发明名称 CRAYON AND PROCESS FOR PRODUCING THE SAME
摘要 The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: dissolving and dispersing a resin component, carbon black having a pH of less than 5.0 and an organic amine in an organic solvent, dissolving at least one gelling agent selected from the group consisting of dibenzylidene sorbitol, tribenzylidene sorbitol and derivatives thereof in the resultant under heating to prepare a raw material solution, pouring the raw material solution into a molding container, and cooling and gelling the raw material solution.
申请公布号 US2010016471(A1) 申请公布日期 2010.01.21
申请号 US20070439438 申请日期 2007.08.29
申请人 SAKURA COLOR PRODUCTS CORPORATION 发明人 SUMITOMO KOTARO;TAKAHASHI MASAMITSU;FUKUO HIDETOSHI
分类号 C09D13/00 主分类号 C09D13/00
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