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公开(公告)号:US4013687A
公开(公告)日:1977-03-22
申请号:US531370
申请日:1974-12-10
申请人: Hugh Patrick Dryhurst Paget , Leslie Richard Rogers , James Kenneth Davenport Royle , James Frederick Stansfield , Arthur Topham
发明人: Hugh Patrick Dryhurst Paget , Leslie Richard Rogers , James Kenneth Davenport Royle , James Frederick Stansfield , Arthur Topham
IPC分类号: C09B1/12 , C09B1/20 , C09B1/503 , C09B3/66 , C09B5/00 , C09B47/08 , C09B67/22 , C09B67/42 , C09B69/10 , C09B1/16
CPC分类号: C09B68/41 , C09B1/12 , C09B1/20 , C09B1/503 , C09B3/66 , C09B47/08 , C09B5/00 , C09B67/0034 , C09B67/0035 , C09B67/0071 , C09B69/101 , C09B69/108
摘要: Dyestuffs of the formulaeD--Z--O--OC--X--O).sub.y H].sub.nandD--Z--O--OC--X--O).sub.(y.sub.-1) COT].sub.nwherein D is the radical of an anthraquinone dyestuff which is attached to Z through a carbon atom of an aromatic ring present in D; Z is a divalent bridging group; n is a positive integer having a value of 1 to 4; X is a divalent saturated or unsaturated aliphatic radical containing at least 8 carbon atoms and in which there are at least 4 carbon atoms between the --CO-- and --O-- groups; T is a saturated or unsaturated aliphatic radical of from 8-20 carbon atoms and y is a positive number in the range 2-20 inclusive.A process for making the above dyestuffs and their use as dispersing agents in the stabilization of dispersions of finely divided solids.