Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Roger R Alm

Richard M Stern

Irvin F Dunsmore

Chetan P Jariwala

Robert F Kamrath

Steven J Martin

James E Lockridge

Jeffrey G Linert

Edward R Hauser

Richard A Guenthner

Gail S Boardman

Nicole L Franchina

Imelda A Muggli

Thomas K Wilkinson

Aaron D Otteson

Pamela A Wolf

A soil-resistant spin finish composition based on select derivitized polyethers is provided that can be applied to a fiber at the earliest stages of spinning, can remain on the fiber through the entire manufacturing process, and can be left on the fiber in the final article of commerce. The spin finish composition provides excellent fiber lubrication during high-speed spin processing, yet is sufficiently soil resistant to negate the need for scouring the final fiber construction, even absent the presence of additional coatings or agents.

Soil-resistant spin finish compositions

This invention provides compositions suitable for treating fibrous substrates to render them durably resistant to dry soil and durably repellent to water and oil. One composition is an aqueous emulsion comprising: a dry soil resistant and water and oil repellent fluorochemical treatment and an effective amount of one or more fluorochemical surfactants wherein the surfactants comprising one or two fluorochemical groups and one or two water-solubilizing polar groups. Another composition is an aqueous emulsion comprising: a dry soil resistant and water and oil repellent fluorochemical treatment; an effective amount of one or more fluorochemical surfactants wherein the surfactants comprising one or two fluorochemical groups and one or two water-solubilizing polar groups; and one or more non-fluorinated additives. A third composition is an aqueous emulsion comprising: a dry soil resistant and water and oil repellent fluorochemical treatment comprising one or more fluorine-free extender compounds, and an effective amount of one or more fluorochemical surfactants wherein the surfactants comprising one or two fluorochemical groups and one or two water-solubilizing polar groups.

Aqueous anti-soiling composition

Polymerizable, organic-soluble, oligomeric fluorochemical surfactant compositions having at least two pendent fluoroaliphatic groups, at least two organic-solubilizing groups, and a pendent polymerizable olefinic group. Also a method of preparing such surfactant compositions. The compositions reduce the surface energy of acrylate-containing mixtures and acrylate-based pressure-sensitive adhesives. They can be used in preparing acrylate-based pressure-sensitive adhesives that coat well due to the presence of the surfactant and maintain adhesive performance upon aging.

Polymerizable fluorochemical surfactants

A process for the synthesis of the fluorochemical compound having formula

Process for the preparation of fluoroaliphatic aminocarboxylate

An improved aqueous film-forming foamable concentrate which is particularly useful for extinguishing flammable liquid fires. The preferred formulation contains (a) fluoroaliphatic amphoteric surfactant, preferably a fluorinated aminocarboxylate having a C.sub.4 to C.sub.10 perfluoroaliphatic group, (b) fluoroaliphatic anionic surfactant, preferably a C.sub.4 to C.sub.10 perfluoroalkane suflonate, and (C) short chain (C.sub.6 to C.sub.10) alkyl ether sufate hydrocarbon surfactant. When the concentrate is diluted with fresh or sea water and aerated, an aqueous film-forming foam is produced which is useful in extinguishing flammable liquid fires such as a fuel fire. The foam quickly spreads a superior vapor-sealing film on the surface of a burning fuel. The film reforms quickly when disturbed. The improved film-forming properties results in quicker and more reliable extinguishment of flammable liquid fires.

Aqueous film-forming foamable solution useful as fire extinguishing

Air is mechanically entrained in a dyed or colored, aqueous solution comprising surfactant, poly(oxyalkylene) polyisocyanate prepolymer and the reaction product of said prepolymer and one or more isocyanate-reactive dyes, the poly(oxyalkylene) portion of said prepolymer containing sufficient oxyethylene units to render the prepolymer and the reaction product water-soluble and hydrophilic, to form a dyed or colored, fluid, aqueous air foam which is sprayed or otherwise applied to exposed surface of a substrate, e.g. a sanitary landfill, the applied foam gelling or increasing in viscosity, due to the polymerization, e.g., by reaction with water or polyamine, of the prepolymer and the reaction product, to form a dyed or colored, poly(oxyalkylene) polyurea polymer, forming a persistent, dyed or colored, gelled or viscous air foam in the form of a coating on the exposed surface, thus sealing or otherwise protecting or controlling the substrate and coloring the substrate making it more visible, decorative, or less visible, thereby camouflaging the substrate.

Dyed aqueous air foams

Air is mechanically entrained in an aqueous solution of surfactant, polyamine reactant, and low moisture sensitive poly(oxyalkylene) poly(aliphatic isocyanate) prepolymer the poly(oxyalkylene) portion of which contains sufficient oxyethylene units to render the prepolymer water-soluble and hydrophilic, to form a fluid, water-based, air foam which is sprayed or otherwise applied to exposed surface of a substrate, such as a body of hazardous material, the applied foam gelling or increasing in viscosity, due to reaction of the polyisocyanate prepolymer with the polyamine in the presence of the water to form a poly(oxyalkylene) polyurea polymer containing polyurylene-containing segments formed from the reaction, and forming a persistent gelled air foam or viscous air foam in the form of a coating on the exposed surface, thus sealing or otherwise protecting or controlling the substrate.

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Lake Elmo, MN, United States of America

Roger R Alm