The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1976
Filed:
Oct. 30, 1972
Applicant:
Inventors:
Isao Kimura, Suita, JA;
Hiroaki Koyama, Osaka, JA;
Assignee:
Nippon Kynol Incorporated, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264236 ; 260841 ; 2641 / ; 264347 ;
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.