Sizing agent for carbon fiber and carbon fiber treated with said

Details Sizing agent for carbon fiber and carbon fiber treated with said Sizing agent for carbon fiber and carbon fiber treated with said

1992-02-24

1994-03-29

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523205, 528 93, C08F28300

Patent

active

052985768

ABSTRACT:
A sizing agent for carbon fibers which comprises, as the indispensable ingredients, an epoxy resin having a viscosity of more than 1,000 P but up to 20,000 P at 50 .degree. C. and a urethane compound prepared from a polyol having an oxyalkylene unit with a polyisocyanate.

REFERENCES:
patent: 3525779 (1970-08-01), Hawkins et al.
patent: 4420512 (1983-12-01), Ogawa et al.
patent: 4474906 (1984-10-01), Nakama et al.
patent: 4496671 (1985-01-01), Yoshinaga et al.
patent: 4555446 (1985-11-01), Sumida et al.
patent: 4781947 (1988-11-01), Saito et al.
patent: 5028640 (1991-07-01), Shimaoka et al.
"Epikote 834 Technical Manual, EP 1.1.14, 2nd Edition" issued by Shell Chemicals.

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