Abstract: A bumper having excellent rigidity, resistance to thermal deformation and to mechanical impact at a low temperature and superior lacquer-bonding property is made from a propylene polymer composition comprising:(A) 55 to 65% by weight of at least one crystalline ethylene-propylene block copolymer in which the content of the polymerized ethylene is in the range of from 5 to 10% by weight, in which the polypropylene component has a fraction thereof insoluble in boiling n-heptane, in an amount of 97% or more, in which a fraction thereof soluble in p-xylene at room temperature, has an intrinsic viscosity of from 3 to 4 determined in decahydronaphthalene at a temperature of 135.degree. C. and which has a melt flow index of from 2 to 10;(B) 30 to 35% by weight of at least one amorphous ethylene-propylene copolymer having an intrinsic viscosity of from 2.0 to 3.5 determined in decahydronaphthalene at a temperature of 135.degree. C., and a Mooney viscosity ML.sub.

Abstract: Cementitious dental compositions suitable for use as luting agents, sedative and insulating bases, temporary and long term restoratives, endodontic sealants, pulp capping materials, tissue packs, impression pastes and adhesives for dental composites and hard tissues comprising a solid phase which includes a metal oxide or hydroxide of tin or a Group II metal and a liquid phase which includes a chelating compound, the chelating compound being an ester of a vanillic acid moiety in which the ester is the product of a reaction of one of an alcohol, a polyhydric alcohol or a polyalkylene glycol and at least one of either vanillic acid or its isomers or homoloynes. The compositions may additionally contain a second chelating compound, Al.sub.2 O.sub.3, an hydrogenated rosin, polymeric materials and polymerizable monomeric materials.

Abstract: A novel 2,2,6,6-tetramethyl-4-piperidyl substituted nitrogen heterocyclic ring compound is provided which is useful as a stabilizer for organic polymers. Organic polymers containing the novel 2,2,6,6-tetramethyl-4-piperidyl substituted nitrogen heterocyclic ring compound exhibit improved resistance to deterioration induced by light, by heat or by a combination of light and heat. The novel 2,2,6,6-tetramethyl-4-piperidyl substituted nitrogen heterocyclic ring compound is prepared by a novel method comprising the step of reacting 2,2,6,6-tetramethyl-4-piperidyl substituted 1,2-aliphatic diamine with a monoaldehyde or dialdehyde.

Abstract: Phosphorous acid esters obtained by reacting bisphenols with phosphorous trihalogenide or triphosphite and optionally or mono- or polyhydroxy compound are especially useful for stabilizing polyamides.

Abstract: The addition of a small amount of a phenol to an ethylene-vinyl alcohol oxygen-barrier layer significantly improves oxygen impermeability under high humidity conditions.

Abstract: This invention relates to improved processes for hydrocarbon resin preparation. More particularly, the invention relates to treating the C.sub.5 and higher mixed thermally soaked hydrocarbon fraction mixture obtained in the steam cracking of propane and ethane with alumina prior to polymerizing the hydrocarbon fraction mixture with a Friedel-Crafts catalyst to form a high softening point hydrocarbon resin. The polymerized resin is then quenched or diluted, washed to remove catalyst residues, dried and hydrogenated to provide high softening point hydrocarbon resins.

Abstract: A polyphenylene ether resin composition having improved heat stability, said composition comprising a polymer matrix composed of a polyphenylene ether resin and a vinyl aromatic resin, and dispersed in the polymer matrix, at least one compound selected from the group consisting of(1). 2-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyanilino)-4,6-di-C.sub.5 -C.sub.15 -alkylthio-1,3,5-triazines,(2). .omega.,.omega.'-thiodi(C.sub.2 -C.sub.6 polymethylene)-bis[3-(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)-carboxylates],(3). N,N'-C.sub.2 -C.sub.10 polymethylene-bis[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxamides], and(4). tetrakis-{methylene-[(3,5-di-C.sub.1 -C.sub.10 alkyl-4-hydroxyphenyl)-polymethylene(C.sub.1 -C.sub.4)carboxylate]}methanes.

Abstract: Oil-in-water emulsions of antioxidants having low volatility and good thermal resistance are provided for treating fibrous reinforcements such as glass fibers. The emulsions are comprised of the antioxidant in an amount of about 5 to about 60 weight percent of the emulsion along with an organic solvent that has a boiling point above the temperature of use or of preparation and is compatible with the antioxidant in an amount in a ratio of about 0.5 to about 1.5 with the antioxidant and one or more emulsifiers selected from the group consisting of anionic, and nonionic having a combined HLB (hydrophilic/lipophilic balance) in the range of about 12 to about 27. The emulsion can also contain a resin carrier such as an epoxy resin and/or a stabilizing agent such as polyalkylene polyol.

Abstract: A polyolefin composition comprising a modified polyolefin obtained by adding an unsaturated carboxylic acid or an anhydride thereof to a polyolefin or mixtures of said modified polyolefin and an unmodified polyolefin, an inorganic filler, one or more nucleating agents or a combination thereof with one or more heat deterioration inhibitors, said polyolefin composition evidencing reduced deterioration by heat or reduction of its mechanical strength during a molding operation.

Abstract: A process is provided for producing a pressure-sensitive carbonless record sheet comprising the steps of preparing a hot melt coating composition, the hot melt coating composition being water insoluble and having a melting point of from about 60.degree. C. to about 140.degree. C. The hot melt coating composition includes a chromogenic material. The chromogenic material is a meltable color developer of the acidic electron accepting type. The hot melt coating composition is heated to a temperature above its melting point and the heated coating composition is applied to a substrate, the coating composition being applied at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coating composition is set by cooling the coated substrate. A novel liquid chromogenic coating composition is produced, the coating composition having a melting point of from about 60.degree. C. to about 140.degree. C.