Abstract: A method for producing mineral fibers includes centrifuging mineral fibers from one or more rotary mineral fiber spinners to establish one or more downwardly moving veils of mineral fibers positioned above a collecting surface, centrifuging organic fibers from molten organic material using one or more rotary organic fiber spinners to establish one or more downwardly moving veils of organic fibers positioned above the collecting surface, the veils of mineral fibers being generally colinear with the veils of organic fibers, the veils of organic fibers alternating with the veils of mineral fibers to integrate the organic material and the mineral fibers, and collecting the integrated organic material and mineral fibers on the collecting surface.

Abstract: Organopolysiloxane compositions which cure by the addition reaction of silicon-bonded lower alkenyl radicals with silicon-bonded hydrogen atoms and which exhibit improved adhesion to a variety of substrates. The compositions comprise an adhesion promoting mixture comprising an epoxy-functional compound, a compound having at least one hydroxy group and in the same molecule at least one substituent selected from a group consisting of silicon hydride, alkenyl, and acryl, and an aluminum compound or zirconium compound. Compression set of the cured organopolysiloxane compositions is not significantly effected by the adhesion promoting mixture.

Abstract: A method for the detection of an analyte in a fluid sample using liposomes encapsulating acridinium esters (lumisomes). Hydrophilic polysubstituted aryl acridinium esters are useful as chemiluminescent markers and can be encapsulated within liposome vesicles without significant leakage of the esters from the vesicles. The lumisomes can be coupled to molecules with biological activity, such as antigens, antibodies, and nucleic acids, and used in luminescent assays.

Abstract: A method of hydrophobing fillers such as inorganic pigments, metal oxides, metal hydroxides, and silicate minerals, involves contacting a filler with an oxa-silacycloalkane, until hydroxyl functionality on the filler is replaced with carbinol functionality (i.e. .tbd.C--OH). The preferred oxa-silacycloalkane is 2,2,4-trimethyl-1-oxa-2-silacyclopentane.

Abstract: A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except those portions which define a working electrode and at least one second electrode. The working electrode may be defined by an open printed region of the dielectric, or by a needle-punched or laser-burned hole or opening in the dielectric which exposes a small region of one of the conductive strips. A solid electrolyte contacting the electrodes is covered by a semipermeable membrane which may comprise an acrylonitrile butadiene copolymer or an acrylate-based copolymer. A sample chamber is defined by the membrane, a cover member, and a gasket therebetween, and has a volume of from about 1 to about 2 .mu.m. The gasket is formulated from the highly cross-linked polymerization product of epichlorohydrin. All sensor components are selected such that a sensor operable for at least 2 days under normal conditions is produced.

Abstract: A one-step process for preparation of organosilanes. The process comprises contacting magnesium metal with a mixture comprising an organic halide and a halosilane in a co-solvent comprising about one to 15 moles of a dialkyl ether comprising less than seven carbon atoms, per mole of the allyl chloride; and about 0.05 to less than two moles of a liquid aromatic hydrocarbon solvent per mole of the dialkyl ether; at a temperature within a range of about 5.degree. C. to 200.degree. C.

Abstract: A lubricant composition is disclosed which provides good antiwear characteristics in air at .gtoreq.100.degree. C. and exhibits a low friction coefficient, said composition comprising:(A) a fluorosilicone oil;(B) at least one compound selected from the group consisting of ferrocene, 1,1'-bis(diphenylphosphino) ferrocene and an N,N-disalicylidene-diaminoalkane in which the alkane portion has 3-6 carbon atoms; and(C) at least one phosphorous compound selected from the group consisting of triphenylphosphine, tri-o-tolylphosphine, 1,5-bis-diphenylphosphinopentane and a dialkyldithiophosphate salt in which the alkyl groups have 1-14 carbon atoms, wherein said components (B) and said component (C) is each present at a level of 0.01 to 0.3 percent based on the total weight of said composition.

Abstract: A method for controlling the direct process to vary the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product. The method comprises contacting an alkyl chloride with silicon metalloid in the presence of a catalytic amount of a catalyst comprising 0.5 to 10 weight percent copper, 5 to 200 ppm tin, 25 to 2,500 ppm phosphorous, and greater than zero to less than 50 ppm zinc, where the concentration of each of the catalyst components is based on the weight of the silicon, at a temperature within a range of about 250.degree. C. to 400.degree. C. The present inventors have found that by controlling the zinc concentration the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product can be varied.

Abstract: A method and device is disclosed for distributing a veil by applying low frequency sound to at least one portion of the veil, and causing the veil to deviate in its generally downward direction of travel. In its simplest embodiment, the lapping device of the present invention includes one low frequency sound generator having one resonator tube shaped for emission of low frequency sound and having an open end from which sound may be emitted to a portion of a veil. Preferably, the lapping device has two resonator tubes whose open ends are in spaced, opposing relationship, and in the preferred method low frequency sound is alternately applied at generally opposing locations near the veil, causing portions of the veil to deviate in generally alternate directions in its direction of travel.

Abstract: A hollow, glass, building block contains elastomeric or gel-like cured polydiorganosiloxane composition product being optically at least translucent and present in an amount sufficient to fill completely the available interior volume of the building block providing a space adjacent to the cured product to permit expansion of the cured product relative to the block during changes in temperature. This glass building block has improved fire resistance.

Abstract: The present invention relates to compositions comprising vinyl ether functional siloxanes and aromatic iodonium salt or aromatic sulfonium salt photoinitiators which cure upon exposure to ultraviolet or electron beam radiation. The present invention further relates to use of these compositions in pressure sensitive release applications.

Abstract: Overclad fiber optic couplers are made by inserting the uncoated portions of a plurality of optical fibers into the bore of a glass tube, collapsing the tube midregion onto the fibers and stretching the central portion of the tube midregion. The present method utilizes a glass tube the bore of which includes a circular portion and a recess. A plurality of optical fibers are sequentially inserted into the tube by threading the coated end into the circular bore portion until the uncoated portion of fiber is centered in the tube. The uncoated portion of fiber is then transferred laterally into the bore recess. After all fibers have been threaded into the circular bore portion and transferred to the recess, a filler fiber is inserted into the circular bore portion. The resultant coupler exhibits low excess loss.

Abstract: A fiber insulation product is provided which includes a fibrous material having a binder dispersed throughout. The binder comprises an inorganic material having thermoplastic properties. Preferably, the binder is a low-melting glass composition or a glass-forming compound such as, for example, boric acid. The insulation product is ideally suited for use in insulation panels having a compressed board encased in a evacuated jacket, high temperature, low smoke, odorless and building insulation applications.

Abstract: Apparatus is provided for extending the life of spinners by means of reinforcement which includes a plurality of arms secured to the bottom wall of a spinner either individually or via an annular plate from which the arms extend. The reinforcement applies a radially inward force on a flange extending from the top or center of an outer sidewall of the spinner. The arms exert the radial force as the result of offset cams, due to a prestressed condition which is released after the reinforcement is installed in a spinner or otherwise. If the spinner includes both a center flange and an upper flange, the reinforcement may be installed to engage the center flange with gussets interconnecting the center flange and the upper flange at least at locations corresponding to the reinforcement to thereby provide reinforcement for both flanges.

Abstract: This invention is directed to the production of spontaneous essentially non-crystalline opal glasses exhibiting a very dense, milky-white appearance and excellent resistance to weathering and attack by alkaline detergents consisting essentially, expressed in weight percent on the on the basis, of 1.9-3.6% K.sub.2 O, 4.2-7.3% Na.sub.2 O, 0.2-3% Li.sub.2 O, 0-1.2% MgO, 0-4.9% CaO, 0-12.5% BaO, 0-0.1% NiO, 0.4-4% ZnO, 5.3-9.6% B.sub.2 O.sub.3, 8.8-13.5% Al.sub.2 O.sub.3, 57.2-64.4% SiO.sub.2, and 1.0-2.2% F., where the sum of (MgO+CaO+BaO) is preferably in the range of 4.5-12.5%.

Abstract: A user friendly dispensing device for viscous materials has an applicator nozzle designed to dispense a bead of material from a squeeze-tube into cracks and corners by being dragged along a surface rather than being pushed. The device has a unique ergonomic shape allowing for ease of application and extrusion of viscous materials such as sealants and caulks squeezed out of the tube. The applicator nozzle is made of plastic; while plastic, a plastic laminate, or metal, is used to make the squeeze-tube.

Abstract: A particulate foam control agent comprises 1 to 30 parts silicone antifoam, 70 to 99 parts zeolite carrier, 1 to 60% of the antifoam of an organopolysiloxane polyoxyalkylene copolymer, deposited onto the zeolite carrier not later than the antifoam and 1 to 40 parts by weight of a polycarboxylate-type binder or encapsulant. This combination give good release in early stages, storage stability and powder characteristics.

Abstract: Fiber-reinforced ceramic matrix composites are fabricated by a process wherein a fiber reinforcement material, preferably in the form of a fiber array or ribbon of parallel-aligned monofilament fibers, is combined with multiple sheets of ceramic matrix material, preferably in the form of thin flexible ceramic tape. A preform consisting of a layered assembly of the fibers and ceramic matrix sheet is consolidated with heat and pressure into an integral, substantially void-free ceramic matrix composite wherein the matrix has fully penetrated and infiltrated the fiber array and wherein the fibers are disposed in precise alignment and position, following the fiber alignment in the preform.

Abstract: A fluid delivery system for aspirating liquid from a bottle and conveying the liquid to an analytical instrument while allowing ambient air or gas to enter the bottle to replace the aspirated liquid. The bottle opening is sealed by a valve. A tube extends from the valve to the liquid within the bottle. A coupling component is removably connected to the analytical instrument anti to the valve for operatively connecting the instrument to the tube.

Abstract: A system and method are disclosed for converting exhaust gas which comprises NO.sub.x, CO, and hydrocarbons, to innocuous products. Exhaust gas is contacted in undiverted flow with a zeolite suitable for adsorption of hydrocarbons, and with a main catalyst suitable for conversion of NO.sub.x, CO, and hydrocarbons to innocuous products. Adsorption occurs when the temperature of the zeolite is suitable therefor. Conversion occurs when the temperature of the main catalyst is suitable therefor. The zeolite and main catalyst are connected directly to one another, that is, in-line, without by-pass valving. The zeolite can be Y zeolite, Beta, ZSM-5, and combinations thereof, and has a SiO.sub.2 to Al.sub.2 O.sub.3, mole ratio of no greater than about 200, and is ion exchanged with a metal which can be rare earth, chromium, and combinations thereof.