3m Innovative Properties Company

Other

Michael Juergens

Kai Helmut Lochhaas

Klaus Hintzer

Naiyong Jing

Richard M Flynn

Tilman C Zipplies

Harald Kaspar

Thomas J Blong

Kevin M Hamer

Oleg Shyshkov

Zhigang Yu

Mark W Muggli

Timothy D Fletcher

Muhammad Imran Ul-haq

Sabine H G Beuermann

Werner Schwertfeger

Larry S Hebert

Jeffrey A Peterson

George Van Dyke Tiers

Herbert Koenigsmann

Yaming Wang

Gezahegn D Damte

Yiwen Chu

Gunther J Kaempf

Zai-Ming Qiu

Rudolf J Dams

Miguel Antonio Guerra

Andreas R Maurer

Frans A Audenaert

Michael C Dadalas

Ludwig Mayer

Michael S Terrazas

André Streiter

Christoph T R Schuell

Bernd Kühneweg

Andrea Habbe

Wolfgang Schoeppel

George GI Moore

Anti-icing stacks for protecting an aerodynamic surface are described. In some embodiments, an anti-icing stack includes an anti-icing layer, an elastomeric erosion protection layer, and an additional layer. The erosion protection layer is disposed between the anti-icing layer and the additional layer. The additional layer has a thickness greater than the thickness of the erosion protection layer and a tensile modulus of no more than the tensile modulus of the erosion protection layer. The additional layer may be a foam adhesive layer.

Anti-icing stack

A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.

Fluoropolymer coatings comprising aziridine compounds and non-fluorinated polymer

Fluoropolymer coatings comprising aziridine compounds

Fluoropolymers containing one or more azide group wherein the azide group is not a sulfonyl-azide group and processes of preparing them.

Azide-containing fluoropolymers and their preparation

Described herein is a method of purifying a product and recycling water comprising the following steps:

Fluoropolymer compositions and purification methods thereof

Presently described are methods of making coating comprising aqueous fluoropolymer latex dispersions, aqueous fluoropolymer coating compositions, coated substrates, and (e.g. backside) films of photovoltaic cells. In one embodiment, the film comprises at least one fluoropolymer comprising repeat units derived from VF, VDF, or a combination thereof; inorganic oxide nanoparticles; and a compound that reacts with the repeat units derived from VF and VDF to crosslink the fluoropolymer and/or couple the fluoropolymer to the inorganic oxide nanoparticles. In another embodiment, the backside film comprises at least one fluoropolymer comprising repeat units derived from VF, VDF, or a combination thereof; and an amino-substituted organosilane ester or ester equivalent crosslinking compound.

Fluoropolymer coatings suitable for films of photovoltaic modules

Described herein is a composition comprising an aqueous polymerization reaction product of fluorinated monomers and wherein the polymerization is initiated (i) in the absence of a fluorinated emulsifier and whereby no fluorinated emulsifier is added during polymerization or (ii) in the presence of an fluorinated emulsifier selected from: [R&#x2014;O-L-COO-]X(I) wherein L represents a linear or branched, non-fluorinated, partially fluorinated, or fully fluorinated alkylene group, Rrepresents a linear or branched partially or fully fluorinated aliphatic group or a linear or branched partially or fully fluorinated aliphatic group interrupted with at least one oxygen atom, Xrepresents a cation having the valence i and i is 1, 2 or 3; wherein the reaction product and/or the resulting aqueous phase are substantially free of di- and tri-alkylamines and substantially free of low molecular weight fluoroorganic compounds and methods thereof.

Compounds represented by formula (Rf-Q-X)&#x2014;Z. Each Rf is independently a partially fluorinated or fully fluorinated group selected from Rf-(O)&#x2014;CHF&#x2014;(CF)&#x2014;; [Rf-(O)C(L)H&#x2014;CF&#x2014;O]&#x2014;W&#x2014;; CFCFH&#x2014;O&#x2014;(CF)&#x2014;; CF&#x2014;(O&#x2014;CF)&#x2014;; and CF&#x2014;O&#x2014;(CF)&#x2014;O&#x2014;CF&#x2014;. Methods of reducing surface tension of a liquid, making foams, and treating a surface using the compounds are also disclosed.

Fluorinated ether compounds and methods of using the same

Method of making fluoropolymers by emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated emulsifier, said method comprises adding a doping agent in a weight ratio with respect to the emulsifier of from about 1:2 to about 1:20, said doping agent has a melting point of equal or less than 30&#xb0; C. and a boiling point of at least about 100&#xb0; C. and is selected from the group consisting of fluorinated cyclic hydrocarbons, fluorinated polyoxyalkenes, fluorinated alkenes and fluorinated polyoxyalkenes.

Method of preparing fluoropolymers by aqueous emulsion polymerization

Growing community of inventors

Moenchengladbach, Germany

Michael Juergens