Abstract: Fasteners, drivers, punches, fastener systems, and methods of making fasteners, drivers, punches, and fastener systems are disclosed herein. The fasteners may include a recess having a groove in an inner transition surface. Corresponding drivers may include one or more stabilizing ribs for interfacing with the groove in the fastener recces for providing stability.

Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.

Abstract: This disclosure provides routes of synthesis of acrylic acid and other ?,?-unsaturated carboxylic acids and their salts, including catalytic methods. In an aspect, there is provided a process for producing an ?,?-unsaturated carboxylic acid or a salt thereof, the process comprising: (1) contacting in any order a group 8-11 transition metal precursor compound comprising at least one first ligand, at least one second ligand, an olefin, carbon dioxide, a diluent, and an anionic polyaromatic resin with associated metal cations to provide a reaction mixture; and (2) applying conditions to the reaction mixture suitable to produce the ?,?-unsaturated carboxylic acid or a salt thereof. Methods of regenerating the polyaromatic resin with associated metal cations are described.

Abstract: A bar extension system for supporting a suspended conduit in a vehicle and for engaging a tracker bar affixed to a mounting surface of the vehicle includes an extension arm extending away from the mounting surface of the vehicle and configured to support the suspended conduit, a bracket member coupled to the extension arm and configured to engage the tracker bar, a support arm coupled to the bracket member and angularly extending away from the bracket member and toward the mounting surface of the vehicle, and a support member coupled to the support arm and configured to press against the mounting surface of the vehicle.

Abstract: Catalyst systems having both a metallocene catalyst component and a Ziegler-Natta component are disclosed. Such catalyst systems can contain a metallocene compound, an activator-support, an organoaluminum compound, and a Ziegler-Natta component comprising titanium supported on magnesium chloride.

Abstract: The present invention discloses processes for oligomerizing an olefin feedstock containing C4 to C20 alpha olefins using a catalyst system containing a metallocene compound, an organoaluminum compound, and a suspension of a chemically-treated solid oxide. The liquid medium for the suspension of the chemically-treated solid oxide can be an alpha-olefin oligomer product formed by the oligomerization process.

Abstract: This disclosure provides for catalyst systems and processes for forming an ?,?-unsaturated carboxylic acid or a salt thereof. In an aspect, the catalyst system can comprise: a transition metal precursor comprising a Group 8-11 transition metal and at least one first ligand; optionally, at least one second ligand; an olefin; carbon dioxide (CO2); a diluent; and an oxoacid anion-substituted polyaromatic resin comprising a sulfonated polyaromatic resin, a phosphonated polyaromatic resin, a sulfinated polyaromatic resin, a thiosulfonated, or a thiosulfinated polyaromatic resin, and further comprising associated metal cations. Methods of regenerating the polyaromatic resin with associated metal cations are described.

Abstract: A composition comprising olefin oligomers of one or more olefin monomers, the olefin monomers comprising a branched C10 olefin monomer comprising i) 3-propyl-1-heptene, ii) 4-ethyl-1-octene, iii) 5-methyl-1-nonene, or iv) any combination thereof. A composition comprising substantially hydrogenated olefin oligomers, wherein the olefin oligomers are oligomers of one or more olefin monomers, the olefin monomers comprising a branched C10 olefin monomer comprising i) 3-propyl-1-heptene, ii) 4-ethyl-1-octene, iii) 5-methyl-1-nonene, or iv) any combination thereof. A process comprising a) contacting 1) a catalyst system and 2) a monomer feedstock comprising a branched C10 olefin monomer comprising i) 3-propyl-1-heptene, ii) 4-ethyl-1-octene, iii) 5-methyl-1-nonene, or iv) any combination thereof in a reaction zone; and b) forming olefin oligomers.

Abstract: A process includes periodically or continuously introducing an olefin monomer and periodically or continuously introducing a catalyst system or catalyst system components into a reaction mixture within a reaction system, oligomerizing the olefin monomer within the reaction mixture to form an oligomer product, and periodically or continuously discharging a reaction system effluent comprising the oligomer product from the reaction system. The reaction system includes a total reaction mixture volume and a heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect contact between the reaction mixture and a heat exchange medium. A ratio of the total heat exchanged surface area to the total reaction mixture volume within the reaction system is in a range from 0.75 in?1 to 5 in?1, and an oligomer product discharge rate from the reaction system is between 1.0 (lb)(hr?1)(gal?1) to 6.0 (lb)(hr?1)(gal?1).

Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.

Abstract: A system and method for a first reactor to produce a transfer slurry having a first polyolefin polymerized in the first reactor, a heat-removal zone to remove heat from the transfer slurry, and a second reactor to receive the transfer slurry cooled by the heat-removal zone, the second reactor to produce a product slurry having a product polyolefin which includes the first polyolefin and a second polyolefin polymerized in the second reactor.

Abstract: Disclosed herein are ethylene-based polymers produced using dual metallocene catalyst systems. These polymers have low densities, high molecular weights, and broad molecular weight distributions, as well as having the majority of the long chain branches in the lower molecular weight component of the polymer, and the majority of the short chain branches in the higher molecular weight component of the polymer. Films produced from these polymers have improved impact and puncture resistance.

Abstract: Multilayer cast films with an ethylene/?-olefin copolymer core layer, and inner and outer layers containing low density polyethylene homopolymers, and multilayer cast films with an ethylene polymer core layer, and inner and outer layers containing ethylene/?-olefin copolymers, are described. These cast films have a reduced tendency to block, and are useful in various food packaging applications.

Abstract: A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C.

Abstract: A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C.

Abstract: A system and method for a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. The shared temperature control path is configured to combine and process coolant return streams, and to provide coolant supply for the first reactor temperature control path and the second reactor temperature control path.

Abstract: A lubricating base stock comprising an alkyl aromatic, a blend of additives, a blend of oil soluble polyalkylene glycols and a blend of polyolefins. In the lubricating base stock, the blend of polyolefins comprises at least one metallocene polyolefin.

Abstract: A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a titanium compound, a solvent, and a surfactant.

Abstract: Disclosed herein are high melt flow polypropylene homopolymers generally characterized by a melt flow rate ranging from 200 g/10 min to 3000 g/10 min, a ratio of Mw/Mn ranging from 2 to 5, and a peak melting point ranging from 138° C. to 151° C. These polypropylene homopolymers can be produced by catalyst systems containing a racemic ansa-bis(indenyl)zirconocene compound, an activator-support, and an organoaluminum co-catalyst.