Resin composition and molded article thereof
AssigneeToray Industries, Inc.
InventorsKeiichiro Nomura, Nobuhiro Morioka, Sadayuki Kobayashi
Life of this patent
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Abstract
Disclosed is a resin composition including at least a polyamide (A) and a polyrotaxane (B) whose cyclic molecule is modified with a graft chain, which are mixed together, wherein 80 parts by weight or more and 99.9 parts by weight or less of the polyamide (A) and 0.1 part by weight or more and 20 parts by weight or less of the polyrotaxane (B) are mixed together relative to 100 parts by weight of the total amount of the polyamide (A) and the polyrotaxane (B). To provide a resin composition capable of affording a molded article having excellent balance between rigidity and toughness.
Claims6
A resin composition comprising a mixture of:
- (A) a polyamide and (B) a polyrotaxane, wherein the cyclic molecule of the polyrotaxane is modified with a graft chain, and wherein
- 80 parts by weight or more and 99.9 parts by weight or less of the polyamide (A) and 0.1 part by weight or more and 20 parts by weight or less of the polyrotaxane (B) are mixed together relative to 100 parts by weight of the total amount of the polyamide (A) and the polyrotaxane (B), and
- the resin composition has an islands-in-sea structure composed of a sea phase including the polyamide (A) as a main component and an island phase including the polyrotaxane (B) as a main component, as well as a lakes-in-islands-in-sea structure with a lake phase including the polyamide (A) and/or a reaction product of the polyamide (A) and the polyrotaxane (B) as main component(s), the lake phase being disposed in the island phase.
Dependencies are inferred from the claim text.