Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting a dielectric enhancement fluid composition into the cable, wherein the composition comprises: (a) one or more organoalkoxysilane functional additives (voltage stabilizer-based, hindered amine light stabilizer (HALS)-based, and/or UV absorber-based); and (b) a catalyst suitable to catalyze hydrolysis and condensation of (a), the injected composition providing for rapid initial permeation of (a) into the insulation, and extended retention of subsequent condensation products of (a) in the insulation. Additionally provided are innovative silyl functional ferrocenes (e.g., containing a ferrocene moiety and a silyl function hydrolysable to silanol) having utility as functional voltage stabilizing additives in the methods.

Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting a dielectric enhancement fluid composition into the cable, wherein the composition comprises: (a) one or more organoalkoxysilane functional additives (voltage stabilizer-based, hindered amine light stabilizer (HALS)-based, and/or UV absorber-based); and (b) a catalyst suitable to catalyze hydrolysis and condensation of (a), the injected composition providing for rapid initial permeation of (a) into the insulation, and extended retention of subsequent condensation products of (a) in the insulation. Additionally provided are innovative silyl functional ferrocenes (e.g., containing a ferrocene moiety and a silyl function hydrolysable to silanol) having utility as functional voltage stabilizing additives in the methods.

Thermoset resin compositions including a compound of formula (I) having a working life and/or a pot life of at least 1 hour are provided. Copolymers prepared from the thermoset resin compositions are further provided. Methods of preparing and polymerizing the thermoset resin compositions are further provided. Delivery devices for preparing thermoset resin compositions are further provided.

Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting into the cable a dielectric gel formulation containing: (a) SiH endblocked polydiorganosiloxane (H(R.sub.2SiO).sub.x(R.sub.2Si)H); (b) polydiorganosiloxane endblocked with unsaturated carbon-carbon functionality; (c) hydrosilylation catalyst suitable to cure (a) and (b); and (d) at least one organoalkoxysilane functional additive (e.g., anti-oxidant-based alkoxysilane, voltage stabilizer-based alkoxysilane, hindered amine light stabilizer (HALS)-based alkoxylsilane, UV absorber-based alkoxysilane, etc.), wherein (a) and (b) are cured post-injection into a non-flowable gel, and wherein (d) diffuses into the insulation. The methods may further comprise a hydrolysis/condensation catalyst compatible with the hydrosilylation catalyst so as not to interfere with the cure of (a), (b) and (c), and/or be compatible with optional siloxane crosslinkers, and/or with optional hydrosilylation inhibitors.

Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting a dielectric enhancement fluid composition into the cable, wherein the composition comprises: (a) one or more organoalkoxysilane functional additives (voltage stabilizer-based, hindered amine light stabilizer (HALS)-based, and/or UV absorber-based); and (b) a catalyst suitable to catalyze hydrolysis and condensation of (a), the injected composition providing for rapid initial permeation of (a) into the insulation, and extended retention of subsequent condensation products of (a) in the insulation. Additionally provided are innovative silyl functional ferrocenes (e.g., containing a ferrocene moiety and a silyl function hydrolysable to silanol) having utility as functional voltage stabilizing additives in the methods.

Compositions are disclosed which include between about 0.05 to about 5 or less wt. % of at least one acrylate monomer based on the total weight of the composition. The acrylate monomer reduces the peak cure temperature, thereby accelerating the rate of cure, without sacrificing completeness of the cure or the release performance of the cured product. The addition of the acrylate monomer also enables a reduction in the amount of costly platinum catalyst required to effectively cure a composition. In addition to the acrylate monomer, the compositions also include a silicone base polymer, a crosslinking agent, and platinum catalyst. The cured compositions exhibit properties useful for incorporation into release liners, adhesive articles, medical products and gaskets.

The present disclosure relates to a composition for a worm wheel having excellent durability and moisture absorption resistance and a worm wheel manufactured using the same. In one embodiment, the composition for a worm wheel includes about 30 wt % to about 70 wt % of a polyketone copolymer and about 30 wt % to about 70 wt % of a polyamide resin, and the composition for a worm wheel has a friction coefficient of about 0.3 or less as measured in accordance with JIS K7218, an abrasion loss of about 0.002 g or less as measured in accordance with JIS K7218, and a moisture absorption rate of about 4% or less as measured in accordance with ASTM D570 (23 C. and 50 RH %).

An addition curable type silicone resin composition includes (a) an organopolysiloxane having an alkenyl group bonded to a silicon atom, (b) an organopolysiloxane represented by the formula, (R.sup.1R.sup.2.sub.2SiO.sub.1/2).sub.m(R.sup.1R.sup.2SiO.sub.2/2).sub.n(R.sup.2.sub.2SiO.sub.2/2).sub.p(R.sup.1SiO.sub.3/2).sub.q(R.sup.2(OR.sup.3)SiO.sub.2/2).sub.r(SiO.sub.4/2).sub.s, (c) an organohydrogen polysiloxane represented by R.sup.4.sub.aH.sub.bSiO.sub.(4-a-b)/2, (d) a platinum group metal catalyst, and (e) a polyorganometallosiloxane containing an SiOCe bond, and an SiOTi bond, and contents of Ce and Ti of which are each 50 to 5,000 ppm, which cures by heating. According to this constitution, it is provided an addition curable type silicone resin composition which can provide a cured product excellent in transparency, and less change in hardness and weight loss under high temperature conditions.

A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of 2,2-dimethylpropane under polymerizable conditions to produce a polyolefin polymer is provided.

A polybutadiene composition which enables the achievement of a rubber material that has excellent crack propagation resistance and a method for producing this polybutadiene composition are provided. A polybutadiene composition is produced by a method that comprises a step Y wherein 1,3-butadiene is polymerized in the presence of 1,2-polybutadiene and a lanthanoid catalyst. A polybutadiene composition which contains 1,2-polybutadiene and 1,4-polybutadiene, and which is obtained by polymerizing 1,3-butadiene in the presence of 1,2-polybutadiene and a lanthanoid catalyst.