Title: Terephthalate ester copolymers and their use in laundry compositions
Application Number: 87108342 Application Date: 1987.12.15
Publication Number: 1020104 Publication Date: 1988.08.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08G63/18;C11D1/86;C11D3/37
Applicant(s) Name: The Procter Address:
Inventor(s) Name: Eugene Paul Gosselink;Francis Louvaine Diehl
Attorney & Agent: MA CHONGDE
Abstract:
    Terephthalate ester copolymer useful as soil release agent in detergent and fabric conditioning compositions and articles. The copolymer has the general formula Z-(T-PO)u(T-PEG)v!-T-Z1 I wherein Z and Z1 are chain terminating moieties having the empirical formula II (PEG1-x)a(PO-H)b(PEG-H)c II wherein PEG and PEG1 are identical or different poly(oxyethylene)oxy moieties each having a molecular weight in the range from about 300 to about 6000; X is C1-C4 alkyl or acyl containing from 1 to 4 carbon atoms in the alkyl moiety; T is a terephthaloyl moiety; PO is oxypropyleneosy; u is from about 0.5 to about 50; v is from about 0.05 to about 20; a is from about 0.2 to about 0.95; b is from 0 to about 0.8; c is from 0 to about 0.8; and b c is at least about 0.05; wherein u, v, a, b, c represent the average number of the corresponding units; and wherein the T-PO and T-PEG units are randomly distributed along the terephthalate ester backbone.
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