Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1988-05-12
1989-10-10
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524538, 524539, 524540, 524592, 525153, 525420, 525471, 528222, 528226, C08F 8280
Patent
active
048732834
ABSTRACT:
Disclosed herein is a molded or formed poly(arylene thioether-ketone) article made of a thermoplastic material which comprises 100 parts by weight of a melt-stable poly(arylene thioether-ketone) (PTK) and if desired, up to 100 parts by weight of at least one of thermoplastic resins and/or up to 300 parts by weight of at least one of fibrous fillers and/or least one of inorganic fillers. The PTK has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and has a melting point, Tm of 310.degree.-380.degree. C., a residual melt cyrstallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., and a reduced viscosity of 0.2-2 dl/g as determined by viscosity measurement at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98 percent by weight sulfuric acid. This invention provides extruded articles, injection-molded articles, unstretched films and the like, all of which have practical physical properties, by using a novel high-density and high crystallinity PTK having melt stability sufficient to apply conventional melt processing techniques.
REFERENCES:
patent: 4590104 (1986-05-01), Ziener et al.
patent: 4690972 (1987-09-01), Johnson et al.
patent: 4698415 (1987-10-01), Sinclair et al.
patent: 4716212 (1987-12-01), Gaughan
patent: 4745167 (1988-05-01), Iizuka et al.
Indian J. Chem., vol. 21A, May 1982, pp. 501-502.
Indian Journal of Pure and Applied Physics, vol. 22, Apr. 1984, pp. 247-248.
Mol. Cryst. Liq. Cryst., vol. 83, 1982, pp. 229-238.
Iizuka Yo
Katto Takayuki
Kouyama Toshitaka
Satake Yoshikatsu
Shiiki Zenya
Foelak Morton
Kureha Kagaku Kogyo K.K.
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