Title:
PHENOLIC RESIN COMPOSITION SHEET, PHENOLIC RESIN COMPOSITION SHEET WITH RELEASE FILM, METHOD FOR PRODUCING B-STAGED PHENOLIC RESIN COMPOSITE SHEET, METHOD FOR PRODUCING CURED PHENOLIC RESIN COMPOSITE SHEET, AND METHOD FOR PRODUCING CARBONIZED PHENOLIC RESIN COMPOSITE SHEET
Document Type and Number:
WIPO Patent Application WO/2021/241245
Kind Code:
A1
Abstract:
A phenolic resin composition sheet which is used for a step wherein a layer of a phenolic resin composition is arranged on at least one surface of a sheet-like base material and the phenolic resin composition is melted and liquefied by heating the layer of the phenolic resin composition, thereby having the base material impregnated with the phenolic resin composition. This phenolic resin composition sheet contains a resol type phenolic resin and a polyvinyl butyral; the amount of the resol type phenolic resin is from 50% by mass to 95% by mass relative to the entirety of the phenolic resin composition sheet; and this phenolic resin composition sheet is in a B-stage state, while being in the form of a sheet.
Inventors:
SUZUKI YUJI (JP)
Application Number:
PCT/JP2021/018179
Publication Date:
December 02, 2021
Filing Date:
May 13, 2021
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
B29C70/06; B29C70/34; B32B27/30; B32B27/42; C08J5/24; C08L29/04; C08L29/14; C08L61/10; C08L63/00; B29K61/04; B29K101/10; B29K105/06
Domestic Patent References:
| WO2018030162A1 | 2018-02-15 |
Foreign References:
| JPH08151460A | 1996-06-11 | |||
| JP2020063362A | 2020-04-23 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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