Composite material and process for production thereof
AssigneeTosoh Corporation
InventorsHiroshi Inoue, Toru Doi
Life of this patent
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Abstract
A transparent N-alkyl-substituted maleimide/olefin copolymer composite material is provided which comprises 100 parts by weight of an N-alkyl-substituted maleimide/olefin copolymer, and 0.1 to 100 parts by weight of phyllosilicate, the phyllosilicate being dispersed uniformly and finely in a matrix of the N-alkyl-substituted maleimide/olefin copolymer. A process for producing the N-alkyl-substituted maleimide/olefin copolymer composite material is also provided. The N-alkyl-substituted maleimide/olefin copolymer composite material is excellent in transparency, heat resistance, rigidity, and dimensional stability.
Claims4
A transparent N-alkyl-substituted maleimide/olefin copolymer composite material, comprising 100 parts by weight of an N-alkyl-substituted maleimide/olefin copolymer, and 0.1 to 100 parts by weight of phyllosilicate, said N-alkyl-substituted maleimide/olefin copolymer comprising a first component (I) constituting from 40 to 60 mole % of the copolymer:
- ##STR7## where R.sup.1 is an alkyl group of 1 to 18 carbons or a cycloalkyl group of 3 to 12 carbons;
- and a second component (II) constituting from 60 to 40 mole % of the copolymer:
- ##STR8## where R.sup.2 is hydrogen or an alkyl group of 1 to 8 carbons, and R.sup.3 and R.sup.4 are independently an alkyl group of 1 to 8 carbons;
- the copolymer having a weight-average molecular weight ranging from 1.times.10.sup.3 to 5.times.10.sup.6 ;
- and
- said phyllosilicate being dispersed uniformly and finely in a matrix of the N-alkyl-substituted maleimide/olefin copolymer.
A transparent N-alkyl-substituted maleimide/olefin copolymer composite material, comprising 100 parts by weight of an N-alkyl-substituted maleimide/olefin copolymer, and 0.1 to 100 parts by weight of phyllosilicate, said N-alkyl-substituted maleimide/olefin copolymer comprising a first component (I) constituting from 40 to 60 mole % of the copolymer:
- ##STR9## where R.sup.1 is an alkyl group of 1 to 18 carbons or a cycloalkyl group of 3 to 12 carbons;
- a second component (II) constituting from 60 to 40 mole % of the copolymer:
- ##STR10## where R.sup.2 is hydrogen or an alkyl group of 1 to 8 carbons, and R.sup.3 and R.sup.4 are independently an alkyl group of 1 to 8 carbons;
- and a third component (III):
- ##STR11## where R.sup.5 is an alkylene group of 1 to 18 carbons, and R.sup.6, R.sup.7, and R.sup.8 are independently hydrogen, or an alkyl group of 1 to 8 carbons;
- the copolymer having a weight-average molecular weight ranging from 1.times.10.sup.3 to 5.times.10.sup.6 ;
- said phyllosilicate being dispersed uniformly and finely in a matrix of the N-alykyl-substituted maleimide/olefin copolymer.
Dependencies are inferred from the claim text.