Document Type and Number:
Japanese Patent JPH0249212
Kind Code:
B2
Abstract:
PURPOSE:To produce the titled molded article economically and advantageously, by melting a solid arom. polyamide composed of a specified repeating unit by heating, and molding it by extruding it through a discharge port before moldability is lost while solidifying the extrudate by cooling. CONSTITUTION:A solid arom. polyamide composed of at least one repeating unit selected from units of formulasI-III (wherein the groups of formulas II and III are present in a substantially equimolar ratio when both groups are present; R, R', R'' are each a bivalent group; at least 70mol% of the sum of R, R' and R'' is arom. group) is molten by heating and molded by extruding it through a discharge port within a period of time within which the moldability of the polyamide is not lost, while solidifying the extrudate by cooling. In this way, the melt molding of the arom. polyamide which has been heretofore difficultly melt- molded, becomes possible economically and advantageously.
Inventors:
SEGAWA YASUHIKO
NOROTA SUSUMU
KIRYAMA TSUTOMU
EMI SHINGO
IMOTO TADASHI
YAMAUCHI TETSUO
NOROTA SUSUMU
KIRYAMA TSUTOMU
EMI SHINGO
IMOTO TADASHI
YAMAUCHI TETSUO
Application Number:
JP7023881A
Publication Date:
October 29, 1990
Filing Date:
May 12, 1981
Export Citation:
Assignee:
TEIJIN LTD
International Classes:
D01F6/80; B29C47/00; C08J5/00; D01D5/08; B29K77/00
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