Abstract: An adjuvant for an elastomeric composition is made by mixing methacrylic acid with a suspension of zinc oxide in a liquid medium (such as water or alcohol) in the proportions required to form basic zinc methacrylate. Removal of the liquid from the reaction product and blending of the finely divided reaction product with an elastomer such as cis-polybutadiene yields a compositon which, when cured (for example with an organic peroxide), is hard yet resilient. Molding of the composition in the form of a golf ball produces a durable solid golf ball which has in large measure the play characteristics of a wound golf ball, and substantially retains such characteristics after extended play.

Abstract: Blends of ethylene-propylene-ethylidene norbornene-type of EPDM rubber having a high ethylene content, polyolefin resin (e.g. polypropylene), dodecachloro-octahydro-dimethanodibenzocyclooctane and antimony oxide are flame retardant and have the desirable properties of a thermoplastic elastomer, especially good tensile and elongation retained over a wide range of rubber/resin ratios.

Abstract: Elastomers and plastic polymers are protected against deterioration by certain new substituted haloacetamide antioxidants which are non-migratory and resist extraction by oils and solvents, of the type ##STR1## e.g., 4-anilino-2,2,2-trichloroacetanilide protects NBR even after sequential exposure to oil and to air at elevated temperature.

Abstract: Fungi, bacteria and viruses are controlled, especially on plants, by application of chemicals of the formula: ##STR1## such as 2,3-dihydro-5-phenyl-1,4-dithiin 1,1,4,4-tetroxide, 2-ethyl-5,6-dihydro-3-methyl-1,4-dithiin 1,1,4,4-tetroxide and 2,3-dihydro-5-methyl-2-phenyl-1,4-dithiin 1,1,4,4-tetroxide.

Abstract: Catalytic hydrogenation of o-nitrophenylazohydroxyaryls in an alkaline medium yields hydroxyarylbenzotriazoles; under mild conditions an N-oxide is formed. E.g., 6-tert-butyl-2-(5'-chloro-2'-nitrophenylazo)-p-cresol is hydrogenated to 5-chloro-2-(3'-tert-butyl-2'-hydroxy-5'-methylphenyl)benzotriazole, using platinum sulfide catalyst in the presence of sodium hydroxide: ##STR1## IN THIS CASE A in the starting chemical is 5-chloro, n is 1, Ar is a phenyl nucleus, m is 2, one B is 6-tertbutyl and the other B is 4-methyl; in the product x is zero. Chemicals useful for various purposes, including the stabilization of polymeric materials (e.g., polypropylene, polyvinyl chloride) against light, may be made by the process.

Abstract: An electret made of styrene-type polymer (e.g., polystyrene), having a volume resistivity of at least 10.sup.16 ohm-cm and a glass transition temperature above 50.degree. C, and containing not more than 1% by weight of electron-donor impurities and not more than 0.5% by weight of electron-acceptor impurities, said electret being capable of retaining at least 75% of its charge after exposure to a temperature of 50.degree. C and a relative humidity of 100% for 100 days.

Abstract: An adjuvant for an elastomeric composition is made by mixing methacrylic acid with a suspension of zinc oxide in a liquid medium (such as water or alcohol) in the proportions required to form basic zinc methacrylate. Removal of the liquid from the reaction product and blending of the finely divided reaction product with an elastomer such as cis-polybutadiene yields a composition which, when cured (for example with an organic peroxide), is hard yet resilient. Molding of the composition in the form of a golf ball produces a durable solid golf ball which has in large measure the play characteristics of a wound golf ball, and substantially retains such characteristics after extended play.

Abstract: 1. A latex composition comprising 100 parts of a rubbery polymer selected from the group consisting of polybutadiene and copolymers of butadiene with up to 50% by weight of styrene, 30-60 parts of formamide, and 5-30 parts of N-(ethylene oxide substituted) amide of oleic acid containing about 10 moles of ethylene oxide per mole of amide, the said parts being by weight.

Abstract: 1. A gelled gasoline composition comprising gasoline containing a non-ionic wetting agent and a latex composition, the said latex composition comprising 100 parts of a rubbery polymer selected from the group consisting of polybutadiene and copolymers of butadiene with up to 50% by weight of styrene, 30-60 parts of formamide, and 5-30 parts of N-(ethylene oxide substituted) amide of oleic acid containing about 10 moles of ethylene oxide per mole of amide, the said parts being by weight, the said latex composition being present in such amount that the gelled gasoline contains from 6 to 10% by weight of rubber, based on the weight of gasoline plus latex composition, the non-ionic wetting agent being present in amount of from 0.1 to 5% based on the weight of the gasoline.

Abstract: N-Alicyclic carbamates, useful in making polyurethanes, are prepared by nuclear hydrogenation of an N-aryl carbamate using a group VIII transition metal catalyst. E.g., dimethyl 4,4'-methylenedicarbanilate is contacted with hydrogen and ruthenium catalyst in 2-propanol medium, at 50.degree. C. for 1.3 hours under a pressure of 500-800 psi, to form dimethyl 4,4'-methylenedicyclohexylcarbamate. Acid activation of catalyst is a feature of the invention.

Abstract: A pneumatic tire of the tubeless type, embodying a layer of puncture sealant composition based on:A. a major proportion of a low molecular weight elastomer (e.g., depolymerized natural rubber) in admixture with a tackifying or plasticizing substance (e.g., a resinous reaction product of a mineral oil purification residue with formaldehyde) andB. a minor proportion of a high molecular weight elastomer (e.g., cis-polyisoprene);Containing a crosslinking agent (e.g., tetra-n-butyl titanate) in an amount sufficient to give a partial cure.

Abstract: Elastomeric butadiene-piperylene copolymers in which the butadiene is mainly in high cis-1,4-addition, low vinyl configuration, prepared in solution using iodine-containing catalyst based on organomagnesium compound and titanium tetrahalide. Graft copolymers of resin-forming monomers (e.g., styrene, acrylonitrile) on the butadiene-piperylene elastomer have good low temperature impact strength.

Abstract: Latex compositions with improved water resistance, chemical stability and rheological properties, useful either as the sole binder or as the co-binding agent with pigmentary material in paper coating compositions, made by aqueous emulsion polymerization of a monomeric mixture of, by weight,A. 35 to 75 parts of a monovinylidene aromatic monomer (e.g., styrene),B. correspondingly 65 to 25 parts of an aliphatic conjugated diene, said monomers (A) plus (B) constituting from 75 to 99.5% of the total monomeric mixture,C. 0.5 to 10% of an acryloyloxycarboxylic acid type monomer (e.g., beta-carboxyethylacrylate), and, optionally,D. 0 to 15% of one or more different hydrophilic monomers (e.g., mono-beta-hydroxyethylmaleate).

Abstract: Polymer latex (e.g., butadiene-styrene-itaconic acid copolymer latex) resulting from aqueous emulsion polymerization in the presence of conventional anionic emulsifying agent (e.g., dodecyl benzene sulfonate) has increased particle size and improved stability if a lignosulfonate salt (e.g., sodium lignosulfonate) is further employed as an emulsion modifier in the emulsion polymerization process. The resulting latex is useful for carpet scrim application.

Abstract: 2-Thio, 2-sulfinyl and 2-sulfonyl pyridine N-oxides of the formula ##STR1## ARE USEFUL FOR REGULATING THE NATURAL GROWTH OR DEVELOPMENT OF PLANTS. E.g., the compound wherein n = 1, R.sub.1 = methyl and R.sub.2 = 2,3,4-trimethylphenyl retards cotton and increases root growth of turf.

Abstract: Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising:A. a poly(oxypropylene)-poly(oxyethylene) glycol of molecular weight of from about 1500 to about 4000 containing 15 to 50% by weight oxyethylene groups;B. a "graft" polyol of molecular weight from about 2500 to about 4500, prepared by the in situ polymerization of one or more ethylenically unsaturated monomers in a poly(oxypropylene) and/or poly(oxypropylene)-poly(oxyethylene) glycol containing less than 15% by weight oxyethylene groups;C. methylenebis(4-phenylisocyanate);D. 1,4-butanediol.The invention also relates to this polyurethane elastomer.

Abstract: New chemicals containing two diphenylaminomethane groups, linked together by a moiety other than oxygen, e.g., 1,2-bis[4-(3-methyl-alpha-aminobenzyl)phenoxy]ethane, are effective antimicrobial agents useful as agricultural or industrial fungicides and bactericides.

Abstract: Substituted 2,3-dihydro-1,4-oxathiins of the formula ##STR1## display useful plant growth regulant effects including herbicidal effects. Examples are 2,3-dihydro-5,6-diphenyl-1,4-oxathiin, and 2,3-dihydro-5-(4-methylphenyl)-6-phenyl-1,4-oxathiin 4-oxide. The compounds are useful for the selective control of grasses and as dwarfing agents, as well as for inhibition of vegetative and reproductive axillary growth, and for increasing the sugar content of sugar producing species. A number of these are new compounds.

Abstract: Flame-retarded rubber compositions are disclosed which are economical to produce and which exhibit increased flame-retardance and reduced toxicity. These new compositions comprise acrylonitrile-butadiene rubber, polyvinyl chloride and an iron oxide.

Abstract: Flexible automobile exterior body parts are molded from a polyurethane elastomer prepared from a reaction mixture comprising:A. a "graft" polyol prepared by the in situ polymerization of one or more ethylenically unsaturated monomers in a poly(oxypropylene)-poly(oxyethylene) glycol of molecular weight from about 1750 to about 4000 and containing from 15 to 50% oxyethylene groups by weight,B. methylenebis(4-phenylisocyanate),C. 1,4-butanediol.