Plastic and nonmetallic article shaping or treating: processes – Disparate treatment of article subsequent to working,... – Effecting temperature change
Patent
1972-10-30
1976-01-06
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Disparate treatment of article subsequent to working,...
Effecting temperature change
260841, 264176F, 264347, B29C 2500
Patent
active
039313867
ABSTRACT:
A process for producing a drawn or undrawn flame-resistant and anti-fusing cured phenolic continuous filament which comprises melt-spining an uncured novolak resin which may contain a fiber-forming thermoplastic synthetic resin and then curing the melt-spun filament with a curing agent in the presence of a catalyst; characterized by pre-curing the melt-spun filament with an aldehyde as a curing agent in the presence of an acid catalyst, and then curing the pre-cured filament with an aldehyde in the presence of a basic catalyst.
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Alien Prop. Ser. No. 375,537 Ubbelohyde 4-27-1943.
Kimura Isao
Koyama Hiroaki
Nippon Kynol Incorporated
Woo Jay H.
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