3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Robert J Devoe

Matthew T Scholz

Terry Lee Smith

Smarajit Mitra

Albert I Everaerts

George W Griesgraber

Moses Mekala David

Charles David Hoyle

David Adams Ender

Robert J Webb

George G I Moore

Mikhail L Pekurovsky

Olester Benson, Jr

Christopher Stewart Lyons

Douglas Scott Dunn

Wayne Scott Mahoney

James M Jonza

Guy D Joly

Robin Edgar Wright

Ying-Yuh Lu

Mark A Roehrig

Jun-Ying Zhang

Dong-Wei Zhu

Doreen Catherine Lynch

G Marco Bommarito

Pingfan Peter Wu

Ilya Gorodisher

Charles A Marttila

James P Endle

Stephen P Maki

Brian J Gates

Dennis Earl Ferguson

Brian Kenneth Nelson

Mitchell A F Johnson

Travis L Potts

Guoping Mao

Franklyn L Frederickson

Tzu-Chen Lee

Craig R Sykora

Bradford B Wright

Jaime B Willoughby

Jeremy K Larsen

Przemyslaw Pawel Markowicz

Robert T Krasa

Jennifer J Sahlin

Dean Faklis

Jeremy M Yarwood

Michael J Svarovsky

Scott M Schnobrich

Olester Benson

Novel benzoxazine-thiol adducts are described, which may be may be cured to produce compositions useful in coating, sealants, adhesive and many other applications.

Benzoxazine-thiol adducts

Light guides comprising light extraction structure arrays and articles comprising such light guides are described.

Process for making light guides with extraction structures and light guides produced thereby

A process for making a microneedle array master comprises: (a) providing a photoreactive composition, the photoreactive composition comprising: (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microneedles. The microneedles may be solid and the outer surface of the microneedles may be characterized by at least one concave area. The master may be used to fabricate a tool for replication.

Process for making microneedles, microneedle arrays, masters, and replication tools

A method for forming a color shifting film on a support, the film comprising a reflective stack disposed adjacent to the support and an image is disclosed. The reflective stack comprises an at least partially transparent spacer layer comprising a substituted acrylamide polymer disposed between a partially reflective first layer and a reflective second layer. The acrylamide layer has a thickness sufficient to produce an interference color.

Interference films having acrylamide layer and method of making same

A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons/thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures. Each one of the array of light extraction structures has at least one shape factor; the shape factor may vary across the array. At least one light extraction structure may have the geometric configuration of a truncated asphere.

A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures.

This invention describes the preparation of some new Mannich polymers and copolymers and teaches their general use as photosensitizers for onium salts for use in the initiation of free radical polymerization of vinyl monomers. These Mannich polymers are unexpectedly more efficient as photosensitizers than are the non-polymeric photosensitizers.

Polymerizable compositions containing iodonium photoinitiators and

This invention describes the use of some Mannich bases as photosensitizers for iodonium salts for use in the initiation of free radical polymerization of vinyl monomers. These Mannich bases are unexpectedly more efficient as photosensitizers than are the conventional photosensitizers.

Photosensitizers and polymerizable compositions with mannich bases and

A polymerizable composition of polyurethane precursors is rapidly cured using energy-activated catalysts to provide polyurethanes. The polymerizable composition is comprised of polyisocyanates with polyols, fillers, coating aids, adjuvants, and a latent catalyst. Latent catalysts are ionic salts of organometallic complex cations. The cured polyurethanes are useful as abrasion resistant coatings, protective finishes such as furniture finishes and floor tiles, binders for magnetic media, adhesives, and have various applications in industries which use photoresist technologies such as graphic arts and electronics, and in the paint and ink industries.

Energy polymerizable polyurethane precursors

Growing community of inventors

Minneapolis, MN, United States of America

Robert J Devoe