Abstract: A water mattress configuration is provided which includes a tray having a peripheral flange having a downturned edge. A load placed atop the flange causes side walls of the tray to deflect, providing a cushion effect.

Abstract: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.

Abstract: Spin castable mixtures are provided which are useful for applying onto photoresist surfaces to produce a contrast enhancement layer employing .alpha.-alkyl-N-alkyl nitrones in combination with an inert organic binder and solvent. The .alpha.-alkyl-N-alkyl nitrones can be used with 200-300 nanometers UV light.

Abstract: Novel flame retardant polycarbonates are prepared that maintain a T.sub.g and an impact strength similar to that of non-modified polycarbonates. More particular, phosphine oxide containing polycarbonates are prepared that demonstrate improved flame retardancy and the retention of impact strength and glass transition temperature.

Abstract: Improved flame retardance and smoke/heat reduction has been imparted to polyphenylene ethers by blending the polyphenylene ethers with organopolysiloxane fluids having a critical mole % range of chemically combined phenylsiloxane units.

Abstract: Contrast enhancement compositions are provided which can be used to make contrast enhancement layer photoresist composites. The composites can be used to make patterned photoresists under mid-UV light and utilize photobleachable alkylnitrones.

Abstract: Flame retardant graft organopolysiloxane-polycarbonate copolymers are provided which can be made by effecting addition between a silicon-hydride siloxane and an aliphatically unsaturated substituted bisphenol followed by phosgenation of the resulting adduct. Alternatively, direct addition of the silicon-hydride siloxane onto an aliphatically unsaturated substituted polycarbonate backbone also can be effected.

Abstract: Phenol-organopolysiloxane chainstoppers are phosgenated in combination with a bisphenol to make flame retardant organopolysiloxane-polycarbonate triblock copolymers. The phenol-organopolysiloxane chainstoppers can be made by effecting addition between an aliphatically unsaturated phenol and a silicon-hydride organopolysiloxane.

Abstract: Contrast enhancement compositions are provided which can be used to make contrast enhancement layer photoresist composites. The composites can be used to make patterned photoresists under mid-UV light and utilize photobleachable alkylnitrones.

Abstract: Flame retardant halogen-free aromatic polycarbonate copolymer blends are provided of certain triarylsilicon materials, such as hexaphenyldisiloxane with an aromatic polycarbonate copolymer which includes polyester carbonates having condensed silphenylenecarbonyl units. The aromatic polycarbonate blends can be injection molded at thicknesses of 1/16" to provide thermoplastics capable of satisfying the V-O requirements of the UL-94 test.

Abstract: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.

Abstract: There is provided by the present invention aromatic polyester-siloxane block copolymers which can be made by effecting the condensation between tetramethyldisiloxane bisbenzoic acid or acid chloride with a dihydric phenol such as bisphenol A or in combination with a mixture of such tetramethyldisiloxane bisbenzoic acid and aromatic acids, such as terephthalic acid or isophthalic acid. The aromatic polyester-siloxane block copolymers can be used as molding compounds, extruded films, in making composite matrix materials and as flame retardants for aromatic polycarbonates.

Abstract: Flame retardant aromatic polycarbonate compositions are provided resulting from the use of certain poly(arylene silicon) materials in combination with aromatic polycarbonates. Included among the poly(arylene silicon) materials are aromatic polyester silioxanes, aromatic polyimide siloxanes and aromatic polysilphenylenes.

Abstract: A method is provided for enhancing the production rate of arylhydroxylamines by moderated catalytic hydrogenation reactions. Small quantities of acid introduced to the reaction medium doubles the hydrogenation rate of nitroaromatic compounds without a significant loss in selectivity to arylhydroxylamines.

Abstract: A method for preparing nitrones from mixtures of arylhydroxylamines and alkylhydroxylamines containing zinc oxide solids is provided which does not require filtration of the mixture prior to reaction. This is accomplished by introducing a dilute acid solution to the mixture so as to solubilize the zinc oxide powder. The hydroxylamines within solution may be reacted with an aldehyde to produce a nitrone where the dilute acid dissolves the zinc oxide.

Abstract: High molecular weight siloxane polyamic acids and polyimides are prepared by the reaction of dianhydrides with diamines in a polar aprotic solvent, all of the reagents and solvent being highly purified and substantially anhydrous. The polyamic acids may be coated on substrates and baked to form polyimide dielectric layers. When so used, they are free from certain disadvantages of lower molecular weight polymers, especially undercutting and scum formation during photolithography and etching procedures.

Abstract: Photolithographic methods employing a photoresist layer and a contrast enhancing photobleachable layer deposited thereon have certain disadvantages including compatibility and the tendency toward scum formation during stripping of the photobleachable layer. These problems are alleviated by the deposition of an aqueous alkali-soluble polymeric barrier layer such as poly(vinyl alcohol), which is removed simultaneously with the alkaline development step for the photoresist. In a preferred embodiment, the polymeric binder for the photobleachable layer is also water-soluble and is also removed simultaneously with development.

Abstract: Aryl nitrones, of the type used in contrast enhancement photolithography techniques, are stabilized by adding thereto a drying agent such as molecular sieve, silica gel or an alkylalkoxysilane. The resulting compositions are substantially storage stable.

Abstract: A method is provided for making integrated circuit silicon composite die having a hot melt adhesive on the surface of its silicon base. An integrated circuit silicon wafer silicon composite die in wafer form is diced after a hot melt adhesive has been applied onto its silicon base utilizing a spin coating procedure. Integrated circuit silicon composite arrays are also provided by integrally bonding the integrated circuit silicon die onto a carrier substrate.

Abstract: There is provided a photosensitive modified silicone-aromatic polyamide acid convertible to a patterned silicone-polyimide. A silicone-polyamide acid is modified with an isocyanatoalkylacrylate to produce a silicone-aromatic polyamide acid having acrylate alkylamide groups attached to the silicone-aromatic polyamide acid backbone by nitrogen-nuclear bound carbon linkages.