Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-02-13
1993-10-26
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528388, C08L 8106
Patent
active
052567435
ABSTRACT:
Disclosed herein is a poly(arylene thioether) resin composition comprising 100 parts by weight of a poly(arylene thioether) (A) having a shear rate dependence value of melt viscosity at 310.degree. C. of 2.2-3.0 and a crystallization temperature of 175.degree.-210.degree. C., and 20-400 parts by weight of a poly(arylene thioether) (B) having a shear rate dependence value of melt viscosity at 310.degree. C. of 1.0-2.0 and a crystallization temperature of 220.degree.-260.degree. C. The resin portion consisting of the poly(arylene thioethers) (A) and (B) in the resin composition has a melt viscosity of 1,400-3,500 poises as measured at 310.degree. C. and a shear rate of 1,200 sec.sup.-1, a shear rate dependence value of melt viscosity at 310.degree. C. of 1.5-2.3, and a crystallization temperature of 205.degree.-230.degree. C. Extruded products such as a tubular extruded article obtained from the resin composition are also disclosed.
REFERENCES:
patent: 3988286 (1976-10-01), Edmonds, Jr. et al.
patent: 4645826 (1987-02-01), Iizuka et al.
Enoki Toshio
Sakaguchi Yasuo
Kureha Kagaku Kogyo K.K.
Lee Helen F.
Marquis Melvyn I.
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