Abstract: Disclosed is an ethylene copolymer rubber which is a random copolymer rubber of (a) ethylene, (b) an .alpha.-olefin of 3 to 20 carbon atoms, (c) a nonconjugated polyene containing, in one molecule, one carbon-to-carbon double bond polymerizable by a metallocene catalyst among carbon-to-carbon double bonds, and (d) a nonconjugated polyene containing, in one molecule, two carbon-to-carbon double bonds polymerizable by the metallocene catalyst among carbon-to-carbon double bonds. The ethylene copolymer rubber has excellent moldability, high vulcanization rate, good mechanical properties such as high vulcanization strength, excellent low-temperature flexibility and thermal aging resistance. Also disclosed is a process for preparing the ethylene copolymer rubber with high activity, high conversion ratio of .alpha.-olefin and high random copolymerizability.

Abstract: A resin composition comprising 30-95 parts by weight of a thermoplastic norbornene resin and 5-70 parts by weight of a spherical inorganic filler having an average particle diameter of 0.05-50 .mu.m; and a precision molding produced therefrom.

Abstract: Novel tackifier resins having a M.sub.n of 5,000 or less and a T.sub.g of 0.degree. C. or above are produced by combining a metallocene catalyst with an alpha-olefin and a cyclic monomer. New adhesives are produced by blending the novel tackifier with a base polymer.

Abstract: A rubber composition excellent in shape-retainability also in processibility, compression set and the like, which comprises a single ethylene-.alpha.-olefin-non-conjugated diene copolymer which has (1) a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 80 to 200, (2) a weight average molecular weight/number average molecular weight ratio of 6 or more as measured by a gel permeation chromatography (GPC), and (3) a stress-retention of 0.2 or more after 100 seconds at 80.degree. C. in a compression type stress-relaxation test.

Abstract: A process for effectively producing a cyclic olefin polymer and a cyclic olefin/alpha-olefin copolymer without opening the cyclic olefin, is disclosed. Further, a novel cyclic olefin/alpha-olefin copolymer prepared by the above-mentioned process, compositions and molded articles comprising the novel copolymer, are also disclosed. In the process for producing a cylcic olefin based polymer according to the present invention, homopolymerization of a cyclic olefin or copolymerization of a cyclic olefin and an alpha-olefin is effected in the presence of a catalyst comprising, as main ingredients, the following Compounds (A) and (B), and optionally Compound (C):(A) a transition metal compound;(B) a compound capable of forming an ionic complex when reacted with a transition metal compound; and(C) an organoaluminum compound.

Abstract: A polymer having the function of water treatment and labeled with a fluorescent substance having a allyl group is disclosed. A process for producing the polymer for water treatment having the function of water treatment and labeled with a fluorescent substance having allyl group comprises copolymerizing a fluorescent substance having allyl group obtained by introducing allyl group into a fluorescent substance using a Grignard reagent with a monomer having a polymerizable double bond. The polymer having the function of water treatment and labeled with a fluorescent substance having an allyl group can be obtained under atmospheric pressure. Concentration of the polymer for water treatment can be measured conveniently, accurately and quickly. Therefore, concentration of the polymer in water can be easily adjusted to the optimum value. Degradation of the labeled polymer by chlorine can be prevented when an agent for water treatment containing the labeled polymer and a hydantoin compound is used.

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: A flexible single- or multilayer non-oriented or mono- or biaxially oriented film in which at least one layer comprises a cycloolefin copolymer, wherein the cycloolefin copolymer has a mechanical loss factor (tan .delta.) of .gtoreq.0.015 at 50.degree. C. below the glass transition temperature.

Abstract: Tackifiers having Mn's of 5,000 or less and Tg's above 0.degree. C. are produced by combining a single site catalyst with an alpha-olefin and a cyclic monomer under conditions designed to produce low molecular weight.

Abstract: A film including semi-crystalline cycloolefin copolymers which have a content of catalyst residues of <100 ppm and their use as capacitor films, reproduction films, film keyboards and film switches, substrates for liquid crystal displays and packaging films.

Abstract: A gellable composition for oil field operations and a process for accelerating the gelation of the gellable composition for shut-in well are disclosed. The composition comprises: (1) an ammonium ion donor; (2) a water soluble acrylamide-containing polymer; (3) a first crosslinking component selected from the group consisting of aldehydes and aldehyde-generating compounds; (4) a second crosslinking component selected from the group consisting of an aromatic compound and an alcohol where the aromatic compound is selected from the group consisting of phenols and acids; and (4) water.

Abstract: The invention relates to spinning finishes in the form of aqueous emulsions or aqueous solutions containing water-soluble polymer compounds hvaing weight average molecular weights of more than 10.sup.6.

Abstract: A molded article is produced by metathesis polymerization of a mixture containing at least one metathesis polymerizable monomer, a metathesis polymerization catalyst and an organic or inorganic filler material which has been treated with a vinyl-substituted silane coupler having at least one hydrolyzable group in addition to the vinyl group.

Abstract: A pigmented polymeric composition of matter is provided which comprises units derived from ring-opening metathesis catalyst polymerization of a norbornene-type monomer or mixtures of norbornene-type monomers, and from about 0.05 to about 25 parts by weight, per 100 parts norbornene-type monomer, of carbon black which is substantially free of oxygen.

Abstract: Impregnating compositions are described comprising dicyclopentenyl acrylate or methacrylate together with a C.sub.5 to C.sub.8 alkyl ester of acrylic or methacrylic acid.

Abstract: A rubber composition having improved weather resistance, thermal resistance, resistance to crack growth and wear resistance comprises not less than 20 parts by weight of a rubber composed mainly of ethylene, propylene and diene and satisfying all of particular requirements. Further, the rubber composition is applied to a tread and/or a sidewall of a pneumatic tire for improving a tire appearance.

Abstract: Disclosed is a micro gel particle having a cationic charge, which is electrodepositable. The micro gel particle is obatined in the form of aqueous dispersion. The micro gel particle dispersion is prepared by a process comprisingemulsifying in an aqueous medium a resin composition comprising(A) 100 parts by weight of a cationic film-forming aqueous resin, and(B) 10 to 250 parts by weight of a thermosetting crosslinking agent which is self-crosslinked or crosslinked with said aqueous resin (A) in terms of condensation or addition reaction;parts by weight being based on the solid content of the resin composition, andheating the resultant emulsion to above a crosslinkable temperature of said crosslinking agent (B).

Abstract: Disclosed is a composition that is polymerizable by contacting it with an olefin metathesis catalyst comprising dicyclopentadiene, red phosphorus, and a brominated aromatic compound selected from the group consisting of decabromodiphenyl oxide, N,N'-ethylene-bis-(tetrabromophthalimide), brominated polystyrene, brominated polyphenylene oxide, tetradecabromodiphenoxy benzene, tetrabromoxylene, and octabromodiphenyl oxide.

Abstract: Vulcanizable elastomeric roof sheeting or flashing compositions comprising a vulcanizable elastomer, a metallurgical carbon and a vulcanizing agent are provided. The compositions may additionally contain conventional thermal or furnace type carbon blacks and other conventional rubber chemical additives. The compositions while lower in cost than elastomeric roof sheeting or flashing compositions containing conventional carbon blacks exhibit comparable physical properties in most instances.

Abstract: A composition and method for polymerization of cycloolefins using a feed stream including an iodide containing activator to form a substantially cross-linked polymeric product. The polymeric product may be formed by polymerization in an intricately shaped mold and/or be of ultra-low density. High glass transition temperature and fiber reinforced products are formed.

Abstract: This invention relates to an elastomer composition which is suitable for use as windshield wiper material. The composition comprises elastomer having a fully saturated backbone, curing agent for the elastomer in amounts sufficient to crosslink the elastomer, at least 25 weight percent particulate graphite, based on the weight of the elastomer and reinforcing particulate filler. The particulate graphite modifies the frictional properties of the elastomer. The composition has excellent weatherability and low friction and thus is ideally suitable for making windshield wiper blades.

Abstract: Aqueous vinyl ester copolymer emulsions possessing good dry pick and wet pick strengths in paper coating compositions comprise a vinyl ester copolymer colloidally dispersed in an aqueous medium, the copolymer consisting essentially of (a) a vinyl ester of a C.sub.1 -C.sub.12 alkanoic acid, (b) about 0.1 to 10 wt % of an ethylenically unsaturated mono- or dicarboxylic acid or half ester thereof, (c) about 0.05 to 10 wt % of a dicyclopentadienyl acrylate, and (d) 0-50 wt % of an alkyl acrylate.

Abstract: Ionomeric polymer compositions are provided which comprise an ionomeric polymer and about 5 to about 125 parts by weight of gilsonite, per 100 parts by weight of the ionomeric polymer. The inventive compositions can be formulated as processable materials which can be fabricated into articles such as sheets, tubes, and films having improved tear propagation resistance and fire retardance and decreased levels of water absorption.

Abstract: The present invention relates to a method of binding particles, in particular dental filling materials, comprising incorporating into the materials at least one compound selected from the group of diacrylic and dimethacrylic acid esters of the general formula ##STR1## wherein R.sup.1 is a divalent araliphatic, cycloaliphatic or aromatic group having 2 to 18 carbon atoms; R.sup.2 is hydrogen or methyl; R.sup.3 is a --CH.dbd.CH-- or --(CH.sub.2).sub.n -- wherein n is 2 to 4, a substituted, unsubstituted or hydrogenated benzene group, cyclohexane, or cis-norbornene group and R.sup.4 is H or ##STR2## wherein R.sup.5 is n-butyl, isobutyl, hexyl, substituted or unsubstituted phenyl or cyclohexyl. Dental restoratives and filling materials are also disclosed.

Abstract: A hydrocarbon resin consisting essentially of a copolymer of (A) an unsaturated chain hydrocarbon or a cyclic hydrocarbon having a vinylidene group and (B) 9,10-dihydrodicyclopentadiene or its derivative, or a hydrocarbon resin modified by addition reacting an ethylenically unsaturated carboxylic acid or its anhydride, or hydrogen, to the above-mentioned copolymer. The hydrocarbon resin and the modified hydrocarbon resin have a high softening point and a low melt viscosity, and are suitable for use in adhesives and traffic paints.

Abstract: An emulsion polymerized latex copolymer used as a binder in paper-coating compositions with improved dry and wet binding strength comprising an ester of an ethylenically unsaturated carboxylic acid and a saturated alcohol and a hetero-unsaturated monomer selected from the group consisting of allyl acrylate, allyl methacrylate, crotyl acrylate or crotyl methacrylate. A paper-coating composition in the form of an aqueous dispersion comprising a pigment and said emulsion polymerized latex copolymer is further characterized in that said pigment is present in an amount from about 99 to about 77 weight percent based on total dry solids. A coated paper article in the form of a fibrous sheet coated on at least one surface with the paper-coating composition is also provided.

Abstract: A hydrocarbon resin consisting essentially of a copolymer of (A) an unsaturated chain hydrocarbon or a cyclic hydrocarbon having a vinylidene group and (B) 9,10-dihydrodicyclopentadiene or its derivative, or a hydrocarbon resin modified by addition reacting an ethylenically unsaturated carboxylic acid or its anhydride, or hydrogen, to the above-mentioned copolymer. The hydrocarbon resin and the modified hydrocarbon resin have a high softening point and a low melt viscosity, and are suitable for use in adhesives and traffic paints.

Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.

Abstract: A method and apparatus of taking a solid, high molecular weight EPM or EPDM polymer into solution in oil as a shear stable viscosity index improver comprising passing the polymer through an extruder at elevated temperature for degradation of the polymer and circulating hot oil across the die face of the extruder while reducing the degraded polymer to particle size upon issuance from the extruder and into the hot oil.

Abstract: This invention concerns coating and impregnating compositions for concrete of an essentially anhydrous character comprising (1) a monomer blend of (a) dicyclopentenyl or dicyclopentenyloxyalkyl methacrylate or acrylate and (b) hydroxy alkyl methacrylate and (2) a polymerization catalyst of (a) an organic peroxide and an aromatic amine accelerator, or (b) a polyvalent metal salt or complex and an organic hydroperoxide, or (c) mixtures of (a) and 0.0005% to 2% by weight, based on total amount of monomers, of a polyvalent metal salt or complex, or (d) mixtures of (a) and (b), which can be applied to porous surfaces such as concrete as an impregnant and which can be polymerized in situ in order to reduce the permeability of the surface and to provide hard, continuous, hydrophobic, wear resistant and weather resistant surfaces.

Abstract: Crosslinkable polymers and co-polymers are treated with boric acid, boric acid anhydride, or mixtures thereof prior to crosslinking with free radical organic peroxide initiators in the presence of oxygen. This pre-treatment prevents stickiness of the surface of the crosslinked polymer making the crosslinked polymer more commercially acceptable.

Abstract: Disclosed is an acrylic curable composition of improved flexibility that cures rapidly at room temperature in the presence of acrylic catalysts. The composition comprises between about 70% and 95% by weight dicyclopentenyl oxyethyl methacrylate and between about 5% and 30% of a linear polyalkylene glycol diacrylate or dimethacrylate cross-linking agent. Excellent flexibility and strength are achieved by use of the named cross-linking agents within the critical range set forth.

Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.

Abstract: There are disclosed polymer concrete compositions of essentially anhydrous character comprising (1) an inert inorganic particulate material, such as sand, crushed stone or rock, and mixtures thereof, mixed with (2) a monomer blend of (a) dicyclopentenyloxyalkyl methacrylate or acrylate and (b) hydroxyalkyl methacrylate to form a paste or slurry suitable upon addition thereto of (3) a polymerization catalyst of (a) an organic peroxide and an aromatic amine accelerator, or (b) a polyvalent metal salt or complex and an organic hydroperoxide, or (c) mixtures of (a) and 0.0005% to 2% by weight, based on total amount of monomers, of a polyvalent metal salt or complex, or (d) mixtures of (a) and (b), to be used to form or to patch previously formed or laid, concrete floors and road pavements or as a coating for a variety of substrates such as metal and plastic sheet.

Abstract: A binder composition which contains certain fulvenes and/or prepolymers thereof, and a metal salt catalyst.

Abstract: This invention relates to blends of polypropylene and styrene-terpene copolymers which provide biaxially oriented, corona discharge treated, heat-sealable films useful in the packaging art.Preferably the compositions also contain a saturated fatty amide, e.g., stearamide slip agent and/or a Fischer-Tropsch wax.A process is described when the films after biaxial orientation, are treated by a corona discharge and in some cases heat aged prior to use in the packaging art.

Abstract: The specification discloses a lithographic ink vehicle containing an addition copolymer of ethylenically unsaturated monomers having a critical calculated second order transition temperature (T.sub.g), and a critical molecular weight, utilizing as the essential solvents in the ink a predominantly aliphatic hydrocarbon having a kauri-butanol value of between about 18 and 31, preferably between about 21 and 28, in which the polymer must be soluble. Among the preferred monomers are isobornyl methacrylate and isobutyl methacrylate. Other ethylenically unsaturated monomers may be included, particularly functional monomers in small amounts having acid or amine groups.

Abstract: The disclosed water stopper and water stopping process use an aqueously-swelling water-stopping composition consisting of 10 to 40 weight % of rubber whose main ingredient is reclaimed rubber, 10 to 20 weight % of silicic compound, 10 to 60 weight % of bentonite, and 10 to 40 weight % of plasticizer. The aforesaid water-stopping composition may be extruded into an elongated water stopper with or without a core therein, which water stopper can be inserted into a joint gap or other gap of structural members to stop water at the gap.

Abstract: This invention relates to hot melt adhesive compositions which include a neutralized sulfonated elastomeric polymer, wherein the neutralized sulfonated elastomeric polymer has about 10 to about 100 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated elastomeric polymer, and about 25 to about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, aliphatic dienes and mono- and di-olefins, cyclic olefins of 5 to 6 carbon atoms and hydrogenated poly cyclics per 100 parts by weight of the neutralized sulfonated elastomeric polymer. The hot melt adhesive composition can further include an unsaturated hydrocarbon resin such as polyisoprene.