3m Innovative Properties Company

Nicholas L Untiedt

Thomas P Klun

Stephen C P Joseph

Cheryl L S Elsbernd

Naiyong Jing

Moses Mekala David

Paul B Armstrong

Adam J Meuler

David A Gzik

Richard John Pokorny

Patricia M Savu

Jeffrey O Emslander

David S Hays

David J Kinning

Joan M Noyola

Kristy A Gillette

Chad M Amb

Phillip E Tuma

Elaine M Yorkgitis

Jonah Shaver

Jon P Nietfeld

Phillip H Henna

Kent C Hackbarth

Cheryl LS Elsbernd

Described herein is fluorinated dye comprising: a fluorescing coumarin-derived moiety connected to an oligomer of hexafluoropropylene oxide via a non-fluorinated divalent linking group. Such fluorinated dyes are soluble in fluorinated fluids and may be used to detect leaks in various systems such as refrigerant, air conditioning and/or heat transfer systems.

Fluorinated coumarins

Presently described are components of a spray application system. At least one component comprises a liquid repellent surface layer. The liquid repellent surface (e.g. layer) may comprise a porous layer and a lubricant impregnated into pores of the porous layer; a fluoropolymer; a fluorochemical material and an organic polymeric binder; or a fluorochemical material melt additive and a thermoplastic polymeric material component. The component is typically a liquid reservoir, a liquid reservoir liner, a lid for a liquid reservoir or liner, or a combination thereof. In some embodiments, the component comprises a thermoplastic polymeric material. In some favored embodiments, the component is a removable liquid reservoir or liner. In some favored embodiments, the component is a collapsible liquid reservoir or liner. The spray application system typically further comprises a gravity-fed spray gun. Also described are spray application systems, methods of using a spray application system, as well as methods of making a component of a spray application system wherein the component has a liquid repellent surface.

Spray application system components comprising a repellent surface and methods

Presently describes are articles, such as liquid reservoirs, comprising a liquid repellent surface. The liquid repellent surface comprises a surface layer comprising a silane or siloxane material, wherein the liquid repellent surface is not a lubricant impregnated surface. In one embodiment, the liquid repellent surface (e.g. layer) comprise a silicone melt additive and a thermoplastic polymeric material component. In some embodiments, the article (e.g. liquid reservoir) comprise a thermoplastic polymeric material.

Liquid reservoirs and articles comprising a repellent surface comprising a siloxane material

A hardcoat composition is described comprising urethane (meth)acrylate oligomer having a first functional groups; an acrylic polymer having second functional groups; wherein the first and second functional groups form a hydrogen bond; and silica nanoparticles. The hardcoat composition may be cured by actinic radiation, upon which the acrylic polymer may be removed by solvent extraction. Also described are articles comprising the cured hardcoat described herein disposed on a surface of a substrate and methods of making an article.

Flexible hardcoat comprising urethane oligomer hydrogen bonded to an acrylic polymer

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Minneapolis, MN, United States of America

Nicholas L Untiedt