Abstract: Rheology-modified thermoplastic elastomer compositions comprising a melt blend of an ethylene/&agr;-olefin polymer and a high melting polymer such as polypropylene or a propylene/&agr;-olefin copolymer wherein the rheology modification is induced by a combination of a peroxide and a free radical coagent. The resulting compositions have an elastomeric phase, a non-elastomeric phase and certain physical properties that exceed those of a like composition that is rheology-modified by peroxide alone. The compositions can be used to make a variety of articles of manufacture, such as automotive instrument panel skins, via calendaring and thermoforming procedures.

Abstract: A rubber composition comprising (a) a low molecular weight copolymer rubber which is an ethylene/&agr;-olefin/non-conjugated diene copolymer rubber having a limiting viscosity [&eegr;] of 0.4-1.6 dl/g measured in decalin at 135° C., and an ethylene content of 40-60 wt % and (b) a high molecular weight copolymer rubber which is an ethylene/&agr;-olefin/non-conjugated diene copolymer rubber having a Mooney viscosity (ML1+4,100° C.) of 60-150, an ethylene content of 60-80 wt %, and an iodine number of 5-35, wherein the difference between the iodine number of the low molecular weight copolymer rubber (a) and the iodine number of the high molecular weight copolymer rubber (b) is 5 or less and the ratio by weight of the low molecular weight copolymer rubber (a) and the high molecular weight copolymer rubber (b) is 50/50 to 80/20, the rubber composition having a Mooney viscosity (ML1+4,100° C.) of 20-50.

Abstract: An olefinic thermoplastic elastomer capable of producing a sheet applicable for preparing a covering skin sheet for interior furnishings in automobile superior in the formability, heat resistance, mechnical properties, tensile characteristics, strain restorability and repulsive elasticity together with superior grain retention performance upon a male vacuum forming of the sheet, the said olefinic thermoplastic elastomer comprising an olefinic resin and an olefinic copolymer rubber and having a characteristic feature that it satisfies, when a grained sheet made of the said elatomer is subjected to a male vacuum forming at least at a point of sheet temperature within the range of 130-150° C.

Abstract: A polyolefin blend including a propylene-based polyolefin-metal salt that is a reaction product of a propylene-containing polymer and a first organic monomer including a hydrophilic moiety that is at least partially neutralized with a metal ion, and an ethylene-based polyolefin-metal salt that is a reaction product of an ethylene-containing polymer and a second organic monomer including a hydrophilic moiety that is at least partially neutralized with a metal ion. Optionally, the blend includes a copolymer of ethylene and an alpha-olefin, and optionally one or more diene(s); a thermoplastic elastomer, such as an olefinic copolymer with styrene; a copolymer of ethylene, at least one alpha-olefin, and/or a monomer with a hydrophilic moiety. Also included are methods of preparing such blends, as well as the resultant articles.

Abstract: A styrene polymer represented by formula (1), terminated with P, and having a weight average molecular 1

Abstract: A process for producing a succinimide resin composition is provided which comprises reacting a maleic anhydride-olefin type copolymer constituted of 40-60 mol % of maleic anhydride units, 60-40 mol % of olefin units, and 0-20 mol % of a copolymerizable monomer units with one or more amine compounds for imide formation in the presence of a second polymer other than the succinimide resin. This process improves the productivity by lowering the torque in the extrusion reaction, giving a succinimide copolymer resin composition having low yellowness and high transparency with high production efficiency.

Abstract: An olefinic thermoplastic elastomer capable of producing a sheet applicable for preparing a covering skin sheet for interior furnishings in automobile superior in the formability, heat resistance, mechnical properties, tensile characteristics, strain restorability and repulsive elasticity together with superior grain retention performance upon a male vacuum forming of the sheet, the said olefinic thermoplastic elastomer comprising an olefinic resin and an olefinic copolymer rubber and having a characteristic feature that it satisfies, when a grained sheet made of the said elatomer is subjected to a male vacuum forming at least at a point of sheet temperature within the range of 130-150° C., the condition that the grain retention rate expressed by the proportion of the grain depth of the sheet retained after the male vacuum forming relative to the grain depth before the male vacuum forming represented by percent meets the relation defind by the following equation (1) % retention of grain≧100−2.

Abstract: A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.

Abstract: Thermoplastic polyolefin compositions useful for soft touch applications comprise, in weight percent based upon the weight of components A and B, about: A. 99 to about 1 percent of at least one polypropylene homopolymer or copolymer; and B. 99 to about 1 percent of at least one homogeneously branched ethylene/&agr;-olefin copolymer in which the &agr;-olefin contains at least 4 carbon atoms and the homogeneously branched copolymer has a crystallinity of less than about 3 percent.

Abstract: The present invention relates to a thermoplastic resin composition, more specifically to a thermoplastic resin composition with superior extrusion and calendar formability and directly coatable without using primer because the crosslinking density can be arranged to improve the physical and chemical properties of the composition and the solubility to the solvent is increased during the coating process by including processing oil, inorganic filler, crosslinking agent and crosslinking assistant in random polypropylene resin, highly-crystalline random polypropylene resin, highly-crystalline polyolefin resin, olefin copolymer rubber and low-density polyethylene resin. This thermoplastic resin composition may be suitable for the use as surface material of the inner parts of automobiles.

Abstract: The present invention provides a novel (meth)acrylate ester-based resin composition which, for example, exhibits various good properties such as weather resistance, heat resistance, water resistance, acid resistance, alkali resistance, warm water resistance, impact resistance, processability, flexibility, hardness, elongation, transparency, luster, fleshy property, mirroring property, pigment dispersibility, and driability when being used, for example, as crosslinking type paints, adhesives, pressure sensitive adhesives, and fiber-processing materials, and has so low a resin viscosity as to be utilizable as a resin for coping with environmental pollution of such as low-VOC paints.

Abstract: A blend composition (and fabricated articles therefrom) comprising; (A) one or more alkenyl aromatic polymers; (B) one or more substantially random interpolymers comprising (1) polymer units derived from; (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (c) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) polymer units derived from at least one of ethylene and/or a C3-20 &agr;-olefin; and (3) polymer units derived from one or more of ethylenically unsaturated polymerizable monomers other than those derived from (1) and (2); and, (C) one or more compatibilizers; and wherein said blend has; a) a tensile strength greater than 1500 psi; b) a pull force test (⅛″ diameter) greater than 15 lb; c) a Shore A Hardness greater than 79; d) a cycle time in injection molding of less than 30 sec.

Abstract: A process comprising powder moulding a polymer composition having a Shore D hardness value less than 40 points; said polymer composition comprising: 1) a polyolefin composition consisting of: i) 5 to less than 100 parts by weight of a crystalline or partially crystalline isotactic polymer of 1-butene; and ii) more than 0 to 95 parts by weight of a thermoplastic elastomeric polyolefin composition having a melt flow rate of 20-100 g/10 min; or 2) a polyolefin composition consisting of: iii) 100 parts by weight of a crystalline or partially crystalline isotactic polymer of 1-butene or composition (1); and iv) more than 0 to 100 parts by weight of an elastomeric polymer; provided that when the polymer of 1-butene is a homopolymer or a copolymer with less than 2 wt % of comonomer, polymer compositions (1) and (2) contain at least 5 parts by weight of an elastomeric polymer.

Abstract: An ethylene/&agr;-olefin polymer blend is described comprising first and second ethylene/&agr;-olefin polymer components in which the ethylene content of the first component is at least 10 weight percent different than the ethylene content of the second component. These blends exhibit an improved combination of low temperature, pellet flow, compression set, melt strength and/or shape retention properties as compared to either component, or an ethylene/&agr;-olefin polymer blend of similar composition but in which the ethylene content of each component is substantially the same.

Abstract: A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.

Abstract: Described are a thermoplastic resin composition containing (A): one or more rubber reinforced thermoplastic resins, (B): one or more acrylic resins and (C): one or more thermoplastic norbornene resins, and further containing (D): one or more styrenic resins other than (A) and (E): coloring agents as needed, and a shaped article obtained by forming the composition. Described thermoplastic resin composition is excellent in heat resistance, strength and processability, and excellent in laser marking properties, so that it is useful for various applications.

Abstract: A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.

Abstract: A thermoplastic elastomer composition for calender-molding obtained by dynamically heat-treating a mixture comprising 40 to 95% by weight of (A) an oil-extended olefin copolymer rubber containing 100 parts by weight of an olefin copolymer rubber having a Mooney viscosity (ML1+4100° C.) of 120 to 350 and 20 to 150 parts by weight of mineral oil softening agent and 60 to 5% by weight of (B) a polypropylene resin, a process for producing a calendered sheet from the composition and a sheet obtained by the process.

Abstract: A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an &agr;-olefin polymer, (ii) a copolymer of an &agr;-olefin and an &agr;-&ohgr;-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a <g′>vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.

Abstract: In accordance with the present invention, there are provided novel heterobifunctional monomers and uses for the same. Invention compounds have many of the properties required by the microelectronics industry, such as, for example, hydrophobicity, high Tg values, low dielectric constant, ionic purity, low coefficient of thermal expansion (CTE), and the like. These properties result in a thermoset that is particularly well suited to high performance applications where typical operating temperatures are often significantly higher than those at which prior art materials were suitable. Invention compounds are particularly ideal for use in the manufacture of electronic components, such as, for example, printed circuit boards, and the like.

Abstract: Herein is disclosed a blend of a neat oxygen scavenging polymer and a second polymer. The blend can be prepared by extrusion of a neat formulation of the oxygen scavenging polymer and the second polymer. Also disclosed are methods for preparing the neat formulation of the oxygen scavenging polymer, and packaging articles prepared from the blend. In addition, compositions comprising a branched oxygen scavenging polymer and a second polymer are disclosed, as well as packaging articles prepared from such compositions.

Abstract: Thermoformable films that contain a blend and/or composite structure containing an ethylene/vinyl or vinylidene aromatic polymer or an alpha-olefin/vinyl or vinylidene aromatic polymer, such as an ethylene/styrene interpolymer, a vinyl or vinylidene aromatic homo- or copolymer, such as polystyrene, and, optionally, an alpha-olefin homo- or copolymer serve as effective carrier layers for heat transfer foils.

Abstract: A resin composition characterized by comprising from 5 to 95 wt % of an aromatic vinyl compound/olefin random copolymer (A) which has an aromatic vinyl compound content of from 1 to 99 mol % and has a head-to-tail chain structure composed of two or more aromatic vinyl compound units, and from 95 to 5 wt % of an &agr;-olefin type polymer (B) and/or an aromatic vinyl compound type polymer (C) (provided that it is neither a medical material nor a medical device), which contains substantially no chlorine and is excellent in the impact resistance, moldability, weather resistance and chemical resistance and which is useful for an injection molded product, an extrusion molded product, a film, a sheet, etc. Further, it provides an excellent damping material.

Abstract: A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.

Abstract: A polyolefin blend is presented that includes a base component of a propylene-containing-polymer, such as polypropylene, a propylene-based polyolefin-metal salt, and an ethylene-based polyolefin-metal salt. Optionally, the blend includes a copolymer of ethylene and an alpha-olefin; a terpolymer of ethylene, alpha-olefin, and a diene; a thermoplastic elastomer, such as an olefinic copolymer with styrene; and/or a copolymer of ethylene, at least one alpha-olefin, and a monomer with a hydrophilic moiety. Methods of preparing such blends, as well as resultant articles including such blends, are also part of the invention.

Abstract: Blend compositions of ethylene inter-polymers have equal or improved processability when compared to blends of high pressure produced polyethylenes (HP-LDPE) and linear low density ethylene inter-polymers (HP-LDPE/LLDPE). Additionally, the blends of ethylene inter-polymers have superior optical and physical properties to the HP-LDPE/LLDPE blends. The ethylene inter-polymer blends include a first ethylene inter-polymer having, an nRSI greater than 26, a PDI of greater than 3, or less than 15, a CCLDI greater than 1.0, or less than 10.0, and a branching factor less than 0.7. These inter-polymer blends also include a second ethylene inter-polymer that has an nRSI of greater than 1 or less than 11, a PDI of greater than 1.5 or less than 6, a CCLDI greater than 1 or less than 20, and a branching factor greater than factor 0.70, or less than 1.

Abstract: A latex or fiber comprising a blend of polymeric materials consisting of one or more &agr;-olefin/ vinylidene monomer non-crosslinked substantially random interpolymers, wherein the distribution of the monomers of said interpolymers can be described by the Bernoulli statistical model or by a first or second order Markovian statistical model, and one or more homopolymers or copolymers of monomer components comprising aliphatic &agr;-olefins having from 2 to 20 carbon atoms, or aliphatic &agr;-olefins having from 2 to 20 carbon atoms and containing polar groups.

Abstract: The present invention provides a polymer composition having: a first component selected from homopolymers and copolymers of cyclic olefin containing polymers and bridged polycyclic hydrocarbon containing polymers, the first component being present in an amount from about 1-99% by weight of the composition; and a second component is selected from homopolymers and copolymers of a diene having from 4 to 12 carbons, the second component being present in an amount from about 99% to about 1% by weight of the composition.

Abstract: A styrene polymer represented by formula (1), terminated with P, and having a weight average molecular wherein R is OH or OR3 R1 is H or CH3, R2 is alkyl, R3 is acid labile group, x≧0, y>0, k≧0, m≧0, n>0, 0<q≦0.8, p+q=1, P is H, alkyl, alkenyl, aromatic, carboxyl, OH, —R4 (COR5)r, —R4O (OH)r or —R4 (OR5)r. A chemically amplified positive resist composition comprising the polymer as a base resin has high sensitivity and resolution and forms resist patterns having plasma etching resistance, heat resistance, and reproducibility.

Abstract: Thermoplastic compositions have been discovered which are suitable for rotational molding. The compositions have improved processability and/or improved physical and mechanical properties. The compositions advantageously often exhibit one or more of the following: reduced low shear viscosity, reduced melt elasticity at low shear rate, reduced cycle times, improved sintering and a wide range of processing temperatures, improved low temperature and/or room temperature impact, good environmental stress crack resistance, acceptable heat distortion temperature, and acceptable flexural and secant modulus.

Abstract: Thermoformable films that contain a blend and/or composite structure containing an ethylene/vinyl or vinylidene aromatic polymer or an alpha-olefin/vinyl or vinylidene aromatic polymer, such as an ethylene/styrene interpolymer, a vinyl or vinylidene aromatic homo- or copolymer, such as polystyrene, and, optionally, an alpha-olefin homo- or copolymer serve as effective carrier layers for heat transfer foils.

Abstract: This invention is based upon the discovery that cyclized polyisoprene polymers can be incorporated into tire tread compounds to improve traction, treadwear, and resistance to tear. It is further based upon the discovery that cyclized polyisoprene polymers can be blended with halobutyl rubber and/or natural rubber and can be utilized in tire innerliner formulations. The present invention more specifically discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of a sulfur cured rubber composition which is comprised of about 5 phr to about 50 phr of cyclized polyisoprene and about 50 phr to about 95 phr of at least one other rubbery polymer.

Abstract: A foam comprising a blend of polymeric materials consisting of one or more &agr;-olefin/vinylidene monomer non-crosslinked substantially random interpolymers, wherein the distribution of the monomers of said interpolymers can be described by the Bernoulli statistical model or by a first or second order Markovian statistical model, and one or more homopolymers or copolymers of monomer components comprising aliphatic &agr;-olefins having from 2 to 20 carbon atoms, or aliphatic &agr;-olefins having from 2 to 20 carbon atoms and containing polar groups.

Abstract: A sheet, film, fiber, foam or latex prepared from a blend of polymeric materials comprising a plurality of substantially random interpolymers comprising vinyl aromatic and ethylene and/or alpha olefin monomers and wherein: a) the amount of polymer units derived from said vinyl aromatic monomer in any interpolymer component differs from that amount in another interpolymer component by at least 0.5 mole percent; b) the amount of polymer units derived from said vinyl aromatic monomer in the blend is greater than about 19 mole percent; and wherein c) the observed stress relaxation of the resulting blend is greater than the additive stress relaxation of the of the individual blend components.

Abstract: A propylene polymer blend is disclosed which comprises (A) a propylene-&agr;-olefin random copolymer with a propylene content of 90 to 99% by weight and (B) a propylene-&agr;-olefin random copolymer with a propylene content of 55 to 90% by weight, wherein the intrinsic viscosity ([&eegr;B]) of the copolymer B ranges from 1.3 to 3.5 dl/g, the ratio ([&eegr;B]/[&eegr;A]) of the intrinsic viscosity ([&eegr;B]) of the copolymer B to the intrinsic viscosity ([&eegr;A]) of the copolymer A ranges from 0.5 to 1.3 and a product (([&eegr;B]/[&eegr;A])×(WA/WB)) of the intrinsic ratio ([&eegr;B]/[&eegr;A]) of both copolymers and the weight ratio (WA/WB) of both copolymers ranges from 1.0 to 4.5. A polypropylene resin composition comprises 99 to 99.9999% by weight of the propylene polymer blend and 1 to 0.0001% by weight of an &agr;-crystal nucleating agent.

Abstract: Disclosed are packages, cartons, cases, and trays comprising a hot melt adhesive, in turn comprising at least one first homogenous linear or substantially linear ethylene polymer having a particular density and melt viscosity at 350° F. (177° C.), up to 60 weight percent wax and up to 40 weight percent tackifier. In particular, disclosed are packages, cartons, cases, and trays comprising a hot melt adhesive characterized by: a) at least one homogeneous linear or substantially linear interpolymer of ethylene with at least one C3-C20 &agr;-olefin interpolymer having a density from 0.850 g/cm3 to 0.895 g/cm3; and b) up to 60 weight percent of at least one tackifying resin; and c) up to 40 weight percent of at least one wax, wherein the hot melt adhesive has a viscosity of less than about 5000 cPs (50 grams/(cm.second)) at 150° C.

Abstract: There is provided an olefin thermoplastic elastomer composition comprising the following components (A) and (B), said composition having been produced by first polymerizing a monomer of the component (A) and then polymerizing monomers of the component (B), said composition having such fractionation properties that, in temperature rising elution fractionation in the temperature range of 0 to 140° C. using o-dichlorobenzene as a solvent, the eluate obtained at 0° C. is 35 to 60% by weight based on the total elution weight and the eluate obtained at 80 to 100° C. is 1 to 5% by weight based on the total elution weight: (A) 30 to 60% by weight, based on the whole composition, of a propylene homopolymer component having an isotactic index of not less than 90%; and (B) 40 to 70% by weight, based on the whole composition, of a copolymer of propylene with other &agr;-olefin having 2 to 8 carbon atoms, said copolymer comprising propylene and ethylene as indispensable components.

Abstract: Masterbatches comprising high density polyethylene (HDPE) are used for the production of polyolefin articles, particularly films. Employing HDPE in a masterbatch alone or in combination with a hydrocarbon resin and/or a polyolefin ultimately results in extruded polyolefin articles of optimal stiffness and ductility. Employing a high density polyethylene in combination with a hydrocarbon resin and a polyolefin in a masterbatch causes the masterbatch to solidify more rapidly and be pelletized more efficiently.

Abstract: The present invention is directed to a high-performance irradiation sensitive positive-tone resist and to a method of formulating the same. In one aspect, the polymer resin composition of the present invention comprises a blend of at least two miscible aqueous base soluble polymer resins, wherein one of said aqueous base soluble polymer resins of said blend is partially protected with a high activation energy protecting group and the other aqueous base soluble polymer resin of said blend is partially protected with a low activation energy protecting group. A chemically amplified resist system comprising said polymer resin composition; at least one acid generator; and a solvent is also provided herein.

Abstract: Masterbatch including at least about 65 wt % of resin having a R&B softening point as measured in accordance with ASTM 28-67. The masterbatch also includes a carrier polymer having a peak melting temperature, as measured by DSC, up to about 20° C. greater than the R&B softening point of the resin. A masterbatch pellet made by a method, including mixing a resin having a R&B softening point as measured in accordance with ASTM 28-67, and a carrier polymer having a peak melting temperature, as measured by DSC, up to about 20° C. greater than the R&B softening point of the resin, to form masterbatch composition including at least about 65 wt % of resin. The method of making the masterbatch pellet also includes pelletizing the masterbatch composition into masterbatch pellet. Methods of making a masterbatch, methods for making polymer product, and a polymer product.

Abstract: A floor, wall or ceiling covering which comprises one or more substantially random interpolymers prepared by polymerizing one or more &agr;-olefin monomers with one or more vinylidene aromatic monomers and/or one or more hindered aliphatic or cycloaliphatic vinylidene monomers, and optionally with other polymerizable ethylenically unsaturated monomer(s). The floor, wall or ceiling covering has a good balance of properties, such as sufficient flexibility and conformability to uneven or contoured surfaces for efficient application to floors, walls, or ceilings, sufficient scratch resistance, sufficient indentation resistance, indentation recovery and/or sufficient abrasion resistance.

Abstract: A polyolefin resin composition comprises a component A consisting of polypropylene or a propylene-ethylene block copolymer whose MFR is greater than 16 (g/10 minutes); a component B consisting of an ethylene based rubber; and a component D compatible with the component B. A ratio of summation of the propylene-ethylene copolymer part in the component A, the component B, and the component D to summation of the components A, B, and D is 25 wt. % or more and 45 wt. % or less. Further, a ratio of the blend quantity of the component D to summation of the blend quantities of the components B and D is less than 0.8. In this manner, the bending elastic modulus and the tensile breaking extension are included in a desired region, while the tensile breaking extension is improved.

Abstract: A polyolefin modified to contain a pendant polar chain structure of at least 200 molecular weight and which has at least one ester group and at least one hydroxyl and/or oxirane group is a useful adhesion-promoting modifier for polyolefin resins.

Abstract: A fabricated article other than a film comprising a thermoplastic blend prepared from polymeric materials consisting of; (A) from 1 to 99 weight percent of at least one interpolymer made from monomer components comprising (1) from 0.5 to 65 mole percent of (a) at least one aromatic vinylidene monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one aromatic vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinylidene monomer, and (2) from 99.5 to 35 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and (B) from 99 to 1 weight percent of at least one polymer made from monomer components comprising at least one &agr;-olefin having from 2 to 20 carbon atoms. These articles possess improved properties when compared to the properties of articles derived from the individual polymers comprising the blend.

Abstract: Blends of polymeric materials comprising a plurality of substantially random interpolymers each interpolymer comprising:(1) from about 1 to about 65 mole percent of polymer units derived from either(a) at least one vinyl aromatic monomer or(b) at least one aliphatic or cycloaliphatic vinyl or vinylidene monomer, or(c) a combination of at least one vinyl aromatic monomer and at least one aliphatic or cycloaliphatic vinyl or vinylidene monomer, and(2) from about 35 to about 99 mole percent of polymer units derived from ethylene and/or at least one aliphatic alpha olefin having from 3 to 20 carbon atoms; and wherein:the amount of polymer units derived from vinyl aromatic monomer and/or aliphatic or cycloaliphatic vinyl or vinylidene monomer in any interpolymer component differs from that amount in another interpolymer component by at least 0.5 mole percent.These blends of interpolymer components give enhanced properties or processability when compared to the individual polymers comprising the blend.

Abstract: Thermoplastic vulcanizate blends are prepared from a semi-crystalline polymer and a rubbery copolymer derived from copolymerizing at least one alpha-olefin monomer and at least one cyclic olefin copolymer. The rubbery copolymer also includes repeat units from at least one polyene monomer. The polyene monomer provides residual unsaturation for crosslinking of said rubbery copolymer. Crosslinking the rubbery copolymer of the blend generally reduces tension set, compression set and oil swell in aliphatic solvents. The cyclic olefin monomer reduces oil swell in aliphatic oils.

Abstract: Disclosed are hot melt adhesives comprising at least one first homogeneous linear etylene polymer having a particular density and melt viscosity at 350.degree.F. (177.degree.C.), and an optional wax and tackifier. In particular, disclosed is a hot melt adhesive characterized by: a) at least one homogeneous linear or substantially linear interpolymer of ethylene with at least ibe C.sub.2 --C.sub.20 .alpha.-olefin interpolymer having a density from 0.850 g/cm.sup.3 to 0.895 g/cm.sup.3 ; and b) optionally at least one tackifying resin; and c) optionally at least one wax wherein the hot melt adhesive has a viscosity of less than about 5000 cPs (50 grams/cm.second) at 150.degree.C. Preferred hot melt adhesives for use in adhering cardboard or paperboard are disclosed, as well as the resultant adhered products. Also disclosed is a dual reactor process for the preparation of the inventive hot melt adhesives.

Abstract: A macromolecular material composition which comprises a macromolecular material and a modifier which comprises a polyvinyl cyclohexane compound having hydroindane structure. The modifier improves melt flow characteristics, flexibility at a low temperature, and mechanical characteristics, such as bending modulus and bending strength, of the material, and do not bleed or give bad smell.

Abstract: Disclosed is a curable resin which comprises at least one polymer selected from polymers each independently having a polymer chain represented by the following formula (I): ##STR1## wherein A to F are monomer units constituting a main chain of the polymer and are arranged in any order, and a to f are, respectively, wt % of A to F, based on the total weight of A to F; wherein each A is independently selected from cyclic olefin monomer units having no reactive group, each B is independently selected cyclic conjugated diene monomer units having no reactive group, each C to F is independently selected from comonomer units having no reactive group, and copolymerizable with A and B, wherein Q.sub.1 to Q.sub.6 are reactive groups, and wherein the average total number (J) of Q.sub.1 to Q.sub.6 of the at least one polymer satisfies: 1.ltoreq.(J).ltoreq.4, the polymer having an ME of from 1,000 to 5,000,000. A resin composition containing the curable resin is also disclosed.

Abstract: Masterbatches comprising high density polyethylene (HDPE) are used for the production of polyolefin articles, particularly films. Employing HDPE in a masterbatch alone or in combination with a hydrocarbon resin and/or a polyolefin ultimately results in extruded polyolefin articles of optimal stiffness and ductility. Employing a high density polyethylene in combination with a hydrocarbon resin and a polyolefin in a masterbatch causes the masterbatch to solidify more rapidly and be pelletized more efficiently.