Title:
POLYCARBOSILANE FOR SILICON CARBIDE FIBERS, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING SILICON CARBIDE FIBERS
Document Type and Number:
WIPO Patent Application WO/2024/095991
Kind Code:
A1
Abstract:
To provide a fiber material suited to a method for producing silicon carbide fibers endowed with excellent mechanical properties. The polycarbosilane for silicon carbide fibers according to the present invention is a reaction product of a composition that contains a cyclic silane compound and has a weight average molecular weight (Mw) of from 10,000 to 16,000, a number average molecular weight (Mn) of from 1500 to less than 6000, and a ratio (Mw/Mn) of the weight average molecular weight (Mw) and number average molecular weight (Mn) of from 2.0 to less than 4.5. The method for producing a polycarbosilane for silicon carbide fibers according to the present invention synthesizes a polycarbosilane using a composition that contains a cyclic silane compound and subjects the reaction product to molecular weight adjustment treatment.
Inventors:
NAITO RYOTA (JP)
SAITO JUNKI (JP)
IUCHI RYO (JP)
YAMAKAWA KOJI (JP)
GOTO TATSURU (JP)
SAITO JUNKI (JP)
IUCHI RYO (JP)
YAMAKAWA KOJI (JP)
GOTO TATSURU (JP)
Application Number:
PCT/JP2023/039177
Publication Date:
May 10, 2024
Filing Date:
October 31, 2023
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
C08G77/60; D01F9/10
Foreign References:
| JP2019137935A | 2019-08-22 | |||
| JPS6485225A | 1989-03-30 | |||
| JPS61136962A | 1986-06-24 | |||
| JPS59135227A | 1984-08-03 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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