Patent ID: 8114387

Claim:
A sunscreen comprising at least one polyamide-polyether block copolymer, at least one sunscreen active agent, water, and at least one surfactant, wherein said copolymer comprises a softening point that is at least 80° C. and not more than 130° C., and is formed from a reaction mixture of polymerized fatty acid and at least two diamine compounds comprising a poly(alkyleneoxy) diamine (PAODA) and a short-chain aliphatic diamine (SDA) having from 2 to 6 carbon atoms wherein, a) for a reaction mixture comprising x grams of PAODO and y grams of SDA, the ratio x/(x+y) is from 0.8 to 0.98 and b) for a reaction mixture weighing z grams, the ratio x/z is >0.40.