Abstract:
A proton exchange membrane comprises a hybrid inorganic-organic polymer that includes implanted metal cations. Acid groups are bound to the hybrid inorganicorganic polymer through an interaction with the implanted metal cations. An example process for manufacturing a proton exchange membrane includes sol-gel polymerization of silane precursors in a medium containing the metal cations, followed by exposure of the metal-implanted hybrid inorganic-organic polymer to an acid compound.
Abstract:
Emulsions are disclosed of dilatant boron crosslinked organopolysiloxanes, coatings prepared from the emulsions, and various substrates impregnated with these coatings. The emulsions may be coated or impregnated onto fabrics to provide an energy absorbing material in Active Protection Systems.
Abstract:
This invention pertains to neutralized silicone elastomer dispersions and methods for making neutralized silicone elastomer dispersions. This invention also pertains to compositions comprising the neutralized silicone elastomer and an acid reactive compound. The silicone elastomer dispersion are neutralized typically by blending the silicone elastomer dispersion with a base such as sodium bicarbonate or by adding a basic neutralizing agent to one or more of the raw materials used to make the silicone elastomer dispersion and removing the basic neutralizing agent by filtration or any other suitable means.
Abstract:
This disclosure relates generally to networks of polymers in fullerene compounds and polymers, to methods of preparing precursors for such networks, and to their subsequent use as low dielectric constant materials in microelectronic devices.
Abstract:
A radiation curable article includes a silicone composition including a silicone oligomer and a photoactive catalyst, wherein the silicone oligomer comprises at least one alkenyl group and at least one hydride group, the radiation curable silicone oligomer having a viscosity of less than about 100,000 centipoise prior to cure. Further included is a method of forming a radiation curable article includes providing a silicone composition including a silicone oligomer and a photoactive catalyst, wherein the silicone oligomer includes at least one alkenyl group and at least one hydride group, the silicone oligomer having a viscosity of less than about 100,000 centipoise prior to cure; and irradiating the silicone composition with a radiation source.
Abstract:
A proton exchange membrane comprises a hybrid inorganic-organic polymer that includes implanted metal cations. Acid groups are bound to the hybrid inorganicorganic polymer through an interaction with the implanted metal cations. An example process for manufacturing a proton exchange membrane includes sol-gel polymerization of silane precursors in a medium containing the metal cations, followed by exposure of the metal-implanted hybrid inorganic-organic polymer to an acid compound.
Abstract:
The present invention relates to methods for forming foamed polymeric articles and articles produced by such methods. In particular, the invention relates to a method of forming a foamed polymeric article comprising a foamed polymeric material (17) sandwiched between two layers (7,13) in a mold (1,9), wherein the polymeric material comprises a chemical blowing agent, and the expansion of the polymeric material during foaming causes the outer layers of the article to deform so as to provide good contact with the surfaces of the mold. The present invention further relates to foamed polymeric articles formed by the method of the invention having complex surface geometry and/or good continuity of the foam.
Abstract:
The present invention relates to a method of producing a silicone powder- containing oil composition, characterized by removing the water from a water-based emulsion of a silicone powder- containing oil composition while stirring this emulsion under reduced pressure with a stirring apparatus that has at least a stirring means that rotates at low speed along the inner wall of a container and a stirring means that rotates at high speed in the interior of the container.