3m Innovative Properties Company

Coley Pharmaceutical Group, Inc.

William H Moser

Ahmed Salih Abuelyaman

Larry R Krepski

Guy D Joly

Ann R Fornof

Bradley Dene Craig

Afshin Falsafi

Joel D Oxman

Erik M Townsend

Philip D Heppner

Matthew R Radmer

Joan T Moseman

Serkan Yurt

Babu Nana Gaddam

Michael A Kropp

Tushar A Kshirsagar

David S Hays

Joseph F Dellaria, Jr

Shri Niwas

Ross E Behling

Michael E Danielson

John F Gerster

Jason D Clapper

Maureen Ann Kavanagh

Sarah A Strong

Kathleen S Shafer

Doris Stoermer

Ryan B Prince

Chuntao Cao

Jason D Bonk

Kyle J Lindstrom

Wayne Scott Mahoney

Sheng Ye

Yizhong Wang

Jonathan D Zook

Michael D Swan

David T Amos

Timothy D Dunbar

Mary M Caruso Dailey

Luke T Dressel

Bernhard M Zimmermann

Hoa T Bui

John R Jacobsen

Shantanu R Ranade

Daniel E Duffy

Amanda K Leone

Jayshree Seth

Bryon A Merrill

Hassan Sahouani

Joseph D Rule

Joachim Zech

Dennis Edward Vogel

Richard B Ross

Thu-Van T Tran

Eumi Pyun

Susan E DeMoss

Paul J Homnick

Sonja S Mackey

Gregory A Kobussen

Ying Lin

Zachary J Thompson

Gregory D Lundquist, Jr

Ian Dailey

Anthony R Plepys

Scott A Boyd

Kolby L White

Tianyu Wu

Andrew R Davis

Tabitha A Clem

Haohao Lin

Mark A Smith

Randilynn B Christensen

Brian S Lam

Clinton J Cook

Krishnamurthy Sridhar

Susan E Demoss

A curable composition comprises at least one monomer comprising at least one (meth)acryl group and a photoinitiator system. The photoinitiator system comprises at least one Type II photoinitiator and at least one cyclic β-diketone represented by the formula (I) or a tautomer thereof. Rrepresents an organic moiety having at least one free-radically polymerizable group. Each Rindependently represents H or an aliphatic group having from 1 to 12 carbon atoms, and up to two of oxygen and sulfur atoms, n represents 1, 2, or 3.

Curable compositions and methods of using the same

Curable compositions comprise at least one (meth)acrylate monomer; silver; and a photoinitiator system. The photoinitiator system comprises at least one cyclic β-diketone represented by the formula (I) or a tautomer thereof, wherein: Rrepresents H or an organic moiety having from 1 to 32 carbon atoms and optionally 1 to 12 heteroatoms selected from O, N, and combinations thereof; each Rindependently represents H or an aliphatic group having from 1 to 12 carbon atoms, and up to two of oxygen and sulfur atoms; and n represents 1, 2, or 3; and at least one Type II photoinitiator. Methods of making and using the compositions are also disclosed.

The present disclosure provides a redox initiator system for initiating polymerization comprising an oxidizing agent, a photolabile reducing agent derived from a barbiturate, and a transition metal complex that participates in a redox cycle. On exposure to actinic radiation, such as UV, the photolabile compound photolyzes, releasing the reducing agent and initiating the redox-initiated polymerization.

Photolabile barbiturate compounds

Disclosed herein are non-aqueous compositions including: a flowable Part A including at least one resin and Reactant A; and a flowable Part B including at least one resin and Reactant B; wherein at least one of flowable Part A and flowable Part B further includes a free radically polymerizable resin; wherein at least one of flowable Part A and flowable Part B further includes a free radical initiator system; wherein flowable Part A and flowable Part B are capable of being mixed to provide a flowable mixed composition; wherein when flowable Part A and flowable Part B are mixed, Reactant A and Reactant B are capable of interacting to cause a non-free radical reaction within a first staging time to provide a first staged stable consistency for the mixed composition; wherein Reactant A comprises an acid and Reactant B comprises a base, and upon mixing flowable Part A and flowable Part B, the Reactant A acid is capable of reacting with the Reactant B base in an ionic acid-base reaction; and wherein the mixed composition having the first staged stable consistency is capable of forming a hardened dental composition upon initiation of free radical polymerization.

Multi-part dental composition having staged viscosity prior to hardening

An adhesive article comprising first and second tacky latent adhesive layers disposed on respective first and second opposed major surfaces of a substrate. Each of the first and second tacky latent adhesive layers independently comprises at least one polymerizable component, and a redox initiator system comprising a transition metal complex that participates in a redox cycle, an oxidizing agent, and a blocked reducing agent represented by the formula ((I). Each of Rand Rare independently H, an alkyl, an aryl, or RPhoto5 with the proviso that at least one of R1 and Ris RPhoto. Rrepresents a photoremovable group. Each of Rand Rindependently represents H, an alkyl group, or an aryl group comprising a monovalent ester, ether, urethane, or carbonate group. Methods of making and using the adhesive articles are also disclosed. 

Adhesive article and methods of making and using the same

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

A composition including a polythiol having more than one thiol groups, a polyepoxide having more than one epoxide group, a photolatent base catalyst that can photochemically generate a first amine, and a second amine phase-separated within the composition. A polymer network preparable from the composition, and a method for making the polymer network are also disclosed.

Composition including a polythiol, a polyepoxide, a photolatent base, and an amine and methods relating to the composition

A dual curable thiol-ene composition comprising a polythiol, an unsaturated compound, a photoinitiator, an organic hydroperoxide (thermal initiator) and optionally a nitrogen-containing base, such as e.g. an N-heterocyclic compound (together with the organic hydroperoxide a redox initiator system). A cross-linked polymer prepared therefrom. A method of making such a polymer. A cured sealant comprising such a polymer. The sealant is preferably for use in aerospace.

Dual curable thiol-ene composition, comprising a polythiol, an unsaturated compound, a photoinitiator and an organic hydroperoxide, as well as a cross-linked polymer sealant prepared therefrom for use in aerospace

Provided are dual cure monomer are of the formula: (I) wherein R* is a (hetero)hydrocarbyl group; Xis &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;NR, &#x2014;CO&#x2014;NR&#x2014; or NR&#x2014;CO&#x2014;, where Ris H, C-Calkyl or R-Epoxy; Ris a divalent (hetero)hydrocarbyl group; Xis &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014; where Ris H, C-Calkyl or R&#x2014;CH&#x2550;CH; Ris a divalent (hetero)hydrocarbyl group; subscripts a and b are at least one, subscripts c and d are at least one, with the proviso that the monomer has at least two epoxy groups and at least two ene groups. 

Dual cure monomers

Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiators comprises a photolabile reducing agent, that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

Redox polymerizable composition with photolabile reducing agents

Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

Redox polymerizable composition with photolabile transition metal complexes

Polymerizable dental compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle.

Redox polymerizable dental composition with photolabile transition metal complexes

A halogen-free flame retardant adhesive comprises an acrylic copolymer preparable by polymerization of monomers comprising a first monomer which comprises a low glass transition temperature (Tg) monomer, a second monomer which comprises a high Tg monomer, wherein at least one of the first and second monomers comprises a (meth)acrylate, and a phosphinate containing monomer.

Halogen-free flame retardant pressure sensitive adhesive and tape

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

Growing community of inventors

Edina, MN, United States of America

William H Moser