Loading patent…
AssigneeAmoco Corporation
InventorsVahid Bagheri, Bruce Edward Firth, Joanna Kyrle Money, Eric Jan Moore, Frank Calabrese, Robert Scott Hensey
Estimating the term…
Catalysts and processes are described to make low molecular weight, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) having a high terminal vinylidine content from a feed stock containing one or more 1-olefin and other volatile hydrocarbon liquids using a Ziegler catalyst made from a Group IVb metallocene and an aluminoxane cocatalyst, particularly bis(cyclopentadienyl) and bis(indenyl) titanium(IV), zirconium(IV) or hafnium(IV) compounds and methylaluminoxane. A particularly useful feed stock is a refinery stream containing 1-olefins and isobutylene which is used to make polyisobutylene. The reactive, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) can be functionalized to make a number of products useful as sealants, petroleum additives, adhesives, and the like by reacting the terminal vinylidine linkage with an aromatic, an epoxidation agent, a silylation agent, maleic anhydride, carbon monoxide and hydrogen, hydrogen, a halogen, a hydrohalogen, and the like.
A process to form an essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin) of molecular weight between about 300 and about 10,000 that exhibits a terminal vinylidene content of more than 80%, which comprises polymerizing under solution phase conditions a 1-olefin(s)-containing feed wherein the 1-olefin(s) in said feed consist essentially of one or more C.sub.3 to C.sub.20 1-olefins using a catalyst comprising a cyclopentadienyl or indenyl Periodic Group IVb metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater, said feed containing at least about 1 wt. % isobutylene.
A process to form an essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin), which process comprises polymerizing under solution phase conditions a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins using a catalyst comprising a cyclopentadienyl or indenyl titanium(IV), zirconium (IV) or hafnium(IV) metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater, to form a poly(1-olefin) or copoly(1-olefin) having molecular weight in a range from about 300 to about 10,000 and terminal vinylidene content of more than 80%.
An essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin) polymer having a molecular weight in a range from about 300 to about 10,000 and a terminal vinylidene content of more than 80%, which poly(1-olefin) or copoly(1-olefin) is made by polymerizing, under solution phase conditions, a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins using a catalyst comprising a cyclopentadienyl or indenyl titanium(IV), zirconium (IV) or hafnium(IV) metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater.
A process to sequentially form polyisobutylene and an essentially-1-olefin-containing poly(1 -olefin) or copoly(1-olefin) of molecular weight between about 300 and about 10,000 that exhibits a terminal vinylidene content of more than 80% from a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins, the feedstock containing between about 0.1 and 55 wt. % isobutylene, which process comprises the steps:
A process to form an essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin) of molecular weight between about 300 and about 10,000 that exhibits a terminal vinylidene content of more than 80%, which comprises polymerizing under solution phase conditions a olefin(s)-containing feed, wherein the 1-olefin(s) in said feed consist essentially of one or more C.sub.3 to C.sub.20 1-olefins, using a catalyst comprising a bis(indenyl) Periodic Group IVb metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater, said feed containing at least about 1 wt. % isobutylene.
A process to form an essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin), which process comprises polymerizing under solution phase conditions a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins using a catalyst comprising a bis(indenyl) titanium(IV), zirconium (IV) or hafnium(IV) metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater, to form a poly(1-olefin) or copoly(1-olefin) having a molecular weight in a range from about 300 to about 10,000 and terminal vinylidene content of more than 80%.
An essentially terminally-unsaturated, viscous, essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin) of molecular weight between about 300 and about 10,000 that exhibits a terminal vinylidene content of more than 80%, which poly(1-olefin) or copoly(1-olefin) is made by polymerizing under solution phase conditions a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins using a catalyst comprising a bis(indenyl) titanium(IV), zirconium (IV) or hafnium(IV) metallocene and an aluminoxane cocatalyst, wherein the molar ratio of aluminoxane to metallocene is about 150 or greater.
A process to sequentially form polyisobutylene and an essentially-1-olefin-containing poly(1-olefin) or copoly(1-olefin) of molecular weight between about 300 and about 10,000 that exhibits a terminal vinylidene content of more than 80% from a 1-olefin(s)-containing feedstock, wherein the 1-olefin(s) in said feedstock consist essentially of C.sub.3 -C.sub.20 1-olefins, comprising more than 1 weight percent of at least one volatile hydrocarbon liquid and less than 99 weight percent based on total feedstock of one or more C.sub.3 to C.sub.20 1-olefins, the feedstock containing between about 0.1 and 55 wt. % isobutylene, which process comprises the steps:
Dependencies are inferred from the claim text.