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Document Type and Number:
WIPO Patent Application WO/2016/043218
Kind Code:
A thermosetting resin composition according to the present invention comprises purified lignin and a lignin reactive compound that has a functional group capable of reacting with the purified lignin. Herbaceous biomass used as feedstock is processed in a first solvent which is a mixed solvent of water and at least one type of alcohol selected from aliphatic alcohols having 4 to 8 carbon atoms, after which alcohol is removed from the alcoholic phase that separates at a temperature at which the first solvent biphasically separates to obtain lignin. A second solvent which is an organic solvent alone or a mixed solvent of the organic solvent and water is added to the lignin, and purified lignin is obtained by removing the second solvent from the solution that is formed by dissolving the lignin in the second solvent. Condition A: Feed concentration of the feedstock with respect to the mixed solvent is 1 to 50 mass%. Condition B: The processing temperature is 100 to 350°C. Condition C: The processing time is 0.1 to 10 hours.

YAMAO, Shinobu (1-1 Anesakikaigan, Ichihara-shi Chiba, 93, 〒2990193, JP)
KOYAMA, Yoshihito (1280, Kamiizumi Sodegaura-sh, Chiba 93, 〒2990293, JP)
MASUDA, Takao (Kita 8-jyo Nishi 5-chome Kita-ku, Sapporo-sh, Hokkaido 08, 〒0600808, JP)
TAGO, Teruoki (Kita 8-jyo Nishi 5-chome Kita-ku, Sapporo-sh, Hokkaido 08, 〒0600808, JP)
Application Number:
Publication Date:
March 24, 2016
Filing Date:
September 16, 2015
Export Citation:
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IDEMITSU KOSAN CO.,LTD. (1-1 Marunouchi 3-chome, Chiyoda-ku Tokyo, 21, 〒1008321, JP)
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Kita 8-jyo Nishi 5-chome, Kita-ku Sapporo-sh, Hokkaido 08, 〒0600808, JP)
International Classes:
C08L97/00; C08K5/17; C08K5/29; C08L61/04; C08L63/00
Domestic Patent References:
Foreign References:
Other References:
SATOSHI SHINOHARA ET AL.: "Depolymerization mechanism of lignin in water-alcohol mixtures using solid acid-catalyst", THE JAPAN PETROLEUM INSTITUTE DAI 56 KAI NENKAI KOEN YOSHISHU, vol. 56, 2013, pages 55, XP009501010
See also references of EP 3196256A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Toranomon ES Bldg. 7F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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