Abstract: The present invention is a new catalyst compositions and methods of making and using the same. These compositions comprise organometallic salts with large noncoordinating anions which contain at least one terminal unsaturation and the high dipole moment Zwitterions that these can isomerize into. During polymerization, the ionic pairs are dispersed within the polymer particles. The length of space separating the positive and negative end of the Zwitterion also increase as a consequence of polymerization. Additionally, polymerization proceeds without the need of a co-catalyst.

Abstract: This invention is based upon the unexpected discovery that styrene-butadiene block copolymers having syndiotactic polystyrene (sPS) blocks and cis-1,4-polybutadiene (PBd) blocks can be synthesized by polymerizing styrene and 1,3-butadiene utilizing certain catalyst systems when the polymerization is conducted at a pressure which is within the range of about 10 mm of mercury to about 50 mm of mercury at a temperature which is within the range of about 0° C. to about 100° C.

Abstract: Syndiotactic polymers of alpha-olefins selected from the group consisting of 1-butene, 4-methyl-1-pentene and 4-methyl-1-hexene and a method of preparation thereof by polymerizing said olefins with catalysts obtained from specific Zr or Hf cyclopentadienyl compounds and aluminoxane compounds.

Abstract: A novel composition is provided which is suitable for use as a catalytic support which contains chlorine, bromine and magnesium. The molar ratio of bromine to chlorine is critical and ranges between about 1:99 to about 50:50, preferably between about 2.5:97.5 to about 20:80, and most preferably between about 2.5:97.5 to about 15:85. The molar ratio of magnesium to combined chlorine and bromine is not critical but generally ranges between about 1:1.6 and about 1:2.0, preferably between about 1:1.8 and about 1:2.0. The composition is obtained by reacting an organo magnesium compound with a mixture of chlorinated and brominated aluminum compounds.

Abstract: Aluminum trihydrocarbyls are prepared by reacting an organo magnesium compound with a mixture of chlorinated and brominated aluminum compounds. There is thus obtained a mixture of aluminum trihydrocarbyls and a magnesium halide containing both chloride and bromine. The aluminum trihydrocarbyls are then recovered from the mixture. They may be used in the preparation of an alpha olfin polymerization catalyst as hereinafter described.

Abstract: A novel catalyst composition comprising (A) the solid reaction product of (1) at least one non-halide-containing organic oxygenated compound of magnesium, (2) at least one non-halide-containing organic oxygenated titanium compound and (3) an aluminum halide; (B) an activator; and (C) at least one non-halide-containing organic oxygenated titanium compound.

Abstract: A novel catalyst system comprising (A) the solid product obtained by (1) treating a polymeric support carrying a magnesium compound with a titanium halide and (2) reacting the product of (1) with an aluminum hydrocarbyl; (B) an activator; and (C) at least one non-halide-containing organic oxygenated titanium compound.

Abstract: A novel catalyst composition is provided which comprises the reaction product of (A) an aluminum hydrocarbyl treated with an electron donor compound and (B) a support containing chlorine, bromine and magnesium, wherein the molar ratio of bromine to chlorine ranges between about 1:99 to about 50:50, preferably between about 2.5:97.5 to about 20:80, and most preferably between about 2.5:97.5 to about 15:85, obtained by reacting an organo magnesium compound with a mixture of chlorinated and brominated aluminum compounds, the support having been additionally treated with an electron donor compound and with titanium tetrachloride. The molar ratio of magnesium to combined chlorine and bromine in the support is not critical but generally ranges between about 1:1.6 and about 1:2.0, preferably between about 1:1.8 and about 1:2.0.

Abstract: An alpha olefin is polymerized to obtain highly crystalline polymers by subjecting the alpha olefin to polymerization conditions using as a catalyst therefor the reaction product of (A) an aluminum hydrocarbyl treated with an electron donor compound and (B) a support containing chlorine, bromine and magnesium, wherein the molar ratio of bromine to chlorine ranges between about 1:99 to about 50:50, preferably between about 2.5:97.5 to about 20:80, and most preferably between about 2.5:97.5 to about 15:85, obtained by reacting an organo magnesium compound with a mixture of chlorinated and brominated aluminum compounds, the support having been additionally treated with an electron donor compound and with titanium tetrachloride. The molar ratio of magnesium to combined chlorine and bromine in the support is not critical but generally ranges between about 1:1.6 and about 1:2.0, preferably between about 1:1.8 and about 1:2.0.