Moldings of liquid crystalline polymer powders

Details Moldings of liquid crystalline polymer powders Moldings of liquid crystalline polymer powders

C - Chemistry, Metallurgy

08

J

C08J 3/00 (2006.01) C08J 5/00 (2006.01) C09K 19/38 (2006.01) F16C 33/00 (2006.01)

Patent

CA 2511262

Thermotropic liquid crystalline polymer powders are melt molded under conditions where relatively little flow of the molten LCP occurs. This results in parts with isotropic properties, and which have relatively uniform coefficients of thermal expansion in all directions. These parts are useful, for example, in electrical and electronic applications, and with the addition of certain types of resins and/or fillers for wear parts.

L'invention concerne des poudres polymériques cristallines liquides thermotropiques moulées par fusion dans des conditions dans lesquelles on obtient un débit relativement faible de LCP fondus. On obtient ainsi des pièces aux propriétés isotropiques, possédant des coefficients d'expansion thermique dans toutes les directions relativement uniformes. Ces pièces sont utilisées, par exemple, dans des applications électriques et électroniques, avec l'addition de certains types de résines et/ou de charges pour les pièces d'usure.

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