Abstract: A process for producing a modified polymer which increases low heat buildup and reinforcing capability of a rubber composition and which has excellent abrasion resistance, mechanical characteristics, and processability; a modified polymer obtained by the process; and a rubber composition using the modified polymer are provided. The process comprises a step of carrying out a modification reaction on the active end of a conjugated diene polymer having a vinyl content of below 10%, a cis-1,4 bond content of 75% or higher, and an active end, using an alkoxysilane compound, and a step of carrying out a condensation reaction in the presence of a condensation accelerator comprising a compound of an element belonging to at least one of the groups 4A (excluding Ti), 2B, 3B, and 5B of the periodic table.

Abstract: The present invention provides a modifier for resins which comprises a dispersant (I) or a coatability improver (II) comprising a modified polyolefin (A) and a filler in combination, the modified polyolefin (A) containing a hydrophobic group comprising a polyolefin (a) having a number average molecular weight of 1,500 to 100,000 and 0.2 to 10 double bonds per 1,000 carbons at the molecular terminus and/or within the molecule, and a hydrophilic group containing at least one onium base (b), and a number average molecular weight per (b) being 750 to 50,000.

Abstract: A thermoplastic molding composition comprising aromatic polycarbonate and/or aromatic polyester carbonate, a rubber-modified graft polymer and a plurality of hollow glass beads is disclosed. The composition is distinguished by its improved flowability, high stiffness and small processing shrinkage, as well as unchanged high scratch resistance. The composition is suitable for producing molded articles having desirable properties.

Abstract: A hose material for a fuel cell which is superior in both of low extraction property and electrical isolation, and which also has excellent mechanical properties, and also a hose manufactured using the hose material. The hose material comprises: (A) an ethylene-propylene copolymer; (B) hydrophobic silica; (C) a peroxide crosslinking agent; and (D) carbon black.

Abstract: It is to provide a production process by which gelation can be prevented, in a case where a solvent is removed from a curable fluororesin to obtain a chief material resin, and then coating additives such as a curing agent are mixed to produce a powder coating composition, or in a case where a curable fluororesin, a curing agent and various additives are dissolved or dispersed in a solvent to prepare a raw material solution, and the solvent is removed from the raw material solution to directly produce a powder coating material. To a solution or dispersion of a curable fluorinated copolymer (A), a gelation inhibitor (B) is added, followed by mixing, or a gelation inhibitor (B), a curing agent (C) and as the case requires, various additives (D) are added, followed by mixing, and the solution or dispersion is supplied to a thin-film vacuum evaporator to remove the solvent.

Abstract: An elastomeric composition vulcanizable with sulfur and/or sulfur donors useful for the preparation of tyres, which comprises: a) 100 parts of an elastomeric mixture comprising from 20 to 100% by weight, preferably from 60 to 100% by weight, of a functionalized elastomer (a1), from 0 to 80% by weight of a non-functionalized elastomer (a2) selected from monovinylarene-conjugated diene statistic copolymers, natural rubber, polybutadiene: b) from 10 to 150 parts of silica per 100 parts of (a); c) from 0 to 150 parts of carbon black per 100 parts of (a).

Abstract: Processes are disclosed for oxygen-tailoring polyethylene resin. Polyethylene resin is conveyed through a feed zone, a melt-mixing zone and a melt zone. The resin is contacted with oxygen in an amount of at least 40 parts by weight O2 per million parts by weight resin, and contacted with primary antioxidant downstream of the point or points of oxygen contact. The oxygen-treated resin can be used to make polyethylene film having improved gauge uniformity.

Abstract: This invention relates to a carbon black modified by a two step process in which carbon black is initially treated with functional monomers by an electropolymerization process to form a functionalized carbon black having an initial polymer attached to, of grafted to, the carbon black following which (A) at least one diene monomer, or (B) living anionic catalysis prepared polymer, is introduced to the functionalized carbon black to continue the polymerization, starting from a living end of the initially formed polymer, and thereby form an extended diene-based polymer. By the addition of the diene monomer or the live anionic polymer to form the associated extended diene-based polymer, it is contemplated that the modified carbon black is rendered more compatible with diene-based elastomers. Such modified carbon black may be used, for example, as reinforcement for component(s) of various articles of manufacture, including tires.

Abstract: A method of preparing a cured laminate employing electron beam radiation is provided. The cured laminate is prepared from an uncured laminate including a prepolymer composition containing oligomer, tackifying resin, and optionally, monomer. Also provided are a prepolymer composition and an article including the cured laminate prepared by the method of this invention. The method is useful for preparing cured laminates such as flexible laminates for food packaging.

Abstract: A method for the production of moldable masses is provided. The method includes compounding a polyolefin having a density of less than about 0.918 g/cm3 serial cross-linking agents. The moldable masses can be used the production of low-emission floor coverings with excellent material properties.

Abstract: This invention pertains to rubber cement compositions containing a rubber elastomer, a tackifier, and an organic solvent that is not a hazardous air pollutant (HAP). This invention also includes the method of making this rubber cement composition and of using this adhesive to bond to surfaces together.

Abstract: Chlorinated olefin elastomers prepared from olefin polymer base resins having I10 values of 0.05-0.8 dg/minute are blended with curative and at least 300 phr of an additive package to form a curable composition having excellent properties. Cured compositions provide superior insulating layers for wire and cable applications.

Abstract: A humidity responsive control device consists of a package having at least one face that is a permeable to liquid and gases and water vapor and is formed by mixing together a) 5 to 50% by weight of a hygroscopic polyacrylate and/or PVA polymer, b) 10 to 60% of porous silica minerals such as vermiculite and perlite, c) 5 to 50% of an absorbent such as zeolite or activated carbon for small molecules such as ammonia and d) 5 to 60% by weight of an aqueous emulsion of a mixture of an active ingredient of one or more of a bacteriocidal, fungicidal or odor masking compounds. The device is effective at eliminating and masking odors under varying humidity conditions.

Abstract: A composition of polyolefin, ester additive, and hyperbranched polymer with improved tensile energy-to-break value compared to polyolefins wihtout the hyperbranched polymer. The concentration of the hyperbranched polymers can be between about 0.1% and about 10% by weight of the polyolefins. The polyolefins have a melt flow index of about 14 g/10 min or greater.

Abstract: Water-continuous emulsion of curable elastomeric polymers are disclosed having a solids content of greater than 75%, an average particle size less than 5 &mgr;m, and having sufficient stability to produce a stable lower solids emulsion upon dilution with water comprising; a curable elastomeric polymer, surfactant, internal cure additive, water, optional plasticizer, and optional low molecular weight acid.

Abstract: A dispersion has particles dispersed in a continuous aqueous dispersion medium. The particles, preferably no more than about 2 micrometers in size, are formed of a mixture of styrene-ethylene/butylene-styrene (S-EB-S) block copolymer having end blocks each with a weight average molecular weight of more than about 15,000 Daltons and an oil such as a mineral oil. The dispersion medium is a mixture of water and a surfactant. Articles are prepared by dipping a form into the dispersion and withdrawing the form to leave a film of the dispersion on the form. The water is evaporated from the film, leaving a coherent extensible film on the form.

Abstract: A method for the preparation of polymer particles comprising the steps of: a) forming an organic phase by dissolving a polymer material in a solvent; b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer and homogenizing the resultant dispersion, thereby forming spherical particles having a selected particle and uniform particle size distribution; c) following the homogenizing, adding a particle shape-modifying surface active material to the spherical particles; and d) removing the solvent, thereby producing irregularly shaped polymer particles having substantially the same selected particle size and particle size distribution as that of the spherical particles.

Abstract: The present invention is directed to a composition comprising:

Abstract: A method for the production of an improved water soluble resin binder for laminating printing inks has been discovered. The method comprises esterifying the carboxylated Diels Alder adduct produced from the reaction of rosin and at least one carboxylated dienophile with a sufficient amount of at least one polyol to produce a modified rosin having an acid number greater than 157. The modified rosin is reacted with a sufficient amount of an acrylic copolymer having an acid number greater than 180 under esterification conditions between 175 ° C. and 185 ° C. for a time sufficient to produce a resin binder having an acid number greater than 157. A laminating ink formulation of the invention comprises water, pigment, styrene-acrylic varnish, shellac varnish, alkanol and the improved water soluble resin binder of the invention as described above.

Abstract: A process for producing a vulcanizable rubber composition containing silica and carbon black, comprises the step of intimately mixing at a temperature of from 130° to 180° C. at least a first cross-linkable unsaturated chain polymer with a first carbon black-based reinforcing filler, so as to obtain a first rubber composition capable of allowing a subsequent effective dispersion of a second silica-based reinforcing filler and of a second cross-linkable unsaturated chain polymer. The rubber composition thus obtained shows a homogeneous dispersion of the reinforcing fillers, in particular of the silica-based reinforcing filler, constant physical-mechanical characteristics, and improved drawability, and is particularly suitable for the manufacture of tire treads with low rolling resistance.

Abstract: A paper transport belt and a paper handling apparatus containing a paper transport belt which is made from a composition containing an alkylated chlorosulfonated polyethylene polymer.

Abstract: Water-reducible resins, neutralized resins, and derivatized resins useful for water-borne and solvent-based coatings and inks, powder coatings, and anti-corrosive coatings are disclosed. The water-reducible resins are copolymers of a vinyl aromatic monomer, a propoxylated allyl alcohol, and an acrylic acid monomer. These low-molecular-weight resins uniquely contain both hydroxyl and acid functional groups, and allow controlled curing with a variety of crosslinkers in coating systems. Coatings of the invention are useful in many applications, e.g., automotive basecoats, industrial appliance coatings, and wood finishes.

Abstract: The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties. Cyclic organometallic compounds containing divalent metal atoms of Groups IIA and IIB of the Periodic System are employed as initiators of anionic polymerization of conjugated diene, vinyl aromatic and/or triene monomers. Coupling of the living ends of the resulting macrocyclic polymers or copolymers with a coupling agent or a coupling agent that is also a functionalizing agent results in stable macrocyclic polymers with improved hysteresis properties.

Abstract: The composition is constituted by a mixture comprising a thermoplastic material, a hydrolysable silane compound, an elastomer, and a peroxide, said thermoplastic material and said silane compound carrying respective groups that react with each other. The composition including a filler containing superficial hydroxyl groups. The composition is suitable for sheathing electric cables and wires.

Abstract: The subject invention provides a thermoset elastomer comprising a crosslinked pseudorandom or substantially random interpolymer of: (a) from 15 to 70 weight percent of monomer units derived from at least one a-olefin, (b) from 30 to 70 weight percent of monomer units derived from at least one vinylidene aromatic compound, and (c) from 0 to 15 weight percent of monomer units derived from at least one diene. The subject invention further provides a thermoplastic vulcanizate comprising the thermoset elastomers of the invention as provided in a thermoplastic polyolefin matrix. The subject invention further provides processes for preparing the inventive thermoset elastomers and thermoplastic vulcanizates, as well as parts fabricated therefrom. The inventive materials have a superior balance of properties, as compared to EPM and EPDM based materials. The subject invention also pertains to foams and methods for their preparation.

Abstract: The invention provides a physiologically acceptable polymer comprising a backbone to which are attached guanidino groups, the polymer having a minimum molecular weight of 10,000. The invention also extends to foodstuffs and pharmaceutical compositions comprising the physiologically acceptable polymer. Such foodstuffs and compositions are of value in controlling phosphate levels in the body.

Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.

Abstract: New polypropylenes which are obtained by chemical degradation of elastic polypropylenes using organic peroxides.

Abstract: The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties. Cyclic organometallic compounds containing divalent metal atoms of Groups IIA and IIB of the Periodic System are employed as initiators of anionic polymerization of conjugated diene, vinyl aromatic and/or triene monomers. Coupling of the living ends of the resulting macrocyclic polymers or copolymers with a coupling agent or a coupling agent that is also a functionalizing agent results in stable macrocyclic polymers with improved hysteresis properties.

Abstract: Tire curing bladders are made from poly(isobutylene-co-4-bromomethylstyrene) with a benzylic bromine content of from 0.15 to 0.45 mole percent, vulcanized with a cure system of 1,6-hexamethylene-bis(sodium thiosulfate) and zinc oxide. The vulcanizate has low residual benzylic bromine content which leads to enhanced stability under severe duty applications, reduced hot tension set, and reduced adhesion or co-cure to halobutyl tire innerliners.

Abstract: The invention comprises processes for the production of useful fluid or grease from curable silicone compositions or silicone rubbers, preferably reclaimed or scrap silicone rubber. The processes involve the application of energy in such a manner that a un-curable silicone grease or liquid that contains essentially all of the original material is produced from curable silicone compositions and grease or liquid is produced from silicone rubbers. Suitable energy forms include thermal and mechanical. The fluid or grease produced by the processes are useful as raw materials for the manufacture of silicone products such as: antifoam compounds (defoamers), greases, conformal coatings or rubbers. The materials produced by these processes were unexpectedly found to have exceptional antifoam properties without requiring the addition of other materials or further processing.

Abstract: Disclosed is an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer which is a random copolymer of (a) ethylene, (b) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene, and has such properties that (i) the copolymer contains (a) units derived from ethylene and (b) units derived from the .alpha.-olefin of 3 or more carbon atoms in a molar ratio of 40/60 to 95/5 ((a)/(b)), (ii) the iodine value is in the range of 1 to 50, (iii) the intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., is in the range of 0.1 to 8.0 dl/g, and (iv) the ratio g.eta.* of the intrinsic viscosity (.eta.) of the copolymer defined above to the intrinsic viscosity (.eta.).sub.blank of a linear ethylene-propylene copolymer having the same weight-average molecular weight as the ethylene-.alpha.-olefin-nonconjugated polyene random copolymer and having an ethylene content of 70% by mol, (.eta.)/(.eta.).sub.blank, is in the range of 0.2 to 0.

Abstract: Sulfonate salts produced by basic hydrolysis of chlorosulfonated ethylene/propylene polymers grafted with an unsaturated acid or anhydride having chlorine contents of 20-70 weight percent and sulfur contents of 1.5-10 weight percent, and 2-10 weight percent copolymerized ethylene units provide self-stabilized resin latexes of unusual stability.

Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.

Abstract: Self-stabilized resin latexes are provided which contain sulfonate salts produced by basic hydrolysis of chlorosulfonated C.sub.2 -C.sub.8 alpha-olefin polymers grafted with an unsaturated acid or anhydride, the polymers having chlorine contents of 20-70 weight percent and sulfur contents of 1.5-10 weight percent.

Abstract: Self-stabilized resin latexes are provided which contain sulfonate salts produced by basic hydrolysis of chlorosulfonated C.sub.2 C.sub.8 alpha-olefin polymers having chlorine contents of 20-70 weight percent and sulfur contents of 1.5-10 weight percent. Further provided is a novel composition comprising a chlorosulfonated graft-modified ethylene/propylene copolymer.

Abstract: A polyethylene composition which is useful in insulations and joints of extra-high voltage power cables, and in which a cross-linking agent, comprising an organic peroxide subjected to purification processing, and an antioxidant, are blended, wherein the cross-linked composition has a dielectric loss tangent (tan.delta.) of less than or equal to 0.07% at a temperature of 90.degree. C. and under an electric field stress of 20 kV/mm. This polyethylene composition exhibits little dielectric loss, even at high temperatures or high electric field stresses, and is optimally employed in insulations and joints for extra-high voltage power cables of 275 kV or more.

Abstract: Adhesive compositions based on chlorinated polyolefins having chlorine contents greater than about 60 percent and molecular weights greater than about 500. The adhesive compositions contain the chlorinated polyolefin and a crosslinking agent. The chlorinated polyolefins are advantageous in that they can be prepared in an environmentally acceptable manner and can be utilized as a substitute for the traditional chlorinated natural rubber materials utilized in adhesive compositions without compromising adhesive performance. Preferred chlorinated polyolefins are prepared by a process involving the dispersion and chlorination of high surface area polyolefinic particles in an aqueous medium.

Abstract: Self-stabilized resin latexes are provided which contain sulfonate salts produced by basic hydrolysis of chlorosulfonated C.sub.2 -C.sub.8 alpha-olefin polymers having chlorine contents of 20-70 weight percent and sulfur contents of 1.5-10 weight percent. Further provided is a novel composition comprising a chlorosulfonated graft-modified ethylene/propylene copolymer.

Abstract: A chlorinated ethylene/.alpha.-olefin copolymer rubber which is a chlorinated product of an ethylene/.alpha.-olefin copolymer rubber having a vinylidene bond at the terminal of the molecule, the number of said vinylidene bond being 0.05 to 1.00 per 1,000 carbon atoms, which has a chlorine content of 20 to 40% by weight, and which has a Mooney viscosity [ML.sub.1+4 (121.degree. C.)] of 10 to 190; and a composition comprising the chlorinated ethylene/.alpha.-olefin copolymer rubber, (a) a reinforcing agent, (b) a softening agent, and (c) a vulcanizing agent.

Abstract: A radiation curable functionalized polymer is disclosed. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with an acrylate or a mixture of acrylates and/or a photosensitizer and/or other functional groups at the para-alkyl groups of the para-alkylstyrene.

Abstract: Copolymers of propylene and a non-conjugated diene or triene of the formula (I): CH.sub.2 =CH(CHR.sup.4).sub.n CR.sup.1 =CR.sup.2 R.sup.3, where R.sup.1 and R.sup.2 are hydrogen or alkyl, but are not both hydrogen; R.sup.3 is alkyl or alkenyl of the formula (II): --(CHR.sup.8).sub.m CR.sup.5 =CR.sup.6 R.sup.7, where R.sup.5 and R.sup.6 are as defined for R.sup.1 (above), but are not both hydrogen; R.sup.7 is alkyl; each R.sup.8 is as defined for R.sup.4 (below); and m is 1 to 5; R.sup.4 is hydrogen or alkyl especially methyl; and n is from 2 to 5, can be made using highly stereospecific Ziegler-Natta polymerisation catalysts. The copolymers have 99.9 to 60, particularly 99.5 to 85, mole % propylene residues and 0.1 to 40, particularly 0.5 to 15, mole % diene residues. The copolymers have unexpectedly low solubility in organic solvents such as xylene and can be cross-linked, vulcanised or cured to give polymers having improved high temperature performance.

Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.

Abstract: An anionic polymerization initiator comprising the reaction product of a functionalizing agent selected from the group consisting of substituted aldimines, ketimines and secondary amines and, an organolithium compound. Elastomeric polymers prepared with these initiators have functional sites incorporated at the initiator end of the 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, functionalized polymers and vulcanizable elastomeric compounds having reduced hysteresis.

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: Compositions and designs useful for fabricating safety cushion and mat assemblies which have effective protection against injuries to persons falling from a height up to seven feet are disclosed. The safety cushion compositions have a shore hardness of about 68, comprises an ethylene/propylene rubber, an activator, an accelerator, a plasticizer, a vulcanizer, a filler, a processing aid agent and optionally a colorant or a whitener. In addition, compositions useful for fabricating a reinforced rubber anchor for securing the safety cushion and mat assemblies to the ground are disclosed. The rubber anchor composition has a shore hardness of about 73 and comprises a natural rubber, a processing aid agent, a plasticizer, a filler, an antioxidant, an antiozonant, an activator, an accelerator, a vulcanizer, an inhibitor and optionally a colorant or a whitener.

Abstract: An aqueous adhesive composition containing a chlorosulfonated polyethylene latex, a polymaleimide compound, a nitroso compound and a metal oxide. The adhesive composition can be effectively utilized without a primer component and exhibits an unusually high resistance to pre-bake conditions and adverse environments. The adhesive also possesses the ability to effectively bond a variety of substrates.

Abstract: A hose composition is provided which comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, fillers, rubber compounding additives and a curing agent. A hose comprising at least a portion made from this hose composition is also provided.

Abstract: There are provided pressure-sensitive adhesives which comprise free radical cured mixtures of at least one crosslinkable olefin polymer and at least one tackifying organic additive, preferably a hydrogenated additive, which is substantially nonresponsive to action of free radicals and present in an amount sufficient to tackify the cured mixture of polymer and additive.

Abstract: A composition suitable for coating fabrics is provided. The composition comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene; a filler; a processing aid, and a curing agent. A fabric coated with the composition is also provided.