C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2011, 400/30
C08G 81/00 (2006.01) B29C 55/00 (2006.01) C08G 75/02 (2006.01) C08J 5/18 (2006.01) C08K 3/26 (2006.01) C08K 7/14 (2006.01) C08L 81/02 (2006.01) C08L 27/18 (2006.01) C08L 65/00 (2006.01) C08L 71/00 (2006.01) C08L 79/08 (2006.01) C08L 81/06 (2006.01) C08L 101/00 (2006.01)
Patent
CA 2001093
Disclosed herein are a poly(arylene thioether) block copolymer alternately comprising (A) at least one poly(arylene thioether-ketone) block having pre- dominant recurring units of the formula Image wherein the -CO- and -S- are in the para position to each other and (B) at least one poly(arylene thioether) block having predominant recurring units of the formula Image , (a) the ratio of the total amount of the poly(arylene thioether) block (B) to the total amount of the poly(arylene thioether-ketone) block (A) being within a range of 0.05-5 by weight, (b) the average polymerization degree of the poly(arylene thioether) block (B) being at least 10, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 350°C and a shear rate of 1,200/sec as well as a production process the poly(arylene thioether) block copolymer. The invention also pro- vides a stabilized poly(arylene thioether) block copolymer containing a basic compound either alone or in combination with an antioxidant.
Endo Hiroyuki
Kaneko Takashi
Kashiwadate Ken
Katto Takayuki
Mizuno Toshiya
Kirby Eades Gale Baker
Kureha Kagaku Kogyo K.k.
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