| 摘要 |
A lime soap dispersant comprising a polyester represented by the general formula:wherein A represents a -CO- group, R<1 >represents a C2-4 alkylene group, R<2 >represents a C3-4 alkylene group, R<3 >represents a phenylene group, naphthylene group or biphenylene group, R<4 >represents a C2-8 alkylene group, R<5 >represents a C2-8 alkylene group, R<6 >represents a phenylene, naphthylene or biphenylene group which may be substituted with a -SO3M or -COOM group, X represents H, a C1-4 alkyl group, -R<7>SO3M group, -R<8>COOM group or -C(O)R<9 >group, M represents H or water-soluble cation, and R<7>, R<8 >and R<9 >independently represent a C1-4 alkyl group, m1 and m2 are independently a number of 0 to 25 while m1+m2 is 3 to 25, n1 is a number of 1 to 40, n2 is 0 to 5, n3 is 1 to 40, n4 is 1 to 10, n5 is 0 to 5, and n6 is 1 to 40.
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