公开(公告)号：US20180127609A1

公开(公告)日：2018-05-10

申请号：US15575855

申请日：2016-05-25

申请人： KABUSHIKI KAISHA PILOT CORPORATION

发明人： Hisashi NAKAMURA

IPC分类号： C09D11/18 ,  C09D11/17 ,  C07C39/16 ,  C07H13/06 ,  C08G6/00

CPC分类号： C09D11/18 ,  B43K7/00 ,  B43K8/02 ,  C07C39/16 ,  C07H13/06 ,  C08G6/00 ,  C09D11/16 ,  C09D11/17

摘要： An oil-based ink composition for a writing instrument, comprising a dye, an organic solvent and a phenolic compound of the following general formula (1): wherein R is each independently hydrogen or an alkyl group having 1 to 5 carbon atoms, R1 is any of an alkyl group having 1 to 5 carbon atoms, a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group, and R2 is any of a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group. The oil-based ink composition for a writing instrument can form handwriting having excellent water resistance in which no bleeding occurs on written surfaces of various materials with a dye retaining color development.