Shell Oil Comapny

Adriaan A Van Der Huizen

Eric Johannes De Boer

Wouter De Jong

Frederik Hendrik Van Der Steen

Bart Johan Ruisch

Alan Villena

Judith Johanna Walhof

Lodewijk Schoon

Bart Hessen

Hubertus Cornelis Van Strien

Heleen Johanna De Smet

Adrianus Johannes Van Der Linden

Carl Lesley Willis

Fred F Hage

Marijke De Boer-Wildschut

Eric J DeBoer

Johannes Cornelis Van Der Arend

Maria Johanna Kersten

The invention provides a catalyst composition for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:

Process for hydrogenation of conjugated diene polymers and catalyst

The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:

The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenic unsaturation, which comprise:

Process for hydrogenation on conjugataed diene polymers and catalyst

A process for the manufacture of linear, substantially gel free, high cis 1,4 poly(butadiene) comprising polymerization in the presence of (a) a catalyst comprising at least one cobalt compound, at least one organoaluminium compound, and water, and (b) a cycloalkane as main solvent component, and (c) at least one substituted benzene as polymerization regulator of the general formula ##STR1## wherein n is an integer in the range of from 3 to 5, and wherein each R represents a lower alkoxy group containing from 1 to 6 carbon atoms.

Manufacturing process for high cis poly(butadiene)

Novel metallated polyolefins are produced by contacting a polyolefin having a vinylidene group in the terminal portion with organoalkali metal compound in the presence of alkali metal t-alkoxide or tertiary amine. The metallated polyolefin is used to initiate the polymerization of polymerizable monomers to produce block copolymers of at least two blocks, at least one of which is saturated polyolefin.

Polymer production

Production of alkali metallated olefin polymers

A highly active anionic polymerization catalyst prepares butadiene polymers having a high 1,4-trans-dienyl content, the catalyst containing an organolithium compound, a barium, strontium or calcium compound, and trialkylaluminum compounds having at least 13 carbon atoms per molecule.

Anionic polymerization catalyst compositions

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Amsterdam, Netherlands

Adriaan A Van Der Huizen