Abstract: A method for preparing polyurethane by spraying a mixture of(a) polyurethane prepolymer, and(b) curativewherein (a) and/or (b) contain a lactone as viscosity modifier.

Abstract: The viscosity of synthetic and/or natural elastomers is markedly reduced by incorporation of a particulate, finely-divided basic zinc methacrylate-type adjuvant, without adversely affecting the physical properties of the final vulcanizates. This viscosity reduction allows higher levels of fillers and other rubber compounding materials to be used for improved physical properties, while maintaining the level of compound viscosity necessary for processing.

Abstract: This method of making 5,6-dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide is based on the use of an oxathiolane, namely, 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide, which may be formed by condensing 2-mercaptoethanol with acetoacetanilide under acidic conditions in a solvent medium (aromatic hydrocarbon, chlorinated hydrocarbon or alkyl ester of an aliphatic acid). The said oxathiolane, with or without purification, is reacted with hydrogen peroxide in water or in a water-organic solvent mixture under basic conditions in the presence of a catalytic amount of a metal compound such as sodium tungstate to form 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide 3-oxide.

Abstract: N,N'-disubstituted sulfonyl hydrazine with the following structural formula are disclosed:R(SO.sub.2 NR.sup.1 NHR.sup.2).sub.nwherein the R.sup.1 and R.sup.2 groups are the same or different and are either --COOR.sup.3 or --CONHR.sup.4. These novel compounds are useful as high temperature blowing agents for gas-expandable polymers.

Abstract: Substituted thiophenes of the following formula, some of which are new compounds, are useful in controlling certain pests, particularly mites: ##STR1## wherein A, Y and Z are various substituents such as phenyl and substituted phenyl.

Abstract: Graft copolymers of resin-forming monomers on monoolefin-type rubber spines, particularly ethylene-propylene-non-conjugated diene rubber spines, are made in solution with the aid of a free radical polymerization initiator. The graft copolymers have high impact strength.

Abstract: The use of di- and triaryl-substituted thiazoles as pesticides is disclosed. Insects, such as mosquitos, and acarids, such as mites and ticks, are among the pests which may be controlled.

Abstract: A method of preparing a thermoplastic elastomeric blend comprising mixing from 90 to 10 parts by weight of monoolefin copolymer rubber with correspondingly from 10 to 90 parts by weight of polyolefin resin having tertiary hydrogen and a free radical generating curing agent therefor, masticating and shearing the mixture to produce a semi-cure of the rubber, completing the semi-cure before the onset of melting of the polyolefin resin, and ensuring that once the polyolefin has melted the level of free radicals remaining in the mixture is not sufficient to cause substantial degradation of the polyolefin.

Abstract: A two-piece molded golf ball comprised of a resilient core (polybutadiene-basic zinc methacrylate covulcanizate) and an ionomer resin cover, the cover having a dimple design of icosahedral array. This ball has superior flight performance compared to conventional two-piece molded balls.

Abstract: Painted exterior automotive body parts made of blends of EPM or EPDM type elastomers with highly unsaturated rubbers, vulcanized to provide vulcanizates having high flexural modulus (from 7,000 to 45,000 psi), using high sulfur levels (6 to 12 parts per 100 parts by weight of elastomers).

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: A novel thermoplastic, elastomeric material is obtained by curing under shear conditions (e.g. in a high shear internal mixer) a blend of vulcanizable rubber (e.g. SBR, EPDM) and a bituminous material (e.g., asphalt) in the presence of a rubber vulcanizing agent (e.g. sulfur or peroxide). The product has a unique combination of elastomeric and thermoplastic properties. It can be processed by conventional thermoplastic methods at elevated temperatures (e.g. extrusion, calendering, vacuum forming) and at normal temperatures possesses good elastomeric properties without the need for subsequent vulcanization. If desired, the material can be re-processed.

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: Thermoplastic polyurethanes prepared from a reaction mixture comprising:(a) a poly(oxypropylene)-poly(oxyethylene) glycol of molecular weight from 1000 to about 3000 containing 25-60% by weight oxyethylene groups;(b) a polyester polyol of molecular weight from 1000 to about 3000;(c) a polyisocyanate; and(d) a low molecular weight polyol chain extender.The elastomers are useful in automotive product applications, cattle ear tags, coatings and coated fabrics.

Abstract: Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##STR1## where X is nitrogen or C-R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen when X is C-R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl) benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.

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: N-(1,1-dioxotetrahydro-3-thienyl)-2,6-dialkylmorpholines, useful as catalysts in making polyurethane foam.

Abstract: Chain extended polyurethanes are prepared, using certain 3-(hydroxyhydrocarbylsecondaryamino)thiophene 1,1-dioxides, some of which are new chemicals. E.g., 3-(2-hydroxypropylamino)tetrahydrothiophene 1,1-dioxide is especially useful as a chain extender for high resiliency, flexible polyurethane foams.

Abstract: Polymeric blends comprising a rubber latex and large particle size solid polyvinyl chloride resin provide good tuft lock in tufted carpets and enhance flame retardancy of same. The blend is applied to the carpet and dried at an elevated temperature below the flux temperature of the polyvinyl chloride resin.

Abstract: Sulfites derived from alkynols and glycol ethers of phenylphenols are provided which are useful as insecticides and acaricides and which exhibit substantially reduced phytotoxicity than similarly used compounds. This invention also deals with the use of the novel sulfites in treating plants.