The Procter & Gamble Company
Leuco polymers as bluing agents in laundry care compositions

Abstract:

A method of obtaining a laundry care composition, the method comprising the steps of (a) reacting a compound with a polymer to form a leuco polymer and (b) mixing the leuco polymer with at least one laundry care ingredient. The compound includes at least one leuco moiety and at least one electrophilic group. The polymer is comprised of co-monomers of an aryl dicarboxylate, an oxyalkyleneoxy and an oxypolyalkyleneoxy and the polymer comprises at least one moiety selected from the group consisting of hydroxy, sulfhydryl, primary amine and secondary amine.