Abstract:
There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree. C. of 20 to 500 centistokes. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.
Abstract:
There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree. C of 20 to 500 centistokes. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.
Abstract:
A silicone pressure sensitive adhesive composition containing the condensation product of a silanol-functional silicone resin, wherein the resin contains M structural units according to the formula R3SiO1/2, wherein R is a monovalent hydrocarbon radical, and Q structural units according to the formula SiO4/2 in a ratio of M units to Q units of less than 1.1:1, a silanol-functional polydiorganosiloxane gum, and a crosslinker exhibits high tack and high lap shear strength.
Abstract:
A method for preparing a silicone emulsion, more particularly a method for preparing a silicone emulsion with a low cyclic siloxane level and particle size control.
Abstract:
A method for polymerizing polysilicone precursors via emulsion polymerization to yield transparent oil in water polysilicone microemulsions suitable for personal care applications is disclosed.
Abstract:
The present invention provides a liquid silicone ester having a melting point of up to about 30.degree. C., and comprising (A) units of the general formula R.sub.a R.sup.E.sub.b SiO.sub.[4-(a+b)]/2 or (B) R.sub.x R.sup.E.sub.y SiO.sub.1/2 units and SiO.sub.4/2 units; R.sup.E being an ester-containing organic group. The silicone ester is liquid at ambient skin temperature and has improved workability, improved payout, improved emollient properties, greater solubility in organic compounds, greater substantivity to surfaces and improved water resistance.
Abstract:
Siloxane fluids containing novel siloxane polymers prepared from mixtures of disilanes, disiloxanes and silylmethylenes, and a method for recovering fully alkylated linear and cyclic siloxanes with disilane, disiloxane and silylmethylene bonds, such as from methylchlorosilane residue cleavage bottoms, are disclosed.
Abstract:
An aqueous composition for rendering masonry and wood surfaces water repellent is provided, comprising an aqueous mixture containing an alkali metal aminoorgano-functional siliconate and at least one alkali metal organosiliconate.
Abstract:
Organic pressure-sensitive adhesive and silicone pressure-sensitive adhesive composites have improved shear strength upon the addition of a silicone cross-linking agent.
Abstract:
An emulsion where water is a continuous phase and having a discontinuous oil phase comprising:(a) silicon hydrides containing units of the formula:R.sub.a H.sub.b SiO.sub.(4-a-b)/2 where a may be 0, 1, or 2; b may be 1 or 2; a+b may be 1, 2, or 3; R is a substituted or unsubstituted hydrocarbon radical of 1 to 12 carbon atoms; and(b) hydroxy substituted silicone containing units of the formula:R.sub.c (OH).sub.d SiO.sub.(4-c-d)/2 wherein c is 1, 2, or 3; d is 1 or 2; c+d may be 2, 3, or 4; and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 12 carbon atoms.
Abstract translation:一种乳液,其中水是连续相并具有不连续的油相,其包含:(a)含有下式的单元的氢化硅:RaHbSiO(4-a-b)/ 2,其中a可以是0,1或2; b可以是1或2; a + b可以是1,2或3; R是1至12个碳原子的取代或未取代的烃基; 和(b)下式的羟基取代的含有硅氧烷的单元:Rc(OH)dSiO(4-c-d)/ 2其中c为1,2或3; d为1或2; c + d可以是2,3或4; 且R为取代或未取代的碳原子数为1至12的烃基。