Abstract:
There is provided a method for terminating a gas phase polymerization of a compound selected from the group consisting of a conjugated diene, a vinyl-substituted aromatic compound, and mixtures thereof, in a polymerization vessel in the presence of a catalyst, and optionally in the presence of an inert particulate material, comprising introducing a kill agent selected from the group consisting of an alcohol having 1 to 20 carbon atoms, an alkyl or cycloaklyl monoether, ammonia, water, an alkyl or aryl amine, and mixtures thereof.
Abstract:
A cable comprising one or more electrical conductors or a core of one or more electrical conductors, each conductor or core being surrounded by a layer of insulation comprising a multimodal copolymer of ethylene and one or more alpha-olefins, each alpha-olefin having 3 to 8 carbon atoms, said copolymer having a broad comonomer distribution as measured by TREF with a value for the percent of copolymer, which elutes out at a temperature of greater than 90 DEG C, of greater than about 5 percent; a WTGR value of less than about 20 percent; a melt index in the range of about 0.1 to about 30 grams per 10 minutes; and a density in the range of 0.880 to 0.950 gram per cubic centimeter, and being prepared by a low pressure process.
Abstract:
This invention relates to a process which comprises reacting one or more reactants in the presence of a metal-organopolyphosphite ligand complex catalyst and optionally free organopolyphosphite ligand to produce a reaction product fluid comprising one or more products, wherein said process is conducted at a carbon monoxide partial pressure such that reaction rate increases as carbon monoxide partial pressure decreases and reaction rate decreases as carbon monoxide partial pressure increases and which is sufficient to prevent and/or lessen deactivation of the metal-organopolyphosphite ligand complex catalyst.
Abstract:
This invention relates to a process for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid.
Abstract:
This invention relates to a process for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises (a) treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid and (b) treating the water which contains phosphorus acidic compounds removed from said reaction product fluid with an ion exchange resin sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said water.
Abstract:
This invention relates to polyurethanes of various types prepared from certain substituted hydrocarbon diols and/or derivatives of said substituted hydrocarbon diols, and polyfunctional isocyanates. The polyurethanes are useful in preparing coatings, inks, adhesives, sealants, elastomers, and foams. In particular, the invention relates to polyurethanes cured by means of moisture, blocked amines, or related compounds.
Abstract:
This invention relates to processes for the preparation of reaction mixtures containing substituted hydrocarbon diols, e.g., substituted 1,3-propanediols, as principal products of reaction and to reaction mixtures containing the substituted hydrocarbon diols as principal products of reaction. The substituted hydrocarbon diols and derivatives thereof are useful alone or in the production of intermediates, and have utility in coatings, adhesives, inks, fibers, pharmaceutical intermediates, sealants, stereolithography, as well as in other end uses.
Abstract:
Cellulosic lacquers and methods are provided in which a portion of the cellulosic resin is replaced by a polymer containing at least one vinyl ester monomer that is a vinyl ester of a carboxylic acid having the formula CH2=CH-O-C(=O)-R, where R is a saturated alkyl group or an aromatic group having 4 to 9 carbons. These lacquers have higher solids levels at a given application viscosity than conventional cellulosic lacquers, thereby reducing solvent emissions during their application to substrates.
Abstract:
The present invention is directed to methods for spraying polymeric compositions with supercritical or subcritical compressed fluids such as carbon dioxide or ethane over a wider range of spray conditions to provide improved spray application quality with reduced emission of solvent. The methods are accomplished by using an elongated spray orifice to transform narrow, fishtail, liquid-film sprays to wider, feathered, decompressive sprays.
Abstract:
This invention relates to a process for separating an aldehyde that contains at least seven carbon atoms and that is free of alpha substituents from a solution containing the aldehyde and a non-polar organic liquid which process comprises contacting the solution with water under conditions such that a solid hydrate of the aldehyde forms and separating the solid hydrate from the solution. This invention also relates to novel hydrates so produced.