Abstract:
A flame-retarded resin includes at least one resin for which flame retardant capability is desired and at least one triaryl silicon-containing compound (I) as flame retardant in admixture therewith and/or chemically bonded, e.g.. grafted, to the resin.
Abstract:
A composite transparent pressure sensing film is provided having a matrix polymer wherein the matrix polymer is a combination of 25 to 75 wt%of an alkyl cellulose and 75 to 25 wt%of a polysiloxane; and, a plurality of hybrid particles, wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein an electrical resistivity of the composite transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the composite transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.
Abstract:
Disclosed herein is a polyorganosiloxane having the structure of Formula I: wherein, Ri and R2 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical. R3 is an organic UV absorbing group, R4 independently is a direct bond, hydrocarbon radical optionally substituted with oxygen and nitrogen, or a group of Formula 11(a) or Formula 11(b) wherein A and B are a hydrocarbon radical, R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300, y is from 0 to 50 and z is from 1 to 50. The polyorganosiloxane is used to make various copolymers or polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.
Abstract:
A method for preparing an article includes applying a first composition on a substrate to form a first layer, and applying a curing condition to a target portion without applying the curing condition to a non-target portion of the first layer to form a first contrast layer. A second composition is then applied on the first contrast layer to form a second layer, and a curing condition is applied to a target portion without applying the curing condition to a non-target portion of the second layer and first contrast layer to form a second contrast layer. A third composition can optionally be applied and cured on the second contrast layer to form a third contrast layer having a cured and uncured portion in the same manner. The uncured portions of these contrast layers are then selectively removed to prepare the article.
Abstract:
A method for making a dielectric film includes a substrate on which is deposited a siloxane starting material and particles,wherein the siloxane starting material has a siloxane polymer, a siloxane oligomer and/or silane monomers, and wherein the particles have an average particle size of less than 400nm. After deposition, heat and/or electromagnetic energy is applied to the siloxane particle layer so as to cure the layer and form a dielectric film on the substrate. The formed film is is optically transmissive to visible light and transmits at least 80% of the visible light incident thereon, and is electrically insulating and has a sheet resistance of 1000 Ω/sq or more.
Abstract:
Provided is a curable composition comprising specific silicon-containing polymers,at least one vinyl carbosiloxane polymer, and at least a catalyst, cured products obtainable by heating such composition, and the use of said composition as semiconductor encapsulating material and/or electronic elements packaging material. More particularly, the hydrosilylation-curable composition that cures to form polycarbosiloxane products having optical clarity, resistance to high temperature, and very good moisture and gas barrier properties. And disclosed are reliable light emitting devices encapsulated with these polycarbosiloxane compositions.