Abstract: Applicants' invention is a product that is biocompatible and antimicrobial. According to Applicants' invention, a monomeric quaternary ammonium salt in a solvent is exposed to a polymeric substrate. The quaternary salt in solvent is absorbed by the polymeric substrate and the quaternary salt is polymerized thereby creating a product having quaternary salts impregnated on its surface. The polymerized material also penetrates the surface to some depth forming an interpenetrating network.

Abstract: Applicants' invention is a method for creating an interpenetrating network on the surface of devices and supplies that is biocompatible and antimicrobial. According to Applicants' invention, a polymerizable or monomeric quaternary ammonium salt in a solvent is exposed to a polymeric substrate. The quaternary salt in solvent is absorbed by the polymeric substrate and the quaternary salt is polymerized such that an interpenetrating network is formed with said polymeric substrate.

Abstract: A rigid three dimensional diffraction grating is provided in the form of an ABA block copolymer that forms domains. The A domain of the block copolymer is preferably polystyrene and the B domain of the copolymer is preferably a diene such as polybutadiene or polyisoprene. The molecular weight of the diene can be synthetically controlled to regulate the interelement spacing of the polystyrene domains and control the diffraction obtained from the grating.

Abstract: A high friction brake shoe formulation having a high static friction coefficient in shear of about 1.5 and low adhesion to materials having microscopic pores therein in contact with said brake shoe formulation which comprises a mixture of about 75 phr of neoprene W rubber and about 25 phr of neoprene WHV rubber; a first curing system comprising about 1 phr of a fatty acid, about 5 phr of ZnO, and about 1-3 phr of MgO; and a second curing system comprising about 1.25 phr of sulfur and about 0.6 phr of a sulfur accelerator; together with about 50 phr of a reinforcing agent of N555 or N650 carbon black.

Abstract: Shock absorbing missile launch pad for Mx type missiles having molded ethylene propylene diene terpolymer composition. Pad has curved resilient rubber pad with a Teflon-fiberglass laminate bonded to outer convex surface thereof, and has a support plate bonded to the inner concave surface thereof. Springs are provided to urge pad away from missile at launch to prevent damage to missile.

Abstract: A method of impregnating a flexible, porous cellulosic sheet material involves passing the sheet through a low viscosity resin and across the resonant vibrating surface and through a cavitated zone in close proximity to at least one completely immersed ultrasonic wave generator, operating at a frequency and radiated power level effective to provide a combination vibratory pressure on the resin and cavitation effect causing degassing and heating of the resin, followed by passing the impregnated sheet through a drying means.

Abstract: A novel seal is provided for sealing the annular gap between a tube and a cylinder, such as between a missile and its launch canister, which comprises an annular base for engaging the outer surface of the missile, an annular flap formed integral with the base and extending radially outwardly and downwardly to seal the annular gap between missile and canister, the annular flap having formed thereon means to control the location of buckling around the periphery thereof upon compression of the seal within the gap. The means to control the buckling of the flap include, in one representative embodiment, a plurality of prebuckling webs or, in an alternative embodiment, a plurality of slit pairs regularly spaced around the circumference of the flap, to promote buckling of the seal at predetermined locations.

Abstract: A shock absorber system was designed to absorb the energy imparted to doors in a nuclear reactor ice condenser compartment as they swing rapidly to an open position. Each shock absorber which is installed on a wall adjacent each door is large and must absorb up to about 40,000 foot pounds of energy. The basic shock absorber component comprises foam enclosed in a synthetic fabric bag having a volume about twice the foam volume. A stainless steel knitted mesh bag of the same volume as the fabric bag, contains the fabric bag and its enclosed foam. To protect the foam and bags during construction activities at the reactor site and from the shearing action of the doors, a protective sheet metal cover is installed over the shock absorber ends and the surface to be contacted by the moving door.

Abstract: A composition is disclosed of an N-thiophthalimide, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the N-thiophthalimide in the coating forms particles in the gas stream which are detected by a monitor.

Abstract: A composition is disclosed of a non-metallic, non-ionic organo-sulfur compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats, the organo-sulfur compound in the coating forms particles in the gas stream which are detected by the monitor.

Abstract: A composition is disclosed of a cyanoethylated compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats, the cyanoethylated compound in the coating forms particles in the gas stream which are detected by a monitor.

Abstract: A high compressive strength phenolic resin foam is made by: adding between about 0.5 to 5.0 parts of a dual surfactant system and about 8 to 25 parts of a blowing agent, to 200 parts of a phenolic resole resin to form a pre-mix; agitating this pre-mix with about 20 to 70 parts of an aqueous dual sulfuric-phosphoric acid solution to provide a foaming phenolic material; immediately thereafter pouring or injecting the material into a mold or onto a suitable substrate, to provide a phenolic foam having a substantially uniform compressive strength of at least 40 psi. at between about 20% to 50% compression, at a deflection rate of between about 2 in./min. to about 5 in./min.

Abstract: A composition is disclosed of a non-metallic, non-ionic organo-sulfur compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats, the organo-sulfur compound in the coating forms particles in the gas stream which are detected by the monitor.

Abstract: A rigid, hollow, porous, strongly consolidated reverse osmosis membrane support module having a wall containing bonded, resin coated filler particles, wherein the inside of said wall supports a reverse osmosis membrane, is made by: (A) forming a 100 percent solids, solventless, latent catalyzed resin composition consisting essentially of an admixture of liquid epoxy resin, liquid organic acid anhydride curing agent, liquid diepoxide reactive diluent and quaternary ammonium, phosphonium or arsonium salt latent catalyst; the solventless resin composition having a viscosity of below about 100 cp. at 25.degree.

Abstract: An accelerated melamine-aldehyde resin is made by mixing about 0.001 to about 2% of a free-radical generator into the resin. A laminate is made by preparing a composition of an aldehyde and melamine in a mole ratio of about 1.5 to about 2.0, adjusting the pH of the composition to about 7 to about 9, heating the composition until a sample of it produces a positive hydrophobe in ice water, mixing about 0.001 to about 2% of a free-radical generator and up to about 80 phr of a solvent into the composition, coating paper with the composition to a weight ratio of coated paper to uncoated paper of about 1.2 to about 2.5, drying the composition and partially curing the compositin, stacking the coated paper, and curing the stack under heat and pressure.

Abstract: A composition is disclosed of a blocked isocyanate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the blocked isocyanate in the coating forms particles in the gas stream which are detected by a monitor.

Abstract: A composition is disclosed of a metal dithiocarbamate, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the metal dithiocarbamate in the coating forms particles in the gas stream which are detected by the monitor.

Abstract: An elastomeric seal for sealing a large annular space having a groove on the low pressure side so that the seal will deflect easily when inserting a cylinder from the low pressure side and will withstand high differential pressure without blowing through.