PREPREG, MULTILAYER BODY AND MOLDED ARTICLE

WIPO Patent Application WO/2020/235486

A1

The present invention addresses the problem of providing: a prepreg for producing a multilayer body that is suitable as a structural material, which has excellent combustion resistance, compressive strength and interlaminar fracture toughness value, while being able to be firmly combined with another structural member by means of welding; and a multilayer body. The present invention is a prepreg which contains, as components, (A) reinforcing fibers, (B) a thermosetting resin and (C) a thermoplastic resin, and which is characterized in that: component (B) contains at least one resin that is selected from among cyanate ester resins having an average cyanate equivalent weight of 220 or less, bismaleimide resins having an average maleimide equivalent weight of 210 or less and benzoxazine resins having an average oxazine equivalent weight of 300 or less; component (C) is present in the surface of the prepreg; and there are some reinforcing fibers (A) that are contained in both a resin region containing component (B) and a resin region containing component (C) by extending across the boundary surface between those resin regions.

SHINOHARA KYOKO (JP)
HONMA MASATO (JP)
MISUMI JUN (JP)

PCT/JP2020/019468

November 26, 2020

May 15, 2020

Click for automatic bibliography generation  

TORAY INDUSTRIES (JP)

B32B5/28; C08J5/24

JPH05170952A	1993-07-09
JPH05170953A	1993-07-09
JP2007016121A	2007-01-25
JP2006183173A	2006-07-13
JP2015067910A	2015-04-13
JP2011099072A	2011-05-19
JP2010195887A	2010-09-09
JPH0747152A	1995-02-21
JP2018161801A	2018-10-18
JPH10138354A	1998-05-26
JP3906319B2	2007-04-18
JPH04292635A	1992-10-16
JP2014139360A	2014-07-31

T. YAMANES. KATAYAMAM, TODOKII. HATTA, J. APPL. PHYS., vol. 80, 1996, pages 4385
See also references of EP 3974175A4

View/Download PDF      PDF Help

Previous Patent: PREPREG, LAMINATE, AND MOLDED ARTICLE

Next Patent: PREPREG, LAMINATE, AND MOLDED ARTICLE