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Title:
LIGNIN RESIN COMPOSITION, CURED OBJECT, AND MOLDED OBJECT
Document Type and Number:
WIPO Patent Application WO/2016/080469
Kind Code:
A1
Abstract:
Provided is a lignin resin composition which comprises a lignin derivative having a weight-average molecular weight of 500-4,000 and a phenolic novolak resin having a weight-average molecular weight of 1,000-3,000, the content of the lignin derivative being not higher than the content of the phenolic novolak resin. In particular, lignin-resin-composition cured objects (molded objects) obtained by melt-mixing the lignin resin composition, adding hexamethylenetetramine to this mixture, and heating the resultant mixture have high bending strength. The lignin resin composition is utilizable as a thermosetting resin that is a phenolic-resin substitute.

Inventors:
NAKAGAWA HIROSHIGE (JP)
MATSUMOTO MITSUTAKA (JP)
MURAI TAKETOSHI (JP)
Application Number:
PCT/JP2015/082467
Publication Date:
May 26, 2016
Filing Date:
November 18, 2015
Export Citation:
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Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
C08G8/24; C08L61/10; C08L97/00
Domestic Patent References:
WO2015178103A12015-11-26
Foreign References:
JP2013173882A2013-09-05
JP2008156601A2008-07-10
JP2012082255A2012-04-26
JP2013053205A2013-03-21
JPS6256193B21987-11-24
JP2013227470A2013-11-07
JP2015048360A2015-03-16
JP2015174894A2015-10-05
Other References:
See also references of EP 3222665A4
Attorney, Agent or Firm:
ASAHI, Kazuo et al. (JP)
Morning ratio One husband (JP)
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