Petrolite Corporation

Rudolf S Buriks

Allen R Fauke

James G Dolan

David W Griffiths

Harold L Becker

Eva G Lovett

Michael I Naiman

John H Munch

Franklin E Mange

David J Poelker

Copolymers of an acrylic compound and a polymerizable quaternary ammonium compound are useful as flotation-aids for removing oils and/or solid materials from aqueous systems. The polymerizable quaternary ammonium compounds are 1-alkoxy-2-hydroxy propyl quaternaries of N-(N'N'-dialkylaminoalkyl)acrylamides.

Flotation-aid composition and method of use thereof

Oil-in-water emulsions are resolved by contacting the emulsion with a polymer of vinyl phenol or a salt thereof. The polymers may be made by hydrolyzing polyacetoxystyrene.

Vinyl phenol polymers for demulsification of oil-in-water emulsions

A composition comprising the reaction product resulting from subjecting to grafting and esterification reaction conditions a mixture comprising a polyoxyalkylene amine and a vinyl monomer. The mixture is substantially free of copolymers derived from a polyoxyalkylene glycol and a diglycidyl ether, and the reaction product is partially cross-linked. Methods of use and preparation of such compositions are also disclosed.

Demulsifier compositions and methods of preparation and use thereof

This invention relates to N,N-diallyl-3-hydroxy azetidinium salts, homo- and co-polymers thereof; and the preparation thereof. This invention also relates to the use of the above polymers as demulsifiers.

Azetidinium salts and process of preparation

Novel demulsifier compositions, their method of preparation and use as demulsifiers are described. The novel demulsifiers comprise the partially condensed reaction product of a blend of at least two oxyalkylated materials with a vinyl monomer. The demulsifiers are useful in the resolution of water-in-oil emulsions.

Demulsifier composition and method of use thereof

This invention relates to vinyl-type interpolymers having an overall carbon/oxygen atom ratio of about 2 to about 4, which is preferably derived from 2 types of vinyl monomers:

Vinyl-type interpolymers and uses thereof

A process of treating an aqueous system which comprises adding to the system a stable emulsion of an aqueous internal phase in a non-aqueous external phase. The aqueous internal phase contains a homo- or a copolymer of an acrylamido alkylene quaternary ammonium salt.

Process of treating aqueous systems

This invention relates to .alpha.-olefin-acrylonitrile copolymers and uses thereof, particularly as antistatic agents in organic liquids such as hydrocarbon fuels.

Olefin-acrylonitrile copolymers and uses thereof

Process of demulsifying and/or clarifying aqueous systems with

Water-in-oil emulsions of homopolymers and copolymers of acrylamido alkylene quaternary ammonium salts and their use as sewage treatment acids, demulsifying agents, water clarification aids, etc.

Water-in-oil emulsions of polymers of quaternary ammonium compounds of

Azetidinium salts and polymers and copolymers thereof

This invention relates to an exothermic emulsion polymerization method characterized by the presence of a low boiling fluid as a component of one of the phases of the emulsion system, said low boiling fluid having the following characteristics:

Exotherm control in polymerization

This invention relates to adducts of salts of polymerizable tertiary amines with acrylic compounds illustrated by acrylamide and acrylonitrile; to polymers and copolymers containing said adducts and to processes for preparing them. This invention also relates to the use of said polymers and copolymers, particularly in the clarification of turbid waters by flocculation or flotation of oil and/or suspended solids. In the preferred embodiment, the quaternary adduct monomer is: ##STR1## where X is an anion, preferably halide such as chloride or carboxylate such as acetate; and polymers and copolymers containing units thereof.

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St. Louis, MO, United States of America

Rudolf S Buriks