Abstract: A catalyst system useful for the polymerization of ethylene and other .alpha.-olefins comprising (a) a silica-supported chromium oxide catalyst and (b) a dihydrocarbylboron monohydrocarbyloxide adjuvant. The catalyst system results in .alpha.-olefin polymers having a broadened molecular weight distribution in the high molecular portion.
Abstract: A process to form a fiber-reinforced prepreg and shaped objects having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The prepreg is useful to form composites with high temperature resistance. The prepreg is prepared by pultrusion of resin-impregnated fiber reinforcement through a shaped die. The reinforcement can be impregnated from a liquid slurry or resin particles and a wetting agent.
Type:
Grant
Filed:
November 28, 1986
Date of Patent:
December 20, 1988
Assignee:
Phillips Petroleum Company
Inventors:
James E. O'Connor, Jon F. Geibel, William H. Beever
Abstract: A process for producing a novel-highly active lanthanide containing catalyst comprising the product produced by reacting a lanthanide hydride, a Lewis acid, and an electron donor ligand with an organoaluminum cocatalyst component and its use in the polymerization of olefins, especially olefins such as ethylene and 1,3-butadiene.
Abstract: Alumina is calcined and thereafter given a phosphating treatment. The resulting composition is particularly suitable for a support for a transition metal compound such as chromium oxide to provide an olefin polymerization catalyst. The resulting catalyst is capable of producing polymer at unusually high productivity rates and also gives the ability to produce high melt flow polymer.
Abstract: In an inverse emulsion polymerization system for producing water-soluble polymers from a monomer system comprising an N-vinyl lactam and/or a vinyl-containing sulfonic acid or salt thereof utilizing a surfactant system having (1) a surfactant with a bulky lipophilic portion and an OH-containing hydrophilic portion and (2) a generally straight-chain nonionic surfactant having a lipophilic hydrocarbon group and an OH-terminated hydrophilic group, i.e. an alcohol. Such a system having both the right HLB and the right chemical combination results in a stable emulsion for the polymerization of these particular water-soluble monomers.
Abstract: A process for the preparation of cis-9-tricosene is disclosed. Cis-1,9-octadecadiene, which may be obtained by the dehydration of oleyl alcohol, is metallated with an organomagnesium halide, producing cis-9-octadecenylmagnesium halide, which in turn is alkylated with n-pentyl halide to form the desired cis-9-tricosene.
Abstract: Novel compositions comprising methanol and 1,3,5-trioxane, uses as slurry agents and/or fuels, and methods of synthesis of said compositions from gases containing carbon dioxide and light hydrocarbons are disclosed.