Abstract: In a positive drive power transmission system composed of a toothed belt and two or more pulleys, operating noise resulting from the impact of the belt and the pulleys is dramatically reduced by having surface discontinuities on either the belt or on the pulleys on those surfaces where the belt and the pulleys engage in impact contact when in operation. The surface discontinuities may be formed by recessed or raised portions of the belt or pulleys, may be straight or curved, and may be substantially parallel to the tensile member or at an angle thereto. Several methods of manufacturing belts with such surface discontinuities are disclosed.

Abstract: The single-stage building of 0.degree. belted pneumatic tires completely in flat band form on standard building drums, is disclosed. The feasibility of the process rests on the provision of the substantially inextensible metallic or non-metallic belt cords in the form of longitudinally extensible high "soft stretch" tapes. In a preferred version of the invention, the tape is composed of a plurality of cords each having formed therein a multiplicity of undulations which in any given straight length of the tape are substantially planar, the cords being disposed in side by side relation so that the planes of the undulations of each cord are generally parallel to the planes of the undulations of each adjacent cord, and the cords together with a relatively weak and frangible but only minimally undulated stabilizing yarn for the tape being secured to each other and held in their undulating state by a relative weak, chain stitch knitted, frangible stitching yarn or thread.

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: 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 and 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: A pneumatic tire having a rib on each sidewall adjacent to the flange of the rim on which the tire is mounted. The overlap between the rib and the corresponding flange and the width of the rib are such that the rib interlocks with the rim flange when the tire is deflated under load to allow a deflated tire to operate on the rim without becoming disengaged from the rim.

Abstract: A method and apparatus for producing either bulked continuous filament or spun staple yarn in one continuous operation are disclosed. In the method, a first single end of either continuous filament or spun staple yarn is ballooned about and plied with a like second single end of yarn while both are under tension and advancing at a common linear speed. A higher tension is utilized during the plying operation. The plied yarn is then subjected to heat while the tension is relaxed, followed by a cooling and drying stage, to enable the yarn to be twist-set in a bulked condition, with the component single ends substantially free of any twist memory. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.

Abstract: New flame-retarded rubber and plastic compositions are disclosed which are economical to produce and which exhibit increased flame-retardance, improved mechanical properties and reduced toxicity. Generally, these new compositions comprise a copolymer of acrylonitrile-butadiene rubber or a terpolymer of acrylonitrile, butadiene and styrene, a bromine- or chlorine-containing organic fire-retardant additive, and an iron oxide.

Abstract: Antioxidants containing a sulfonyl azide moiety react with polymers having carbon-hydrogen bonds thereby becoming non-extractable and non-migratory.

Abstract: A thermoplastic, elastomeric and reprocessable polymer blend comprising:A. 30 to 90 parts by weight of a terpolymer of ethylene, a different monoolefin, and dicyclopentadiene, the weight ratio of ethylene to different monoolefin being from 70/30 to 85/15, said terpolymer having a zero shear viscosity of not greater than 0.5 to 10.sup.9 poises; andB. correspondingly 70 to 10 parts by weight of a polyolefin resin.

Abstract: There are disclosed novel, dodecahalo-9,10-oxadecahydro-1,4:5,8-dimethanoanthracenes which are useful as flame retardant additives for acrylonitrilebutadiene-styrene (ABS) gum plastics and other polymeric materials, and a method for preparing these novel anthracenes.

Abstract: Regulation of the growth of plant life, including herbicidal, defoliant or desiccant effects, may be accomplished with certain 2,3-dihydro-1,4-dithiin 1,1,4,4-tetroxides of the formula ##STR1## wherein the R's have various values such as hydrogen, alkyl, etc. Certain of the compounds, such as 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetroxide, are new chemicals, and are useful as pre-and post-emergent herbicides, and in harvest aid procedures, such as defoliation/desiccation of various crops, including cotton and potatoes.

Abstract: This invention relates to N-(o- or p-thiophenyl) substituted polyhalo-5-norbornene-2,3-dicarboximides, their preparation via a one-step process and their use as flame retardants for polyurethane elastoplastics and other polymeric materials.

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: Preemergence or postemergence control of weeds is effected by applying certain 2-sulfinyl or 2-sulfonyl pyridine N-oxide derivatives, e.g., 2-(4-chlorophenylmethylsulfonyl)pyridine N-oxide.

Abstract: Compounds having either of the structures ##STR1## have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.

Abstract: The processing of uncured rubber or like raw material, which is normally produced, stored and shipped in sheet form but which is to be subjected to a continuous and uniform strip feeding into an extruder, mill or like treating apparatus, is disclosed. For this purpose, there is provided in a sheet of such material a plurality of slits extending across the sheet and spaced from each other longitudinally of the sheet, the slits in an alternating sequence starting at the opposite side edges of the sheet and each terminating short of the respective other side edge of the sheet. When one end portion of the slit sheet is introduced into the bite of the apparatus, the sheet is subjected to a pulling force and separates along the slits into a continuous zig-zag strip. Apparatus for slitting the sheet in the indicated manner is also disclosed.

Abstract: In a tire cord fabric, especially one comprising a multiplicity of parallel steel cords, an improvement is provided whereby the various sources of supply of the tire cords may be identified. In a preferred embodiment, the improvement comprises the substitution of at least one pair of modified steel cords, for example spirally wrapped steel cords, for an equal number of regular steel cords with the spirally wrapped cords being spaced from each other by a particular number of the regular cords for each cord manufacturer. For example, a spacing of 10 regular cords between a pair of special cords may represent manufacturer A, while a spacing of 12 regular cords between a pair of special cords may represent manufacturer B, etc. Thus, each of several sources of supply of the regular cords may be identified according to the number of regular cords between a pair of special cords.

Abstract: Sulfonyl carbazates containing at least one group of:--SO.sub.2 --NHNH--COO--wherein the oxygen and the sulphur atoms attach to various organic groups are useful as high temperature blowing agents for gas-expandable polymers. Additionally, novel polyfunctional and secondary-alkyl substituted sulfonyl carbazates have been discovered.