摘要:
Method and apparatus for cutting high viscosity liquid material, said apparatus comprising a cylinder divided into upper and lower tanks by a partition with a central discharge opening, a moveable and elevatable liquid supply pipe with a distal end positioned opposite the discharge opening, the liquid supply pipe being mounted so that it can be raised until its distal end contacts the partition around the discharge opening, and then lowered until there is no contact, means for raising and lowering the liquid supply pipe, the upper tank having peripheral injection ports for injecting a low viscosity liquid into the upper tank, means for feeding high viscosity liquid material into the lower tank and flowing it into the upper tank, means for feeding low viscosity liquid into the liquid supply pipe and for feeding low viscosity liquid into the peripheral injection ports, the high viscosity liquid material flowing from the lower tank into the upper tank when the liquid supply pipe is lowered, the high viscosity liquid material being pushed upwardly into the upper tank by the low viscosity liquid when the liquid supply pipe is raised, whereby the high viscosity liquid material being pushed upwardly in the upper tank is cut into blocks by the low viscosity liquid being injected into the upper tank.
摘要:
Novel hollow silicone resin particles, having an average particle size of 0.1 to 100 &mgr;m are disclosed. The silicone resin particles comprise a skin formed from thermoplastic silicone resin configured in the shape of a hollow capsule. The hollow thermoplastic silicone resin particles are prepared by spraying a dispersion of water and thermoplastic silicone resin dissolved in solvent into hot gas. The hot gas evaporates the solvent and water and at the same time causes solidification of the thermoplastic silicone resin while it is in the spray state, so as to form a plurality of hollow particles therefrom.
摘要:
Novel hollow silicone resin particles, having an average particle size of 0.1 to 100 .mu.m are disclosed. The silicone resin particles comprise a skin formed from thermoplastic silicone resin configured in the shape of a hollow capsule. The hollow thermoplastic silicone resin particles are prepared by spraying a dispersion of water and thermoplastic silicone resin dissolved in solvent into hot gas. The hot gas evaporates the solvent and water and at the same time causes solidification of the thermoplastic silicone resin while it is in the spray state, so as to form a plurality of hollow particles therefrom.
摘要:
A silicone rubber particulate composition useful as an additive for cosmetics, rubbers, resins and paints is disclosed, said composition comprising:(A) a silicone rubber particulate having an average particle size of 0.1 to 1,000 .mu.m;(B) a water-absorptive resin particulate having a water-free average particle size of 0.1 to 1,000 .mu.m; and(C) water,wherein said component (B) is present at a level of 0.01 to 5 weight percent measured on a water-free basis relative to component (A) and said water is present at a level of 10 to 10,000 weight parts for each 100 weight parts of component (B).
摘要:
A method and apparatus is provided for the preparation of liquid dispersions comprising the uniform dispersion of a viscous liquid formed of strands, threads or columns, such as a silicone polymer in water.
摘要:
A silicone rubber particulate composition useful as an additive for cosmetics, rubbers, resins and paints is disclosed, said composition comprising:(A) a silicone rubber particulate having an average particle size of 0.1 to 1,000 .mu.m;(B) a water-absorptive resin particulate having a water-free average particle size of 0.1 to 1,000 .mu.m; and(C) water,wherein said component (B) is present at a level of 0.01 to 5 weight percent measured on a water-free basis relative to component (A) and said water is present at a level of 10 to 10,000 weight parts for each 100 weight parts of component (B).
摘要:
Method for preparation of an aqueous emulsion from a curable silicone composition consisting of (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) an organohydrogensiloxane, and (C) a curing catalyst, said method being characterized by (i) continuously supplying component (A), component (B) and component (C), or a mixture of components (A) and (B) and component (C) through individual inlet ports into a continuous mixer and mixing said components at a temperature not exceeding 10° C., (ii) continuously supplying the obtained mixture and (D) an aqueous solution of a surface-active agent to an emulsifier, and emulsifying the components at a temperature not exceeding 20° C. An apparatus for the preparation of an aqueous emulsion of a curable silicone composition comprising of a continuous mixer for mixing components (A) through (C), a distribution unit connected to the lower part of the mixer, and an emulsifier. Method for preparation of a suspension of cured silicone particles by allowing such emulsion to stand at room temperature, or heating the aforementioned emulsion.
摘要:
Method for preparation of an aqueous emulsion from a curable silicone composition consisting of (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) an organohydrogensiloxane, and (C) a curing catalyst, said method being characterized by (i) continuously supplying component (A), component (B) and component (C), or a mixture of components (A) and (B) and component (C) through individual inlet ports into a continuous mixer and mixing said components at a temperature not exceeding 10° C., (ii) continuously supplying the obtained mixture and (D) an aqueous solution of a surface-active agent to an emulsifier, and emulsifying the components at a temperature not exceeding 20° C. An apparatus for the preparation of an aqueous emulsion of a curable silicone composition comprising of a continuous mixer for mixing components (A) through (C), a distribution unit connected to the lower part of the mixer, and an emulsifier. Method for preparation of a suspension of cured silicone particles by allowing such emulsion to stand at room temperature, or heating the aforementioned emulsion.
摘要:
A continous mixing apparatus has an upper rotary disk and a lower rotary disk able to rotate independently of one another. A plurality of scrapers are attached to the upper and lower sides of the upper and lower rotary disks. Scrapers on the lower side of the lower rotary disk have a notch enabling the scrapers to pass over a lower ring plate in the mixer. Material to be mixed is supplied to an upper portion of the mixer, and the product is discharged from a lower portion of the mixer. The device is constructed to enable any subsequently replenished liquids to not rise to the top of the mixing apparatus. The device produces a mixture that is uniform, highly stable, and that has a small particle size or a low viscosity which can be manufactured quickly.
摘要:
Method for preparation of an aqueous emulsion from a curable silicone composition consisting of (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) an organohydrogensiloxane, and (C) a curing catalyst, said method being characterized by (i) continuously supplying component (A), component (B) and component (C), or a mixture of components (A) and (B) and component (C) through individual inlet ports into a continuous mixer and mixing said components at a temperature not exceeding 10° C., (ii) continuously supplying the obtained mixture and (D) an aqueous solution of a surface-active agent to an emulsifier, and emulsifying the components at a temperature not exceeding 20° C. An apparatus for the preparation of an aqueous emulsion of a curable silicone composition comprising of a continuous mixer for mixing components (A) through (C), a distribution unit connected to the lower part of the mixer, and an emulsifier. Method for preparation of a suspension of cured silicone particles by allowing such emulsion to stand at room temperature, or heating the aforementioned emulsion.