3m Innovative Properties Company

Solventum Intellectual Properties Company

Timothy D Dunbar

Mark J Pellerite

Bradley Dene Craig

Larry D Boardman

Tommie W Kelley

Ahmed Salih Abuelyaman

Terrance P Smith

Dawn V Muyres

Todd D Jones

Adrian S Eckert

Christoph H Thalacker

Chuntao Cao

Gregory A Kobussen

Babu Nana Gaddam

Joel D Oxman

Larry R Krepski

Guy D Joly

William H Moser

Karsten Dede

Afshin Falsafi

Paul J Homnick

Hoa T Bui

Henry Loll

Matthew H Frey

Richard John Pokorny

Sumita Basu Mitra

Marc Peuker

Miguel Antonio Guerra

George G Moore

Michael A Kropp

Sheng Ye

James D Hansen

Dennis Edward Vogel

Kim Marie Vogel

Dong-Wei Zhu

Carsten Franke

Stephen W Stein

Zeba Parkar

Matthew J Kryger

Tianyu Wu

Ying Lin

Lawrence A Zazzera

Adam D Miller

Cheryl L Elsbernd

Michael W Mueting

Andreas J Boehm

Bernd Anich

The invention relates to a dental product comprising a packaging device comprising a compartment with a front end and a rear end, an inner surface and an inner diameter, a layer of lubricant composition on the inner surface of the compartment, a dental material located in the compartment between the front end and the rear end, the lubricant composition comprising a monomer ML with an ethylenically unsaturated group, and filler FL in an amount of 0 to 65 wt. % with respect to the weight of the lubricant composition, the dental material being different with respect to its chemical composition from the lubricant composition.

Dental product with reduced extrusion forces

Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nanoparticles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.

Dental compositions comprising nanoparticles providing a refractive index differential between polymerizable resin and filler

A radiation curable composition including at least one radiation hardenable component, a photo-initiator, and a filler material having a population of particulates in an amount greater than or equal to 50% by weight of the printable composition. The population of particulates exhibits a median diameter (D50) of greater than or equal to 0.3 micrometer on a volume-average basis as determined using the Particle Size Test Method, and the radiation curable composition exhibits a viscosity of less than or equal to 150 Pa s when measured using the Viscosity Test Method. A method, apparatus, and systems for producing composite articles by selectively exposing a portion of the radiation curable composition to a source of actinic radiation to at least partially cure the exposed portion of the radiation curable composition, thereby forming a hardened layer, preferably by an additive manufacturing process such as stereophotolithography, are also described. The composite articles may include composite dental restorations.

Radiation curable compositions and composite articles made using an additive manufacturing process

A curable composition that includes a urethane multifunctional (meth)acrylate, an inorganic filler having a primary particle dimension of at least 200 nm, a photoinitiator system that can be activated by electromagnetic radiation in the range of 340-550 nm, a reactive diluent, and a reinforcing silica having a primary particle dimension of 100 nm of less. The sum of the absolute value of the difference in the refractive index of the filler and the refractive index of the composition cured without filler plus the birefringence of the filler is 0.054 or less, i.e. 0.054&#x2265;|n&#x2212;n|+&#x3b4;, where nis the refractive index of the filler, nis the refractive index of the composition cured without filler, and &#x3b4;is the birefringence of the filler.

Light curable compositions

Dental compositions and methods of formulating a dental composition are described. In one embodiment, the dental composition comprises a polymerizable resin comprising one or more ethylenically unsaturated monomers or oligomers and nano-particles. The nanoparticles have a refractive index of at least 1.600 and an average discrete or aggregate particle size of no greater than 100 nm. The dental composition further comprises inorganic metal oxide filler having a discrete or aggregate average particle size of at least 200 nm. The nanoparticles are present at a concentration to provide a refractive index differential between the cured polymerizable resin and inorganic metal oxide filler such that the contrast ratio of the dental composition is at least 40.

The invention relates to a curable composition for dental use comprising polyoxymetalates and/or derivatives thereof in an amount of at least about 5 wt.-% with respect to the weight of the composition.

Dental composition containing polyoxometalates, process of production and use thereof

Dental compositions are described comprising an addition-fragmentation agent of the formula:  Also described are dental articles prepared from a dental composition comprising an addition-fragmentation agent and methods of treating a tooth surface.

Dental compositions comprising ethylenically unsaturated addition-fragmentation agent

Powder drug compositions exhibiting improved flow properties are manufactured by spraying a suspension of surface-modified nanoparticles having an average particle size diameter of less than 100 nm in a dryable liquid carrier onto particles of a powder ingredient of a drug composition. The liquid carrier is rapidly dried so as to leave the nanoparticles on the powder. Other ingredients of the powder drug composition can also be added.

Process for manufacturing flowable powder drug compositions

Dental compositions are described comprising an addition-fragmentation agent comprising at least one ethylenically unsaturated terminal group and a backbone unit comprising an &#x3b1;,&#x3b2;-unsaturated carbonyl; at least one monomer comprising at least two ethylenically unsaturated group; and inorganic oxide filler. The addition-fragmentation agent is preferably free-radically cleavable. The addition-fragmentation agent preferably comprises at least two ethylenically unsaturated terminal groups, such as (meth)acTylate groups. In some embodiments, the addition-fragmentation agent has the formula: wherein R, 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 X1 is independently &#x2014;O&#x2014; or &#x2014;NR&#x2014;, where Ris H or C-Calkyl; and n is 0 or 1. Also described are dental articles prepared from a dental composition comprising an addition-fragmentation agent and methods of treating a tooth surface. 

Hardenable compositions are described comprising at least one multifunctional ethylenically unsaturated isocyanurate monomer and at least one multifunctional ethylenically unsaturated tricyclodecane monomer. In favored embodiments, the compositions further comprise filler and are suitable dental restorations.

Dental compositions comprising mixture of isocyanurate monomer and tricyclodecane monomer

A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a lactate or thiolactate anion, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) lactic or thiolactic acid, a lactate or thiolactate salt of a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.

Process for producing nanoparticles

A composition comprises surface-modified nanoparticles of at least one amphoteric metal oxide or oxyhydroxide. The nanoparticles bear, on at least a portion of their surfaces, a surface modification comprising (i) at least one surface modifier selected from lactate, thiolactate, and mixtures thereof, and (ii) at least one surface modifier selected from halide, nitrate, acetate, carbonate, formate, propionate, sulfate, bromate, perchlorate, tribromoacetate, trichloroacetate, trifluoroacetate, carboxylate comprising from one to about four alkyleneoxy moieties, chlorate, and mixtures thereof.

Mixed ligand surface-modified nanoparticles

A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a carboxylate anion comprising from one to four alkyleneoxy moieties, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) at least one carboxylic acid comprising from one to four alkyleneoxy moieties, at least one salt of the carboxylic acid and a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.

A method of making a thin film transistor comprises (a) solution depositing a dispersion comprising semiconducting metal oxide nanoparticles onto a substrate, (b) sintering the nanoparticles to form a semiconductor layer, and (c) optionally subjecting the resulting semiconductor layer to post-deposition processing.

Method for making electronic devices using metal oxide nanoparticles

A method of making an electronic device by (a) depositing a substantially nonfluorinated polymeric layer onto a dielectric layer using a plasma-based deposition technique selected from the group consisting of (i) plasma polymerizing a precursor comprising monomers, and (ii) sputtering from a target comprising one or more polymers of interpolymerized units of monomers, the monomers being selected from the group consisting of aromatic monomers, substantially hydrocarbon monomers, and combinations thereof; and (b) depositing an organic semiconductor layer adjacent to said polymeric layer.

Method for making electronic devices having a dielectric layer surface treatment

Growing community of inventors

Woodbury, MN, United States of America

Timothy D Dunbar