Patent ID: 6596291
Filing Date: 2003-07-22
Classification: A01N

Abstract:
A method for treating a hair-bearing surface of a warm-blooded animal infested with an ectoparasitic insect, comprising:topically applying to the surface an amount of a film-forming composition effective to immobilize the ectoparasitic insect, the composition consisting essentially of: a water-soluble polyalkylene glycol represented by the formula HOâ€”(Râ€”O)nâ€”H; wherein R is C1-C10 alkylene, C3-C19 alkylenecycloalkyl or C7-C20 alkylenearyl, and n is a number sufficient to provide a number average molecular weight of at least about 100,000; and a polymer or copolymer of polyalkylene oxide represented by the formula R5Oâ€”(R6(COOH)O)nâ€”H wherein R5 and R6 are selected from straight-chained or branched C1-C10 alkylene groups, or R5 is H, and n is a number sufficient to provide a number average molecular weight of at least about 100,000; maintaining the composition on the hair-bearing surface for a sufficient period of time to immobilize the ectoparasitic insect; and then removing the immobilized ectoparasitic insect from the hair-bearing surface.