Shell Oil Comapny

Herman M Muijs

John D Shepley

Arend Kuindert Van Helden

Philip J De Smedt

Nicolaas Cornelis Beers

Maria Manuel De Castro Loureiro Barreto Rosa

Jan Harm Mulder

Sebastianus P Roefs

Jan V Schaik

Emulsifiable oil, suitable for use as oil phase in oil-based drilling fluids, having one or more ketones with a flashpoint of at least 55.degree. C., in particular oligoketones obtainable by co-oligomerization of carbon monoxide and olefins.

Emulsifiable oil

It is herein disclosed process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by reacting the monomers under polymerization conditions in the presence of a catalyst system based on

Preparation of copolymers

A surfactant composition, suitable for enhanced oil recovery comprising in a 60:40 to 10/90 weight ratio a) (o,m)- and/or (o,p)-dialkylbenzene alkali sulfonate and b) polyalkoxyphenyl ether alkali sulfonate.

Surfactant composition

Surfactant composition comprising an alkyl amine ethoxylate and a gel breaker, wherein the gel breaker is a random copolymer of ethylene oxide with propylene oxide/or butylene oxide.

A novel lubricating composition useful in the manufacture of tufted textile articles comprises a polyalkoxylate lubricating oil and a minor amount of a long chain fatty acid.

Lubricating compositions for primary backing fabrics used in the

Textile fiber lubricants are disclosed comprising a major amount of (1) the reaction product of (a) at least one C.sub.1 to C.sub.10 alcohol, or (b) at least one C.sub.2 to C.sub.4 alkylene oxide with (c) at least one C.sub.2 to C.sub.4 alkylene oxide, and a minor amount of a polymer of an ethylenically unsaturated carboxylic acid.

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Amsterdam, Netherlands

Herman M Muijs