Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating with particulate material
Patent
1989-01-31
1989-09-12
Lorin, Hubert
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating with particulate material
26421117, 264234, 264345, 427180, 4273722, D01D 1002
Patent
active
048657905
ABSTRACT:
In a process for producing an aromatic polyester fiber by heat-treating a fiber obtained by melt-spinning an aromatic polyester exhibiting anisotropy in its molten state, an aromatic polyester fiber having high strength and high modulus of elasticity can be produced with suppressed fusion between single filaments during the heat treatment by (a) subjecting the fiber obtained by melt spinning to heat treatment in an organic liquid heating medium or (b) adhering to the fiber obtained by melt spinning at least one member selected from the group consisting of suspensions having a concentration of 0.05 to 20% by weight of organic polymer powders having a melting point or a softening temperature higher than the heat treatment temperature, and suspensions having a concentration of 0.1 to 20% by weight of barium sulfate powder or barium titanate powder, and then subjecting the resulting fiber to heat treatment.
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Hayatsu Kazuo
Kobashi Toshiyuki
Sugimoto Hiroaki
Takagi Jun
Takao Seiji
Japan Exlan Co., Ltd.
Lorin Hubert
Sumitomo Chemical Company Limited
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