Title:
RELEASE SHEET-PROVIDED MULTILAYER STRUCTURE PREPREG, PREPREG ROLL, PREPREG TAPE, AND COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/040152
Kind Code:
A1
Abstract:
Regarding a prepreg having a non-impregnated portion left, the present invention addresses the problem of providing a prepreg capable of achieving sufficient vacuum moldability and handleability. The release sheet-provided multilayer structure prepreg is obtained by bonding a release sheet to the upper surface and/or the lower surface of a multilayer structure prepreg which has layered therein, in an alternate manner, non-impregnated layers and impregnated layers each obtained by impregnating a reinforcing fiber sheet with a matrix resin, wherein: the upper surface and the lower surface of the multilayer structure prepreg are formed of impregnated layers; and the inner layer portion of the multilayer structure prepreg excluding the upper surface and the lower surface includes at least one non-impregnated layer.
Inventors:
OCHI TAKASHI (JP)
NISHINO SO (JP)
AOKI JUNICHI (JP)
MINOURA KIYOSHI (JP)
NISHINO SO (JP)
AOKI JUNICHI (JP)
MINOURA KIYOSHI (JP)
Application Number:
PCT/JP2019/032494
Publication Date:
February 27, 2020
Filing Date:
August 20, 2019
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B29B11/16; B29B15/12; B29K101/10
Domestic Patent References:
| WO2013038521A1 | 2013-03-21 |
Foreign References:
| JP2012167230A | 2012-09-06 | |||
| JPS60152580A | 1985-08-10 | |||
| JP2001511827A | 2001-08-14 | |||
| JP2012246442A | 2012-12-13 | |||
| JP2016531026A | 2016-10-06 | |||
| JP2014218588A | 2014-11-20 | |||
| US20170051438A1 | 2017-02-23 | |||
| JP2017185770A | 2017-10-12 | |||
| JPS6416612A | 1989-01-20 | |||
| JPH01178412A | 1989-07-14 | |||
| CN101913253A | 2010-12-15 |
Download PDF: