3m Innovative Properties Company

Other

Jay F Schulz

George G I Moore

Klaus Hintzer

Richard M Flynn

Werner Schwertfeger

Tilman C Zipplies

Harald Kaspar

Andreas R Maurer

Michael Jürgens

Herbert Koenigsmann

Fred Boyle McCormick

Kai Helmut Lochhaas

Junkang Jacob Liu

Ralph R Roberts

Ludwig Mayer

Michael C Dadalas

Elisa M Cross

Mita Chattoraj

Zai-Ming Qiu

Allan T Worm

Miguel Antonio Guerra

George G Moore

Michael G Costello

Michael Andrew Yandrasits

Michael Juergens

Erik D Hare

Christopher L Gross

Kai Helmut Löchhaas

Michael JÜRGENS

George GI Moore

Werner Schwertferger

A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula:[R&#x2014;O-L-COO]X&#x2003;&#x2003;(I)

Method of making fluoropolymer dispersion

A method for removing a fluorinated carboxylic acid or salt thereof from an aqueous liquid by contacting the aqueous liquid with adsorbent particles. The fluorinated carboxylic acid or salt thereof is selected from the group consisting of partially fluorinated carboxylic acids or salts thereof and fully fluorinated carboxylic acids or salts thereof.

Method of removing fluorinated carboxylic acid from aqueous liquid

A coating composition having (i) an aqueous dispersion of fluoropolymer particles comprising a non-melt processible polymer of tetrafluoroethylene, (ii) a fluorinated surfactant, (iii) a non-ionic non-fluorinated surfactant and (iv) a non-fluorinated polymer, wherein the fluorinated surfactant is selected from fluorinated carboxylic acids or salts thereof of the general formula (I):[R&#x2014;O-L-COO]X&#x2003;&#x2003;(I)wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, Rrepresents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, Xrepresents a cation having the valence i and i is 1, 2 or 3.

Coating composition

A fluorochemical ketone compound consists of two terminal, branched, independently fluoroalkylcarbonyl or perfluoroalkylcarbonyl groups and an intervening linear perfluoropolyether segment, each of the terminal groups optionally comprising at least one catenated heteroatom, and the perfluoropolyether segment consisting essentially of at least one tetrafluoroethyleneoxy moiety and, optionally, at least one difluoromethyleneoxy moiety, the moieties being randomly or non-randomly distributed within the perfluoropolyether segment.

Fluorochemical ketone compounds and processes for their use

Described is a compound having at least one acrylate monomer, said monomer including at least one pendant group of the structure &mdash;O&mdash;CH(R )(R &prime;), wherein R is a straight chain or branched perfluoroalkyl group with five or less carbon atoms, and R &prime; is a branched perfluoroalkyl group with three to five carbon atoms; and a method of reducing the surface tension of a liquid by adding a compound of the invention to the liquid. Also described is a composition that includes a compound of the invention in an aqueous solution or dispersion; a method of treating a substrate to render it oil- and/or water-repellent that includes treating a substrate with a composition of the invention; a method of coating an electrical device that includes applying a composition of the invention; a method of coating optical fibers that includes applying a composition of the invention; and an article that includes a substrate treated with a composition of the invention.

Degradable, amorphous, fluorochemical acrylate polymers

A method for the preparation of a perfluorinated acid fluoride (especially 3-alkoxy propionic acid fluoride) is provided. The method results in high yields of the acid fluoride.

Perfluorinated acid fluorides and preparation thereof

A method is provided for preparation of chlorofluoroethers ClCF CFClOR and Cl CFCFClOR by direct fluorination of Cl CHCH OR and Cl CCH OR , respectively, wherein R is a C -C alkyl-or acyl-containing group optionally up to 5 ether oxygen atoms and optionally substituted by functional groups and R , is the corresponding perfluoroalkyl or perfluoracyl-containing group.

Method of making chlorofluoroethers

Acrylates having a high degree of halogenation, as well as polymers that include one or more mer units derived from such acrylates provide materials having tailorable optical and physical properties. The polymers find utility particularly in optical devices including optical waveguides and interconnecting devices.

Halogenated acrylates and polymers derived therefrom

The present invention describes a novel process for the preparation of perfluoro allyl ethers. The process involves providing a hydrogen-containing precursor comprising at least one 1,2-dichloro alkyl ether moiety, fluorinating the precursor to provide a perfluorinated intermediate, and dechlorinating the perfluorinated intermediate to the corresponding perfluorinated ether. A reaction product of a perfluorinated olefin and an allyl ether may also be used as a precursor. Such a reaction product is chlorinated before the fluorination step. Perfluoro vinyl or allyl ethers may be used in place of the perfluorinated olefin. Novel perfluoro alkoxy compounds are also described.

Fluorine containing allylethers and higher homologs

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Inver Grove Heights, MN, United States of America

Jay F Schulz