Abstract: An olefin polymerization catalyst comprising (A) a solid catalyst component and (B) an organometallic compound component. The solid catalyst component (A) is prepared by a process comprising the steps of:(I) obtaining a solid (A-1) by reacting:(i) an organomagnesium component soluble in a hydrocarbon solvent and represented by the formula (M.sup.1).sub..alpha. (Mg).sub..beta. (R.sup.1).sub.p (R.sup.2).sub.q (OR.sup.3).sub.r ; and(ii) an Si--H bond-containing chlorosilane compound represented by the formula: H.sub.a SiCl.sub.b R.sup.4.sub.4-(a+b), in a ratio of from 0.01 to 100 mol (ii) per mol (i);(II) reacting the solid (A-1) with an alcohol (A-2) in a ratio of from 0.05 to 20 mol of the alcohol per mol of C--Mg bonds contained in the solid (A-1), to form a reaction product; and(III) reacting the reaction product with a titanium compound (A-4). The solid catalyst component (A) is adjusted to have an alkoxy group/titanium molar ratio of 2.4 or lower and an alkoxy group/magnesium molar ratio of 0.15 or lower.

Abstract: A solid cocatalyst is prepared by combining (1) a first material capable of affixing an organoaluminum compound with (2) an organic liquid and then adding an organoaluminum compound and then contacting that product with water dispersed in an inert gas. Further catalyst compositions prepared from that cocatalyst and the use of such catalyst compositions to polymerize olefins is disclosed.

Abstract: Catalyst compositions are disclosed which are useful for the hydroxylation and the ammination of aromatic hydrocarbons using molecular oxygen as terminal oxidant. The catalysts comprise a support selected from the group consisting of metal oxides, molecular sieves, zeolites and clays; transition metal selected from the group consisting of vanadium, niobium, copper, palladium, nickel and silver, and combinations thereof; and at least one multidentate chelating, binucleating ligand. The catalysts may further comprise additional metal ions. The process is particularly suited, for example, to the one-step conversion of benzene to phenol and of benzene to aniline.

Abstract: A method for polymerizing olefins which comprises using a catalyst which comprises, as the essential components, (A) a metallocene-type transition metal compound and (B) at least one member selected from the group consisting of (1) an ion-exchanging layered compound other than a silicate and (2) an inorganic silicate, which is obtained by salt-treatment and/or acid-treatment and which has a water content of not higher than 1% by weight.

Abstract: The invention is directed to a catalyst composition suitable for addition reactions of ethylenically and acetylenically unsaturated monomers comprising a metal oxide support having covalently bound to the surface thereof directly through the oxygen atom of the metal oxide an activator anion that is also ionically bound to a catalytically active transition metal cation compound. The invention includes a preparation process for the invention catalyst composition exemplified by reacting a Lewis acid, such as trisperfluorophenyl boron with residual silanol groups of a silica support, preferably then reacting with a Lewis base such as diethylaniline, so as to prepare a silica bound anionic activator that when combined with a suitable transition metal compound will protonate it so as to form the ionic catalyst system. Use of the invention catalyst to polymerize alpha-olefins is exemplified.

Abstract: Catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers comprising biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .pi.-complex in combination with a cocatalyst or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions.

Abstract: A composition containing a magnesium component, a titanium component, a halide and a 1,2-dialkoxybenzene, wherein at least one alkoxy group has at least two carbon atoms, and the manufacture of the composition are taught by the present invention. The compositions are useful as Ziegler-Natta catalysts in the production of olefin polymers.

Abstract: The present invention relates to silica gel supported bis-cinchona alkaloid compounds of the formula: ##STR1## wherein Q is dihydroquininyl or dihydroquinindinyl; X is a compound having 4 carbon atoms; and R is methoxy, ethoxy or methyl; and methods of preparation and use thereof. The silica gel supported bis-cinchona alkaloid derivatives of this invention are useful re-useable catalysts for preparing vicinal diols by asymmetric dihydroxylation of olefins.

Abstract: A solid catalyst component for polymerization of olefins prepared by reacting a titanium halide, a diester of aromatic dicarboxylic acid and a dialkoxymagnesium having a bulk density of at least 0.25 g/ml and an average particle size of 1 to 100 .mu.m. The average rate of temperature rise from the temperature at which the titanium halide is allowed to come in contact with the dialkoxymagnesium to the temperature at which the reaction is initiated is in a range of from 0.5 to 20.degree. C./min. Such catalyst can further comprise an organic aluminum compound and an organic silicon compound. The use of said catalyst makes it possible to efficiently obtain a polyolefin having a high stereoregularity, a high bulk density and excellent particle properties.

Abstract: This invention is directed to a process for the preparation of a supported metallocene catalyst, said process comprising preparing a precursor catalyst material by dissolving a magnesium halide in an electron donor solvent in which the magnesium halide is completely soluble, heating the solution to a temperature in the range of 20.degree. C. to the boiling point of the respective electron donor for a period ranging between 10 to 60 minutes, separately preparing a solution of the metallocene compound into the same electron donor solvent, heating the solution to a temperature in the range of 25.degree. C. to 70.degree. C. for a period ranging between 0.1 to 0.5 hrs., mixing the two solutions to obtain a homogenous solution of catalyst precursor compound, stirring and maintaining this resulting homogenous solution at a temperature in the range of 50.degree. C. to 70.degree. C. for a period of 0.5 to 2 hrs.

Abstract: A method for converting ?MoCp(CO).sub.3 !.sub.2, in which at least one of the Cp groups has a substitutent having a carbonyl or carboxyl group and the compound has a Mo--Mo single bond, into a resinous supported material having repeating units of the formula (MoCp).sub.2 S.sub.4. The repeating units have four bridging sulfido ligands between the two molybdenum atoms, and the repeating units are joined to each other by bridging-sulfide ligands. The method comprises reacting the molybdenum carbonyl dimer with elemental sulfur in a solvent for the starting material at a temperature between 110-120.degree. C. in the presence of a solid adsorbent support. The resinous material may be further hydrogenated, the hydrogenated material may be further reacted to form a material having a carboxyl-containing methanedithiolate ligand, and this latter material may be further hydrolyzed. The molybdenum sulfide dimers are useful for separation, purification, and recovery of unsaturated hydrocarbons.

Abstract: The present invention is directed to a process for the preparation of a solid magnesium halide supported metallocene catalyst having a transition metal selected from the group consisting of IIIB, IVB, VB and VIB of the periodic table, which comprises preparing a slurry of magnesium metal in an electron donor solvent; heating the slurry of magnesium metal to 0.degree. C. to 50.degree. C. for a period of 10 minutes to 4 hr.; adding a dihaloalkane compound to said slurry to obtain a homogeneous solution of a support (solution A); separately preparing a solution of a metallocene compound in the same electron donor solvent as solution A (solution B); heating the solution B to 0.degree. C. to 50.degree. C. for a period ranging between 10 minutes and 1 hr., adding solution B to solution A over a period ranging between 10 minutes to 2 hrs. while maintaining the temperature in the range of 0 to 50.degree. C.

Abstract: A process for polymerizing a gaseous conjugated diene by bringing it in contact with a catalyst consisting of a rare earth allyl compound, an organic aluminum compound, an inorganic support and optionally, the same or a different conjugated diene. The resulting polymers possess elevated proportions of cis-1,4 units.

Abstract: This invention is a process for the selective hydrogenation of block copolymers having at least one poly(vinyl aromatic) block and at least one poly(conjugated diene) block which comprises contacting the block copolymers with hydrogen in the presence of a hydrogenation catalyst composition which comprises:a) a metal compound cation of the formula ?(A)(E)M(R.sub.4)!.sup.+ wherein M represents titanium, zirconium, or hafnium, A and E each represent ligands with structure I or II ##STR1## in which R.sub.1 independently represents the same or different hydrocarbyl groups optionally containing heteroatoms, and R.sub.3 independently represents the same or different hydrocarbonyl groups optionally containing heteroatoms, or a halide, and in which R.sub.1 and R.sub.3 may be shared between A and E to provide a bridge, wherein m is an integer from 0-5, p is an integer from 0-4, and q is an integer from 0-3, wherein R.sub.

Abstract: Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using a sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. Isomerization of terminal olefins is possible with such porous microcomposites.

Abstract: A solid catalyst component (A1) for polymerization of olefins prepared by contact with a solid component (d) obtained by allowing (1) a solid component (a) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound and (iii) a diester of aromatic dicarboxylic acid to come in contact with one another and (2) a solid component (b) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound, (iii) a diester of aromatic dicarboxylic acid and (iv) a polysiloxane to come in contact with one another, to come in contact with each other, or a solid catalyst component (A2) for polymerization of olefins prepared by allowing said solid component (a) and (3) a solid component (d) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound, (iii) a diester of aromatic dicarboxylic acid, (iv) a polysiloxane and (v) an aluminum compound to come in contact with one another, to come in contact with each other.

Abstract: A Group 6 metal-containing, ligand-containing olefin polymerization catalyst component can be made by using an unsolvated Group 6 metal trihalide as the starting reagent for the Group 6 metal which comprises contacting (e.g., in tetrahydrofuran) the Group VIB metal trihalide, such as chromium trichloride, with a ligand reagent or reagents, such as a cyclopentadienyl-containing lithium compound and a lower alkyl-containing lithium compound, in the presence of a sigma donor ligand, such as pyridine.

Abstract: Supported phase catalysts in which the support phase is highly polar, most preferably ethylene glycol or glycerol, are disclosed. An organometallic compound, preferably a metal complex of chiral sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (BINAP) is dissolved in the support phase. Such supported phase catalysts are useful for asymmetric synthesis of optically active compounds, including the asymmetric hydrogenation of prochiral unsaturated carbon-hetero atom bonds, such as ketones, imines and beta-keto esters. The phenyl groups of the BINAP ligand are at least meno-sulfonated and the ligand overall is terra- to hexa-sulfonated. Ruthemium is the perferred metal.

Abstract: Disclosed is a process for preparing a solid titanium catalyst component, comprising contacting (a) a liquid magnesium compound, (b) a liquid titanium compound, (c) an electron donor and (d) a solid divalent metallic halide. In this process, the solid divalent metallic halide is one having a crystalline structure of the cadmium chloride type. The contact of the component (a) with the component (b) is preferably carried out in the presence of the solid divalent metallic halide (d). According to this process, there can be obtained a solid titanium catalyst component capable of polymerizing olefins with an extremely high activity and capable of producing polyolefins of high stereoregularity when .alpha.-olefins of 3 or more carbon atoms are polymerized.

Abstract: A catalyst for polymerizing an olefin, which comprises (A) a metallocene transition metal compound, (B) (1) an ion-exchanging layered compound other than a silicate or (2) an inorganic silicate prepared by treating a starting ion-exchanging layer compound other than a silicate or a starting silicate with a salt, an acid, or a combination thereof, said component (B) having a water content not higher than 1% by weight which is obtained by heat-dehydrating component (B) under an inert gas atmosphere or under reduced pressure, and (C) an organoaluminum compound.