Process and catalyst for production of liquid polymers

Abstract

Abstract A CATALYST SYSTEM COMPRISING A NIOBIUM HALIDE, A NIOBIUM OXYHALIDE, A NIOBIUM TRIHALODICARBOXYLATE OR MIXTURES THEREOF AND A MIXTURE OF (1) A NICKEL COMPOUND SUCH AS NICKEL OXIDE, A NICKEL SALT OF AN ORGANIC OR INORGANIC ACID, A NICKEL SALT OF A BETA-DIKETONE, OR A COMPLEX COMPOUND OF NICKEL SUCH AS DICYCLOPENTADIENYLNICKEL, NICKEL TETRACARBONYL, OR THE NICKEL COMPLEX WITH THE ESTER OF ACETOACETIC ACID, AND (2) AN ORANOMETALLIC COMPOUND OR A LITHIUM ALUMINUM HYDRIDE REPRESENTED BY THE FORMULAS RMALCLN, LIALHXR(4-X), AND RYM WHEREIN R IS A SATURATED ALKPHATIC, SATURATED CYCLOALIPHATIC, OR AROMATIC RADICAL OR COMBINATIONS THEREOF CONTAINING FROM 1 TO 20 CARBON ATOMS, M AND N ARE INTEGERS OF 1 OR 2 SUCH THAT M+N=3, X IS AN INTEGER OF FROM 0 TO 4, M IS LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CESIUM, BERYLLIUM, MAGNESIUM, ZINC, CADMIUM, ALUMINUM, GALLIUM, OR INDIUM, AND Y IS AN INTEGER EQUAL TO THE VALENCE OF THE METAL, IS EMPLOYED FOR THE POLYMERIZATION OF BUTADIENE. LIQUID POLYMERS ARE OBTAINED USING THE CATALYSTS OF THIS INVENTION. THE PRODUCTS CAN BE HYDROGENATED IMMEDIATELY FOLLOWING POLYMERIZATION WITH THE POLYMERIZATION CATALYST FUNCTIONING AS THE CATALYST FOR THE HYDROGENATION STEP.

Inventors

• 👤 Rudolf H Gaeth

Bibliographic Details