Polymerisation process

Abstract

Abstract 1. A PROCESS FOR THE POLYMERISATION OR COPOLYMERISATION OF AN OLEFINICALLY UNSATURATED MONOMER WHICH COMPRISES CONTACTING THE MONOMER WITH A TRANSITION METAL INITIATOR COMPOSITION WHICH IS THE PRODUCT OBTAINED BY REACTING A TRANSITION METAL COMPLEX OF THE GENERAL FORMULA RMMXP WITH A SUBSTANTIALLY INERT MATRIX MATERIAL WHICH HAS REACTIVE-OH GROUPS ON ITS SURFACE FOR REACTION WITH SAID COMPLEX AND WHICH IS FREE FROM ABSORBED WATER, SAID COMPLEX AND SAID-OH GROUPS BEING REACTED TO CHEMICALLY BOND SAID COMPLEX TO THE MATRIX ACCORDING TO THE REACTION MATRIX (-OH)N+MRMXP$ MATRIX (-O)NMRM-NXP+MRH. WHEREIN M IS A TRANSITION METAL OF GROUPS IVA TO VIA OF THE PERIODIC TABLE OF THE ELEMENTS, EACH R IS A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKYL. ALKENYL, AND SUBSTITUTED ALKYL OF GENERAL FORMULA -CH2Y, WHERE Y IS SELECTED FROM THE GROUP CONSISTING OF AROMATIC GROUPS, POLYAROMIC GROUPS, CYCLOALKENYL GROUPS, AND GROUPS OF GENERAL FORMULA Z(R'')3, WHERE Z IS SILICON, GERMANIUM, TIN OR LEAD AND EACH R'' IS HYDROCARBON OR HYDROGEN, X IS A MONOVALENT LIGAND AND M AND P RE INTEGERS, AND N IS AN INTEGER NOT MORE THAN (M-1), M HAVING A VALUE FROM 2 TO THE HIGHEST VALENCY OF THE METAL M AND P HAVING A VALUE FROM 0 TO 2 LESS THAN THE VALENCY OF THE METAL M, WITH THE PROVISO THAT WHEN M IS A METAL OF GROUP VIA, P IS O, SAID MONOMER BEING AN OLEFINICALLY UNSATURATED MONOMER OTHER THAN A POLAR VINYL MONOMER WHICH REACTS NON-CATALYTICALLY WITH THE INITATOR COMPOSITION.

Inventors

• 👤 A Pioli
• 👤 P Robinson
• 👤 D Ballard
• 👤 E Jones
• 👤 R Wyatt

Bibliographic Details