公开(公告)号：EP0802951A1

公开(公告)日：1997-10-29

申请号：EP96938346.0

申请日：1996-11-14

申请人： ALLIED COLLOIDS LIMITED

发明人： CLARKE, John, Bernard ,  WALKER, Christopher, Robert

IPC分类号： C09D7 ,  C09D17

CPC分类号： C09D17/001 ,  C09D7/45

摘要： A pigment dispersant, for instance for incorporation in an emulsion paint containing non-reactive or reactive pigment, is a water-soluble copolymer of monomer units derived from two or more monomers of the formula CH2=CR1-COOR2 wherein R1 is methyl in 75 to 85 mol % of the monomer units and is hydrogen in the remainder, and R2 is hydrogen or a cation in 75 to 85 mol % of the monomer units and is C1-8 alkyl in the remainder of the monomer units and wherein at least 80% of the R2 alkyl groups are butyl groups.