3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Other

3m Innovative Properties

Larry R Krepski

Steven M Heilmann

Jerald K Rasmussen

Babu Nana Gaddam

Kevin Michael Lewandowski

Joel D Oxman

Guy D Joly

Ahmed Salih Abuelyaman

William H Moser

Dean M Moren

Bradley Dene Craig

Alan Roy Katritzky

Yizhong Wang

Sharon Mary Simpson

Jason D Clapper

Dean S Milbrath

Thomas P Klun

Duane Douglas Fansler

Michael S Wendland

Kumars Sakizadeh

Joseph F Dellaria, Jr

Stephen B Roscoe

Wayne Scott Mahoney

Kim Marie Vogel

David B Olson

Terrance P Smith

Hae-Seung Harry Lee

Joseph D Rule

David R Whitcomb

Bryan V Hunt

Diane R Wolk

George W Griesgraber

Brant Ulrick Kolb

Stephen A Johnson

John F Gerster

Scott R Culler

Caroline M Ylitalo

Mario Alberto Perez

Philip D Heppner

Michael A Kropp

Ann R Fornof

Peiwang Zhu

Maureen Ann Kavanagh

Serkan Yurt

Afshin Falsafi

Marie Aloshyna Ep Lesuffleur

Patrick L Coleman

Arlin Lee Weikel

Brian N Holmes

Timothy D Filiatrault

Belma Erdogan-Haug

David T Amos

Kelly S Anderson

Stefan A Babirad

Prabhakara Satyauolu Rao

Matthew R Radmer

Cecil V Francis

Jingjing Ma

Wayne K Larson

Timothy D Dunbar

Kathleen S Shafer

Richard L Severance

Chuntao Cao

Richard J Kuo

Joan T Moseman

Raffaella Biavasco

Tushar A Kshirsagar

Steven S Kantner

Dong-Wei Zhu

Donald F Hagen

Paul E Hansen

Douglas Eugene Weiss

Gaddam N Babu

Mark D Purgett

Yi He

Ross E Behling

James P DiZio

Smarajit Mitra

Terry R Hobbs

Raymond J Kenney

Paul D Graham

Mark F Ellis

Jay M Jennen

Joon Chatterjee

Gregory J Marszalek

Christopher J Campbell

John M Sebastian

Yifan Zhang

David S Arney

Don H Kincaid

Zhong Chen

Christopher K Haas

Robert Steven Kody

Sanat Mohanty

Mary M Caruso Dailey

Richard E Bennett

Scott E Langer

Bernhard M Zimmermann

Richard A Mallo

Kenneth D Wilson

Novel stress-reducing crosslinking oligomers that have application in dental restoratives, thin films, hardcoats, composites, adhesives, and other uses subject to stress reduction are described. The addition-fragmentation process of crosslinking results in a chain-transfer event that provides novel polymers that may be further functionalized. In addition, the addition-fragmentation oligomer comprises pendent functional groups that bond to a substrate by forming an ionic or covalent bond, or etch the substrate by chemically removing some material from the substrate.

Addition-fragmentation oligomers

Addition-fragmentation agents of the formula are disclosed: whereinR, Rand Rare each independently Z-Q-, a (hetero)alkyl group or a (hetero)aryl group with the proviso that at least one of R, Rand Ris Z-Q-,Q is a linking group have a valence of m+1;Z is an ethylenically unsaturated polymerizable group,m is 1 to 6;each Xis independently &#x2014;O&#x2014; or &#x2014;NR&#x2014;, where Ris H or C-Calkyl, andn is 0 or 1.

Addition-fragmentation agents

Addition-fragmentation agents having the following functional groups: 1) a labile addition-fragmentation group that can cleave and reform to relieve strain, 2) at least one high refractive index group, and 3) at least one ethylenically unsaturated, polymerizable group are described.

High refractive index addition-fragmentation agents

A curable dental composition comprising an addition-fragmentation agent and a curable dental resin is disclosed.

Dental compositions comprising addition-fragmentation agents

The disclosure describes a curable composition comprising a first oligomer having a plurality of polymerizable groups; a second component comprising alkylene oxide repeat units and terminal polymerizable groups, a solvent monomer component; and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Liquid optical adhesive compositions

Imidazo ring systems substituted at the 1-position, pharmaceutical compositions containing the compounds, intermediates, methods of making the compounds, and methods of use of these compounds as immunomodulators, for inducing cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.

Substituted imidazo ring systems and methods

A Addition-fragmentation oligomers containing allylic disulfide groups are described. The oligomers may be added to polymerizable compositions to provide labile crosslinks that can cleave and reform during the polymerization process.

Allyl disulfide-containing addition-fragmentation oligomers

A pre-adhesive composition is described comprising an acid- and epoxy-functional (meth)acryloyl copolymer, which when crosslinked with or without using an ionic photoacid generator (PAG) provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles having desirable properties.

Pressure-sensitive adhesives with onium-epoxy crosslinking system

Provided are novel high refractive index monomers, and dental resins containing the same.

Dental composition containing high refractive index monomers

The present disclosure provides addition-fragmentation oligomers of the general formula: The crosslinking oligomers of this disclosure provide stress relief by including labile crosslinks that can cleave and reform during the polymerization process. 

Trithiocarbonate-containing addition-fragmentation agents

Addition-fragmentation oligomers of the general formula Z&#x2014;B-A-(B-A)-B-A-B&#x2014;Z, where the A monomers units are derived from a diester or diacid, the B monomer units are derived from a difunctional monomer having functional groups co-reactive and at least one of the A or B monomers comprise a 1-methylene-3,3-dimethylpropyl group.

A multifunctional polymerizable ionic liquid is described comprising an anion and a cationic group having at least two ethylenically unsaturated polymerizable groups, each bonded to the cationic group via a divalent non-alkyl linking group. The multifunctional linking groups independently comprise a heteroatom such as oxygen or nitrogen. The linking groups may independently comprise one or more linkages such as an amide, urea, and more typically a urethane or ester linkage. The ethylenically unsaturated polymerizable groups are typically (meth)acrylate groups. Coatings and coated articles are also described.

Polymerizable ionic liquid comprising multifunctional cation and antistatic coatings

Adhesives compositions and methods of preparing adhesive compositions are described. The methods generally comprise a) providing a syrup composition comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic copolymer; and b) radiation curing the syrup composition in the absence of an ionic photoacid generator. In one embodiment, the solute (meth)acrylic copolymer as provided or during curing comprises repeat units derived from at least one alkyl(meth)acrylate monomer, at least one ethylenically unsaturated monomer comprising an acid-functional group; and at least one (meth)acryloyl monomer comprising an epoxy-functional group; and the acid-functional groups crosslink with the epoxy-functional groups. In another embodiment, the solute (meth)acrylic copolymer comprising repeat units derived from at least one alkyl(meth)acrylate monomer and at least one ethylenically unsaturated monomer comprising an acid-functional group; and an epoxy resin, having on average greater than one polymerizable epoxy group per molecule, crosslinks the acid-functional groups.

Adhesives comprising epoxy-acid crosslinked groups and methods

Growing community of inventors

White Bear Lake, MN, United States of America

Larry R Krepski