Abstract: To provide a curable composition excellent in flexibility and heat resistance. A curable composition which comprises (A) a block copolymer having at least one kind of block formed from an aliphatic hydrocarbon compound and (B) an isobutylene polymer having a silicon group bound to a hydrolyzable group or a hydroxyl group. That composition can be used as sealants, adhesives, pressure sensitive adhesives, compositions for gaskets, double layer glazing spacers and so on.

Abstract: An olefin based copolymer composition having excellent weather resistance and excellent recycling properties having an olefin based copolymer obtained by copolymerizing two or more olefins, wherein the olefins are selected from the group consisting of ethylene, propylene and alpha olefins having 4 to 20 carbon atoms, and the total number of carbon atoms of the two or more selected olefins is 6 or more in combination with other component(s).

Abstract: Radiation curable adhesive comprising an epoxidized block copolymer, a saturated block copolymer and/or a rosin derived alcohol, and a photoinitiator.

Abstract: The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises (a) a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and (b) a block copolymer comprising: (i) at least one block derived from aromatic vinyl units and (ii) at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C. In a preferred embodiment, the block copolymer comprises at least one block of polystyrene and at least one block derived from isoprene, styrene and butadiene, and the polymer system comprises at least one polyamide resin.

Abstract: The present invention provides a multiple layer thermoplastic structure of a (1) skin layer selected from the group consisting of polypropylene, ethylene homopolymers having a density of from about 0.930 g/cc to about 0.960 g/cc, and ethylene homopolymers having a density of from about 0.930 g/cc to about 0.960 g/cc blended with an ethylene and a-olefin copolymers having a density less than about 0.930 g/cc, the skin layer having a thickness of greater than about 3.0 mils; (2) a radio frequency susceptible layer adhered to the skin layer, the radio frequency susceptible layer having a dielectric loss greater than 0.05 at 1-60 MHz and at temperatures of ambient to 250° C.

Abstract: An olefin-based copolymer composition comprising the following component (a) in combination with any one component selected from the following components (b) to (i):

Abstract: A blended composition consisting of a thermoplastic olefin resin (Comp. A) with an acrylonitrile-styrene-alkyl acrylate copolymer (Comp. B) was attempted to create substitution for vinyl chloride compound prepared from vinyl chloride resin proper and a plasticizer, but resulted in inferior interdispersibility. Incorporation of an epoxy resin (Comp. C) has brought definite improvement in the interdispersibility. A resinous composition including the components A, B, and C has the utility of substitution for vinyl chloride compounds as well as its products. (Comp. C) is selected from the group consisting of epoxidized diene block copolymers including, in their molecules, a block prepared by polymerization from a vinyl aromatic monomer and another block prepared by polymerization from a conjugated diene monomer, wherein remnant diene groups after the polymerization have been epoxidized or further partially hydrogenated.

Abstract: A molding material as based on from 60 to 98% by weight of a hard matrix A comprising polymerized or copolymerized units of at least one vinylaromatic monomer or at least one vinylaromatic monomer and at least one polar comonomer and from 2 to 40% by weight, the percentages in each case being based on the molding material comprising A and B, of a soft phase B formed from a hydrogenated or unhydrogenated block copolymer prepared by anionic polymerization and comprising a vinylaromatic monomer V and a diene D, having at least one random or quasi-random block (V/D) of vinylaromatic monomer and diene and containing from 10 to 80% by weight, based on the soft phase B, of occlusions of matrix material (a) formed during the polymerization of the hard matrix A in the presence of the block rubber, and said molding material is used for the production of films, sheets or moldings.

Abstract: The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption capacities under no load and under a load and further in the blocking ratio under a load, and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as sanitary materials; and such a water-absorbing agent. The water-absorbent resin is mixed and treated with an oxazoline compound, wherein the oxazoline compound has at least three structural units of general formula (1) below: wherein R1˜R4 separately denote a hydrogen atom, an alkyl group, an aromatic group, a halogen group, a substituted alkyl group, or a substituted aromatic group.

Abstract: A multiple layer structure comprising a skin layer composed of a polypropylene copolymer with styrene ethylene-butene styrene block copolymer within a range of 0-20% by weight skin layer, and, a radio frequency (“RF”) susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.

Abstract: A tearable film comprising a resin blend which is: (1) a blend of a first polymer which is a styrenic polymer and a second polymer selected from the group consisting of a polyester and a polyamide; or (2) a first polymer which is a polyester and a second polymer selected from the group consisting of a polycarbonate, an acrylic polymer and a polyamide. The film has an continuous phase and a dispersed phase, thereby forming an islands-sea structure, wherein the continuous phase constitutes 35-98 wt % and the dispersed phase constitutes 2-65 wt % of the film.

Abstract: A composition comprises (A) a syndiotactic styrene-based resin and (C) rubber polymer particles such as graft copolymers, butadiene or isoprene block copolymers optionally hydrogenated and/or modified with maleic anhydride, and other rubbers, and, optionally, (B) a thermoplastic resin such as a polycarbonate, and/or (D) a filler such as glass fibers.

Abstract: Thermoplastic manufactured articles are provided which exhibit an advantageous combination of high gloss and high environmental stress crack resistance, made from a polymeric composition comprising:(a) high impact polystyrene having a gloss at 60 degrees of greater than 85% and an impact resistance of greater than 0.7 ft-lb/inch;(b) high density polyethylene which has a density greater than or equal to about 0.94 g/cm.sup.3, and which has a stress exponent less than or equal to about 1.70; and(c) a compatibilizing polymer for components (a) and (b), selected from the group consisting of diblock styrene butadiene copolymers, triblock styrene butadiene copolymers, diblock styrene isoprene copolymers, triblock styrene isoprene copolymers, and mixtures thereof,wherein the gloss at 60 degrees of the composition is greater than or equal to about 85%, and the environmental stress crack resistance measured in minutes until breakage at 1000 psi is greater than about 60.

Abstract: A composition comprising discrete particles of elastomeric triblock copolymer, the particles having a Shore A hardness of less than 30 suspended in a continuous phase matrix of noncellular elastomeric polyurethane polymer, in which the triblock copolymer has the configuration A-X-A in which block A is polystyrene and block X is a polymer of butadiene, isoprene or copolymer of ethylene and butylene; the final composition having a Shore A hardness of less than 20.

Abstract: A rubber-modified styrenic resin composition comprising (A) 100 wt. parts of a rubber-modified styrenic resin which contains 10 to 35 wt. % of soft component particles having an average particle size of 0.1 to 0.5 .mu.m, where said soft component particles have a single occlusion structure comprising a core part which consists of a single continuous phase of a styrenic resin and a shell part which comprises a rubber polymer and occludes said core part, and (B) 0.1 to 10 wt. parts of a polymer having a solubility parameter (SP) of 8.45 to 8.70 and having no aromatic vinyl compound unit therein. This composition has excellent plane impact strength and gloss properties as well as moldability and other physical properties, and satisfies properties required for exterior materials, wrapping materials and molded foam articles.

Abstract: A polyamide resin composition superior in the shock resitance, especially low temperature shock resistence, in the rigidity and in the water absorption resistance, which comprises(A) 98-50 % by weight of a polyamide,(B) 1-40 % by weight of a modified ethylene/.alpha.-olefin copolymer having an MFR (190.degree. C.) of 0.05-50 g/10 min., obtained by a graft-copolymerization of 100 parts by weight of an ethylene/.alpha.-olefin copolymer (B-1) having an ethylene content of 40-93 mole % and a density of lower than 0.900 g/cm.sup.3, with, grafted thereon, 0.01-5 parts by weight of an unsaturated dicarboxylic acid or its derivative (B-2), and(C) 1-40 % by weight of at least one ethylenic copolymer selected from the group consisting of an ethylene/.alpha.-olefin copolymer (C-1) having an .alpha.-olefin content of 10 mole % or less, an Mw/Mn of 2.5 or lower and an MFR (190.degree. C.) of 0.05-50 g/10 min. and a modified ethylen/.alpha.

Abstract: A multiple layer structure comprising a skin layer composed of a polypropylene copolymer with styrene ethylene-butene styrene block copolymer within a range of 0-20% by weight skin layer, and, a radio frequency ("RF") susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.

Abstract: Graft copolymers are prepared by anionic polymerization which comprises reacting polymers (A) having at least one anionic chain end with polymers (B) which contain at least one nitrile group, in the presence of a solvent.

Abstract: A polymeric composition is provided comprising a random copolymer polypropylene, a hydrogenated block copolymer comprising at least two polymeric block containing predominately monoalkenyl aromatic hydrocarbon monomer units and at least one block containing a predominately hydrogenated, conjugated diene unit, and an elastic metallocene-based polyolefin. The polymer has improved impact strength and clarity, particularly at low temperatures.

Abstract: The invention relates to waterproof or water resistant compositions for application to the lashes comprising a styrene-ethylene-propylene copolymer as gellant, a film forming agent, and a volatile oil.

Abstract: The invention relates to melt-miscible polyolefin blends, and a process for preparing the melt-miscible blends, of two or more polyolefins. Matching, within defined limits, the segment length of a modifying polyolefin with the segment length of a primary polyolefin, such as polypropylene or an ethylene/alpha-olefin copolymer, provides blends of the "matched" components which blends were heretofore unknown to be melt-miscible. A broad range of polyolefin blend compositions, and of polyolefin blends containing other polymers made compatible or dispersible with the polyolefin blend compositions, are defined, all of the blend compositions having at least one melt-miscible polyolefin phase.

Abstract: Disclosed is a resin composition comprising (.alpha.) at least one polymer selected from the group consisting of a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer having a number average molecular weight of from 10,000 to 5,000,000, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, and (.beta.) at least one polymer other than the polymer (.alpha.), and wherein the polymer (.alpha.) is present in an amount of at least 1% by weight, based on the total weight of the polymers (.alpha.) and (.beta.). The molecular structure of the polymer (.alpha.) which is contained in the novel resin composition of the present invention and which is selected from a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, can be controlled with large freedom. Therefore by combining the polymer (.alpha.) with a polymer (.beta.

Abstract: A poly(ethyleneoxy) block copolymer including a hydrophobic block segment useful in making a porous polymer article with improved surface hydrophilicity. Also disclosed is a method of making such a polymer article.

Abstract: An amphiphilic block copolymer including a hydrophilic internal segment and polymeric articles made therefrom.

Abstract: A hemocompatible surface-modifying additive is provided for modifying polyurethane or polyurethane urea substrates. The additive has a polyurethane or polyurethane urea hard block or an alternative block which is miscible with the poly(urethane) or poly(urethane-urea) base polymer, a polysiloxane hydrophobic soft block, an optional hydrophilic spacer and a peptide selected from the group consisting of Arg-Gly-Asp, X-Arg-Gly-Asp, Arg-Gly-Asp-X and X-Arg-Gly-Asp-X', wherein X and X' are amino acids.

Abstract: The invention relates to melt-miscible polyolefin blends, and a process for preparing the melt-miscible blends, of two or more polyolefins. Matching, within defined limits, the segment length of a modifying polyolefin with the segment length of a primary polyolefin, such as polypropylene or an ethylene/alpha-olefin copolymer, provides blends of the "matched" components which blends were heretofore unknown to be melt-miscible. A broad range of polyolefin blend compositions, and of polyolefin blends containing other polymers made compatible or dispersible with the polyolefin blend compositions, are defined, all of the blend compositions having at least one melt-miscible polyolefin phase.

Abstract: A poly(ethyleneoxy) block copolymer including a hydrophobic block segment useful in making a porous polymer article with improved surface hydrophilicity. Also disclosed is a method of making such a polymer article.

Abstract: A poly(ethyleneoxy) block copolymer including a hydrophobic block segment useful in making a porous polymer article with improved surface hydrophilicity. Also disclosed is a method of making such a polymer article.

Abstract: A process for foaming polyurethane reactive hot melt adhesive comprising the steps of:a) melting a reactive polyurethane adhesive containing 0.05 to 0.5% by weight of a 2,2'dimorpholinodiethyl ether or di(2,6-dimethylmorpholinodiethyl)ether catalyst in a heated reservoirb) pumping the adhesive from the heated into a heated reservoir recirculating foaming device;c) foaming the adhesive by injecting therein an effective amount of an anhydrous gas;d) discharging a portion of the foamed adhesive through an orifice onto a substrate to be bonded; ande) recirculating the remaining foamed adhesive back to the foaming device for discharge at a later time.

Abstract: Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers, especially including block copolymers. Thus, polymers such as polystyrene/poly(methyl methacrylate) block copolymer or polystyrene/poly(1,2-butadiene) block copolymer are dissolved under pressure in supercritical fluid solvents such as chlorodifluoromethane and n-butane, respectively, and expanded through a fine nozzle. As the SCF solvent evaporates, the polymer deposits as a substantially homogeneous material.

Abstract: A vinyl chloride resin composition comprising 50 to 99.9 parts by weight of a vinyl chloride resin and 0.1 to 50 parts by weight of an aromatic vinyl compound block copolymer which is particularly a block copolymer of a styrenic monomer and a diene monomer and 0.01 to 15 parts by weight of a fatty acid or salts thereof having 6 to 34 carbon atoms. The composition has excellent processability and mechanical strength. Particularly, flowability in a lower temperature range and impact strength are improved.

Abstract: An antistatic nonflammable resin composition comprising: (A) 30 to about 80 weight percent a styrene resin; (B) 70 to about 20 weight percent of a vinyl chloride resin; (C) 0.5 to about 5 weight parts based on (A)+(B) of at least one antistatic agent selected from the group consisting of alkyl sulfonates and alkyl benzene sulfonates; and (D) 0.1 to about 5 weight parts based on (A)+(B) of at least one organic tin stabilizer containing sulfur. Molded articles from said composition possess a good appearance, excellent antistatic property and dust-repellency on the surface thereof.

Abstract: A composite is formed wherein particles of a conductive polymer are uniformly distributed within a processable non-conductive polymer. In the method of the invention, an inverted emulsion is formed by dispersing an aqueous solution of oxidant in an organic solvent comprising a host polymer and an oil-soluble surfactant. A monomer whose polymerization yields a conductive polymer which is dissolved in a solvent miscible with the organic solvent of the emulsion is then added dropwise to the emulsion with agitation. The composite is separated from the emulsion and the precipitate is washed and dried.

Abstract: Disclosed is a thermoplastic resin composition comprising:30 to 97% by weight of at least one of (a) a crystalline thermoplastic resin component and (b) a non-crystalline thermoplastic resin component, 3 to 70% by weight of (c) a rubbery polymer component which is ununiformly mixed with at least one of Component (a) and Component (b) and 0 to 40% by weight of (d) an inorganic filler,wherein Component (c) forms a network and at least one of the ratio of flexural modulus of Component (a) to Component (c) and that of Component (b) to Component (c) is 5 or more.

Abstract: Glass reinforced of epoxy modified styrene/styrene copolymer and one or more polymers of styrene, are provided.Methods of making these blends and articles made therefrom are provided.

Abstract: Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers, especially including block copolymers. Thus, polymers such as polystyrene/poly(methyl methacrylate) block copolymer or polystyrene/poly(1,2-butadiene) block copolymer are dissolved under pressure in supercritical fluid solvents such as chlorodifluoromethane and n-butane, respectively, and expanded through a fine nozzle. As the SCF solvent evaporates, the polymer deposits as a substantially homogeneous material.

Abstract: A bitumen and asphalt modifier comprises thermoplastic elastomeric copolymer and an effective amount of a fibrillated polytetrafluoroethylene and molybdenum disulfide particles. The thermoplastic elastomeric copolymer comprises two incompatible polymers forming a two-phase copolymer including a thermoplastic end block polymer and an elastomeric mid block polymer. The asphalt modifier is made by mixing together under high shear particles of a thermoplastic elastomeric copolymer, fibrillatable polytetrafluoroethylene and molybdenum disulfide until the fibrillatable polytetrafluoroethylene is substantially fibrillated and combined with the thermoplastic elastomeric copolymer.

Abstract: A continuous method for the in-situ polymerization of plastic in an elastomeric material in a form suitable for reinforcing the elastomeric material is provided. The method comprises feeding elastomer and a monomer or monomer precursor of a reinforcing material into a mixing device, mixing the elastomer and the monomer or monomer precursor vigorously, initiating polymerization, and causing the monomers to continue to polymerize until the polymer solidifies when the melting point of the polymer produced exceeds the mixing temperature of the elastomer, terminating polymerization.

Abstract: The morphology of a polymer alloy displaying miscibility over some region of composition and temperature may be varied by thermodynamically altering the miscibility, such as raising the temperature for an LCST system, to phase separate the components then quenching the alloy below the glass transition temperature of the matrix phase. Such phase separated alloys have improved toughness.

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.

Abstract: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and a thermoplastic styrene/diene block copolymer. A sheet of fiber-reinforced polypropylene is subjected to heat-lofting. Finally, the adhesive coated metal foils are mated on opposite sides of the heat-lofted polypropylene sheet under elevated temperature and pressure.

Abstract: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and linear low density polyethylene and thermoplastic styrene/diene block copolymer. A sheet of fiber-reinforced polypropylene is subjected to heat-lofting. Finally, the adhesive coated metal foils are mated on opposite sides of the heat-lofted polypropylene sheet under elevated temperature and pressure.

Abstract: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and a thermoplastic styrene/diene block copolymer. A sheet of fiber-reinforced polypropylene has both of its sides coated with a second thermoplastic styrene block/diene block copolymer which includes an acid or acid anhydride component. Finally, the adhesive coated metal foils are mated with the treated polypropylene sheet under elevated temperature and pressure for forming the composite article.

Abstract: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and linear low density polyethylene and thermoplastic styrene/diene block copolymer. A sheet of fiber-reinforced polypropylene is subjected to treating with a coating of a second thermoplastic styrene/diene block copolymer. Finally, the adhesive coated metal foils are mated on under elevated temperature and pressure.

Abstract: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and linear low density polyethylene. A sheet of fiber-reinforced polypropylene is subjected to treating with a coating of a thermoplastic styrene/diene block copolymer. Finally, the adhesive coated metal foils are mated on under elevated temperature and pressure.

Abstract: A resin composition comprising (A) a thermoplastic resin, (B) a functional compound having one or more bonds or one or more functional groups selected from the group consisting of organic groups having a non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups and (C) a diamino compound represented by the following general formula:R.sup.I NH--X--NHR.sup.IIwherein R.sup.I and R.sup.II each represents a hydrogen atom or an alkyl group optionally having one or more inactive substituents, and X represents an alkylene group having 7 to 30 carbon atoms and optionally having one or more inactive substituents.

Abstract: The present invention deals with flexible elastic polyurethane films, efficaciously having a thickness from 0.3 to 3 mm, prepared by sintering powdered thermoplastic polyurethanes, having:(a) a melt index of from 50 to 350, measured at 190.degree. C. with a compression force of 21.6 kg, and(b) a Shore A hardness of from 80 to 98, preferably while using from 0.05 to 1 part by weight of powdered aluminum oxide and/or silica gel per 100 parts by weight of said thermoplastic polyurethane, utilizing a heated mold.The polyurethane films are preferably used for coating molded articles used in the interior of motor vehicles.

Abstract: A fluororubber composition comprising 100 parts by weight of a rubber mixture which comprises 5 to 70% by weight of at least one rubber selected from the group consisting of diene rubbers and polyolefin rubbers and 95 to 30 by weight of a fluororubber and 1 to 20 parts by weight of a block copolymer which comprises a vinyl monomer and a fluorovinyl monomer, which has good compatibility between the rubber components and gives a cured material having improved chemical resistance, heat resistance, oil resistance, and the like.

Abstract: Resin blends having improved toughness and resistance to heat deformation are obtained by blending crystalline propylene polymers, random thermoplastic styrenic copolymers containing .alpha.,.beta.-unsaturated dicarboxylic acid anhydride, and amino- or hydroxy-functionalized elastomers. The amino- or hydroxy-functionalized elastomers may be formed in situ by the reaction of anhydride-functionalized elastomers and linking compounds having at least two active-hydrogen containing functional groups such as amino or hydroxyl.

Abstract: A hydrogenated block copolymer having a number-average molecular weight of 40,000-700,000, obtained by hydrogenating at least 80% of the olefinic bonds of a block copolymer having in the molecule at least one each ofa polymer block A composed of 90% by weight or more of a vinyl aromatic compound,a polybutadiene polymer block B having a 1,2-vinyl structure of 30-70%, anda polybutadiene polymer block C having a 1,2-vinyl structure of less than 30%,in which block copolymer the blocks A, B and C are contained at a specific ratio, or a unit of the block copolymer is bonded, via a coupling agent residue, to at least one polymer block unit of the blocks A, B and C and thereby the polymer molecular chain is extended or branched; and a thermoplastic resin composition comprising the hydrogenated block copolymer.