Abstract: Photosensitized silicones having the formula MDnDEmD*pM are provided, wherein M is selected from the group consisting of R3SiO1/2 and R2ESiO1/2; wherein each R is independently selected from the group consisting of monovalent hydrocarbon radicals having from 1 to 30 carbons, and E is an epoxide functionalized substituent selected from the group of epoxy either substitutents having the formula C6H11O2 or the group of alkyl cyclohexeneoxide substituents having the formula C8H13O; D has the formula R2SiO2/2, wherein each R is independently selected from the group consisting of monovalent hydrocarbon radicals having from 1 to 30 carbons; DE has the formula RESiO2/2 wherein R is selected from the group consisting of monovalent hydrocarbon radicals having from 1 to 30 carbon atoms, and wherein E is an epoxide functionalized substituent selected from the group of epoxy ether substituents having the formula C6H11O2 or the group of alkyl cyclohexeneoxide substituents having the formula C8H13O; D* is defined as the rea

Abstract: Carbinol functionalized silicones provide improved release properties to epoxy silicone photo-curable release compositions, by co-photo-curing with the epoxy functionalized silicone.

Abstract: Oxo acids having the formula:HOOC(((CH2).sub.s O).sub.t ((CH2).sub.u O).sub.v R"where R" is a monovalent radical selected from the group consisting of hydrogen, one to forty carbon alkyl, alkylene, alkynylene, aromatic, alkylaromatic or carboxyl groups and the subscripts s, t, u and v are zero or positive subject to the limitation that at least s and t or u and v must be positive reacted with epoxy functional silicones according to scheme: ##STR1## at a molar level that is less than stoichiometric with respect to the epoxy functionality present improve the miscibility of certain photo-catalysts in the epoxy functional silicone.

Abstract: The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical;R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical;provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals;R.sup.2 is a divalent alkylene radical;R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical;n is a positive integer of about 4 to about 400;m is a whole number of from 0 to about 50; and,each of R, R.sup.1, R.sup.2, and R.sup.3, may be unsubstituted or substituted The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.

Abstract: The invention provides a process for producing epoxy-functional silicones by a rhodium metal complex-catalyzed hydrosilation reaction between an SiH-containing silane or siloxane and an olefin epoxide, in the presence of a tertiary amine stabilizer. In practicing the invention, RhCl.sub.3 [(CH.sub.3 (CH.sub.2).sub.3).sub.2 S].sub.3 or PtCl.sub.2 [(CH.sub.3 CH.sub.2).sub.2 S].sub.2 are suitable hydrosilation catalysts and methyldicocoamine, CH.sub.3 (C.sub.18 H.sub.37).sub.2 N, is a suitable stabilizer. The invention also provides for a composition including an SiH-functional silane or siloxane, and a tertiary amine, where the composition is not susceptible to gelation during a hydrosilation addition reaction. The invention further provides a method for stabilizing epoxysilicones both during and after the hydrosilation addition reaction used in their production.

Abstract: A UV curable epoxysilicone blend of an epoxy functional silicone resin containing Q groups, epoxy functional M groups, and at least one member selected from D groups and T groups, at least 5 parts of the sum of M groups and epoxy functional M groups per 10 parts of the sum of Q groups, D groups and T groups; and an epoxy-stopped silicone fluid containing epoxy functional M groups.

Abstract: The invention provides a process for producing epoxy-functional silicones by a rhodium metal complex-catalyzed hydrosilation reaction between an SiH-containing silane or siloxane and an olefin epoxide, in the presence of a tertiary amine stabilizer. In practicing the invention, RhCl.sub.3 [(CH.sub.3 (CH.sub.2).sub.3).sub.2 S].sub.3 or PtCl.sub.2 [(CH.sub.3 CH.sub.2).sub.2 S].sub.2 are suitable hydrosilation catalysts and methyldicocoamine, CH.sub.3 (C.sub.18 H.sub.37).sub.2 N, is a suitable stabilizer. The invention also provides for a composition including an SiH-functional silane or siloxane, and a tertiary amine, where the composition is not susceptible to gelation during a hydrosilation addition reaction. The invention further provides a method for stabilizing epoxysilicones both during and after the hydrosilation addition reaction used in their production.

Abstract: The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical;R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical;provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals;R.sup.2 is a divalent alkylene radical;R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical;n is a positive integer of about 4 to about 400;m is a whole number of from 0 to about 50; and, each of R, R.sup.1, R.sup.2 and R.sup.3 may be unsubstituted or substituted. The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.

Abstract: The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical;R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical;provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals;R.sup.2 is a divalent alkylene radical;R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical;n is a positive integer of about 4 to about 400;m is a whole number of from 0 to about 50; and,each of R, R.sup.1, R.sup.2 and R.sup.3 may be unsubstituted or substituted. The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.

Abstract: An improved method for testing the effect of chemical substances on contact with the skin by use of a protective shield to be worn by laboratory test animals in identification purposes and to prevent removal of a topically applied test substance.