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Polyester Liquid Crystals

Patents with Abstracts

5/29/2012

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Patents with Abstracts

8,178,646 
Method for producing liquid-crystalline polyester powder
 
Kohinata, Hosoda and  Okamoto of Sumitomo Chemical Company, Japan, produced a liquid-crystalline polyester powder by melt polycondensation of monomers and/or its acylated monomers to obtain a corresponding polyester having a flow initiation temperature of 240 to 300.degree. 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 .mu.m; 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.  (RDC 5/29/2012)

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Roger D. Corneliussen
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 5/29/2012.