Abstract: A composition includes an organopolysiloxane component (A) comprising at least one of a disiloxane, a trisiloxane, and a tetrasiloxane, and has an average of at least two alkenyl groups per molecule. The composition further includes an organohydrogensiloxane component (B) having an average of at least two silicon-bonded hydrogen atoms per molecule. Components (A) and (B) each independently have at least one of an alkyl group and an aryl group and each independently have a number average molecular weight less than or equal to 1500 (g/mole). The composition yet further includes a catalytic amount of a hydrosilylation catalyst component (C), and titanium dioxide (TiO2) nanoparticles (D). The composition has a molar ratio of alkyl groups to aryl groups ranging from 1:0.25 to 1:3.0. A product of the present invention is the reaction product of the composition, which may be used to make a light emitting diode.

Abstract: A composition includes an organopolysiloxane component (A) having at least one aryl group and having an average of at least two alkenyl groups per molecule. The composition further includes an organohydrogensiloxane component (B) having at least one of an alkyl group and an aryl group and an average of at least two silicon-bonded hydrogen atoms per molecule. Components (A) and (B) each independently have a number average molecular weight less than or equal to 1500 (g/mole). The composition yet further includes a catalytic amount of a hydrosilylation catalyst component (C), and metal-oxide nanoparticles (D) other than titanium dioxide (TiO2) nanoparticles. The composition has a molar ratio of alkyl groups to aryl groups ranging from 1:0.25 to 1:3.0. A product of the present invention is the reaction product of the composition, which may be used to make a light emitting diode.

Abstract: A composition of the present invention includes an organopolysiloxane component (A) comprising at least one of a disiloxane, a trisiloxane, and a tetrasiloxane, and has at least one of an alkyl group and an aryl group and has an average of at least two alkenyl groups per molecule. Component (A) has a number average molecular weight less than or equal to 1500 (g/mole). The composition further includes an organohydrogensiloxane component (B) having at least one of an alkyl group and an aryl group and having an average of at least two silicon-bonded hydrogen atoms per molecule. Component (B) has a number average molecular weight less than or equal to 1500 (g/mole). The composition yet further includes a catalytic amount of a hydrosilylation catalyst component (C). A product of the present invention is the reaction product of the composition, which may be used to make a light emitting diode.

Abstract: The use of hindered phenol containing anti-oxidants enable arylcyclobutene-based formulations to be cured in oxygen containing environments such as air without unacceptable degradation in key properties of dielectric constant, water uptake, or transmittance.

Abstract: The invention is a composition comprising a curable arylcyclobutene based oligomer or polymer and a dissolution inhibitor which comprises a compound comprising at least two diazonaphthoquinone (DNQ) moieties each of which is pendant from different phenyl groups.

Abstract: The use of hindered phenol containing anti-oxidants enable arylcyclobutene-based formulations to be cured in oxygen containing environments such as air without unacceptable degradation in key properties of dielectric constant, water uptake, or transmittance.

Abstract: The invention is a composition comprising a curable arylcyclobutene based oligomer or polymer and a dissolution inhibitor which comprises a compound comprising at least two diazonaphthoquinone (DNQ) moieties each of which is pendant from different phenyl groups.