Akzo Nobel N.v.

Alberto Culver Company

Akzo N.v.

Robert F Farmer

James F Gadberry

Alison A Fleming

Andress K Doyle

Michael D Hoey

Glenda Del Carmen Vale

Larry J Alania

Randy E Dobson

Thomas J Pallone

William C Weber, Jr

Stanley B Mirviss

Ralph Franklin

John P Bell

William John Parr

Douglas M Lucas

James F Gadberyy

Michael Kanakia

A method for controlling the rheology of aqueous systems, particularly for those intended for underground use, includes injecting an aqueous fluid containing a surfactant gelling agent into the system. The surfactant gelling agents are, for example, fatty aliphatic amidoamine oxides, salts of an alkoxylated monoamine with an aromatic dicarboxylic acid, and salts of an alkyldiamine with an aromatic dicarboxylic acid. The surfactant gelling agents can be absorbed onto particulate supports to facilitate delivery of the gelling agent. The additives may be incorporated in the viscoelastic fluid to tailor its use in hydraulic fluids, drilling muds, fracture fluids, and in applications such as permeability modification, gravel packing, cementing, and the like.

Method for controlling the rheology of an aqueous fluid and gelling agent therefor

A method for controlling the rheology of aqueous systems, particularly for those intended for underground use, includes injecting an aqueous fluid containing a surfactant gelling agent into the system. The surfactant gelling agents are, for example, fatty aliphatic amidoamine oxides, salts of an alkoxylated monoamine with an aromatic dicarboxylic acid, and salts of an alkyldiamine with an aromatic dicarboxylic acid. The surfactant gelling agents can be adsorbed onto particulate supports to facilitate delivery of the gelling agent. The additives may be incorporated in the viscoelastic fluid to tailor its use in hydraulic fluids, drilling muds, fracture fluids, and in applications such as permeability modification, gravel packing, cementing, and the like.

Biocidal preservatives for use especially in preventing rotting and deterioration of wood include quaternary ammonium compounds which preferably have a fatty aliphatic substituent on the quaternary nitrogen atom. Especially preferred are cocoalkyl substituents. Other substituents can include alkoxy groups, arenes, and heterocyclic groups with or without ring substitutions, for example. The quaternary ammonium compound can also contain an amine nitrogen and can be complexed with copper.

Biocidal preservatives

Engine deposits are reduced by adding an effective deposit-controlling amount of an esteramine to hydrocarbon fuel.

Fuel compositions containing esteramines

An .alpha.-aminonitrile compound derived from the reaction, in the presence of a cyanide source of (1) a bisulfite adduct of a carbonyl compound selected from the group consisting of an aldehyde and a ketone with (2) a fatty alkyl alkylene diamine containing two reactible amino functionalities which is of the formula RNHR.sub.1 NH.sub.2, where R is fatty alkyl and R.sub.1 is lower alkylene of up to six carbon atoms.

.alpha.aminonitriles derived from reaction of carbonyl compounds and

.alpha.-aminonitrile compounds derived from a fatty alkyl alkylene diamine containing two reactible amino functionalities are disclosed which are of the formula ##STR1## where R is C.sub.12 -C.sub.22 fatty alkyl, R.sub.1 is alkylene, R.sub.2 is alkyl, and R.sub.3 is alkyl or hydrogen.

.alpha.-aminodinitriles containing fatty alkyl C.sub.12 to C.sub.22 group

.alpha.-aminonitrile compounds derived from a fatty alkyl alkylene diamine containing two reactible amino functionalities are disclosed which are of the formula ##STR1## where R is C.sub.12 -C.sub.22 fatty alkyl, R.sub.1 is alkylene, R.sub.2 is aryl, and R.sub.3 is alkyl, aryl, or hydrogen.

.alpha.-aminomononitriles containing fatty alkyl C.sub.12 to C.sub.22

.alpha.-aminonitrile compounds derived from a fatty alkyl alkylene diamine containing two reactible amino functionalities are disclosed which are of the formula ##STR1## where R is C.sub.12 -C.sub.22 fatty alkyl, R.sub.1 is alkylene, R.sub.2 is aryl, and R.sub.3 is aryl or hydrogen.

.alpha.-aminonitrile compounds derived from a fatty alkyl alkylene diamine containing two reactible amino functionalities are disclosed.

.alpha.-aminonitriles derived from fatty alkyl alkylene diamines

A packaged aerosol preparation is provided for use in removing lint, hair and other particulate matter from fabrics. The sprayable liquid composition is packaged in a valve-equipped aerosol container. The composition includes an acrylic polymer or copolymer resin, a tackifier or plasticizer, and a liquified propellant consisting of either dimethyl ether or a mixture of dimethyl ether with a hydrocarbon propellant. The composition can be applied to absorbent substrates such as paper towels to provide an effective, disposable removal device.

Aerosol preparations for removing lint, hair and other particulate

A novel method is provided for removing lint, hair, and other particulate matter from fabric articles such as clothing, upholstery, or draperies. A sprayable aerosol adhesive composition is applied to flexible sheet material, such as a paper towel, so as to splatter the surface of the sheet with tacky adherent globules of a tackified or plasticized resin without forming a continuous coating on the surface. The sprayed surface of the sheet is ready within 60 seconds for contacting with the fabric from which the particulate matter is to be removed.

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Waccabuc, NY, United States of America

Robert F Farmer