Abstract: Hydrophilic organopolysiloxane gel preparations, methods for making and uses for the hydrophilic organopolysiloxane gel preparations.

Abstract: An aqueous dispersion along with methods for producing and uses for the same. Where the aqueous dispersion includes crosslinkable reactive silicone organic copolymers of ethylenically unsaturated monomers and of ethylenically functionalized silicone polymers and is obtainable by means of radically initiated miniemulsion polymerization in an aqueous medium.

Abstract: Silphenylene polymers along with processes for producing and uses for the same. Where the Silphenylene polymers have the formula (I) RaR1bSi[Y[(SiR2cR3d)e]f]gYSiRaR1b ??(I). At least one olefinically or acetylenically unsaturated radical R, R1, R2 or R3 must be present per silphenylene polymer of the formula (I). Where the sum of all organic radicals bonded to Si atoms through an oxygen atom, based on the sum of all Si-bonded radicals R, R1, R2 and R3 as 100 mol %, must not be more than 10 mol %. Where based on all bridging radicals Y as 100 mol %, at least 55 mol % of radicals Y are a di- to dodecavalent aromatic, alkylaromatic and cycloalkylaromatic radical.

Abstract: A polyarylene ether-polysiloxane copolymer along with processes for preparing and uses for the same. Where the polyarylene ether-polysiloxane copolymer contains olefinically unsaturated groups, of the formula (I) [O3-a/2RaSi—Y1(SiRaO3-a/2)b]c(R1SiO3/2)d(R22SiO2/2)e(R33SiO1/2)f(SiO4/2)g??(I).

Abstract: A process for preparing polyorganosiloxanes and uses for the same. Where the polyorganosiloxanes produced are low-silanol polyorganosiloxanes.

Abstract: A metal-clad laminate includes crosslinkable, organopolysiloxane compounds of the formula (I), [O3-a/2RaSi—Y(SiRaO3-a/2)b]c(R1SiO3/2)d(R22SiO2/2)e(R33SiO1/2)f(SiO4/2)g (I). Based on all SiC-bonded radicals Y, R, R1, R2, and R3 as 100 mol %, at least 0.1 mol % must be aliphatically unsaturated radicals. In the formula (I), a is 0, 1 or 2, where the indices a on either side of the group Y may assume their meaning independently of one another, such that different a may independently of one another be different values within the range of values specified, b is a number having a value from 1 to 11, c is a value from 0.1 to 0.99, d is a value from 0 to 0.8, e is a value from 0 to 0.5, f is a value from 0.01 to 0.6, and g is a value from 0 to 0.2, where c+d+e+f+g=1.

Abstract: A process for producing compositions includes selecting compounds from hydroxy-terminated homopolymeric or copolymeric polyphenylene ethers and phenols and reacting such compounds with chlorosilane of formula (I), R1aR2bSiCl4?a?b (I), alone or in admixture with disiloxane of formula (IV), [R1(3?b)R2bSi]2O (IV), in the presence of water and solvent.

Abstract: Hydrophilic organopolysiloxane gel preparations, methods for making and uses for the hydrophilic organopolysiloxane gel preparations.

Abstract: Storage stable organopolysiloxane gels, preparable in commercial quantities are prepared by the hydrosilylation reaction of a silicone resin containing a hydrosilyatable group, a short chain Si—H-functional silicone, and a long chain Si—H-functional silicone.

Abstract: An aqueous dispersion along with methods for producing and uses for the same. Where the aqueous dispersion includes crosslinkable reactive silicone organic copolymers of ethylenically unsaturated monomers and of ethylenically functionalized silicone polymers and is obtainable by means of radically initiated miniemulsion polymerization in an aqueous medium.

Abstract: Silicone resin having the general formula where R1 are identical or independently different monovalent hydrocarbon radicals or —OH and R2 are identical or independently different monovalent organofunctional hydrocarbon radicals, olefinically unsaturated hydrocarbon radicals or a hydrogen radical. Where R2 is bonded to the silicon atom via a carbon atom and R2 is a hydrogen radical that is bonded to the silicon atom directly. Where c is 0 or 1, (Ic) present in not less than 5 mol %, (Ia) present in not less than 20 mol %, (Ib) present in not more than 20 mol %, (Id) present in not more than 20 mol %. Not less than 1 mol % of units (Ic) contain a radical R2 that is a hydrogen radical and not less than 1 mol % of (Ic) contain radicals R2 that is an olefinically unsaturated hydrocarbon radical and includes pulverulent and fibrous fillers.

Abstract: Crosslinkable silicone resins of high molecular weight are produced in a multistep process by reacting a mixture of at least two different silicone resin intermediates (A) composed of units of the formula Ra(OR1)bO(4-a-b)/2 (1), having a molecular weight Mw of 600 to 2500 to an extent such groups OR1 are reduced by at least 5% resulting alcohol is preferably removed by distillation to obtain silicone resins having a molecular weight Mw between 2500 and 10,000 g/mol, and then the silicone resins are further condensed with polyhydric alcohols in the presence of water to obtain silicone resins having a molecular weight Mw of 5000 to 50,000 g/mol.

Abstract: Storage stable organopolysiloxane gels, preparable in commercial quantities are prepared by the hydrosilylation reaction of a silicone resin containing a hydrosilyatable group, a short chain Si—H-functional silicone, and a long chain Si—H-functional silicone.

Abstract: Unique compositions containing organopolysiloxanes having both silicon-bonded hydrogen and aliphatically unsaturated groups exhibit robust processing characteristics and provide coatings or encapsulations of high transparency which can withstand numerous temperature cycles without failure.

Abstract: Aqueous dispersions of copolymers of ethylenically unsaturated monomers and silicone resins bearing functional groups which are free radically polymerizable are prepared by forming an aqueous miniemulsion of the silicone resin dissolved in an ethylenically unsaturated monomer, the miniemulsion having a D50 droplet size <350 nm, and polymerizing using a free radical polymerization initiator.

Abstract: Addition curable silicone resin compositions have excellent processing characteristics, and can be used to encapsulate electrical and electronic devices.

Abstract: Unique compositions containing organopolysiloxanes having both silicon-bonded hydrogen and aliphatically unsaturated groups exhibit robust processing characteristics and provide coatings or encapsulations of high transparency which can withstand numerous temperature cycles without failure.

Abstract: Addition curable silicone resin compositions have excellent processing characteristics, and can be used to encapsulate electrical and electronic devices.

Abstract: Multistep continuous and semicontinuous hydrolysis and condensation of chlorosilanes with alcohol containing minimal water in a column in a first step to form a silicone resin intermediate, followed by further condensation provides silicone resins in reproducible fashion substantially free of hydrogen chloride, without reactor gelatin.

Abstract: Aqueous dispersions of copolymers of ethylenically unsaturated monomers and silicone resins bearing functional groups which are free radically polymerizable are prepared by forming an aqueous miniemulsion of the silicone resin dissolved in an ethylenically unsaturated monomer, the miniemulsion having a D50 droplet size <350 nm, and polymerizing using a free radical polymerization initiator.