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Title:
HIGHLY HEAT-RESISTANT RESIN COMPOSITE INCLUDING CHEMICALLY MODIFIED, FINE CELLULOSE FIBERS
Document Type and Number:
WIPO Patent Application WO/2019/230970
Kind Code:
A1
Abstract:
Provided is a resin composite having high mechanical properties which make the resin composite moldable into and usable as members for use in applications such as vehicle-mounted members and electrical materials. The resin composite comprises 0.5-40 mass% chemically modified, fine cellulose fibers and a resin, wherein the chemically modified, fine cellulose fibers have a pyrolysis initiation temperature (TD) of 270°C or higher, a number-average fiber diameter of 10 nm or larger but less than 1 μm, and a degree of crystallinity of 60% or higher. In a preferred embodiment, the chemically modified, fine cellulose fibers have a coefficient of variation (CV) in DS unevenness ratio, DSs/DSt, of 50% or less, the DS unevenness ratio being the ratio of the modification degree (DSs) of the surface layers of the fibers to the modification degree (DSt) of the whole of the fibers.

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Inventors:
ONO HIROFUMI (JP)
KAWAHARA KAZUFUMI (JP)
OZAWA RYOSUKE (JP)
OHGA MASAHIRO (JP)
Application Number:
PCT/JP2019/021845
Publication Date:
December 05, 2019
Filing Date:
May 31, 2019
Export Citation:
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Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08J5/06; C08L1/10; C08L101/00; D21H11/18; D21H13/02
Domestic Patent References:
WO2017135413A12017-08-10
WO2016010016A12016-01-21
WO2016148233A12016-09-22
WO2017073700A12017-05-04
WO2017159823A12017-09-21
Foreign References:
JP2013044076A2013-03-04
JP2013043984A2013-03-04
JP2017095831A2017-06-01
JP2011213754A2011-10-27
JP2011016995A2011-01-27
JP2016089077A2016-05-23
JP2014180777A2014-09-29
JP2013044076A2013-03-04
JP2013043984A2013-03-04
JP2010104768A2010-05-13
JPH07228775A1995-08-29
JP2003055549A2003-02-26
Other References:
"Mokushitsu Kagaku Jikken Manual", 2000, pages: 92 - 97
"Polymer Process Engineering", 1994, PRENTICE-HALL, INC, pages: 291 - 294
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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