Propylene resin composition including isotactic polypropylene an

Details Propylene resin composition including isotactic polypropylene an Propylene resin composition including isotactic polypropylene an

1995-10-19

1999-04-06

Wilson, Donald R.

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...

524451, 524435, 524442, 524449, 524528, 524505, 525 88, 525240, C08K 326, C08K 334, C08K 318, G05L 5300

Patent

active

058919465

ABSTRACT:
A resin mixture including a composition containing polypropylene that includes a portion insoluble in xylene, an isotactic pentad fraction of not less than 96.5% and an isotactic average chain length of not less than 90, 45.about.70 parts by weight; a polyolefin resin, 5.about.20 parts by weight; an inorganic filler selected from precipitated calcium carbonate, hydrated silicic acid, and hydrated calcium silicate, 5.about.30 parts by weight; and an inorganic filler selected from talc, mica, and potassium titanate, 5.about.30 parts by weight; is superior in scratch resistance, moldability, and balance of rigidity and impact resistance. In addition, a laminate having a layer of this mixture has superior gloss. This mixture and the laminate are useful in automobile parts, electric and electronic parts, packaging materials, etc.

REFERENCES:
patent: 4363885 (1982-12-01), Fukui et al.
patent: 5302653 (1994-04-01), Nishio et al.
patent: 5563194 (1996-10-01), Watanabe et al.
"Hawley's Condensed Chemical Dictionary", 12t ed., Lewis ed., Van Nostrand Reinhold Co., New York, p. 1219 (1993).
Billmeyer, "Textbook of Polymer Science", 2nd ed., Wiley-Interscience, New York, pp. 174-175 (1962).

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