Abstract: The invention relates to an improved process for controlling the amount of crosslinking in polyolefin based articles such as fibers or films. The invention relates to mixing silane grafted material together with ungrafted material prior to crosslinking. The article can then be formed and cured, optionally with a curing catalyst which can preferably be applied to the surface of a shaped article. The amount of crosslinking will be controlled in part by the level of silane grafting on the grafted silane material as well as the amount of the grafted material in the blend.

Abstract: A mixing system is disclosed comprising at least one extensional flow mixer comprising: a generally open and hollow body having a contoured outer surface and having: a single entrance port and a single exit port; a means for compressing a bulk stream flowing through the generally open and hollow body in a direction of flow and at least one injected additive stream introduced at the single entrance port in the direction of flow; and a means for broadening the bulk stream and the at least one injected additive stream such that an interfacial area between the bulk stream and the at least one injected additive stream is increased as the bulk stream and the at least one injected additive stream flow through the generally open and hollow body in the direction of flow to promote mixing of the bulk stream and the at least one injected additive stream, a flow conductor having an axis and having a generally open and hollow flow mixer body secured therein; and a primary additive stream injector positioned at the entra

Abstract: The instant invention provides a method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process. The method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process comprises the steps of: (1) providing a polyethylene composition having a density in the range of 0.900 g/cm3 to 0.970 g/cm3 and an relaxation spectrum index (RSI) value in the range of 10 to 100; (2) oxygen tailoring said polyethylene composition; (3) thereby forming an oxygen tailored polyethylene composition, wherein the RSI value of the said oxygen tailored polyethylene composition increases from 10% to 300% of its initial value; (4) thereby improving the bubble stability of said polyethylene composition.

Abstract: A method of adhering a first component to a second component, comprising the steps of: adhering the two components together using a composition comprising a polyurethane and from 20 to 80 weight percent of a particulate metal, metal salt or metal alloy filler, wherein polyurethane is the reaction product of: a) a first polyol, the first polyol having a molecular weight of less than 1000; b) a second polyol, the second polyol having a molecular weight of from 1500 to 10000; c) at least one polyisocyanate; d) at least one curing agent, and wherein the particulate metal, metal salt or metal alloy filler has a thermal conductivity of at least 150 watts/m·° K; and curing the composition.

Abstract: This invention relates to bituminous compositions comprising an interpolymer and a bituminous material and methods of making and using same. The interpolymer may comprise ethylene, at least one alpha-olefin, and, optionally, at least one diene and the interpolymer is derived from polymer particles having a surface coating comprising a partitioning agent. Methods of making and using the bituminous compositions are also described.

Abstract: The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with an alkoxy amine derivative corresponding to the formula: (R1)(R2)N—O—R3 where R1 and R2 are each independently of one another, hydrogen, C4-C42 alkyl or C4-C42 aryl or substituted hydrocarbon groups comprising O and/or N, and where R1 and R2 may form a ring structure together; and where R3 is hydrogen, a hyrdrocarbon or a substituted hydrocarbon group comprising O and/or N. Preferred groups for R3 include —C1-C19alkyl; —C6-C10aryl; —C2-C19akenyl; —O—C1-C19alkyl; —O—C6-C10aryl; —NH—C1-C19alkyl; —NH—C6-C10aryl; —N—(C1-C19alkyl)2. R3 most preferably contains an acyl group.

Abstract: The present invention relates to particular ethylene-based polymer compositions suitable for use in binder fiber applications. The materials are characterized in having a peak recrystallization temperature in the range of from 85° C. to 110 C, and a Comonomer Distribution Constant (“CDC”) of 55 or greater. The materials are also characterized by having a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa·sec or less.

Abstract: The present invention relates to an improvement for gas phase olefin polymerization process under two or more different flow regimes. The process involves adding a mixed electron donor system to a reactor having two or more different flow regimes, wherein the mixed electron donor system comprises at least one selectivity control agent and at least one activity limiting agent. The invention is particularly well suited for reactor systems which include a regime characterized by having a low-velocity or high-solid holdup, which have been reported to have operational problems such as particle agglomeration and formation of polymer “chunks”.

Abstract: A method for multi-dimensional chromatography of a polyolefin polymer, comprising introducing a solution of the polyolefin polymer into a liquid flowing through a first liquid chromatography stationary phase or a field flow fractionation device and subsequently flowing the solution through a second liquid chromatography stationary phase, the second liquid chromatography stationary phase comprising graphitic carbon, the polyolefin polymer emerging from the liquid chromatography stationary phase with a retention factor greater than zero.

Abstract: In an improved process for telomerizing butadiene, contact butadiene and an organic hydroxy compound represented by formula ROH (I), wherein R is a substituted or unsubstituted C1-C20-hydrocarbyl and the organic hydroxy compound is not glycerol, in a reaction fluid in the presence of a palladium catalyst and a phosphine ligand represented by formula PAr3 (II), wherein each Ar is independently a substituted or unsubstituted aryl having a hydrogen atom on at least one ortho position, at least two Ar groups are ortho-hydrocarbyloxyl substituted aryls. The phosphine ligand has a total of two (2), three (3), four (4), five (5), or six (6) substituted or unsubstituted C1-C20-hydrocarbyloxyls, and optionally, any two adjacent substituents on an Ar group can be bonded to form a 5- to 7-membered ring.

Abstract: Viscoelastic polyurethane foam is prepared by using certain additives in the foam formulation. The additives include 1) alkali metal or transition metal salts of carboxylic acids; 2) 1,3,5-tris alkyl- or 1,3,5-tris (N,N-dialkyl amino alkyl)-hexahydro-s-triazine compounds; and 3) C1-12 carboxylate salts of quaternary ammonium compounds. The additives significantly improve processing and in particular permit the use of higher isocyanate indices, which helps to improve foam physical properties.

Abstract: A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor.

Abstract: A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure: [R1—O—C(O)—O—]xR2 wherein R1 is independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and R2 is an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are 2 atoms in the shortest chain connecting a first R1—O—C(O)—O— group and a second R1—O—C(O)—O— group.

Abstract: A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure: [R1—O—C(O)—O—]xR2 wherein R1 is independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and R2 is an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are from 3 to 4 atoms in the shortest chain connecting a first R1—O—C(O)—O— group and a second R1—O—C(O)—O— group.

Abstract: Multimodal polyethylene compositions are provided. Extrusion compositions including the multimodal polyethylene are provided. The extrusion composition further include a high pressure low density polyethylene and optionally other additives and/or polyethylenes. Extruded articles made from the polyethylene extrusion compositions are also provided.

Abstract: Disclosed is a low viscosity, low to no chloride containing epoxy resin formulation including a divinylbenzene dioxide as a component in the formulation; wherein the formulation is useful for the manufacture of capillary underfill compositions.

Abstract: A PVC-free plastisol composition is provided. The sealer comprises a one-component, PVC-free plastisol embodied in a hybrid epoxy-urethane composition. Alternatively, the sealer may be embodied in a hybrid epoxy-urethane-acrylic composition. The composition comprises a urethane component, an epoxy component, a curing agent and a catalyst. The composition my further comprise a solvent and a filler. An acrylic additive may also be used. The compositions may find broad use in any system that is baked at an elevated temperature.

Abstract: Disclosed is an improvement to a polyether preparation process that includes a coalescing step. Amine-initiated polyethers prepared using a mixed alkylene oxide feed tend to coalesce significantly more slowly than glycerin-initiated polyethers, particularly in processes that include a holding step and/or elevated temperature following an initial alkoxylation to form a pre-polymer. This improvement is to perform a remedial end-capping of the pre-polymer, which may include amine degradation products, using an alkylene oxide which contains at least (3) carbons, prior to the molecular weight-building alkoxylation with the mixed alkylene oxide feed. The rate and performance of coalescing thereafter may be substantially enhanced.

Abstract: The present invention is a fiber-polymer composite-supported conductor with a fiber-polymer composite core and a tubular metal conductor. The tubular metal conductor is on the core. Substantially all mechanical tension resulting from the disposition of the conductor is borne by the fiber-polymer composite core.

Abstract: The embodiments of the present invention provide for viscoelastic polyurethane foams made in the presence of a bismuth comprising catalyst. The viscoelastic polyurethane foam may be the reaction product of a reaction mixture including at least one polyol and at least one isocyanate, wherein the at least one polyol and the at least one isocyanate are reacted in the presence of at least one bismuth comprising catalyst, and wherein the viscoelastic polyurethane foam has a density of less than 100 kg/m3 and a resilience of less than about 25%.