Abstract: The invention relates to tubular composite constructions of a composite comprising at least one layer of a prepreg construction of continuous filaments of high modulus fiber in a resin matrix and at least one layer of a thin film of syntactic foam comprising rigid microballoons uniformly dispersed in a matrix resin cocurable with the resin matrix of the prepreg.

Abstract: In opaquing and tinting a contact lens, an opaquing medium is deposited on the lens anterior surface as discrete randomly sized, randomly positioned droplets from a fine mist spray of the medium so that the ultimately formed opaque covering on the lens will correspond in appearance with the random droplet pattern. Mist spray apparatus also is provided.

Abstract: A water resistant, non-gummy hygroscopic, flexible and pliable thin film of 2-hydroxyethyl methacrylate homopolymer deposited on an epidermal surface, a stable emulsion from which the film can be made and a special process for the manufacture of the stable emulsion, utilizing an ammonium salt of a long chain fatty acid as an emulsifying agent therein. The topical application of stable emulsions utilizing an ammonium salt of a long chain fatty acid as an emulsifying agent therein, from which a water resistant, non-gummy, hygoscopic, flexible and pliable thin film of 2-hydroxyethyl methacrylate homopolymer is deposited on an epidermal surface. Special solvent combinations and emulsification techniques are described.

Abstract: A prepreg formulation comprising prepreg filament fibers unidirectionally aligned, and/or woven and nonwoven fibrics, a thermosetting matrix resin and thin surface layers of extremely fine fibers of a thermoformable polymer having at least one of a T.sup.m or T.sup.g greater than about 300.degree. C. or no T.sup.m or T.sub.g and a decomposition temperature greater than about 300.degree. C. The preferred matrix resin is a blend of a thermosetting epoxy resin and an amorphous thermoplastic polymer that has a T.sub.g greater than about 195.degree. C. The invention contemplates the addition of small amounts of a Cr(III) complex and inorganic whiskers.

Abstract: The invention relates to an impact resistent syntactic foam-prepreg composite material comprising syntactic foam of microballoons in a matrix resin bonded to a compatible resin containing carbon fiber prepeg in which the syntactic foam is one or more thin uniform layers located within the composite material sufficiently close to an impact prone surface of the composite to enhance the composite's ability to withstand the impact through such surface.

Abstract: A heat shapeable and deformable composite comprising (i) a thermoplastic layer of a plastic which softens to a flowable condition at temperatures in the range of above about 20.degree. C. to about 110.degree. C. and which is solid and non-flowable at a temperature of about 20.degree. C., adhesively bonded to (ii) a foil layer having a thickness less than that of (i); a process of making the heat shapeable and deformable composite which comprises heat compressing (i) to (ii); and handcrafting the composite by subjecting a composite of (i) adhesively bonded to (ii) to a temperature above the softening temperature of the thermoplastic layer and softening the thermoplastic layer, removing the heated composite from the application of heat such that its temperature is caused to decrease, shaping the composite while the thermoplastic layer is still soft, and cooling the composite to a temperature below the thermoplastic's softening temperature.

Abstract: A contact lens disinfection case includes a hollow cylindrical body with two open ends, and first and second end caps mounted on the open ends of the body to define with the body a fluid-tight housing. A contact lens holding basket is mounted on and is removable with the first end cap. An elongate locking member extends through the hollow body and engages the first and second end caps when the end caps are mounted on the body. The second end cap, when mounted on the body, abuts against the elongate locking member and causes is to engage the first end cap, locking it in place and preventing its removal. When the second end cap is not mounted on the body, the elongate locking member is positionable in non-engagement with the first end cap, allowing the first end cap to be removed from the hollow body.

Abstract: The invention involves modeling and molding extruded compositions comprising previous extruded polycaprolactone extrusion blended with a small amount of a detackifier comprising a fatty acid salt or amide.

Abstract: This invention relates to relatively thick pressure sensitive adhesive films comprising a homogeneous mixture based on 100% of the solids weight of the adhesive film, (i) at least 20 weight % of a low molecular weight resin produced by the polymerization and hydrogenation of styrenic monomer feedstock having a ring and ball softening point of about 10.degree.-45.degree. C., (ii) from about 2 to about 40 weight % of a triblock copolymer with a saturated elastomeric block in the center and a thermoplastic block on each end alone or in combination with a diblock copolymer of a hard thermoplastic block and a saturated, soft ethylene-propylene polymeric block, and (iii) up to about 80 weight % of a mineral oil.

Abstract: A hydration device and kit are provided for effecting the hydration of a dehydrated soft contact lens resident within the cavity of a mold element in which the lens was formed.

Abstract: A feedstock for mesophase pitch is produced by hydrotreating a decant oil until there is from about 2 to about 3 hydrogen atoms per average molecule of the decant oil, and thereafter subjecting the hydrotreated decant oil to distilling to form a pitch.

Abstract: A continuous vapor state process for the preparation of diesters of oxalic acid from a nitrogen oxide, an alcohol and carbon monoxide.

Abstract: A process for low temperature oxydehydrogenation of ethane to ethylene uses an improved supported catalyst produced by impregnating the support with the soluble portion of a precursor catalyst solution and then activating the impregnated support. The activated impregnated support provides good selectivity to ethylene and avoids the problems which can arise from impregnation of the support with the soluble and insoluble portions of a precursor catalyst solution.

Abstract: A moldable and compatible blend of 5 to 95 weight percent of an aromatic polyformal comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR1## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula--CH.sub.2 -- (III)wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R.sub.1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO.sub.2, S or a direct bond, with the proviso that when R.sub.1 is SO.sub.2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrene copolymer or terpolymer and/or vinyl chloride containing polymers.

Abstract: An integrated mobile tank- servicing system for filling, transferring, etc. a flowable medium from one or more tanks; said system having a mobile frame with an adjustable duct(s) for placement in the orifice of a tank and an adjustable walkway associated with the mobile frame.

Abstract: An improved method is provided for treating and processing textile materials which comprises contacting said textile materials with an aqueous composition containing a low-foaming, nonionic surfactive agent having a block-random structure represented by the formula:R--O--Ax--B--Hwhere R is a primary alkyl group having from 7 to 11 carbon atoms; A is oxypropylene groups; x is an integer of from 3 to about 15 and B is a random mixture of oxyethylene and oxypropylene groups having a molar ratio of oxyethylene to oxypropylene of from about 2:1 to about 5:1.

Abstract: The disclosure of this application is directed to unsaturated polyester compositions, containing as a low-profile additive a carboxyl containing thermoplastic polymer of a vinyl ester of an aliphatic, saturated monocarboxylic acid, which have particular utility in molding applications to form aesthetically attractive thermoset articles characterized by excellent physical properties, as for example, impact strength and by excellent surface properties such as excellent smoothness and gloss, excellent receptiveness to paints and excellent reproduction of the surface contours of the mold in which they are formed into shaped, thermoset articles.

Abstract: The disclosure of this application is directed to unsaturated polyester compositions, containing a thermoplastic terpolymer of a vinyl halide monomer, a vinyl ester of a saturated, monocarboxylic acid and as the third component, an unsaturated, dicarboxylic acid or anhydride thereof; or as the third component, a glycidyl ester of an unsaturated, monocarboxylic acid, which can be pigmented with organic and/or inorganic pigments and molded into shaped, thermoset articles such as housings for telephones, automobile heater ducts and the like which are characterized by excellent surface characteristics and color properties.

Abstract: This invention is concerned with producing ethylene and/or 1,2-propylene glycol by the reaction of a non-cyclic oxymethylene compound formed by the hydration or acetalization of formaldehyde with a compound containing one or more of silicon, germanium and tin bonded therein which functions as an addend in a photochemically or thermally induced radical reaction, to form a 1,2-dioxyethylene containing compound, and cleaving such 1,2-dioxyethylene containing compound to form the glycol thereof.

Abstract: Continuous process for producing hydrogels by charging preselected feeds containing poly(oxyalkylene) polyols, organic diisocyanate and catalyst to a reaction zone followed by crosslinking by exposure to atmospheric humidity. Solvents are not used and the hydrogels are shaped in desired configuration as they exit the extruder.