Sizing agent for carbon fiber

Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Treating textiles or fibers from synthetic resin or natural...

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811551, 4234471, 4234472, D06M 1500

Patent

active

051084589

ABSTRACT:
This invention provides a sizing agent for carbon fiber which contains an isocyanate regenerating compound which is an isocyanate compound, the --NCO group of which is stabilized with a blocking agent. Further provided are carbon fiber improved in adhesion to resins and carbon fiber reinforced composite materials improved in various properties such as tensile strength, flexural strength and Izod impact strength.

REFERENCES:
patent: 4009305 (1977-02-01), Fujimaki et al.
patent: 4433017 (1984-02-01), Goto et al.
patent: 4606808 (1986-08-01), Yamada et al.

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