Title:
REINFORCING FIBER COMPOSITE RESIN, COMPOSITE PREPREG AND LAMINATE
Document Type and Number:
WIPO Patent Application WO/2019/208823
Kind Code:
A1
Abstract:
The present invention provides: a reinforcing fiber composite resin which has achieved a good balance between high rigidity and high energy absorbability; a composite prepreg; and a laminate. A reinforcing fiber composite resin which comprises reinforcing fibers and a matrix part that is formed of a resin, and which is configured such that: the matrix part is formed of two kinds of resins, namely a first resin and a second resin, while being composed of two phases that are incompatible with each other; the first resin is a thermoplastic resin; the second resin has a glass transition temperature (Tg) of from -50°C to 30°C; the reinforcing fibers are composed of continuous fibers and/or discontinuous fibers; and in cases where the reinforcing fibers contain discontinuous fibers, the ratio of the volume of the reinforcing fibers to the total volume of the reinforcing fiber composite resin is 10% or more. A composite prepreg which uses this reinforcing fiber composite resin; and a laminate which is obtained by stacking a plurality of the composite prepregs.
Inventors:
TARUTANI YASUNORI (JP)
KAGA NORIHIKO (JP)
HIRATA MASATOSHI (JP)
KAGA NORIHIKO (JP)
HIRATA MASATOSHI (JP)
Application Number:
PCT/JP2019/018109
Publication Date:
October 31, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08J5/04; B29C70/06
Domestic Patent References:
| WO2014088035A1 | 2014-06-12 | |||
| WO2016013577A1 | 2016-01-28 | |||
| WO1996002592A1 | 1996-02-01 |
Foreign References:
| JP2012506298A | 2012-03-15 | |||
| JP2016525586A | 2016-08-25 | |||
| JP2007253549A | 2007-10-04 | |||
| JP2003261688A | 2003-09-19 | |||
| JP2016160294A | 2016-09-05 | |||
| US20170080681A1 | 2017-03-23 | |||
| US8211268B1 | 2012-07-03 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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