Abstract: Coated synthetic resin lenses having a primer layer of a copolymer of an acrylic and/or methacrylic monomer and an aromatic vinyl compound between the base material and a cured abrasion resistant layer of colloidal silica and an inorganic anti-reflection coating are provided. The cured coat of colloidal silica has a particle diameter between about 1 and 100 millimicrons and is dispersed in a hydrolyzed silane compound. The organic primer coating improves adhesion properties between the base material and the cured abrasion-resistant layer resulting in coated lenses of improved impact resistance.

Abstract: A resin composition for sealing semiconductors which comprises (a) an epoxy resin, (b) a hardening agent, (c) an inorganic filler and (d) a polymaleimide having a specific structure is herein provided. Preferably, the resin composition comprises, as all of or a part of the epoxy resin, a modified epoxy resin composed of (i) a graft polymer of an epoxy resin and a vinyl polymer and (ii) a silicone polymer in an oily state or as particles having an average particle size of not more than 1.0 micron, which are uniformly dispersed in the graft polymer. The resin composition for sealing semiconductors exhibits a low thermal expansion coefficient and a low elastic modulus, generates low stress when thermal shock is applied thereto and exhibits high heat resistance during soldering even after moisture absorption.

Abstract: The thermosetting powder coating composition which has good stability and good physical properties, such as appearance, flexibility, hardness, solvent resistance and corrosion resistance, is disclosed. The composition comprises a co-reactable particulate mixture of a carboxylic acid group-containing polymer, a polyepoxide, and a beta-hydroxylalkylamide.

Abstract: A thermoplastic blend useful for the preparation of molded articles comprising a thermoplastic polymer and a tapered triblock elastomer of a monovinylidene aromatic monomer and butadiene having a melt index (condition 200/5.0 ASTM method D1238-82) of 0.5 to 60 and an average molecular weight from 50,000 to 135,000.

Abstract: An adhesive composition for roofing such as shingles is disclosed which is composed of a hard asphaltic bitumen fraction having a penetration number at 77.degree. F. of from 0 to 30 dmm and a softening point of from about 150.degree. to 220.degree. F. and an elastomeric composition composed of a thermoplastic elastomer and a plasticizer wherein the overall adhesive composition has a penetration number of from 30 to 100 dmm at 130.degree. F. and a softening point of 140.degree. to 230.degree. F. The inventive composition is self-sealing and exhibits excellent squash resistance, low temperature properties and resistance to blowoff. The composition can be used with shingles as well as other types of roofing coverings.

Abstract: An antistatic polymeric composition consisting of at least one antistatic additive of an ethylene oxide copolymer in the range of from about 3% to about 30% by weight and being a solid, nonionic material and having a dilution solution viscosity of greater than 0.25 g/ml and preferably having an average molecular weight greater than 20,000; and a polymeric material in the range from about 70% to about 97% by weight. The ethylene oxide copolymer comprises ethylene oxide in the range of from about 5% to about 95% by weight and at least 1 comonomer selected the group consisting of cyclic ethers, cyclic acetals, and cyclic esters, in the range of from about 95% to about 5% by weight. The polymeric material can be any thermoplastic, thermoplastic elastomer, or elastomer including ABS, ASA, polyamides, PBT, PET, PETG, PMMA, PUR, PVC, CPVC, PC, POM, POP, SMA, and SAN.

Abstract: The present invention relates to thermoplastic compositions formed from discarded rubber products. Thermoplastic compositions in accordance with the present invention comprises rubber particulate having a size less than about 10 mesh, a thermoplastic material, and at least one coupling agent with the rubber particulate and the thermoplastic material being present in a weight ratio in the range of from about 1:9 to about 9:1 and the at least one coupling agent being present in an amount less than about 3% by weight of the material to be coupled to. A process for forming the thermoplastic compositions is also described.

Abstract: A hot melt wax composition and process for producing said hot melt wax composition are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a blend of a recrystallized heavy intermediate wax, a polymeric hydrocarbon compound, a tackifier resin and a phenolic anti-oxidant.

Abstract: The present invention relates to a compatibalizing agent useful in compatibalizing a substantially non-polar compound, such as asphalt, with a substantially polar organic compound, such as an isocyanate prepolymer. The compatibalizing agent consisting of a polymer unit, or of two such units being either identical or different linked together by an ester, carbon or ether bond, said unit having the following formula:CH.sub.3 --(C.sub.n H.sub.2n)--R.sub.1wherein:n is 4 or more, andR.sub.1 is COOH, COO.sup.- M.sup.+, COOR.sub.2 or R.sub.2,wherein:M is a metal, andR.sub.2 is a substantially saturated organic chain having a backbone substantially comprising carbon-carbon, carbon-oxygen, or carbon-nitrogen linkages, or combinations thereof, wherein the backbone's pendent constituents are either --H or --OH and wherein at least one pendent constitutent is --OH.

Abstract: A process of using compositions comprising certain thermoplastic elastomeric polymers for damping and damping compositions comprising soft thermoset polymer containing microscopically discrete segments of said thermoplastic elastomeric polymers.

Abstract: A stable fluid acidic concentrated aqueous slurry of positively charged particles of a calcined kaolin clay pigment wherein the dispersant is a water-soluble organic cationic material, such as a quarternary ammonium polyelectrolyte.

Abstract: A pneumatic tire with tread composed of a sulfur cured rubber comprised of, based on the rubber (A) cis 1,4-polyisoprene; (B) at least one of isoprene/acrylonitrile rubber and butadiene/acrylonitrile rubber and, optionally; (C) at least one additional rubber which includes cis 1,4-polybutadiene characterized in that the cis 1,4-polybutadiene is a primary rubber constituent.

Abstract: A reinforced rubber composition comprising 100 parts by weight of a vulcanizable rubber including 1 to 100 parts by weight of fine short fibers of a fiber forming polyamide buried therein, and the polyamide and the rubber are bonded through a silane coupling agent. This reinforced rubber composition is suitable for use as automobile tires and the parts thereof and rubber products such as, rubber houses, rubber belts, rubber parts for automobiles, and footwear materials.

Abstract: A modified epoxy resin composition for use in making a printed circuit board comprising: (1) a modified epoxy resin obtained by reacting (a) a low molecular weight epoxy resin having at least two epoxy groups which have the following formula, ##STR1## (b) a mono-nucleus chain extending agent containing N-heterocyclic fatty groups and at least two active hydrogen atoms and represented by the formulas, ##STR2## and (c) at least one catalyst for catalyzing the reaction between components (a) and (b).

Abstract: An improved modified sulfur concrete product is provided in the form of discrete, self-sustaining pellets of modified sulfur concrete which can be shipped and stored for indefinite periods and remelted to yield useable concrete. The pellets are preferably formed by first preparing a quantity of hot modified sulfur concrete (74), followed by passing such concrete (74) into a pelletizing chamber (12) equipped with an elongated auger-type, axially rotatable mixing element (14) and apparatus (16) for the introduction of pressurized air and water into the chamber (12) in the form of a spray. Supplementary pressurized air may advantageously be added at spaced points along the length of the chamber (12).

Abstract: Properties and cold applicability of asphalt elastomer compositions are substantially improved by utilizing cyclohexanone therein as a co-solvent.

Abstract: Recyclable hot melt adhesive compositions suitable for plastic bonding may be prepared from styrene-ethylene-butylene-styrene tri-block and/or styrene-ethylene-butylene di-block copolymers which are tackified with at least one hydrogenated resin based on alpha-methyl styrene, vinyl toluene, styrene, coumarone-indene, dicyclopentadiene or mixtures thereof, optionally containing small amounts of white mineral oil or similar diluent. In addition, the adhesive may or may not include minor amounts of the above-described pure monomer resins (specifically composed of styrene, alpha methyl styrene or vinyl toluene or mixtures thereof) in their non-hydrogenated form to serve as end block reinforcing resins.

Abstract: Thermoprocessible aramid matrix polymer based composites have high flex and short beam shear strengths and low moisture uptake.

Abstract: Disclosed is an ungelled, modified chlorinated polyolefin resin suitable for providing a highly adherent, solvent resistant film on a thermoplastic polyolefin substrate. The modified chlorinated polyolefin resin is prepared by grafting an unsaturated polycarboxylic acid and/or an unsaturated acid anhydride onto a chlorinated polyolefin resin to form an acid- and/or anhydride-modified chlorinated polyolefin resin. The resulting acid- and/or anhydride-modified chlorinated polyolefin resin is reacted with an organic monohydric alcohol to form an esterified product containing acid functionality. The resulting esterified product is reacted with a polyepoxide to form the ungelled modified chlorinated polyolefin resin.Also disclosed is a method of preparing an ungelled modified chlorinated polyolefin resin of the invention, a coating composition containing a resin of the invention, and a method of forming a hardened film from the coating composition on a thermoplastic polyolefin substrate.

Abstract: A pressure-sensitive adhesive meeting Underwriter Laboratories, Inc. 181A requirements and specifications for foil tapes for use with rapid fiberglass air ducts consisting essentially of:(1) 100 phr of a block copolymer consisting of from 75 to about 100 parts be weight of a styrene-isoprene-styrene triblock copolymer and from 0-25 parts by weight of a member selected from the group consisting of a styrene-isoprene diblock copolymer, a styrene-butadiene-styrene triblock copolymer and a mixture of styrene-isoprene diblock copolymer and styrene-butadiene-styrene triblock copolymer;(2) from about 60 to about 110 phr of rubber phase associating resin;(3) from about 5 to about 30 phr of a polyestyrene phase associating resin;(4) an effective amount of flame retardant;(5) an effective amount of antioxidant for the rubbery isoprene moiety; and(6) a crosslinking system for crosslinking the isoprene moiety;and foil tapes including same.