Abstract: A method of using a catalyst with a suitable cocatalyst in the polymerization or copolymerization of 1-olefins are disclosed. The catalyst is prepared by: a) contacting a Group IIA organometallic compound, like 2-methylpentanoxymagnesium chloride, or a Group III organometallic compound, like triethylaluminum, or a combination thereof, with a porous or nonporous biodegradable substrate having active surface hydroxyl groups, like cellulose, to provide a modified biodegradable substrate; then b) contacting the modified biodegradable substrate with a transition metal compound, such as a transition metal halide or alkoxide, like titanium tetrachloride or vanadium (V) trichloride oxide, to form discrete catalyst particles. The catalyst particles are used in conjunction with a suitable cocatalyst, like triethylaluminum, in the homopolymerization or copolymerization of 1-olefins. During polymerization, porous biodegradable catalyst particles are fragmented into small solid particles that are trapped within polymer.

Abstract: A catalyst, a method of preparing the catalyst, and a method of using the catalyst with a suitable cocatlayst in the polymerization or copolymerization of 1-olefins are disclosed. The catalyst is prepared by: a) contacting a group IIA organometallic compound, like 2-methylpentanoxymagnesium chloride, or a Group III organometallic compound, like triethylaluminum, or a combination thereof, with a porous or nonporous biodegradable substrate having active surface hydroxyl groups, like cellulose, to provide a modified biodegradable substrate; then b) contacting the modified biodegradable substrate with a transition metal compound, such as a transition metal halide or alkoxide, like titanium tetrachloride or vanadium(V)trichloride oxide, to form discrete catalyst particles. The catalyst particles are used in conjunction with a suitable cocatlalyst, like triethylaluminum, in the homopolymerization or copolymerization of 1-olefins.

Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain multifunctional organic silicon compounds (silanes) with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with a halide or alkoxide of a Group IVB or VB transition metal such as titanium, vanadium, zirconium or mixtures of these and finally reacting this product with a Group IIA organometallic compound or compound such as magnesium and calcium. The Group IIA organometallic compound can also be added before these transition metal compounds.

Abstract: An improved method of terminating ethylene polymerization and interpolymerization reactions by deactivating the Ziegler-type catalyst used in the reaction comprises the step of injecting a selected deactivating agent into the molten polymer solution in the polymerization reactor prior to degassing of the polymer solution.The deactivating agent is selected from the group consisting of:(a) natural hydrotalcite minerals and synthetic hydrotalcite-like materials;(b) Group IIIA metal salts of monocarboxylic acids;(c) alkali metal and alkaline earth metal salts of alkarylsulfonic acids;(d) alkali metal and alkaline earth metal salts of alkyl and alkaryl sulfuric acids;(e) organophosphites of a formula selected from the group consisting of (RO).sub.3 P and (RO).sub.2 POH where R is a hydrocarbon group containing 1 to 22 carbon atoms, inclusive;(f) ethoxylated hydrocarbylamines of the formula R'.sub.3-n N[(OCH.sub.2 CH.sub.2).sub.m OH].sub.

Abstract: A catalyst and method in which the catalyst is used with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting a monofunctional organic silicon compound with silica, alumina, or the like followed by reacting the product of this reaction with a Group IIA organometallic compound or complex, then reacting this product with a halide or alkoxide of a metal of Group IVB or Group VB or mixtures thereof. If desired, the halide or alkoxide may be first reacted with the silicon compound reaction product before the reacting with the organometallic compound or complex.

Abstract: An olefin polymerization and interpolymerization catalyst composition prepared by reacting at least one novel magnesium silylamide compound with a compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.

Abstract: A catalyst and method in which the catalyst is used with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting a monofunctional organic silicon compound with silica, alumina, or the like followed by reacting the product of this reaction with a Group IIA organometallic compound or complex, then reacting this product with a halide or alkoxide of a metal of Group IVB or Group VB or mixtures thereof. If desired, the halide or alkoxide may be first reacted with the silicon compound reaction product before the reacting with the organometallic compound or complex.

Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain multifunctional organic silicon compounds (silanes) with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with a halide or alkoxide of a Group IVB or VB transition metal such as titanium, vanadium, zirconium or mixtures of these and finally reacting this product with a Group IIA organometallic compound or compounds such as magnesium and calcium. The Group IIA organometallic compound can also be added before these transition metal compounds.

Abstract: An olefin polymerization and interpolymerization catalyst composition prepared by reacting novel magnesium silylamide compounds with at least one compound of a transition metal selected from Groups IIIB, IVB, VB and VIB of the fourth and fifth periods of the periodic table, and Groups VIIB and VIIIB of the fourth period.

Abstract: A method for polymerization of ethylene and copolymerization of ethylene with other 1-olefins at high temperatures in the presence of a transition metal catalyst and a tetra alkyl-.mu.-oxodialuminum compound.

Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a magnesium alkyl or a magnesium alkyl-aluminum alkyl complex of the general formula (MgR.sub.2).sub.m (AlR'.sub.3).sub.n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with an electron-donating alcohol and a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by removal, such as by evaporation, of the solvent to give a dry, granular, solid catalyst.

Abstract: A novel method of polymerizing and copolymerizing 1-olefins utilizing a catalyst active in the presence of an organometallic co-catalyst is disclosed. The catalyst is prepared by mixing an alkyl aluminum halide, a dialkyl magnesium compound and a reducible titanium compound of the formula Ti(OR).sub.n X.sub.4-n where R is an alkyl group, preferably of 1-6 carbon atoms, X is a halogen atom, and n is an integer between 0 and 4, inclusive, in the presence of a solvent and a particulate organic polymer whereby a reaction product is formed on the particles, and evaporating the solvent.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a magnesium alkyl or a magnesium alkyl-aluminum alkyl complex of the general formula (MgR.sub.2).sub.m (AlR.sub.3 ').sub.n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with an electron-donating alcohol and a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by removal, such as by evaporation, of the solvent to give a dry, granular, solid catalyst.

Abstract: The new compounds represented by the formulas: ##STR1## in which R is a straight or branched chain alkyl group including alkyl groups of about 1-18 carbon atoms, aryl groups of about 6 to 14 carbon atoms, and the R's are the same or different. The alkyl or aryl R groups are preferably unsubstituted but may have inert substituents that are nonreactive to the highly reactive Mg-N bonds, preferred substituents being ether groups, tertiary amine groups, chloride and fluoride groups and combinations of these, R' is R or hydrogen, Y is R or --SiR'.sub.3, all R's are the same or different, all R' are the same or different and all Y are the same or different.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a complex of the general formula (MgR.sub.2).sub.m (AlR'.sub.3).sub.n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by evaporation of the solvent.

Abstract: A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups treated with a fluorine compound and with a compound of magnesiumhydrocarbyl or a complex of the general formula (MgR.sub.2).sub.m (AlR.sub.3 ').sub.n where R and R' are alkyl or aryl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by separation of the solvent. The disclosure also includes a method of making such catalysts and a method of making polymers of one or more 1-olefins by the use of these catalysts under polymerizing conditions.

Abstract: A novel olefin polymerization and copolymerization catalyst and method is provided wherein the catalyst is prepared by mixing an alkyl aluminum halide, a dialkyl magnesium compound and a reducible titanium compound of the formula Ti(OR).sub.n X.sub.4-n where R is an alkyl group, preferably of 1-6 carbon atoms, X is a halogen atom, and n is an integer between 0 and 4, inclusive, in the presence of a solvent and a particulate organic polymer whereby a reaction product is formed on the particles, and evaporating the solvent. The catalyst is active in the presence of an organometallic co-catalyst.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a complex of the general formula (MgR.sub.2).sub.m (AlR.sub.3 ').sub.n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by evaporation of the solvent.