3M Innovative Properties Company

Minnesota Mining and Manufacturing Company

Kathryn M Spurgeon

Scott R Culler

Thomas P Klun

Olester Benson, Jr

Gary L Holmes

David H Hardy

William A Hendrickson

Kimberly K Harmon

Robert V Heiti

Charles J Studiner, Iii

Naiyong Jing

Mark W Muggli

Bruce D Orensteen

George Van Dyke Tiers

Joseph V Crimando

Randy S Bay

Brant Ulrick Kolb

Rudolf J Dams

Tatsuo Fukushi

Vivian Wynne Jones

Christopher A Haak

Chuntao Cao

Attila A Molnar

Tadesse G Nigatu

Louis D Hibbard

Andrew M Hine

Steven R Vanhoose

David B Bilbrey

Attila Molnar

Retroreflective sheeting having a structured layer of cube corner elements and an at least one optically variable mark therein, and methods of making same.

Cube corner sheeting having optically variable marking

Lenticular microstructures and methods of making the same is disclosed. The lenticular microstructures include composite lenticular microstructures having a first light transmissive polymeric layer, a second light transmissive polymeric layer, and an interface therebetween, wherein the first light transmissive polymeric layer has a first index of refraction, the second light transmissive polymeric layer has a second index of refraction, and the first and second indices of refraction have an absolute difference of at least 0.0002.

Article having composite lenticular microstructures and method of making

Methods for making differentially pattern cured microstructured articles are disclosed, using a molding tool having a microstructured surface, a patterned irradiation to generate irradiate and non-irradiated regions in a radiation curable resin. Different combinations of molding tools and patterned irradiation provide numerous variants of differentially pattern cured microstructured articles without requiring costly modification of the molding tools.

Methods for making differentially pattern cured microstructured articles

Retroreflective articles and methods of making the same, wherein the retroreflective articles () include composite cube-corner elements () having a first light transmissive polymeric layer (), a second light transmissive polymeric layer (), and an interface therebetween, wherein the first light transmissive polymeric layer has a first index of refraction, the second light transmissive polymeric layer has a second index of refraction, and the first and second indices of refraction have an absolute difference of at least 0.0002.

Retroreflective articles having composite cube-corners and methods of making

Method of forming a very hydrophobic, extremely hydrophobic or superhydrophobic surface comprising depositing a composition comprising hydrophobic microparticles, hydrophobic nanoparticles, or a mixture thereof and a binder in sufficient quantity to provide a hydrophobic or a superhydrophobic surface on a substrate having a micropatterned surface having raised portions, recessed portions or a combination thereof.

Articles having durable hydrophobic surfaces

Polymer bonding compositions having greater than about 1 milliequivalent primary amine/100 grams of the polymer, more preferably greater than about 3 milliequivalent non-tertiary amine/100 grams of the polymer. Preferably the polymer is not significantly crosslinked. These bonding compositions may be especially useful for bonding fluropolymers. Processes for making the novel polymers and the resulting multilayer bonded articles are described. The polymers include polymer-bonded ZNHLSi(OP)(X)(Y)units. The bonding composition may be used for making multi-layer polymer laminates such as tubes and films and containers.

Bonding compositions

Polymer bonding compositions having greater than about 1 milliequivalent primary amine/100 grams of the polymer, more preferably greater than about 3 milliequivalent non-tertiary amine/100 grams of the polymer. Preferably the polymer is not significantly crosslinked. These bonding compositions may be especially useful for bonding fluoropolymers. Processes for making the novel polymers and the resulting multilayer bonded articles are described. The polymers include polymer-bonded ZNHLSi(OP)(X)(Y)units. The bonding composition may be used for making multi-layer polymer laminates such as tubes and films and containers.

Disclosed are various fluoropolymer blend combinations and multilayer articles comprising a blend in a first layer and a second layer comprising a polymer bonded to the first layer. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, and a second layer bonded to the first layer, the second layer comprising a partially-fluorinated thermoplastic polymer, a perfluorinated thermoplastic polymer, or a combination thereof. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, at least one of which comprises a partially-fluorinated thermoplastic polymer, and optionally at least one perhalogenated polymer, and a second layer bonded to the first layer, the second layer comprising an at least partially-fluorinated thermoplastic polymer. The invention also provides processes for preparing blended fluoropolymers and multilayer articles comprising a fluoropolymer layer.

Fluoropolymer blends and multilayer articles

Precisely shaped abrasive composites are disclosed. The abrasive composites comprise from 20 to 75 percent by weight at a plurality of abrasive grits and a binder.

Precisely shaped abrasive composite

Precisely shaped composites and methods for making these composites are disclosed. The method of this invention comprises the steps of:

Method of making a coated abrasive article comprising precisely shaped

Coatable compositions suitable for use in producing abrasive articles are presented. The inventive coatable compositions comprise a free radically polymerizable composition, abrasive particles, and a photoinitiator system. The photoinitiator system consists essentially of a compound which cleaves via .alpha.-cleavage and has a molar absorptivity in dilute methanol solution ranging from about 4 to about 400 liter/mole-cm in at least some portion of the UV/visible spectrum ranging from about 395 and about 500 nanometers. Abrasive articles incorporating cured versions of the compositions are presented, as well as methods of making and using the articles.

Growing community of inventors

River Falls, WI, United States of America

Kathryn M Spurgeon