Back to results
US 6,605,679 B1Granted
Polymerization of olefins
AssigneeE. I. Du Pont de Nemours and Company
InventorsLin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
Life of this patent
Estimating the term…
Abstract
Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.
Claims6
A copolymer comprising repeat units of the formula
- wherein:
- T is alkylene or substituted alkylene;
- R71 is hydrocarbyl or substituted hydrocarbyl;
- each R72 is independently fluorine, chlorine or perfluoroalkyl containing 1 to 10 carbon atoms;
- a is 0, 1 or 2;
- b is 0 or an integer of 1 to 6;
- R73 is alkyl or hydrogen;
- and
- R74 is hydroxyl, fluorine, chlorine, or OM, wherein M is a metal cation.
6 more elements
Dependencies are inferred from the claim text.