Patent ID: 7732519

Claim:
A method for preparation of an emulsion composition for manufacturing a silicone rubber, the emulsion composition comprising: (A) 100 parts by weight of a diorganopolysiloxane having at least two silicon-bonded alkenyl groups in a molecule; (B) 10 to 250 parts by weight of water that contains a smectite clay; (C) 0.1 to 15 parts by weight of an emulsifier; (D) (d1) a cross-linking agent in an amount sufficient for cross-linking component (A), and (d2) a catalyst; and (E) 0 to 60 parts by weight of a reinforcing silica filler, said method comprising the steps of loading a mixture of an appropriate amount of component (A) and an appropriate amount of component (E) together with an appropriate amounts of components (B) and (C) into a high-speed stiffer-equipped mixer, mixing the components till a uniform emulsion is formed, loading into the mixer an appropriate amount of components (d1) and (d2), and stirring and mixing the components.