Asphalt, bitumen, and adhesive compositions
AssigneeThe Dow Chemical Company
InventorsFrancis J. Timmers, James C. Stevens
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Abstract
The subject invention is directed to a composition comprising a polymer, comprising in polymerized form ethylene and at least one additional polymerizable monomer, prepared by polymerizing ethylene and said at least one addition polymerizable monomer in the presence of a catalyst comprising a recited cyclopentadienyl group-containing metal coordination complex and an activating cocatalyst, wherein said composition is an asphalt, bitumen, or adhesive composition.
Claims7
A composition comprising a polymer, comprising in polymerized form ethylene and at least one addition polymerizable monomer, prepared by polymerizing ethylene and said at least one addition polymerizable monomer in the presence of a catalyst comprising the following components:
- a. a metal coordination complex corresponding to the formula:
- ##STR6## wherein:
- M is a metal of Group 4 or the Lanthanide Series of the Periodic Table of the Elements;
- Cp* is a cyclopentadienyl or a substituted cyclopentadienyl group wherein one or more carbons of the cyclopentadienyl group are substituted with a C.sub.1 -C.sub.20 hydrocarbyl radical, C.sub.1 -C.sub.20 halohydrocarbyl radical, C.sub.1 -C.sub.20 hydrocarbyl substituted Group 14 metalloid radical, or halogen radical, or optionally two or more such substituents together form a fused ring system;
- said Cp* being bound in an .eta..sup.5 bonding mode to M;
- Z is a moiety comprising boron, or a member of Group 14 of the Periodic Table of the Elements, and optionally sulfur or oxygen, said moiety having up to 20 non-hydrogen atoms, and optionally Cp* and Z together form a fused ring system;
- X independently each occurrence is an anionic ligand group having up to 30 non-hydrogen atoms;
- n is 1 or 2 depending on the valence of M;
- and
- Y is an anionic ligand group bonded to Z and M comprising nitrogen, phosphorus, oxygen or sufur and having up to 20 non-hydrogen atoms, optionally Y and Z together form a fused ring system;
- and
- b. an activating cocatalyst,
- wherein said composition comprising a polymer is an asphalt, bitumen, or adhesive composition.
Dependencies are inferred from the claim text.