Polysiloxane-polyoxyethylene-polyoxypropylene triblock-copolymers and antifoam compounds containing the same

(57) A summary and subject Poliomyelitis キシアルキレン * Pori Shiroki Sanko polymer which shows a good 消泡 action in water disperse dye. Solution means Polysiloxane * polyoxyethylene * polyoxypropylene * Tori Brock コポリマー by the present invention is shown by general formula I: 化 1. Effect The 消泡 effect is held for longer time, and moreover, when polysiloxane * polyoxyethylene * polyoxypropylene * Tori Brock コポリマー by the present invention applies disperse dye to the surface, it does not produce a moistness obstacle.