Conductive resin composition and the use thereof
First Claim
1. The present invention provides a conductive resin composition comprising:
- a liquid crystalline polyester which comprises the following structure units having the formulas (i), (ii) and (iii), and has an aromatic group having 2,6-naphthalenediyl group in a ratio of not less than 5% by mole based on 100% by mole of the total of divalent aromatic groups Ar1, Ar2 and Ar3;
wherein Ar1 is selected from 2,6-naphthalenediyl group, 1,4-phenylene group and 4,4′
-biphenylylene group, Ar2 and Ar3 are each independently selected from 2,6-naphthalenediyl group, 1,4-phenylene group, 1,3-phenylylene group and 4,4′
-biphenylylene group, provided that at least one of Ar1, is Ar2 and Ar3 is 2,6-naphthalenediyl group; and
the groups Ar1, Ar2 and Ar3 optionally have a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group; and
at least one filler selected from a metal oxide conductive filler and a carbon conductive filler.
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Abstract
The present invention provides a conductive resin composition comprising a liquid crystalline polyester which comprises the following structure units having the formulas (i), (ii) and (iii), and has an aromatic group having 2,6-naphthalenediyl group in a ratio of not less than 5% by mole; and at least one filler selected from a metal oxide conductive filler and a carbon conductive filler. According to the present invention, the composition is easy to mold and can give molded products having high hydrolysis resistance. The resulting molded products are hardly to lower the strength even if they are exposed to high temperature and humid condition, and can be suitably used for a separator in a fuel cell.
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Citations
9 Claims
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1. The present invention provides a conductive resin composition comprising:
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a liquid crystalline polyester which comprises the following structure units having the formulas (i), (ii) and (iii), and has an aromatic group having 2,6-naphthalenediyl group in a ratio of not less than 5% by mole based on 100% by mole of the total of divalent aromatic groups Ar1, Ar2 and Ar3;
wherein Ar1 is selected from 2,6-naphthalenediyl group, 1,4-phenylene group and 4,4′
-biphenylylene group, Ar2 and Ar3 are each independently selected from 2,6-naphthalenediyl group, 1,4-phenylene group, 1,3-phenylylene group and 4,4′
-biphenylylene group, provided that at least one of Ar1, is Ar2 and Ar3 is 2,6-naphthalenediyl group; and
the groups Ar1, Ar2 and Ar3 optionally have a halogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group; and
at least one filler selected from a metal oxide conductive filler and a carbon conductive filler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification