) a lithium, sodium, potassium or barium salt of a cyclic phosphorus compound represented by formula (II): Image (II) wherein Ar3 and Ar4, which may be the same or different, each represents an arylene group, an alkylarylene group, a cyclo- alkylarylene group, an arylarylene group or an aralkylarylene group; M represents lithium, sodium, potassium or barium; and m represents an atomic valence of M, (9) magnesium or aluminum hydroxide, (10) magnesium oxide, (11) magnesium or calcium carbonate and (12) hydrotalcite, and (C) from 0.01 to 1 part by weight of an aliphatic amine.
Chisso Corporation
Macrae & Co.
LandOfFree
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