Precursor composition of silicon carbide

Details Precursor composition of silicon carbide Precursor composition of silicon carbide

1985-10-15

1987-04-14

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...

528 33, 528 35, 528 39, 524267, C08F28300

Patent

active

046579915

ABSTRACT:
The precursor composition of silicon carbide fibers provided by the invention has greatly improved spinnability and can be spun at a very high spinning velocity to give a green filament which has a much larger tensile strength than those of conventional precursor materials and is capable of giving silicon carbide fibers having increased tensile strength by the infusibilization and calcination of the green filament of the composition under tension. The composition comprises from 80 to 99.9 parts by weight of a polycarbosilane polymer and from 20 to 0.01 part by weight of a silmethylene polymer having a degree of polymerization larger than the specified lower limit.

REFERENCES:
patent: 4110386 (1978-08-01), Yajima et al.
patent: 4117057 (1978-09-01), Yajima et al.
patent: 4122139 (1978-10-01), Yajima et al.
patent: 4134759 (1979-01-01), Yajima et al.
patent: 4147538 (1979-04-01), Yajima et al.

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