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
1996-08-29
1999-01-05
Sanders, Kriellion A.
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...
524515, C08K 334, C08L 2310
Patent
active
058564004
ABSTRACT:
A polypropylene resin composition comprising an isotactic polypropylene component, a rubber component, and an inorganic filler component, wherein (a) the melt flow rate, according to ASTM D1238, is 20 g/10 min or more, (b) the flexural modulus, according to ASTM D790, is 2300 MPa or more, (c) the Izod impact strength, according to ASTM D256, is 180 J/m or more at 23.degree. C. and 45 J/m or more at -30.degree. C., (d) the heat deformation temperature, according to ASTM D648, is 130.degree. C. or more, and (e) there is a diffraction peak unique to polypropylene of space group P21/c in the diffraction pattern measured by the wide angle X-ray diffraction method in an injection molded article of the composition formed under a quenching condition.
REFERENCES:
G. Natta & P. Corradini, Suppl. Nuovo Cimento, vol. 15, 1960, pp. 40-51.
M. Hikosaka & T. Seto, Polymer Journal, vol. 5, No. 2, 1973, pp. 111-127.
Matsumura Takenobu
Naiki Masahiro
Nishio Takeyoshi
Nomura Takao
Sanders Kriellion A.
Toyota Jidosha & Kabushiki Kaisha
Ube Industries Ltd.
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