C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2011
C08G 75/10 (2006.01) C08G 75/02 (2006.01)
Patent
CA 2040975
Disclosed herein are a poly(arylene thioether-ketone) copolymer comprising (A) at least one poly(arylene thioether-ketone) segment having predominant 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) segment having predominant recurring units of the formula Image , (a) the ratio of the total amount of the poly(arylene thioether) segment (B) to the total amount of the poly(arylene thioether-ketone) segment (A) ranging from 0.05 to 5 by weight, (b) the number-average polymerization degree of the poly(arylene thioether) segment (B) being higher than 1 but lower than 10, and (c) said 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 of the poly(arylene thioether-ketone) copolymer. The polymers of the present invention have improved processability, handling properties and solvent resistance and can be formed or molded into various heat- resistant products. The polymers have wide applicability and can be formed into sheets, films, pipes, electronic and electric parts, car parts, circuit boards, etc.
Inaguma Yoshiyuki
Satake Yoshikatsu
Suzuki Yasuhiro
Kirby Eades Gale Baker
Kureha Kagaku Kogyo K.k.
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