Abstract: A pneumatic insert for a pneumatic tire comprises a generally toroidal-shaped hollow tubular member with beads, that includes an insert inflation chamber pneumatically noncommunicable with the tire inflation chamber. A crown portion of the insert has a radially inner and a radially outer layer that define a closed lubricant chamber, also noncommunicable with the tire inflation chamber under normal running conditions. Lubricant release means such as valve or diaphragm provided in the outer crown layer permit release of the lubricant when the tread collapses against the insert crown during run-flat conditions.

Abstract: This invention relates to a multilayered printing plate consisting of (1) a photosensitive printing layer comprising an elastomeric polymer, an ethylenically unsaturated monomer and a photoinitiator, (2) an elastomeric backing layer which is partially photocured and made from a vinyl terminated prepolymer containing a photoinitiator and (3) an optional supporting layer. The multilayer structure is useful for flexographic printing.

Abstract: High impact strength gum plastics are prepared by blending a styrene acrylonitrile resin with a styrene-ethylene-butylene-styrene block copolymer which has grafted on to it an acrylonitrile resin; preferably styrene acrylonitrile.

Abstract: A non-woven fabric comprising an assembly of fibers of discrete length which are interconnected and, at least a portion of which are in contact with each other, said fibers comprising crystalline syndiotactic 1,2-polybutadiene (1,2 SBD).

Abstract: A pneumatic run-flat insert for a pneumatic tire is provided with circumferential sections having different radii. During vehicle operation in a run-flat condition the different insert radii cause a vibratory disturbance at a wheel axle that alerts the driver of the existence of a run-flat condition or an abnormally low-pressure condition in the tire. During normal driving conditions there is clearance between the insert and the tire liner and no warning vibrations will occur in the wheel axle.In various embodiments of the invention the different insert radii correspond to two or more ply sections in an insert ply having different cord angles. A relatively high cord angle ply section will furnish a relatively larger radius than the ply section with a relatively low cord angle.

Abstract: An improved method for making 3-(3,5-dialkyl-4-hydroxyphenyl)propionates of hydroxyalkyloxamides involved heating the hydroxyalkyloxamide with a lower alkyl ester of 3-(3,5-dialkyl-4-hydroxyphenyl)propionic acid in the presence of an alkanestannoic acid at a temperature of 150.degree. to 230.degree. C., the lower boiling alcohol being removed by distillation.

Abstract: Certain 2-(3-pyridyl) thiazoles are useful for the control of insects, and are particularly effective against aphids. Many of these thiazoles are new compounds.

Abstract: Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests and which also exhibit herbicidal activity, are disclosed. Many of these organotin compounds are new compounds.

Abstract: An acid of the formula A--COOH).sub.x, or an anhydride thereof, wherein x is an integer of 1 or 2, wherein the acid groups are vicinal if x is 2, and A is phenyl, C.sub.2 -C.sub.10 alkylene, C.sub.2 -C.sub.10 alkenylene, C.sub.6 -C.sub.10 bridged or nonbridged cycloalkylene or cylcoalkenylene, with the proviso that A is C.sub.1 -C.sub.6 alkyl if x is 1, renders ethylene-propylene-nonconjugated diene elastomers more adherent to fibers that have been treated with a resorcinol-formaldehyde-latex dip when said elastomers are cured directly onto said fibers.

Abstract: A tire and rim assembly with a plurality of dispensing means adapted to release material into the inflation cavity upon operation of the assembly with the tire in the deflated condition to, for example, minimize damage to the tire cause by operation after deflation. The dispensing means are mounted in a balanced array so that each dispensing means lies at least partially in the well of the drop-center rim, and the dispensing means define a clear arc in the well which is adapted to receive portions of the beads during mounting of the tire to the rim. The clear arc of the well may also receive the beads of the tire during demounting of the tire from the rim assembly. Thus, the tire may be mounted to or demounted from the rim assembly by a method which incorporates the ordinary "buttonhooking" procedure commonly utilized with drop-center rims.

Abstract: A composition comprising a gas-expandable polymeric material and an activated hydrazodicarboxylate blowing agent, wherein the activator is selected from nickelbis(3,5-di-t-butyl-4-hydroxybenzoate), a mixture of 2-hydroxy-4-n-octoxybenzophenone and nickelbis(2-oxy-4-n-octoxybenzophenone), nickel stearate, nickel trifluoroacetylacetonate, [2,2'-thiobis(4-t-thiobis(4-t-octylphenolato)]nickel, nickelbis [O-ethyl-(3,5-di-t-butyl-4-hydroxybenzyl)phosphonate], nickelammoniumsulfate, ethylenediaminetetra(methylenephosphonic acid), and hexamethylenediaminetetra(methylenephosphonic acid).

Abstract: A pneumatic tire having a "run-flat" capability, is disclosed. The tire is in the form of a substantially toroidally shaped carcass having a pair of bead-reinforced sidewall regions and a crown region annularly bridging the sidewall regions. Internally of the carcass, there is provided an expandable nail-deflector for deflecting a nail that punctures, for example, the crown region. The nail deflector has a releasably constrained normal condition when the crown region is puncture-free that is annularly spaced from the interior of the crown region, and is circumferentially self-expandable into engagement with the interior of the crown region upon puncture of the latter by a nail to deflect such nail harmlessly away from its path of entry.

Abstract: A pneumatic insert for a pneumatic tire comprises a generally toroidal-shaped hollow member having a pair of annular insert beads with sidewalls extending therefrom joined to an insert crown portion. Each insert bead has a foot portion with a projecting elastomeric formation at the bead heel to furnish an inner bead diameter at the heel that is less than the inner bead diameter at the toe.In at least one embodiment of the invention the bead heel projection is of triangular shape with a vertex of the triangle defining the first inner bead diameter.In another embodiment of the invention the projecting elastomeric formation extends axially away from the bead heel in a direction substantially parallel to the bead foot.

Abstract: Fire retarded compositions comprise elastomers derived from conjugated, hydrocarbon dienes in combination with a synergistic, three-component flame retardant system comprising (1) a chlorine- and/or bromine-containing fire-retardant additive, (2) alumina trihydrate and (3) an iron oxide.

Abstract: Long chain aliphatic alcohol (C.sub.16 +) is added to thermoplastic elastomer based on blend of olefin copolymer rubber (EPM or EPDM) and polyolefin resin (especially polypropylene). The blend may be uncured or dynamically partially cured. The long chain aliphatic alcohol permits injection molded articles to be demolded within a shorter time without tearing or distortion, and decreases the surface tackiness of the article.

Abstract: Poly-alpha-olefin oils having high flash points useful as heat transfer fluids in solar and industrial applications.

Abstract: A chlorinated polyethylene elastomer or resin is modified by graft copolymerization with acrylic ester type of monomeric material, whose homopolymers have a glass transition temperature of not greater than 6.degree. C., in an amount sufficient to provide an ester group (--COO--) content of from 25 to 40% by weight, to yield a mixed copolymerizate vulcanizable to a heat and oil resistant elastomeric state.

Abstract: A control for controlling load on a tire undergoing testing while rotating in a loaded condition against a test road wheel. As the tire temperature increases during the warm up period of the tire and inflation pressure and load consequently also increase, the control will automatically decrease the load applied to the tire to maintain a preset load on the tire. During equilibrium temperature and pressure conditions of the tire, the control will effectuate decreases in load only and will not permit the tire load applicator to oscillate the load about the reset load point. The load applicator is maintained in an inactive condition by the control means except when a load decrease is necessary. During equilibrium temperature and load conditions on the tire, a relatively fast increase in temperature and a correspondingly fast load increase indicating incipient failure of the tire can be detected by the control.

Abstract: A pulley configuration which increases the contact area between the pulley tooth tips and the land area of the belt teeth. The increased contact area reduces land area wear between belt teeth. The pulley tooth tip has a longitudinal cross-sectional contour partially composed of two substantially circular arcs connected by a line segment which is substantially straight or slightly curved. The length of the line segment is from 2 percent to 100 percent of the width of the belt tooth on which the pulley is used, and preferably less than about 7 percent of the width of the belt tooth. The pulley groove depth may be less than the height of the belt tooth and the groove has a longitudinal cross-sectional contour partially composed of two substantially circular arcs connected by a line segment which is substantially straight or slightly curved. The pulley in combination with a toothed belt forms a positive power transmission system.

Abstract: A belted pneumatic tire is disclosed in which an annular protuberance projects axially from the buttress region on each side of the tire. The protuberances are positioned radially inward of the tire tread and the lateral edges of the belt or breaker extend into the protuberances such that the breaker edges are removed from the vicinity of the tread-ground contact patch to thereby improve uniformity and edge separation problems. A relatively wide breaker having a low cross-sectional curvature is also utilized to thereby provide firm support to the tread and consequent improved performance characteristics.