Abstract: A method for manufacturing a laminate sheet including a fluororesin film and a silicone rubber sheet that are adhered to one another, where the fluororesin film has a reactive functional group as a result of a surface treatment, the side with the reactive functional group is overlapped with an organic peroxide-containing millable-type silicone rubber composition, where the silicone rubber composition is sheet-shaped and the organic peroxide has a one-minute half-life temperature in the range of 100?150° C., and the silicone rubber composition is cured by being heated under pressure at 90-135° C. The laminate sheet has a peel adhesion strength of 3N or more. The four corners of a 120 mm square test sample of the laminate sheet do not curve into one end of a semicircular arc shape or one end of a C shape, and the average warpage value of the four corners is 35 mm or less.

Abstract: A method for manufacturing a laminate sheet including a fluororesin film and a silicone rubber sheet that are adhered to one another, where the fluororesin film has a reactive functional group as a result of a surface treatment, the side with the reactive functional group is overlapped with an organic peroxide-containing millable-type silicone rubber composition, where the silicone rubber composition is sheet-shaped and the organic peroxide has a one-minute half-life temperature in the range of 100-150° C., and the silicone rubber composition is cured by being heated under pressure at 90-135° C. The laminate sheet has a peel adhesion strength of 3N or more. The four corners of a 120 mm square test sample of the laminate sheet do not curve into one end of a semicircular arc shape or one end of a C shape, and the average warpage value of the four corners is 35 mm or less.

Abstract: A silicone rubber sponge emulsion composition comprising (A) (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule, or a paste-like mixture of (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule and (d) a reinforcing filler, (b) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (c) a platinum catalyst, (B) an aqueous solution of a water-soluble polymer, and (C) an emulsifying agent; its production; and production of silicone rubber sponge, wherein silicone rubber sponge is obtained by curing the composition into a molding and heating the molding.

Abstract: A silicone rubber sponge-forming emulsion composition is provided that, even when the quantity of reinforcing silica filler is increased, does not exhibit a decline in emulsion stability, avoids defects in cell morphology of the sponge, and avoids a substantial increase in hardness of the sponge. A method of producing a silicone rubber sponge from this composition is also provided. The A silicone rubber sponge-forming emulsion composition comprises (A) 100 weight parts of a liquid diorganopolysiloxane that has at least two silicon-bonded alkenyl groups in each molecule, (B) 1 to 50 weight parts of a reinforcing silica filler comprising (b1) a fumed silica and (b2) a precipitated silica in a (b1)/(b2) weight ratio of 0.01/1 to 30/1, (C) 50 to 250 weight parts of water that contains (c) a smectite clay, (D) 0.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A method of manufacturing a silicone rubber comprises a first stage and a second stage. The first stage comprises (1-1) the step of preparing an aqueous dispersion composed of water that contains a water-soluble polymer (E), a finely powdered silica filler (B), a conductive filler (C), and a non-conductive inorganic filler (D) and (1-2) the step of preparing an aqueous emulsion by stirring and mixing the obtained aqueous dispersion with the following components: an organopolysiloxane (A) that contains silicon-bonded alkenyl groups, an emulsification agent (F), and a curing agent (G). The second stage obtains the silicon rubber either (2-1) by curing the aqueous emulsion prepared in the aforementioned first stage, forming a wet silicone-rubber like cured body, and then removing water from the aforementioned wet silicone-rubber like cured body; or (2-2) by dehydrating and curing the aqueous emulsion prepared in the aforementioned first stage.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A silicone rubber sponge emulsion composition comprising (A) (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule, or a paste-like mixture of (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule and (d) a reinforcing filler, (b) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (c) a platinum catalyst, (B) an aqueous solution of a water-soluble polymer, and (C) an emulsifying agent; its production; and production of silicone rubber sponge, wherein silicone rubber sponge is obtained by curing the composition into a molding and heating the molding.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A method of manufacturing a silicone rubber comprises a first stage and a second stage. The first stage comprises (1-1) the step of preparing an aqueous dispersion composed of water that contains a water-soluble polymer (E), a finely powdered silica filler (B), a conductive filler (C), and a non-conductive inorganic filler (D) and (1-2) the step of preparing an aqueous emulsion by stirring and mixing the obtained aqueous dispersion with the following components: an organopolysiloxane (A) that contains silicon-bonded alkenyl groups, an emulsification agent (F), and a curing agent (G). The second stage obtains the silicon rubber either (2-1) by curing the aqueous emulsion prepared in the aforementioned first stage, forming a wet silicone-rubber like cured body, and then removing water from the aforementioned wet silicone-rubber like cured body; or (2-2) by dehydrating and curing the aqueous emulsion prepared in the aforementioned first stage.