| abstract |
(57) [Problem] To be used as a base for adhesives for cosmetics, medical supplies, etc., so that the emulsification performance does not deteriorate over a long period of time even under acidic conditions or high temperature conditions. Provide an emulsion with improved stability. SOLUTION: (A) 100 parts by weight of polyisobutylene having a viscosity average molecular weight of 10,000 to 70,000, and (B) a number average molecular weight of 1,5. 1 to 30 parts by weight of a polyoxyethylene oxypropylene block polymer of 100 to 80,000 and 0.1 to 5 parts by weight of (C) a polyoxyethylene alkyl ether phosphate or a salt thereof or (D) 0 to 2 parts by weight of a stabilizer An emulsion having a solid content of 1 to 75% by weight with the balance being water. |