公开(公告)号：US5472492A

公开(公告)日：1995-12-05

申请号：US201694

申请日：1994-02-25

Applicant: Michael T. Issel ,  Derek W. Bannister ,  Shao H. Long ,  Quilin Wang ,  Xiang L. Zhong ,  Guiping Xiao

Inventor： Michael T. Issel ,  Derek W. Bannister ,  Shao H. Long ,  Quilin Wang ,  Xiang L. Zhong ,  Guiping Xiao

IPC: E01C23/14 ,  C08K9/04 ,  C09B63/00 ,  C09B67/08 ,  C09C1/06 ,  C09C3/08 ,  C09D7/12 ,  C09D11/00 ,  C09D133/00 ,  C09D163/00 ,  C09D167/00 ,  E01C23/22 ,  E01F9/00 ,  E01F9/04 ,  C09C1/04

CPC classification number: C09B67/001 ,  C09B63/00 ,  C09C1/06 ,  C01P2002/54 ,  C01P2004/80 ,  C01P2004/82 ,  C01P2006/19 ,  C01P2006/60

Abstract: The invention relates to extended, organic pigments, their method of manufacture and their use in paint formulations, particularly those suitable for road or traffic markings. The subject pigments typically comprise a particulate lithopone core coated with a layer of an organic pigment. According to preferred embodiments, the pigment comprises an azo compound, the pigments are rosinated, and/or the core also contains a colorant or doping material, typically a metal oxide or metal salt. An exemplary method involves mixing particulate lithopone with a coupler such as acetoacet-o-anisidide. A coupler precipitator, typically an acidifier, is then added in an amount sufficient to precipitate the coupler onto the lithopone. The lithopone-bound coupler is then reacted with a diazonium ion in an azo-coupling reaction to form a pigment. The pigment-coated lithopone particles may then be heated and coated with a rosin or modified rosin soap.

Abstract translation: 本发明涉及延伸的有机颜料，其制备方法及其在油漆配方中的应用，特别是适用于道路或交通标志的那些。 主题颜料通常包含涂覆有有机颜料层的颗粒状立德粉内核。 根据优选实施方案，颜料包含偶氮化合物，颜料被松散，和/或芯还含有着色剂或掺杂材料，通常为金属氧化物或金属盐。 一种示例性的方法包括将颗粒状立德粉与偶联剂如乙酰乙酰邻甲苯胺混合。 然后将一种成色剂沉淀器（通常为酸化剂）以足以将成色剂沉淀在该立德粉上的量加入。 然后在偶氮偶合反应中使立德酮结合的成色剂与重氮离子反应以形成颜料。 然后可以将颜料包衣的锌钡白粉颗粒加热并用松香或改性松香皂包衣。