Abstract: An aqueous adhesive composition for bonding a castable urethane to a metal substrate during the curing cycle of the urethane contains (a) a water-soluble or water-dispersible phenoxy resin, (b) a water-soluble or water-dispersible phenolic resole resin; and (c) the balance being water.

Abstract: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.

Abstract: Adhesive compositions based on chlorinated polyolefins having chlorine contents greater than about 60 percent and molecular weights greater than about 500. The adhesive compositions contain the chlorinated polyolefin and a crosslinking agent. The chlorinated polyolefins are advantageous in that they can be prepared in an environmentally acceptable manner and can be utilized as a substitute for the traditional chlorinated natural rubber materials utilized in adhesive compositions without compromising adhesive performance. Preferred chlorinated polyolefins are prepared by a process involving the dispersion and chlorination of high surface area polyolefinic particles in an aqueous medium.

Abstract: An elastomeric composition containing (a) a heat-vulcanizable organic elastomer, (b) a polyorganosiloxane, (c) a polyorganosilses-quioxane, and (d) a compatibilizer. The elastomeric composition can be cured and utilized in applications involving the damping of vibration and noise created by various devices. The elastomer, (a), and the two organo-silicone compounds, (b) and (c), synergistically provide excellent damping characteristics throughout a broad temperature range.

Abstract: A method for obtaining a mechanical lock between two surfaces by providing particulate granules between the surfaces and forcing the surfaces toward one another at a pressure sufficient to embed a substantial number of the particulate granules in both of the surfaces. The method is preferably utilized during the formation of a hem flange, so as to provide immediate handling strength to the hem flange without the need for adhesive compositions.

Abstract: A process for the preparation of compounds of the formula, F(CF.sub.2).sub.a CC1.sub.2 CC1.sub.2 (CF.sub.2).sub.b F where a and b are the same or different and are each an integer .gtoreq.1 (including the novel compound CF.sub.3 CF.sub.2 CC1.sub.2 CC1.sub.2 CF.sub.2 CF.sub.3), which comprises chlorination in the presence of irradiation, of at least one compound of the formula, F(CF.sub.2).sub.n CH.sub.x C1.sub.3-x where n is an integer .gtoreq.1 and x is an integer .ltoreq.3. There is also disclosed a process for utilizing the F(CF.sub.2).sub.a CC1.sub.2 CC1.sub.2 (CF.sub.2).sub.b F compounds to produce F(CF.sub.2).sub.a CH.sub.2 CH.sub.2 (CF.sub.2).sub.b F.sub.3 compounds which comprises contacting hydrogen and the F(CF.sub.2).sub.a CC1.sub.2 CC1.sub.2 (CF.sub.2).sub.b F compounds in the presence of a catalysis which includes at least one Group VIII transition metal. A further aspect of the invention is a novel group of compounds, F(CF.sub.2).sub.a CC1.sub.2 CC1.sub.2 (CF.sub.2).sub.

Abstract: An article including a woven fabric for impeding the passage of air, the fabric having an air permeability of less than about 15 cfm/ft.sup.2 and including at least one multifilament yarn having a longitudinal axis, the yarn being made of high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. Preferably, the high strength filaments are extended chain polyethylene.

Abstract: A pad for protecting at least a portion of the human body against injury including at least three hybrid fabric layers, each hybrid fabric layer comprising at least one high strength fiber having a tensile modulus of at least about 160 grams/denier and a tenacity of at least about 7 grams/denier and at least one ground fiber, wherein the hybrid fabric layer has a construction selected from the group consisting of a weft knit of the high strength fiber and the ground fiber, a warp knit of the high strength fiber and the ground fiber, an inserted warp knit wherein the high strength fiber is inserted into a warp knit of the ground fiber, and a stitchbonded knit.

Abstract: The present invention provides methods and compositions to impart coffee stain resistance to polyamide textile substrates such as carpets. The compositions comprise either (i) a copolymer selected from the group consisting of a hydrolyzed aromatic-containing vinyl ether maleic anhydride copolymer, a half ester of an aromatic-containing vinyl ether maleic anhydride copolymer, and mixtures thereof, or (ii) an aromatic-containing acrylate copolymerized with an acid selected from the group consisting of acrylic acid and maleic acid. The coffee stain-resistant polyamide textile substrates made are also part of the invention.

Abstract: An article which includes at least one layer of a network of high strength fibers, preferably extended chain polyethylene fibers. The fibers of the network are coated with a very low modulus elastomeric matrix material, preferably an acrylic ester copolymer, which has a tensile modulus of less than about 100 psi, a tenacity of less than 450 psi (3105 kPa), a glass transition temperature (T.sub.g) of about -10.degree. C. to about -20.degree. C., and an elongation-to-break of at least about 2000%. The article can further include a second matrix material, preferably made of polyethylene, adjacent to the fiber network layer.

Abstract: A method of imparting acid dye stain resistance to polyamide substrates having improved durability of the stain resistance to detergent washings comprising treating the polyamide substrate with an effective amount of a mixture of phenyl vinyl ether/maleic diacid copolymer and 2-(4-hydroxymethyl-phenoxy)-ethyl vinyl ether/maleic diacid copolymer, wherein the phenyl vinyl ether/maleic diacid copolymer is the stain resist agent, and the 2-(4-hydroxymethyl-phenoxy)-ethyl vinyl ether/maleic diacid copolymer is added to improve the durability of the stain resist agent.

Abstract: An armor system useful, for example, as a shroud, comprising a first pliable, cut resistant fibrous layer and a second pliable fibrous layer is disclosed. The first layer is arranged to receive an impact from a large projectile prior to the second layer and engages the projectile to slow its velocity. The second layer is substantially coextensive with the first and dissipates the incoming energy of the impact to resist complete penetration of the second layer by the projectile, preferably by deforming in response to the impact. Both layers comprise fibers having a tensile modulus of at least about 200 g/d, and an energy-to-break of at least about 8 J/g and a tenacity equal to or greater than about 10 g/d. In another embodiment, the layers are reversed relative to the impact face of the system so that the second layer becomes the first layer and is resistant to projectiles impacting the system, while the first layer becomes the second layer and resists deformation of the system by projectile impacts.

Abstract: This invention relates to a trilobal filament having at least one axially extending void, preferably one axially extending void in each lobe, wherein each lobe has a composite curve profile having a first arm angle .alpha. and a second arm angle .beta., the cross-section has a modification ratio of 2.4 to 5.0, and the total cross-sectional area is 5 to 15 percent void. In a further aspect, this invention is a spinnerette for producing a filament comprising at least one bore group, wherein the bore group has three legs divergent from each other by 130.degree. to 150.degree. and each leg includes two substantially parallel capillary sections and one nipple capillary section which extends to the outermost point of each leg.

Abstract: A method of imparting acid dye stain resistance to polyamide substrates having improved durability of the stain resistance to detergent washings comprising treating the polyamide substrate with an effective amount of a mixture of phenyl vinyl ether/maleic diacid copolymer and 2-(4-hydroxymethyl-phenoxy)-ethyl vinyl ether/maleic diacid copolymer, wherein the phenyl vinyl ether/maleic diacid copolymer is the stain resist agent, and the 2-(4-hydroxymethyl-phenoxy)-ethyl vinyl ether/maleic diacid copolymer is added to improve the durability of the stain resist agent.