Patent ID: 6794475
Filing Date: 2004-09-21
Classification: C08F,C09D

Abstract:
A copolymer comprising:polymerized units consisting essentially of: (a) at least one reactive macromer of at least one alkylene oxide having at least one functional group which is capable of free-radical transformation, wherein said macromer comprises less than 10 wt. % of total copolymer weight and has a number average molecular weight from about 100 to about 10,000, and said macromer has the formula: Xâ€”(Yâ€”O)nâ€”Z wherein Y is a straight or branched chain alkylene radical having 1 to 6 carbon atoms, X is a functional group capable of free-radical transformation selected from a radical of the formula H2C&boxH;CHC(O)O, H2C&boxH;C(CH3)C(O)Oâ€”, CH2&boxH;CHCH2Oâ€”, H2C&boxH;CHOâ€”, H2C&boxH;CHSO3â€”, vinylbenzyl and mercaptan, Z is H, CmH2m+1, phosphate, or the same as X, mi is 1 to 3, and n varies in order to achieve said number average molecular weight; and(b) 0 wt. % to 10 wt. % of one or more ethylenically unsaturated monomers having at least one carboxylic acid group; and (c) one or more radically polymerizable comonomers, wherein said comonomer comprises one or more of acrylic acid esters, unsaturated nitrites, styrenic monomers, vinyl esters, vinyl ethers and conjugated dienes; and wherein said copolymer is coagulable.