Abstract: Ethylene polymers having a) a Polydispersity Index of about 2 to about 4; b) a melt index, MI, and Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup.0.6) is about 2.5 to about 6.5; c) a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, of about 1.0 to about 9; and d) a density, .rho., and a percent haze when fabricated into films such that the percent haze is less than 370.rho.-330, are provided. These ethylene polymers advantageously combine superior clarity and toughness with low extractables and enhanced processing ease.

Abstract: A catalyst composition for the polymerization of olefins is provided, comprising a bis(hydroxy aromatic nitrogen ligand) transition metal catalyst precursor and an activating cocatalyst.

Abstract: A process for the polymerization of an olefin which employs as the catalyst composition the reaction product of a) a monocycloalkadienyl catalyst precursor; b) an activity enhancing cycloalkadiene; and c) an activating cocatalyst is disclosed.

Abstract: A method for preparing an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reactor a single site catalyst precursor with an activating cocatalyst before, during, or after contacting the single site catalyst precursor with a weakly coordinating electron donor such as 1-hexene.

Abstract: A new method is provided to impart a hydrophilic lubriciious coating onto articles such as medical devices. A device, for example a catheter, is first contacted with a polyisocyanate solution, to provide coupling, then contacted with a poly(carboxylic acid) solution to give a coating, and is then finally oven dried. These coatings have lubricity that only becomes manifest upon exposure to water ro body fluids, and moreover, are also long lasting and have good abrasion resistance. This combination of properties is not available from other currently used or proposed coatings.

Abstract: The resolution and stability of liquid, dual-tone photoresist formulations containing novolac resins and photoactive compounds are enhanced by the incorporation therein of certain carbodiimide resolution enhancers.

Abstract: Antimicrobial compositions, containing 2,2-dibromo-2-nitroethanol, are fast acting and more effective than other halonitroalknaols, while particularly effective in industrial cooling water, pulp and paper manufacture, and for inhibiting sulfur-reducing bacteria growth in oil and gas well recovery.

Abstract: A curable composition based on a cycloaliphatic polyepoxide, a polytetramethylene oxide polyol and a photoinitiator; and a circuit board having as a conformal coating thereon, the cured product of the curable composition.

Abstract: Sulphur dioxide is removed from gas streams by contacting the gas stream with an absorbing medium containing less than about 80 wt. % of water and the spent absorbing medium subsequently is regenerated by removing absorbed SO.sub.2. The absorbing medium comprises amine salt absorbent having at least two amine groups, at least one of which is a salt and at least one of which has a pKa of about 4.5 to 7.3. The absorption is at a temperature of less than about 60.degree. C. The spent absorbing medium is regenerated under conditions such that at least one amine group remains in salt form.

Abstract: Spray coating, particularly flat spray coating of circuit boards. Applicant's method of conformal coating, eliminates "railroading" at the edges of the flat spray web and assures precise control of the amount of coating material placed on the circuit board surface.The method includes longitudinally advancing a pressurized coating over a surface to be coated, while simultaneously feeding the coating in a flat spray pattern, and triggering feeding "ON/OFF" so as to proportion the amount of coating being fed onto the surface and to reduce "fishtail" at the edges of the flat spray pattern.

Abstract: Components are removed from gas streams by contact in a contact zone with finely-divided droplets of reversible liquid sorbent wherein a portion of the droplets is coalesced, which droplets contain a concentration of component sorbed greater than that predicted by vapor-liquid equilibrium at the condition of the gas stream at the exit of the contact zone.

Abstract: Described herein are curable molding compositions comprising a mixture of:(a) a vinyl ester produced by the addition of an unsaturated monocarboxylic acid to a polyepoxide and having a molecular weight greater than 300;(b) acrylic or methacrylic acid or a functionalized derivative thereof having a molecular weight of less than 300;(c) an ethylenically unsaturated monomer which is soluble in and copolymerizable with (a) and (b) and which is different from (b).The compositions can also contain one or more fibers with a melting point or a glass transition temperature above about 130.degree. C.

Abstract: A process and formulation are provided for the removal of sulfides from solids and fluids utilizing certain halonitroalkanols. These compounds can rapidly and quantitatively remove hydrogen sulfide, organic sulfides and their salts from solutions, particularly aqueous mixtures.

Abstract: A biocompatible, film-forming delivery system for the delivery of pharmaceutical or therapeutic actives to a desired topical site of a subject, the system including:an active salt compound, wherein the active salt compound is at least a partial salt of(1) a carboxylic acid moiety-containing, biocompatible, film-forming polymer with(2) at least one active selected from the group consisting of pharmaceutical actives, therapeutic actives and a combination thereof, wherein the at least one active is capable of complexing with at least one carboxylic acid moiety of the polymer to form the active salt compound, andwherein the active salt compound forms an active salt compound film on the topical site and the active salt compound disassociates into the polymer and the at least one active while the delivery system is in contact with the topical site such that the polymer remains thereon as a polymer film and the at least one active is delivered to the topical site in an absorbable form.

Abstract: A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared where the starting polyol is capped with alkylene oxide and/or the adduct formed between the starting polyol and the reactive unsaturated compound is capped with ethylene oxide.

Abstract: The present invention is directed to novel isocyanate-terminated prepolymers of carboxylic acid grafted polyethers, salts of these prepolymers and fully reacted polymers formed therefrom. More specifically, the present invention relates to reacting an ethylenically unsaturated mono-carboxylic acid with a polyether in the presence of a free radical initiator to form a graft copolymer. Acid-containing isocyanate-terminated prepolymers can then be formed by reacting the graft copolymer with an isocyanate. Salt-containing isocyanate-terminated prepolymers are prepared through the reaction between the acid-containing prepolymer and a base. Finally, polymers are formed by curing either of these isocyanate-terminated prepolymers with an isocyanate reactive material.

Abstract: Certain dimethylamino alkyleneoxy isopropanols obtained by propoxylation of dimethylamino alkanols and ethers is used as a catalyst for preparing polyurethane foam.

Abstract: A stable polymer polyol made by the in situ polymerization of two or more monomers in a polyol blend wherein at least one monomer is a bifunctional compound containing both an isocyanate group and an ethylinically unsaturated group and wherein the polyol blend contains a base polyol and an amine terminated polyether which is more reactive with the bifunctional compound than is the base polyol.

Abstract: A stabilizer made by reacting a N-(polyoxyalkyl)-N-(alkyl)amine and a bifunctional unsaturated monomer and its use in the preparation of polymer polyols.

Abstract: A process for making low density and optionally low resilience, soft, flexible polyurethane slabstock foam having a substantially open cell structure without crushing, without requiring auxiliary inert blowing agents, by reacting under a condition which permits the foam to rise freely, a conventional hydroxyl-containing polyether polyol with a polyisocyanate at an isocyanate index of between about 60 and 95 in the presence of a foam processing aid comprising a low equivalent weight crosslinking agent and/or extending agent and, as needed, a cell opening agent.