Polymerization catalyst process and catalyst

Abstract

Abstract 1. A CATALYST SYSTEM FORMED ON ADMIXING AN ORGANOMETAL COMPOUND OF THE FORMULA MRN WHEREIN M IS A METAL OF GROUP I-A, II-A, III-A AND IV-A OF THE PERIODIC TABLE, N IS THE VALENCE OF M AND R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL AND ARYL HAVING FROM 1 TO 20 CARBON ATOMS WITH A TITANIUM TRICHLORIDE-ALUMINUM TRICHLORIDE COMPLEX OF THE FORMULA TICL3-1/3ALCL3, AN ORGANOALUMINUM DIHALIDE OF THE FORMULA RALX2 WHEREIN X IS A HALOGEN AND R IS A MEMBER OF THE GROUP CONSISTING OF ALKYL, CYCLOALKYL AND ARYL RADICALS HAVING FROM 1 TO 20 CARBON ATOMS AND A SILAZANE SELECTED FROM THE GROUP CONSISTING OF R3SI-NR''-SIR3, (R3SI3-N, R3SI-NR''-SIR2-NR''-SIR3 AND R''(R2SINH)YR'' WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF ALKYL, CYCLOALKYL AND ARYL RADICALS HAVING FROM 1 TO 20 CARBON ATOMS, R'' IS R OR HYDROGEN AND Y IS AN INTEGER FROM 4 TO 50, AND WHEREIN THE MOLAR RATIO OF SAID RAIX2 COMPOUND TO SAID TICL3-1/3ALCL3 COMPOUND IS IN THE RANGE OF 0.5:1 TO 10:1, THE MOLAR RATIO OF SAID SILAZANE COMPOUND TO SAID TICI3-1/3ALCL3 COMPOUND IS IN THE RANGE OF 0.25:1 TO 7.5:1 AND THE MOLAR RATIO OF SAID MRN COMPOUND TO SAID TICI3-1/3ALCL3 COMPOUND IS IN THE RANGE OF 0.5:1 TO 7.5:1 AND WHEREIN THE MOLAR RATIO OF SAID RALX2 COMPOUND TO SAID MRN COMPOUND IS IN THE RANGE OF 5:1 TO 5:2. FORMED LOW MOLECULAR WEIGHT AND HIGH MOLECULAR WEIGHT POLYMERS OF THE RESPECTIVE ELASTOMERS, IN THE RATIO OF 0.7 TO 1.3 PARTS BY WEIGHT OF THE LOW MOLECULAR WEIGHT POLYMER PER 1 PART BY WEIGHT OF THE HIGH MOLECULAR WEIGHT POLYMER, IN WHICH, FOR THE EPDM ELASTOMERIC SYSTEM, THE LOW MOLECULAR WEIGHT POLYMER IS AN EPDM HAVING A MOLECULAR WEIGHT AVERAGE LESS THAN 25,000 AND THE HIGH MOLECULAR WEIGHT POLYMER IS AN EPDM HAVING AN AVERAGE MOLECULAR WEIGHT MEASURED BY MOONEY LEVEL OF ML1+8 AT 300*F WHICH IS GREATER THAN 100 AND IN WHICH, FOR THE EPM ELASTOMERIC SYSTEM, THE LOW MOLECULAR WEIGHT POLYMER IS AN EPM HAVING AN AVERAGE MOLECULAR WEIGHT OF LESS THAN 10,000 AND THE HIGH MOLECULAR WEIGHT POLYMER IS AN EPM HAVING AN AVERAGE MOLECULAR WEIGHT MEASURED BY MOONEY LEVEL OF ML1+8 AT 300*F WHICH IS GREATER THAN 90, SEPARATING THE BLENDED SOLIDS BY COAGULATION, AND PROCESSING THE SOLID BLEND BY MILLING OR EXTRUSION.

Inventors

• 👤 Charles W Moberly
• 👤 Gerald R Kahle

Bibliographic Details