Process for producing modified phenolic novolak fibers

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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528131, 528132, 260840, 264176F, 264210F, C08G 1408

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active

041153642

ABSTRACT:
A process for producing phenolic novolak filaments having improved heat resistance which comprises melt-spinning a fiber-forming phenolic resin and curing the resulting filaments, wherein at least one compound containing at least one group selected from the group consisting of active hydrogen-containing amino, amide, thioamide, ureylene and thioureylene groups and derivatives of these groups is applied to said phenolic resin before, during or after the curing treatment.

REFERENCES:
patent: 2378667 (1945-06-01), Vaala
patent: 2484523 (1949-10-01), McClellan
patent: 3223668 (1965-12-01), Stalego
patent: 3546172 (1970-12-01), Johnson et al.
patent: 3808289 (1974-04-01), Okuhashi et al.
patent: 3848044 (1974-11-01), Hagiwara et al.
patent: 3884754 (1975-05-01), Kimura et al.

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