Abstract: There is provided herein a silicone pressure sensitive adhesive composition comprising (A) a linear olefinically-functional polyorganosiloxane copolymer gum possessing a degree of polymerization in excess of 3,000; (B) a silicone resin including at least one MH unit and at least one Q unit; and, (C) a hydrosilylation catalyst, wherein the composition is in the substantial absence of low molecular weight siloxane having a degree of polymerization of less than 3,000 and wherein the composition has low peel adhesion to and clean removal from a substrate. There is also provided a protective film including the same as well as a method of making the protective film.

Abstract: A silicone composition, especially advantageous for incorporation in a personal care product, includes a silicone resin (a) and a silicone gum (b), the mixture of resin (a) and gum (b) having a softening point of 50° C. or greater and an elastic modulus at ambient temperature of 106 Pa or less.

Abstract: The present invention relates to a process for recovery of a precious metal catalyst from an organosilicon product-containing liquid reaction medium containing precious metal catalyst.

Abstract: The present invention provides for a composition comprising a siloxane having the formula: M1DM2 wherein M1=(R1)(R2)(R3)SiO1/2; M2=(R4)(R5)(R6)SiO1/2 and D=(R7)(Z)SiO2/2 where R1, R2, R3 R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group; Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9-RC, and R10—RZ; RA being an anionic substituent, RC a cationic substituent or RZ a zwitterionic substituent on the D group wherein said siloxane has an enhanced resistance to hydrolysis at a pH below 6 or a pH above 7.5.

Abstract: A packet comprises at least two opposing sidewalls comprising a more rigid flat and a film pouch; and an expressing-shaped first closure end and a second closure end; the sidewalls and closure ends defining an enclosure; wherein at least the more rigid flat comprises a rigid material that can be folded or rolled to compress the enclosure to express a content through the expressing shaped closure end.

Abstract: An asymmetric siloxane is made by reacting a silicone having the formula MHDxM?H where MH is R1R2HSiO1/2, M?H is R4R5HSiO1/2 and x is an integer 0?x?10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound and in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.

Abstract: The present invention is directed to a method of making metal oxide and mixed metal oxide particles. The method includes treating a mixture formed from a metal source, such as metal alkoxide, a surfactant, and a first alcohol in an aqueous media at a very high metal oxide yield. The mixture is reacted using a catalyst to form metal oxide particles having a desired particle size in said mixture. The method is particularly suitable for forming silica particles. The metal oxide particles can then be heat treated to form synthetic fused metal oxides such as, for example, synthetic fused silica.

Abstract: A viscous material processing system has a chamber to hold containers shaped as drums and has a plunger that presses into the interior of the drum to press out its highly viscous contents. The chamber has a hinged enclosure that has a hydraulically activated clamp that connects the two sides of the hinged enclosure that is controlled by a controller in a methodical way. The hydraulically activated clamp can be arranged in series and also has a relief cartridge and pressure sensor to prevent the drum from over pressurized. The processing system also has viscous material compounding system that receives and uses the material provided by the drums.

Abstract: A viscous material evacuator has a chamber to hold containers shaped as drums and has a plunger that presses into the interior of the drum to press out its highly viscous contents. The chamber has a hinged enclosure that has a hydraulically activated clamp that connects the two sides of the hinged enclosure. The hydraulically activated clamp can be arranged in series and also has a relief cartridge and pressure sensor to prevent the drum from becoming overpressurized.

Abstract: A viscous material container evacuator comprises a chamber to hold a container and a plunger axially and slidably accommodated within the chamber to express material from the container; and at least one hinged closure that closes to define the chamber and to securely enclose the container; and at least one motor activated fastener that secures the closure around the container. A method to secure a closure of a viscous material container evacuator, comprises activating a motor drive shaft to drive a connected threaded shaft into a complimentary threaded channel of a clamp block that comprises an opposing nub wall; and driving the threaded shaft to impose upon a first lug of an evacuator and to foreshorten a distance between a head of the threaded shaft and the opposing nub to impose the nub against a second lug of a closure to secure the lugs together to secure the container.

Abstract: A viscous material metering system comprises a cutting apparatus comprising a tensioning fork having a main body diverging into extending tines; a cutting wire tensioned between the tines of the fork; and a driving mechanism operatively connected to the tensioning fork to drive the fork and tensioned cutting wire; and a controller controllably connected to the driving mechanism and having a set of instructions to control the driving mechanism to drive the fork to cut a continuous viscous material into portions of a predetermined size or weight for metering to a viscous material compounding system.

Abstract: A viscous material processing system comprises a feed system controller having a set of instructions to store an input set point weight or amount; sense a progressing weight or amount of material fed by the feed system; compare the progressing weight with the set point weight or amount and terminate feed from the system when the compared progressing weight is substantially equal to the set point weight or amount; and a vicious material compounding system connected to the feed system to receive material fed by the feed system.

Abstract: An asymmetric siloxane is made by reacting a silicone having the formula MHDxM?H where MH is R1R2HSiO1/2, M?H is R4R5HSiO1/2 and x is an integer 0?x?10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound and in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.

Abstract: A composition having a first hydrophobic moiety linked to a spacer, which is linked to a second hydrophobic moiety to form a Gemini surfactant is provided. Each hydrophobic moiety of the foregoing composition may include silicon. A method for linking a first hydrophobic moiety to a second hydrophobic moiety using a spacer to form a Gemini surfactant is provided. A pesticide having an active ingredient and a composition having a first hydrophobic moiety linked to a spacer, which is linked to a second hydrophobic moiety to form a Gemini surfactant is also provided.

Abstract: A viscous material feed system, comprises a feed tube that receives material expressed from a container; and a container evacuator comprising a chamber to hold a container to express material from the container to the feed tube and a plunger comprising a platen axially and slidably accommodated within the chamber, the platen comprising an O-ring fitted against a platen driving face; a full ring with tabs extending to secure the O-ring to the platen driving face with a circumferential surface exposed to the chamber and a vacuum breaker valve to the chamber that seals the platen face when in contact with container material and retains residual material adhering to the platen face when the valve is activated at a termination of a driving cycle of the platen through a container content.

Abstract: A viscous material processing system comprises a feed system controller having a set of instructions to store an input set point weight or amount; sense a progressing weight or amount of material fed by the feed system; compare the progressing weight with the set point weight or amount and terminate feed from the system when the compared progressing weight is substantially equal to the set point weight or amount; and a viscous material compounding system connected to the feed system to receive material fed by the feed system.

Abstract: Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.

Abstract: A viscous fluid dispenser includes a compressible body having a substantially tubular profile and including an interior fluid holding cavity and a head including a cap structure operatively connected to an operative end of the compressible body and a nozzle communicatively connected through the cap structure to form a continuous off-center passage through the head from the interior fluid holding cavity to an exterior fluid expressing side.

Abstract: A heating apparatus for regulating/controlling the surface temperature of a substrate is provided. At least a thermal pyrolytic graphite (TPG) layer is embedded in the heater to diffuse the temperature difference of the various components in the heating apparatus and provide temporal and spatial control of the surface temperature of the substrate, for a relatively uniform substrate temperature with the difference between the maximum and minimum temperature points on the substrate of less than 10° C.