Polymerization of olefins in the presence of polymer supported Ziegler-Natta catalysts
A process is described for polymerizing one or more ..cap alpha..-olefins or one or more ..cap alpha..-olefins and one or more polymerizable ethylenically unsaturated monomers. The process comprises conducting the polymerization under Ziegler polymerization conditions in the presence of an organoaluminum cocatalyst and a polymer supported Ziegler-Natta catalyst resulting from contacting for a time sufficient to form a compound or a complex, (A) (1) at least one organic polymeric material to which has been covalently bonded (2) one or more dihydric phenolic compounds; which has been prepared by reacting a halogenated organic polymeric material with the dihydric phenolic compound; with (B) at least one compound of an element from the transition metal, lanthanide or actinide series represented by the formula Tm(OR)/sub x/X/sub y-x/. Each R is independently a hydrocarbyl group having from 1 to about 20 carbon atoms; Tm is an element from the transition metal, lanthanide or actinide series; X is a halogen; x has a value from zero to a value equal to the valence of the element Tm and y has a value equal to the valence of the element Tm; and wherein components (A-1) and (A-2) are employed in amounts which provides a ratio of moles of (A-2) per halogen atom contained in a halogenated component (A-1) of from about 1:1 to about 30:1. Components (A) and (B) are employed in an amount which provides a ratio of moles of polyhydric aromatic compound per atom of Tm of from about 1:1 to about 10:1.
- Assignee:
- Dow Chemical Co., Midland, MI
- Patent Number(s):
- US 4623707
- OSTI ID:
- 7066567
- Resource Relation:
- Patent File Date: Filed date 10 Dec 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKENES
POLYMERIZATION
ACTINIDES
ALUMINIUM
CATALYSTS
HALOGENS
MONOMERS
PHENOLS
POLYMERS
QUANTITY RATIO
RARE EARTH COMPOUNDS
TIME DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
AROMATICS
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
HYDROXY COMPOUNDS
METALS
NONMETALS
ORGANIC COMPOUNDS
400201* - Chemical & Physicochemical Properties