Resin composition
AssigneeUnitika Ltd.
InventorsKayomon Kyo, Nakaba Asahara, Yasuhiko Asai, Isamu Hirose, Kenichirou Nakamoto
Life of this patent
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Abstract
A resin composition consisting essentially of (A) an aromatic copolyester derived from (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof and (2) a bisphenol and/or the functional derivatives thereof; (B) a polyamide; and (C) a compound of a metal of Groups IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA or VA of the Periodic Table. An article molded from the resin composition exhibits high heat resistance, mechanical properties and moldability. It is particularly resistant to cracking upon impact, and is also resistant to breaking at a thin walled portion.
Claims28
A resin composition consisting essentially of
- (A) an aromatic copolyester comprising the reaction product in about equimolar amounts of
- (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof with the terephthalic acid unit to the isophthalic acid unit molar ratio being about 9:1 to about 1:9 and
- (2) a bisphenol of the general formula (I):
- ##STR6## wherein --X-- represents a member selected from the group consisting of --O--, --S--, --SO.sub.2 --, --SO--, --CO--, an alkylene group containing 1 to 5 carbon atoms and an alkylidene group containing 1 to 5 carbon atoms, and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ', which may be the same or different, each is selected from the group consisting of a hydrogen atom, a chlorine atom, a bromine atom and an alkyl group containing 1 to 5 carbon atoms, and/or a derivative thereof;
- (B) a polyamide containing therein a repeating unit of the following general formula (II):
- ##STR7## wherein R.sub.5, R.sub.6 and R.sub.7, which may be the same or different, each represents an alkylene group containing 4 to 11 carbon atoms and n is an integer of from 30 to 500 and
- (C) an oxide of or an inorganic or organic salt of a metal of Groups IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA or VA of the Periodic Table said aromatic copolyester (A) and said polyamide (B) being present in a weight ratio ranging from about 9:1 to about 1:9.
Dependencies are inferred from the claim text.