3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Solventum Intellectual Properties Company

Other

3m Innovatives Properties

Richard John Pokorny

Thomas P Klun

Marc Dudley Radcliffe

Christopher Bland Walker, Jr

Steven D Solomonson

Mark J Pellerite

David B Olson

William D Coggio

Saswata Chakraborty

Naiyong Jing

Zai-Ming Qiu

Catherine A Leatherdale

Raghunath Padiyath

David Scott Thompson

Peter D Condo

Robert S Moshrefzadeh

Lan Hong Liu

John James Stradinger

Philip Edwin Watson

Robert Steven Clough

Gregg A Ambur

Yongshang Lu

Joan M Noyola

Michelle Lund Toy

Ahmed Salih Abuelyaman

Terence D Spawn

Zeba Parkar

Douglas Scott Dunn

Michael A Johnson

Joseph D Rule

Suresh Iyer

Eric Wayne Nelson

Jung-Sheng Wu

Encai Hao

Robert J Fleming

Mahfuza B Ali

Ying-Yuh Lu

Jeffrey C Chang

Ta-Hua Yu

Hsin-hsin Chou

Evan L Schwartz

Jie Yang

Robert F Kamrath

Yaoqi Joe Liu

Patrick A Thomas

Karl J L Geisler

Paul C Kelley

George W Griesgraber

William Blake Kolb

Timothy L Wong

Fred Boyle McCormick

Daniel J Skamser

Wayne Scott Mahoney

James D Hansen

Robert A Yapel

Kevin R Schaffer

Mark A Roehrig

Daniel J Schmidt

John C Nelson

John S Staral

Leland Ray Whitney

Robert M Emmons

Jo Anne Etter

Prabhakara Satyauolu Rao

Paul B Armstrong

Alan K Nachtigal

Kazuhiko Mizuno

Joseph C Spagnola

William J Hunt

James D Groves

Bettie C Fong

John Allen Wheatley

Michael F Weber

Moses Mekala David

George G I Moore

Shandon Dee Hart

Brant Ulrick Kolb

Mikhail L Pekurovsky

Adam D Haag

Michael A Kropp

Sheng Ye

Bradley Dene Craig

Charles L Bruzzone

John P Baetzold

Jun-Ying Zhang

Laurent Froissard

Dong-Wei Zhu

Bryan V Hunt

Roger A Mader

Derek J Dehn

Mark B O'Neill

D Scott Thompson

Thomas J Ludemann

Carsten Franke

Kara A Meyers

Timothy D Dunbar

William F Edmonds

Taun L McKenzie

Anthony M Renstrom

Jeffrey A Peterson

Polymerizable compositions suitable for use for 3D printed (e.g. orthodontic) articles, especially orthodontic alignment trays, are described. The polymerizable composition comprises a) 30-70 parts by weight of (meth)acrylate monomer(s); and b) urethane (meth)acrylate polymer; wherein the reaction product comprises at least 1 wt. % polymerized units of a multifunctional compound comprising pendent cyclic moieties. The orthodontic article comprises the reaction product of a polymerizable composition as described herein. The urethane (meth)acrylate polymer typically comprises polymerized units of a multifunctional compound comprising pendent cyclic moieties and/or at least one (meth)acrylate monomer comprises polymerized units of a multifunctional compound comprising pendent cyclic moieties. Also described are methods of making an article, non-transitory machine-readable medium comprising data representing a three-dimensional model of an article, and systems.

Orthodontic articles comprising polymerized composition with pendent cyclic moieties, methods, and polymerizable compositions

A display film includes a transparent cross-linked polyurethane acrylate layer. The transparent cross-linked polyurethane acrylate layer having a glass transition temperature of 10 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater.

Polyurethane acrylate protective display film

The present disclosure provides an orthodontic article including the reaction product of the polymerizable composition. Further, the present disclosure provides polymerizable compositions and methods of making an orthodontic article. The method includes obtaining a polymerizable composition and selectively curing the polymerizable composition to form an orthodontic article. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an orthodontic article; and generating, with the manufacturing device by an additive manufacturing process, the orthodontic article based on the digital object. A system is also provided, including a display that displays a 3D model of an orthodontic article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an orthodontic article.

Orthodontic articles prepared using a polycarbonate diol, polymerizable compositions, and methods of making the articles

An optical assembly () including an encapsulated multilayer optical film (). Methods of making and using such optical assemblies also are disclosed.

Optical assembly with encapsulated multilayer optical film and methods of making same

A nanostructured article includes a substrate; a plurality of first nanostructures disposed on, and extending away from, the substrate; and a covalently crosslinked fluorinated polymeric layer disposed on the plurality of first nanostructures. The plurality of first nanostructures includes polyurethane. The polymeric layer at least partially fills spaces between the first nanostructures to an average minimum height above the substrate of at least 30 nm such that the polymeric layer has a nanostructured surface defined by, and facing away from, the plurality of first nanostructures.

Nanostructured article

A method of making a shaped abrasion-resistant multilayer optical film includes providing a curable composition comprising, based on the total weight of components a) to d) components: a) 87 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 4.8; b) 2 to 12.5 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2, wherein the (meth)acrylate monomer does not comprise a urethane (meth)acrylate compound; optionally c) 0.5 to 2 weight percent of silicone (meth)acrylate; and d) optional effective amount of photoinitiator. The curable composition is coated onto an MOF. Optionally, the curable composition to is at least partially dried. Next, the curable composition or the at least partially dried curable composition is at least partially cured to provide an abrasion-resistant multilayer optical film. Lastly, the abrasion-resistant multilayer optical film is thermoformed using a female mold having a mold surface. At least a portion of the mold surface has a radius of curvature of 58 to 76 mm and a maximum depth of 13 to 20 mm.

Thermoformed abrasion-resistant multilayer optical film and method of making the same

An orthodontic article is described comprising the reaction product of a free-radically polymerizable resin; a first free-radical photoinitiator having sufficient absorbance at a first wavelength range; and a second free-radical initiator selected from a second photoinitiator having sufficient absorbance at a second wavelength range, wherein the second wavelength range is different than the first wavelength range, or a thermal free-radical initiator. In some embodiments, the first free-radical photoinitiator exhibits a maximum absorbance at a wavelength of the range of 370-380 nm or 320-330 nm and/or comprises photoinitiator groups selected from acyl phosphine oxide or alkyl amine acetophenone. Also described are photopolymerizable compositions and methods.

Orthodontic articles comprising polymerized composition comprising at least two free-radical initiators

A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of semi-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm, and a second population of reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm.

Flexible hardcoat

A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of semi-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm, and a second population of non-reactive nanoparticles having an average particle diameter in a range from 5 nm to 60 nm.

A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a population of semi-reactive nanoparticles dispersed within the one or more multifunctional (meth)acrylate monomers. The population of semi-reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm.

A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of reactive nanoparticles. The first population of reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm, and a second population of non-reactive nanoparticles. The second population of non-reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm.

An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element. The optical film includes a protective coating having an average thickness of no more than 30 micrometers. The protective coating includes an at least partially cured composition. The composition includes 70 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 9.5, and 2 to 20 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2.

Optical assembly with protective coating

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g/mol or greater. The present disclosure further provides an article and methods thereof.

Photopolymerizable compositions including a polyurethane methacrylate polymer prepared using a polycarbonate diol, articles, and methods

An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element.

Optical assembly

Growing community of inventors

Maplewood, MN, United States of America

Richard John Pokorny