[专利]
Lignin derivative, lignin resin composition, rubber composition, and molding material
申请号:
2015US-15509331
申请日:
2015-08-31
公开号:
US2017253740 A1 2017-09-07 [US20170253740]
公开日:
2017-09-07
申请人:
SUMITOMO BAKELITE
专利权人:
SUMITOMO BAKELITE
发明人:
MURAI TAKETOSHI;NAKAGAWA HIROSHIGE;MATSUMOTO MITSUTAKA
国家:
IPC:
C07G-001/00;C08H-007/00;C08K-005/00;C08L-001/02;C08L-021/00;C08L-097/00
(US20170253740) A lignin derivative that is extracted from biomass and is used for rubber reinforcement or for use in a molding material is provided. Such a lignin derivative has a number average molecular weight of 300 to 2,000, and contains a component that is soluble in a polar organic solvent, in an amount of 80% by mass or more. When such a lignin derivative is incorporated, a lignin resin composition, a rubber composition, or a molding material, all of which have excellent low hysteresis loss characteristics, elastic modulus, or tensile properties, can be obtained. Furthermore, when a component that is thermofusible is used as the soluble component, a lignin resin composition, a rubber composition, or a molding material, all of which have superior aforementioned characteristics, can be obtained.