Abstract: The present invention relates to a multistage polymer in form of polymeric particles, its composition and its process of preparation. The invention also relates to a multistage polymer in form of polymeric particles made by a multistage process while the last stage comprises a polymer with a low molecular weight. The invention further relates to polymer compositions in form of polymeric particles made by a multistage process comprising at least three stages while the last stage comprises a polymer with a low molecular weight, its method of preparation, its use as impact modifier in polymer compositions for composites comprising thermosetting resins or thermoplastic polymers and compositions and articles comprising it.

Abstract: The present invention relates to the synthesis of polymer polyols in unsaturated polyols as liquid phase, polymer polyols and their use.

Abstract: A multi-modal polymer blend of at least three fractions as determined by TREF is provided. The blend comprises a first propylene-based polymer, a second propylene-based polymer; and a third propylene-based polymer; wherein when subjected to TREF, the polymer blend exhibits: a first fraction that is soluble at ?15° C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 55 mol % to about 85 mol %; a second fraction that is insoluble at ?5 C in xylene or dichlorobenzene and soluble at 40° C. in xylene or dichlorobenzene; and a third fraction that is insoluble at 70° C. in xylene or dichlorobenzene and having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %. Also provided are hot melt adhesive compositions comprising the polymer blend, tackifier, wax; and optionally a nucleating agent, articles containing the adhesive and methods of fabricating the articles.

Abstract: The invention relates to an elastomeric polymer composition and its preparation. The polymer composition includes, in combination, a single terminally modified conjugated diene (co)polymer and a dual terminally modified conjugated diene (co)polymer. The polymer composition is useful in the preparation of a vulcanized and, thus, crosslinked elastomeric composition having relatively low hysteresis loss, good grip and low heat build-up properties.

Abstract: The invention provides a composition comprising the following: A) a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs)/Mw(GPC)<2.2; and b) a MS versus I2 relationship: MS?C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=?0.55, c) a melt index (I2) from 0.1 to 0.9 g/10 min; and B) a second ethylene-based polymer; and wherein the second ethylene-based polymer has a melt index (I2) from 0.1 to 4.0 g/10 min.

Abstract: Provided are: a thermoplastic elastomer composition, excellent in both abrasion resistance and mechanical characteristics, obtained by heat-treating a mixture under molten condition thereof, the mixture including: 100 parts of at least one addition-polymerized block copolymer selected from a block copolymer and a hydrogenated product thereof; the block copolymer has a polymer block mainly including a structural unit derived from an aromatic vinyl compound and containing 1% by mass or more of a structural unit derived from a styrene having an alkyl group bonded to a benzene ring and a polymer block mainly including a structural unit derived from a conjugated diene compound, 10 to 300 parts olefin-based resin, 0.01 to 20 parts crosslinking agent; 1 to 50 parts crosslinking adjuvant containing one methacryloyl group, one acryloyl group, and one or more hydroxyl group, and 30 to 250 parts rubber softener; and a molded article including the said thermoplastic elastomer composition.

Abstract: A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a C3-10alkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

Abstract: Provided is a thermoplastic elastomer composition with which it is possible to obtain a molded article having exceptional low-temperature impact resistance. A thermoplastic elastomer composition is produced that contains a crystalline olefin polymer (A) and an ethylene-?-olefin (C4-20)-unconjugated polyene copolymer (B) that satisfies requirements (1) and (2). (1) The B value represented by the equation: ([EX]+2[Y])/(2×[E]×([X]+[Y])) is 1.20 or higher. [E], [X] and [Y] respectively indicate the molar fraction of structural units derived from ethylene, the molar fraction of structural units derived from C4-20 ?-olefin and the molar fraction of structural units derived from unconjugated polyene, and [EX] indicates the diad chain fraction of structural units derived from ethylene-structural units derived from C4-20 ?-olefin. (2) The molar ratio of structural units derived from ethylene with respect to structural units derived from ?-olefin (C4-20) of copolymer (B) is 40/60-90/10.

Abstract: Disclosed are sulfur-crosslinkable rubber mixtures that can be incorporated into treads of vehicle tires, and vehicle tires comprising the disclosed sulfur-crosslinkable rubber mixtures. The rubber mixtures comprise: at least one diene rubber, at least one silica, at least one hydrocarbon resin, and 1 to 40 phr of at least one liquid polybutadiene having terminal organosilicon modification and having a weight-average molecular weight Mw by GPC of 500 to 12 000 g/mol.

Abstract: This invention relates to a process for forming a long-chain branched polymer and a long-chain branched polymer resulting from the process. The process comprises reacting (a) a polyolefin base polymer with (b) a coupling agent comprising a polymeric coupling agent, optionally blended with a molecular coupling agent, the polymeric coupling agent being a modified polyolefin having a reactive coupling group at one or more terminal ends of the modified polyolefin chain, to couple the polyolefin base polymer (a) with the coupling agent (b) to form a long-chain branched polymer having a long-chain branching and/or higher surface energy relative to the polyolefin base polymer.

Abstract: The present disclosure relates to a method of preparing a heat-resistant SAN resin. More particularly, the present disclosure provides a method of preparing a heat-resistant SAN resin enabling provision of superior productivity and improved heat resistance and fluidity without generation of odor during processing, and a heat-resistant SAN resin composition prepared by the method.

Abstract: The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a z-average molecular weight Mz of more than 400,000 g/mole, and a process to make such composition. The composition is suitable for thermoformed articles and injection molded articles.

Abstract: A coating composition and coating products made therefrom, containing modified inorganic nanoplatelets that form mesomorphic structure in a resin phase. The coating products exhibit low permeation/penetration properties, and can be used as anti-corrosion or barrier coatings.

Abstract: Polyethylene composition for injection molding with a beneficial balance of environmental stress cracking resistance and impact resistance in combination with low warpage and beneficial processing behavior, said composition having the following features: 1) density of 0.945 g/cm3 or higher; 2) MIE from 1 to 30 g/10 min.; 3) ratio MIF/MIE from 15 to 30; 4) ER values from 0.40 to 0.52.

Abstract: Embodiments disclose a foamed, flame-proofed molded body, comprising at least one thermoplastic polymer including a zeolite material in an amount from 0.1 percent by mass to 5.0 percent by mass, based on the weight of the foamed polymer, wherein the thermoplastic polymer is selected from the group consisting of acrylonitrile butadiene styrene (ABS), styrene acrylonitrile (SAN), polystyrene (PS), polycarbonate (PC), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyamide (PA) or mixtures thereof. The foamed polymer further includes hydrous foam cells, and the zeolitic material is at least partially present in dehydrated form. Embodiments disclose a molding compound underlying the molded body, a method for foaming a thermoplastic polymer, and the use of the foamed molded body.

Abstract: An adhesive composition includes a first acrylic polymer preparable from first components and a second acrylic polymer. The first components comprising i) a branched first alkyl (meth)acrylate having from 4 to 22 carbon atoms, and ii) at least one of acrylic acid and methacrylic acid. The second acrylic polymer is preparable from second components comprising iii) at least one second alkyl (meth)acrylate having from 4 to 22 carbon atoms, iv) a (meth)acrylamide represented by the formula wherein R1 is H or methyl, and R2 and R3 each independently represents H or an alkyl group having from 1 to 8 carbon atoms, or taken together R2 and R3 may form a divalent alkylene group having from 4 to 6 carbon atoms, and v) at least one high Tg macromer having a terminal free-radically polymerizable unsaturated group, the high Tg macromer having a Tg of at least 45° C.

Abstract: Disclosed is an elastomer composition comprising polyolefin elastomer material which exhibits improved hysteresis properties, said elastomer composition having the following properties: (1) an average integrated enthalpy sum of no greater than 17 J/g according to the Thermal Analysis Method defined herein; (2) an average integrated enthalpy ratio of from 0.6 to 300 according to the Thermal Analysis Method defined herein; (3) an unload stress at 75% strain of above 0.8 MPa according to the Hysteresis Test defined herein; and (4) a load stress/unload stress ratio at 75% strain of 1 to 2.6 according to the Hysteresis Test defined herein.

Abstract: The present invention is a resin composition comprising a cycloolefin resin and at least two hydrogenated styrene-based thermoplastic elastomers, wherein a content of the cycloolefin resin is 50 to 90 wt % based on a total amount of the cycloolefin resin and the hydrogenated styrene-based thermoplastic elastomers, and a melt volume rate of the resin composition at 260° C. is higher than that of the cycloolefin resin at 260° C., and a resin formed article. One aspect of the invention provides a resin composition that exhibits excellent transparency, impact resistance and melt fluidity, as well as a resin formed article obtained by forming this resin composition. The resin formed article of the present invention is preferably used as a drug container, a medical instrument or the like, since it exhibits excellent transparency and impact resistance.

Abstract: Articles including a conductive metal substrate and a protective coating on the metal substrate are provided. The protective coating is electrochemically deposited from an electrodeposition medium including a silicon alkoxide and quaternary ammonium compounds or quaternary phosphonium compounds. Methods of electrochemically depositing such protective coatings are also described herein.

Abstract: An anti-corrosion composition includes a first compound including: a first polyisobutylene having an average relative molar mass ranging from about 30,000 to about 100,000 g/mole and a Staudinger index ranging from about 15-70 cm3/g, a first depolymerized butyl rubber with Brookfield viscosity at 66° C. ranging from about 400,000-2,000,000 mPa·s and an average molecular weight ranging from about 20,000-60,000, and combinations thereof. A second compound includes a second polyisobutylene having an average relative molar mass ranging from about 900,000-6,500,000 g/mole and a Staudinger index ranging from about 240-900 cm3/g, at least one second partly cross-linked butyl rubber with a Mooney viscosity at 127° C. ranging from about 65-100 MU. The anti-corrosion composition includes at least one first or at least one second polyisobutylene as well as at least one first or at least one second butyl rubber.