发明名称 |
METHOD FOR PRODUCING LIQUID-CRYSTALLINE POLYESTER POWDER |
摘要 |
The present invention provides a method for producing a liquid-crystalline polyester powder, the method comprising: carrying out melt polycondensation of monomers and/or its acylated monomers to obtain a corresponding polyester having a flow initiation temperature of 240 to 300° C.; spreading and solidifying the polyester so as to be a layer thereof with a thickness of 1 cm or more: crushing the solidified substance to obtain a powder having a volume average particle diameter of 3 to 30 μm; and subjecting the powder to a heat treatment to obtain a powder having a flow initiation temperature higher than the flow initiation temperature of the liquid-crystalline polyester after the melt polycondensation.
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申请公布号 |
US2011240353(A1) |
申请公布日期 |
2011.10.06 |
申请号 |
US201113073739 |
申请日期 |
2011.03.28 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
KOHINATA YUSAKU;HOSODA TOMOYA;OKAMOTO SATOSHI |
分类号 |
H05K1/00;C08G63/191;C08L67/03 |
主分类号 |
H05K1/00 |
代理机构 |
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地址 |
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