Abstract:
Disclosed is a novel catalyst for the carbonylation of one or more of alcohols, ethers and ether alcohols to esters and, optionally, to carboxylic acids. The reaction is effected in the vapor state over a solid catalyst comprising a polyoxometalate anion in which the metal is at least one taken from Group V and VI of the Periodic Chart of the Elements complexed with a cation from a member of Group VIIIA of the Periodic Chart of the Elements. Preferably, the catalyst is deposited on a support that is inert to the reaction. The preferred support is silica.
Abstract:
Novel trifunctional unsaturated compounds and mixtures thereof and their derivatives as well as a method for preparing the unsaturated compounds from unsaturated anhydrides and unsaturated alcohols. The unsaturated compounds are used to prepare novel cycloaliphatic epoxide compositions that have utility as coatings, inks, sealants, and adhesives that can be cured under ambient conditions, by thermal means, and by radiation technology.
Abstract:
Processes are disclosed for reducing the viscosity of compositions containing one or more polymeric compounds so as to make them transportable by adding a subcritical compressed fluid, which fluid is a gas at standard conditions of 0 o C and one atmosphere pressure.
Abstract:
A colorant composition for use in coating compositions is disclosed. The colorant composition comprises a pigment component, for imparting a color to the coating composition, and a liquid vehicle for the pigment component. At least a portion of the liquid vehicle is a nitrogen-containing component selected from compounds which have a formula
and mixtures thereof, wherein each R is independently selected from the group consisting of H, monovalent hydrocarbyl radicals having 1 to about 4 carbon atoms, divalent hydrocarbyl radicals having 1 to about 2 carbon atoms,and R'OH wherein R' is a divalent hydrocarbyl radical having 1 to about 4 carbon atoms, provided that the compound includes at least one hydroxyl group and if one R is a divalent radical then another R is a bond in the divalent radical or is another divalent radical. The use of such nitrogen-containing components provides colorant compositions having substantial benefits, e.g., substantially similar or better performance characteristics and reduced toxicity relative to current colorant compositions.
Abstract:
Cleaning compositions and methods for cleaning using such compositions are disclosed. In one embodiment the composition comprises a debris solubilizing amount of at least one alkoxylate selected from compounds having the formula
and mixtures thereof, wherein R contains about 5 to about 11 carbon atoms and is preferably selected from alkylene radicals, substituted alkylene radicals, alkenylene radicals and substituted alkenylene radicals, each x and y is independently selected from integers in the range of 0 to about 20, provided that the sum of all the x's and y's is at least 1, and each z is independently selected from the integers 0 and 1, provided that at least one of the z's is 1.
Abstract:
A process for the solid phase forming of an impact polypropylene copolymer comprising (a) providing an impact polypropylene copolymer comprising (i) a matrix, which is either a homopolymer of propylene or a copolymer of propylene and up to about 5 percent by weight of at least one other alpha-olefin based on the weight of the copolymer, and, incorporated into said matrix, (ii) a copolymer of ethylene and at least one other alpha-olefin, said copolymer having a crystallinity of at least about 20 percent and being present in the impact copolymer in an amount of at least about 10 percent by weight based on the total weight of the impact copolymer; and (b) forming the impact polypropylene copolymer at a temperature above the melting point of component (ii) but below the melting point of component (i).
Abstract:
An improved liquid recycle rhodium-catalyzed hydroformylation process wherein the improvement comprises recovering unreacted olefin contained in a vent gas of the process and recycling said unreacted olefin to the hydroformylation reaction medium.