Modified polyolefin-polyester graft copolymer, method of producing same and thermoplastic resin composition containing such graft copolymer
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United States of America Patent
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Apr 21, 1992
Grant Date -
N/A
app pub date -
Oct 13, 1989
filing date -
Oct 14, 1988
priority date (Note) -
Expired
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Abstract
A modified polyolefin-polyester graft copolymer includes (a) 10-90 parts by weight of a polyester having an intrinsic viscosity [.eta.] of 0.30-1.20 and an end carboxyl group content of 15-200 milliequivalent/kg, and (b) 90-10 parts by weight of a modified polyolefin having 0.2-5 mol % of an epoxy group or carboxyl group content and a weight-average molecular weight of 8,000-140,000. A thermoplastic resin composition includes (a) 5-95 weight % of an aromatic polycarbonate, (b) 95-5 weight % of a polyolefin, and (c) 1-30 parts by weight, per 100 parts by weight of (a)+(b), of the graft copolymer.
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