Abstract: This invention relates to non-aqueous, indefinitely conformable, halogen free, intumescent putty useful in an opening as a firestop material to deter the spread of fire, smoke, and vapors during a fire.

Abstract: What is claimed is a coherent, elastomeric, solid, free-standing film comprising an organic phase comprising: (a) one or more block copolymer(s) corresponding to the formula:A--B--X.sub.m --(B--A).sub.

Abstract: Aqueous dispersions, and films prepared therefrom, comprising an organic phase of block copolymers and optional extenders wherein the block copolymers corresponds to the formula:A-B-X.sub.m -(B-A).sub.nwherein each A is a polymer block of a monovinylidene aromatic monomer and conjugated dienes, each B is a polymer block of one or more conjugated dienes and, optionally, one or more monovinylidene aromatic monomers, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5. Each A polymer block has a weight average molecular weight from 4,000 to 15,000 Daltons. Each B polymer block has a weight average molecular weight from 20,000 to 200,000 Daltons. The total monovinylidene monomer content is from 6 to 30 percent by weight of the organic phase. The effective phase volume of the A polymer block in the organic phase is from 8 to 20 percent. Thin elastomeric articles prepared from the emulsions have improved tensile strength properties.

Abstract: An aqueous dispersion is claimed which is capable of forming a free-standing, coherent, elastomeric, solid film which, after drying and annealing at 80.degree. C. for 30 minutes, demonstrates a tensile strength of about 11.0 MPa or greater wherein the dispersion comprises: I. an organic phase comprising: (a) one or more block copolymer(s) corresponding to the formula A-B-X.sub.m -(B-A).sub.n, wherein each A polymer block consists essentially of a monovinylidene aromatic monomer, having a weight average molecular weight from about 8,000 to about 15,000 Daltons, each B polymer block consists essentially of a conjugated diene and, optionally, a monovinylidene aromatic monomer having a weight average molecular weight from about 30,000 to about 200,000 Daltons, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5, and (b) optionally, an extender for the block copolymer which is compatible with the B block; II. a surfactant; and III.

Abstract: Aqueous dispersions, and films prepared therefrom, comprising an organic phase of block copolymers and optional extenders wherein the block copolymers corresponds to the formula:A--B--X.sub.m --(B--A).sub.nwherein each A is a polymer block of a monovinylidene aromatic monomer and conjugated dienes, each B is a polymer block of one or more conjugated dienes and, optionally, one or more monovinylidene aromatic monomers, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5. Each A polymer block has a weight average molecular weight from 4,000 to 15,000 Daltons. Each B polymer block has a weight average molecular weight from 20,000 to 200,000 Daltons. The total monovinylidene monomer content is from 6 to 30 percent by weight of the organic phase. The effective phase volume of the A polymer block in the organic phase is from 8 to 20 percent. Thin elastomeric articles prepared from the emulsions have improved tensile strength properties.

Abstract: The present invention is directed toward anionic polymerization employing lithio amines mixed with an organic alkali metal compound and optionally, a chelating reagent. The lithio amines have the general formula (A)Li(SOL).sub.y, where SOL is a solubilizing component, A is an alkyl, dialkyl, cycloalkyl or dicycloalkyl amine radical or a cyclic amine, and y is 0 or is from about 0.5 to about 3. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer with a multifunctionality.

Abstract: The present invention is directed toward anionic polymerization initiators which are soluble in acyclic alkane solvents. The initiators include a solubilized lithio amine having the general formula (A)Li(SOL).sub.y. SOL is a solubilizing component and A is an alkyl, dialkyl or cycloalkyl amine radical or a cyclic amine and y is from about 1 to 4. The cyclic amine has an alkylene, oxy- or amino-alkylene group having from about 3 to about 16 methylene groups. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer wtih a multifunctionality.

Abstract: The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics.

Abstract: An anionic polymerization initiator includes the C-lithio reaction product of an organolithium compound and a tertiary-amino allyllithium or a tertiary-amino xylyllithium. When used in an anionic polymerization, a functional group from the initiator is incorporated onto the head of the growing polymer and a lithium atom is incorporated at the "living" end of the polymer chain prior to quenching. The initiator may be used to polymerize a monomer(s) including diolefin monomers, monovinyl aromatic monomers and trienes, and the living ends of the polymers are effectively maintained even at temperatures of up to 300.degree. F. and higher. Such polymers exhibit an increased efficiency in coupling termination reactions, and products prepared from such polymers exhibit improved hysteresis characteristics. Products such as tires and the like can be prepared from such polymers and from vulcanizable elastomer compositions employing the polymers.

Abstract: A color-changeable marking composition well-suited for drawing and coloring activities. In a preferred embodiment, the composition comprises (a) an emulsion, the emulsion having an aqueous continuous phase characterized by a basic pH and a noncarboxylated styrene-butadiene rubber latex discontinuous phase; (b) a pigment insoluble in the aqueous continuous phase of the emulsion; and (c) an acid dye soluble in the aqueous continuous phase of the emulsion, the acid dye having a different color than the water-insoluble pigment. Upon contact with the surface of a conventional porous marking substrate, the emulsion breaks, causing the aqueous continuous phase to be absorbed by the substrate and the rubber latex discontinuous phase to form a cohesive film on the surface of the substrate. The acid dye, because of its solubility in the aqueous continuous phase, is also absorbed by the substrate and cannot readily be removed therefrom.

Abstract: A vulcanizable elastomeric compound and products such as pneumatic tires and the like, are formed from a functionalized polymer having a functional group derived from an anionic polymerization initiator. The anionic polymerization initiator comprises the general formula ##STR1## where R.sup.1 -R.sup.5 are the same or different and are selected from the group consisting of hydrogen; alkyls having from alkyls having from 1 to about 12 carbon atoms; aralkyls having from 7 to about 20 carbon atoms; dialkylaminos having from 2 to about 20 carbon atoms; and, dialkylaminoalkyls having from 3 to about 20 carbon atoms. At least one of R.sup.1 -R.sup.5 is selected from the group consisting of the dialkylaminos and the dialkylaminoalkyls. Methods of the present invention include preparing functionalized polymers and reducing the hysteresis of vulcanizable elastomeric compounds.

Abstract: A process is provided for the preparation of bitumen-polymer compositions wherein bitumen is mixed at a composition between 100.degree. C. and 230.degree. C. with a block copolymer of styrene and a conjugated diene and a coupling agent containing a sulphur-donor compound for a duration of at least 10 minutes. The coupling agent is comprised of an elementary sulphur vulcanization agent and at least one sulphur-donor vulcanization accelerator from among morpholine disulphide, N,N'-disulphide of caprolactam and thiuram polysulphides.

Abstract: A method for adhesively bonding opposed paperboard surfaces to each other to form a strengthened bond in a paperboard product and paperboard products formed thereof, comprising the steps of (A) applying a green-strength adhesive to at least a portion of the first paperboard surface; (B) applying a styrene-butadiene latex adhesive or a modified styrene-butadiene latex adhesive as a strengthening adhesive to at least a portion of either the first or the second paperboard surface such that the green-strength adhesive is substantially offset from the strengthening adhesive when the first and second paperboard surfaces are positioned in an opposed relationship; (C) orienting the first and second paperboard surfaces such that they are opposed to each other; and (D) contacting the first and second surfaces together to form the strengthened bond.

Abstract: Gels of hard-elastomer-hard block copolymers with at least 300 parts of extending liquid per 100 parts of the copolymer contain at least 50 parts (per 100 parts of copolymer) of a stabilizing additive which resists migration of PVC plasticizers into the gel when in contact with a plasticized PVC article. Styrene-(ethylene-butylene)-styrene triblock copolymers with organic phosphate stabilizers are preferred, these stabilizers tending to raise the gel softening temperature.

Abstract: A vulcanizable elastomeric compound and products such as pneumatic tires and the like, are formed from a functionalized polymer having a functional group derived from an anionic polymerization initiator. The anionic polymerization initiator comprises the general formula ##STR1## where R.sup.1 -R.sup.5 are the same or different and are selected from the group consisting of hydrogen; alkyls having from alkyls having from 1 to about 12 carbon atoms; aralkyls having from 7 to about 20 carbon atoms; dialkylaminos having from 2 to about 20 carbon atoms; and, dialkylaminoalkyls having from 3 to about 20 carbon atoms. At least one of R.sup.1 -R.sup.5 is selected from the group consisting of the dialkylaminos and the dialkylaminoalkyls. Methods of the present invention include preparing functionalized polymers and reducing the hysteresis of vulcanizable elastomeric compounds.

Abstract: A rubber composition having excellent processability and improved dispersion state of carbon black containing:a functional group-containing polymer having a number average molecular weight of 1,000 to 100,000 and comprising 0 to 60 mole % of a structural unit represented by the formula (1) and 100 to 40 mole % of a structural unit represented by formula (2) plus a structural unit represented by formula (3), the polymer having on one end of its molecule an average at least 0.6 group per molecule of a group represented by formula (4), a hydroxyl group or an amino group; ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group, ##STR2## wherein R.sup.2 represents a hydrogen atom or a methyl group, ##STR3## wherein R.sup.3 represents a vinyl group or an isopropenyl group;--COOR.sup.4 (4)wherein R.sup.4 represents a hydrogen atom or an alkali metal;a solid rubber andcarbon black.

Abstract: A process for stabilizing polymers is provided comprising:(1) contacting at least one hindered phenolic compound and an organic phosphite to form a stabilizing mixture,wherein said contacting is at a temperature sufficient to at least partially dissolve said hindered phenolic compound,wherein said stabilizing mixture is essentially free of organic solvent; and(2) contacting said stabilizing mixture and a polymeric composition comprising a monovinylarene/conjugated diene copolymer;wherein said organic phosphite and said at least one hindered phenolic compound are present in step (2) in an effective amount sufficient to stabilize said polymeric composition. In accordance with another aspect of this invention a method for preparing a stabilizing mixture essentially free of organic solvent is provided.

Abstract: A vulcanizable elastomeric compound and products such as pneumatic tires and the like, are formed from a functionalized polymer having a functional group derived from an anionic polymerization initiator. The anionic polymerization initiator comprises the general formula ##STR1## where R.sup.1 -R.sup.5 are the same or different and are selected from the group consisting of hydrogen; alkyls having from alkyls having from 1 to about 12 carbon atoms; aralkyls having from 7 to about 20 carbon atoms; dialkylaminos having from 2 to about 20 carbon atoms; and, dialkylaminoalkyls having from 3 to about 20 carbon atoms. At least one of R.sup.1 -R.sup.5 is selected from the group consisting of the dialkylaminos and the dialkylaminoalkyls. Methods of the present invention include preparing functionalized polymers and reducing the hysteresis of vulcanizable elastomeric compounds.

Abstract: There are disclosed a polystyrene composition which comprises 100 parts by weight of a syndiotactic polystyrene (SPS)(a) and 1 to 100 parts by weight of a high molecular compound comprising 5 to 95% by weight of polyphenylene ether (PPO) and/or modified PPO and 95 to 5% by weight of a rubbery elastomer (b) and optionally, 1 to 350 parts by weight of an inorganic filler (d) and also a polystyrene composition which comprises 100 parts by weight of the component (a), 0.1 to 30 parts by weight of the component (b) and 1 to 100 parts by weight of a rubbery elastomer (c) and optionally, 1 to 350 parts by weight of the component (d). The above compositions are greatly improved in impact resistance, elongation and retention of physical properties during recycling without detriment to heat resistance and modulus of elasticity.

Abstract: The present invention provides an optimum radial tire which is suitable for each car. In the present invention, an .alpha. value is introduced as indicating the properties of the car and the tread rubber of the tire is selected according to the .alpha. value. Accordingly, the present invention provides a radial tire which comprises a tread and sidewall, wherein the tread has the claimed relation between a viscoelasticity (tan .delta.) peak temperature (Tp) and an .alpha. value which indicates the properties of a car, and a one side half width (w/2) of 25.degree. C. or less, the one side half width (W/2) being defined with respect to a viscoelasticity distribution curve as the distance along the 1/2 peak tan .delta. viscoelasticity line from the perpendicular line representing (Tp) to the intersection with the viscoelasticity distribution curve to the right of the perpendicular line.

Abstract: A corrosion protection composition comprising a thermoplastic elastomeric block copolymer, a colloidal size amorphous overbased sulphonate of an alkaline earth metal, a tackifier resin and optionally a plasticizer for the block copolymer.

Abstract: The present invention provides an organic solvent-free composition useful as an adhesive for bonding natural rubber compounds, synthetic rubber compounds and a combination of natural and synthetic rubber compounds, especially during the formation of a tire.

Abstract: The present invention is directed to a novel polymodal asymmetric elastomeric block copolymer and a pressure sensitive adhesive and tape made therefrom. The novel block copolymer comprises from about 4 to about 40 percent by weight of a polymerized monovinyl aromatic compound and from about 96 to about 60 percent by weight of a conjugated diene. The block copolymer has the general formula Q.sub.n Y where Q represents an individual arm of the block copolymer and has the formula S-B; n represents the number of arms and is at least 3; and Y is the residue of a multifunctional coupling agent. Furthermore, S is a nonelastomeric polymer segment endblock of a polymerized monovinyl aromatic homopolymer, there being at least two different molecular weight endblocks in the block copolymer. The number average molecular weight of the higher molecular weight endblock (Mn).sub.H is in the range of from about 5,000 to about 50,000, and the number average molecular weight of the lower molecular weight endblock (Mn).sub.

Abstract: An erasable marking composition comprising a noncarboxylated styrene-butadiene copolymer resin, a colorant, and a solvent. The composition can be applied to substrates by a variety of delivery means, such as porous-tipped and brush-tipped writing instruments, as well as brushes, and can be easily erased with a substantially nonabrasive eraser, such as a common pencil eraser, for an extended period of time.

Abstract: The present invention provides radial tires which exhibit physical properties in the diagonal area of FIG. 1 and which are suitable for passenger cars equipped with an anti-lock brake system. The radial tires of the present invention have an aspect ratio of 70% or less and comprises a tread, a pair of side walls, a pair of bead portions, each having a bead apex disposed therein, the bead apex having a JIS hardness or 85 or more, and a first and a second breaker, wherein the tread has a tan .delta. peak temperature (Tp) of -40.degree. to -5.degree. C., a one side half width (W/2) of 25.degree. C. or less and a JIS-A hardness of 56 to 72; the tan .delta. peak temperature (Tp) and the one side half width being obtained from a viscoelasticity (tan .delta.) temperature distribution curve which is determined using a viscoelastic spectrometer a frequency of 10 Hz, and initial strain of 10%, an amplitude of .+-.0.25% and a temperature elevating rate of 2.degree. C.

Abstract: There is provided hot water and alkali removable pressure-sensitive adhesive composition based on emulsion pressure-sensitive adhesive polymers used in combination with a rosin based acidic tackifier and a rosin based surfactant.

Abstract: A block copolymer comprising about 5 weight percent to about 95 weight percent monovinylarene monomer, about 95 to about 5 weight percent butadiene, and an effective amount of a thermal stabilizing agent selected from the group consisting of ascorbic acid, citric acid, disodium citrate, and mixtures thereof is provided. A process for stabilizing conjugated diene/monovinylarene block copolymer and articles prepared from such copolymers are also provided.

Abstract: An ABS adhesive for joining ABS articles, such as pipes, comprises: (a) about 10 to 35 wt % ABS resin; and (b) about 40 to 60 wt % dibasic esters and, optionally, at least one solvent selected from the group consisting of 0 to about 30 wt % methyl ethyl ketone and 0 to about 10 wt % acetone. The VOC level of the ABS adhesive composition of the invention is at or below the allowed maximum value of 350 g/1. The lap shear strength ranges from about 400 to 700 psi, which is deemed adequate for most non-pressure applications, such as drain, waste, and vent uses, and pool and spa applications.

Abstract: An aqueous-based erasable ink composition suitable for use in highlighters and other writing instruments includes a styrene-butadiene copolymer and a water-insoluble pigment. It preferably also includes a release agent and an anti-oxidant, and has a viscosity of between 10cps and 30cps.

Abstract: A process of making a solvent-free water-based emulsion of an anionically polymerized polymer which comprises: heating the polymer until its viscosity is no more than 3,000 centipoise, (b) mixing water with a surfactant, (c) adding the mixture of (b) to the polymer of (a) while agitating the polymer at high speed, thereby forming an emulsion, (d) cooling the emulsion to below 100.degree. C., and (e) optionally subjecting the emulsion to turbulent flow and/or cavitation. Also included are emulsions of such polymers.

Abstract: The invention concerns a phenolic resin.The resin is a liquid, contains phenol-formaldehyde, formaldehyde-urea and phenol-formaldehyde-amine condensates, and has a free formaldehyde content of less than 3%, this proportion being expressed as a percentage of the total fluid weight, and a dilutability rate in water which equals or surpasses 1,000%. Furthermore, the resin is stable when heated. Application to less-polluting sizing compositions for mineral fibers; and use of the fibers thus sized for the manufacture of insulating products and soilless cultivation substrates.

Abstract: Elastomer compositions comprising (A) ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000 and (B) oil are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated diene and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R.degree.M and a 1,3-conjugated diene wherein R.degree. is a hydrocarbyl group, M is an alkali metal, the mole ratio of R.degree.M to 1-alkyne is about 3:1 and the mole ratio of conjugated diene to 1-alkyne is from about 2:1 to about 30:1.

Abstract: A vibration damping material of asphalt cement comprising a) 60-90 parts by weight of asphalt cement: b) 10-30 parts by weight of thermoplastic rubber: and c) 0-20 parts by weight of tacky producer. A total sum of weight of a), b) and c) is 100 parts by weight. A penetration of the vibration damping material falls in a range of 35 to 140.

Abstract: The present invention is a cured adhesive composition with enhanced properties prepared by the high energy ionizing radiation initiated curing of a polymer composition. The polymer composition comprises from 1/3 to 2/3% by weight of the polymer composition of a block copolymer having the structure(D--A--B).sub.x --Y--C.sub.zwhere A is a polymer block of a vinyl aromatic hydrocarbon, B, C and D are polymer blocks of a conjugated diene, Y is a coupling agent or coupling monomers or initiator, x ranges from 3 to 30, z ranges from 0 to 10, the molecular weight of the A blocks ranges from 5,000 to 25,000, the molecular weights of the B and C blocks range from 15,000 to 100,000 and the molecular weight of the D blocks ranges from 500 to 5,000 in one embodiment and above 5000 to 50,000 in the other; and a tackifying resin.

Abstract: A substantially nonthixotropic composition capable of minimizing the amount of airborne asbestos particles released during removal of asbestos from a structural unit and encapsulating the removed asbestos to permanently prevent the release of airborne asbestos particles. The composition includes (i) a major proportion of water, (ii) a nonionic-surfactant-stabilized latex, such as a latex of styrene butyl rubber, having a viscosity of less than about 300 cps and a maximum particle size of less than about 0.4 microns, (iii) sufficient nonionic surfactant to reduce the surface tension of the composition to less than about 40 dynes per cm, and (iv) a cationic surfactant. Optionally, the composition may further include a defoamant, a corrosion inhibitor, a pH buffering agent, a freezing point depressant and/or a dye.

Abstract: A (halomethyl arene)-modified elastomer is made by reacting a lithium terminated elastomer intermediate with the halogen atoms of a halomethyl vinyl arene compound. A road-contacting tread component for a pneumatic tire is fabricated from vulcanized elastomer made by vulcanizing an elastomer composition of a (halomethyl arene)-modified elastomer, a carbon black reinforcing agent, and a sulfur-based vulcanizing system. A process for making a (halomethyl arene)-modified elastomer includes polymerizing at least one diene monomer with a lithium-containing initiator, capping the lithium terminated elastomer by reaction with a halomethyl arene compound, and recovering the modified elastomer.

Abstract: The present invention relates to hydrogenated block copolymers of butadiene and at least one other diene, preferably isoprene. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.

Abstract: The present invention provides a rubber composition containing a leather powder or gelatin powder, and a tire having a tread prepared from the rubber composition.

Abstract: High-performance tires comprising treads made of elastomer compositions comprising (A) ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000; (B) extender oil; and (C) carbon black are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated diene and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R.sup.o M and a 1,3-conjugated diene wherein R.sup.o is a hydrocarbyl group, M is an alkali metal, the mole ratio of R.sup.o M to 1-alkyne is about 3:1 and the mole ratio of conjugated diene to 1-alkyne is from about 2:1 to about 30:1.

Abstract: The invention concerns a phenolic resin.The resin is a liquid, contains phenol-formaldehyde, formaldehyde-urea and phenol-formaldehyde-amine condensates, and has a free formaldehyde content of less than 3%, this proportion being expressed as a percentage of the total fluid weight, and a dilutability rate in water which equals or surpasses 1,000%. Furthermore, the resin is stable when heated. Application to less-polluting sizing compositions for mineral fibers; and use of the fibers thus sized for the manufacture of insulating products and soilless cultivation substrates.

Abstract: An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every polymer chain and provide vulcanizable rubber compounds exhibiting reduced hysteresis. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance. Methods are also provided for preparing the initiators and the elastomers having reduced hysteresis properties.

Abstract: Elastomer compositions comprising (A) ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000 and (B) oil are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated diene and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R.sup.o M and a 1,3-conjugated diene wherein R.sup.o is a hydrocarby group, M is an alkali metal, the mole ratio of R.sup.o M to 1-alkyne is about 3:1 and th mole ratio of conjugated diene to 1-alkyne is from about 2:1 to about 30:1.

Abstract: A heat resistant pneumatic tire whose tread is composed of a rubber composition comprising, as a main rubber component, a modified, conjugated diene based polymer prepared by adding an .alpha., .beta.-unsaturated carboxylic acid represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently represent hydrogen atom, halogen atom, or an alkyl, alkenyl or allyl group having at most 5 carbon atoms, or a substituted alkyl, alkenyl or allyl group,to a conjugated diene based polymer in an amount within the range between 0.1% and 5.0% based on the weight of the conjugated diene based polymer. This tire is suitable for continuous running at high temperatures and maintains a good road-surface-grip performance even during such running.

Abstract: An adhesive is disclosed. The adhesive is a blend of a tackifier and a polymer, having an elastomeric main chain and incorporating thermoplastic macromonomer side chain grafts, which can exhibit enhanced shear thinning and allow spray application of the adhesive onto a substrate. In one embodiment, the polymer main chain comprises a polymer of an isoolefin having about 4 to about 7 carbon atoms and a para-alkylstyrene, and the side chains comprise a grafted macromonomer, such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution, attached to the para-alkyl group of the para-alkylstyrene. In another embodiment, the polymer comprises a polyolefin main chain and a norbornene terminated macromolecule copolymerized to introduce the side chains.

Abstract: A process for anionic polymerization of polymerizable monomers with an organo lithium initiator followed by polymerization termination characterized in that terminated reaction products are neutralized by contacting with sulfuric acid, phosphoric acid or a mixture thereof.

Abstract: A forming process for producing a hard shaped molded article that includes subjecting a moldable thermosetting composition to a high temperature cure condition at a temperature greater than about 250.degree. C. and less than the decomposition temperature of the composition to form a crosslinked polymeric network. In particular, the invention features a forming process for producing a hard shaped molded article that includes the steps of(a) providing a moldable thermosetting composition that includes 1) a polybutadiene or polyisoprene resin which is a liquid at room temperature and which has a molecular weight less than 5,000 and a large number of pendent vinyl groups and 2) a solid butadiene- or isoprene-containing polymer (e.g, a thermoplastic elastomer);(b) forming the composition into a shape; and(c) curing the composition to produce the article including subjecting the composition to a high temperature cure condition at a temperature greater than about 250.degree. C.

Abstract: Rubber filled with an inorganic whity filler such as white carbon is improved in its vulcanized rubber properties such as tensile strength, tear strength and heat build-up resistance by incorporating thereto a dinitrodiamine compound represented by the formula of ##STR1## wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R.sup.1 is hydrogen, an aliphatic group, an alicyclic group or an aromatic group, with the proviso that two nitrogen atoms linking through X may further link through R.sup.1 when both X and R.sup.1 are the aliphatic groups, and R.sup.2 and R.sup.3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, with the proviso that R.sup.2 and R.sup.3 may conjointly form a ring. The dinitrodiamine compound acts as a coupling agent for the rubber and the inorganic whity filler.

Abstract: Disclosed in this invention is a thermoplastic resin composition comprising a thermoplastic resin, a conductive inorganic filler and/or a non-conductive inorganic filler, and an adduct of an ethylene oxide with a saponified product of a copolymer of ethylene and a vinyl ester of a saturated carboxylic acid. The adduct of an alkylene oxide with a saponified product of a copolymer of ethylene and a vinyl ester of a carboxylic acid is an additive having excellent compatibility with the thermoplastic resin and useful for improving dispersibility of the inorganic filler.

Abstract: A method of producing fluorinated elastomeric articles having reduced coefficients of friction, improved wear life and improved resistance to fluid permeability. A thermoplastic elastomeric article is exposed to gaseous fluorine in a reactor vessel under reaction conditions sufficient to create a fluorinated material on the external portions of the elastomeric article, which fluorinated material extends inwardly into the matrix of the article, without promoting degradation of the tensile properties of the article.

Abstract: Incorporation of fibrous filler into a styrene-butadiene rubber (SBR) by mixing a fibrous filler, SBR latex and a coagulant, feeding the resulting coagulated fiber-filled SBR latex to a dewatering extruder and through a flow restriction that applies back pressure sufficient that water present in the SBR is forced out of a vent upstream from the flow restriction and discharging the fiber-filled SBR from the extruder.