Cabot Corporation

Superior Micropowders LLC

3m Innovative Properties Company

Solventum Intellectual Properties Company

The Penn State Research Foundation

Solventum Intellectual Properties

Daniel J Skamser

Mark J Hampden-Smith

Toivo T Kodas

Quint H Powell

James F Caruso

Clive D Chandler

Klaus Kunze

Thomas P Klun

John M Riedesel

Richard John Pokorny

Ahmed Salih Abuelyaman

James D Hansen

Saswata Chakraborty

Chad M Amb

George W Griesgraber

Wayne Scott Mahoney

Robert Steven Clough

Ian Dailey

Dana R Reed

Paolina Atanassova

Eric Wayne Nelson

Paul Napolitano

Karl J L Geisler

Clive A Randall

Michael Randall

James H Brewster

Azizuddin Tajuddin

Tianyu Wu

Pascal I Pinceloup

Benjamin C MacMurray

Susan Trolier McKinstry

David K Cinader, Jr

Hajime Nagata

Mitchell A Hirsch

Richard E Raby

Michael K Domroese

Yongshang Lu

Richard Yufeng Liu

Steven H Kong

Carsten Franke

Zeba Parkar

Bhaskar V Velamakanni

Jeremy A Schmoll

Przemyslaw Pawel Markowicz

Lyudmila A Pekurovsky

Anja Friedrich

Nathaniel I Lehn

Steven Hin-Chung Kong

James J Beeson

Joseph R Dufour

James J Baeson

Benjamin C Mac Murray

Ahmed Abuelyaman

Eric W Nelson

Benjamin C Macmurray

David K Cinader Jr

Jr David K Cinader

Orthodontic articles and polymerizable resin compositions are described. The orthodontic article comprises a cured composition comprising the reaction product of free-radically polymerizable resin comprising 30 to 70 wt. %, inclusive, of at least one urethane component, and 25 to 70 wt. %, inclusive, of reactive diluent(s) comprising at least one monofunctional (meth)acrylate monomer. The polymerizable resin comprises no greater than 35 wt. % of reactive diluent(s) having a high affinity for water. Reactive diluent(s) such as monofunctional (meth)acrylate monomers having a high affinity for water have low log P values. In one embodiment, the polymerizable resin comprises at least one acidic monomer.

Orthodontic articles comprising cured free-radically polymerizable composition with improved strength in aqueous environment

A dental appliance for positioning a patient's teeth includes a polymeric shell with a plurality of cavities for receiving one or more teeth. The polymeric shell includes at least 3 alternating polymeric layers AB, wherein layer A includes a thermoplastic polymer A, layer B includes a thermoplastic polymer B, and the thermoplastic polymer B is different from the thermoplastic polymer A. Each of the thermoplastic polymers A and B have a flexural modulus of about 1.0 GPa to about 4.0 GPa; and each of the thermoplastic polymers A and B have a glass transition temperature (T) greater than about 40° C.

Multi-layered dental appliance

Trays for indirect bonding orthodontic appliances to a patient's teeth and methods of bonding orthodontic appliances to patient's teeth, using a custom patient-specific mold body that optimizes the placement of the orthodontic appliances on the patient's teeth. Method of designing such trays for indirect bonding orthodontic appliances are also included.

Indirect bonding tray for bonding orthodontic appliances and methods of making and using the same

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

The present disclosure describes articles, systems, and techniques including an additive manufactured orthodontic attachment including a body defining a retaining member configured to retain the article in a recess defined by a shell of a transfer tray; a coupling portion configured to engage a tool for insertion of the attachment into the recess of the transfer tray; and a bonding surface configured to bond the attachment to a portion of an outer surface of a tooth of a patient.

Preformed orthodontic aligner attachments

The present disclosure provides a method of making an orthodontic article. The method includes (a) providing a photopolymerizable composition; (b) selectively curing the photopolymerizable composition using actinic radiation to form an article in the shape of an orthodontic article including a number of layers of at least one photopolymerized polymer; and (c) moving the article and thereby generating a mass inertial force in the uncured photopolymerizable composition. The article has a first surface, and no more than 75% of the first surface has a slope magnitude greater than 2.5 degrees. Orthodontic articles are also provided, including an orthodontic article that is prepared according to the method. Orthodontic articles having low extractable component content are further provided. The mass inertial force tends to form a coating layer of uncured photopolymerizable composition on the article, and curing the coating layer can form a surface having low slope magnitude. The low slope magnitude may be correlated to a low haze of the surface of the article.

Orthodontic articles and methods of making and postprocessing 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

The present disclosure provides a method for building a three-dimensional object using a printable composition including high viscosity polymerizable components. The method includes the steps of a) providing a printable composition comprising a high viscosity polymerizable component and a temporary solvent; b) selectively curing the printable composition to form an article representing the shape of the three-dimensional object; and c) removing a substantial amount of the temporary solvent from the article. The method is particularly well suited to making an orthodontic clear tray aligner. Also disclosed are a variety of printable compositions including high viscosity polymerizable components, such as polyurethane methacrylates, and temporary solvents.

Printable compositions including highly viscous components and methods of creating 3D articles therefrom

The present disclosure provides a photopolymerizable composition comprising 50-90 wt % of at least one urethane component, 5-50 wt % of at least one reactive diluent, 0.1-5 wt % of a photoinitiator, and optionally an inhibitor, wherein said composition has a viscosity at a temperature of 40 degrees Celsius of 10 Pa&#xb7;s or less, as determined using a magnetic bearing rheometer using a 40 mm cone and plate measuring system at a shear rate of 0.1 l/s. The present disclosure also provides an article including the reaction product of the photopolymerizable composition, in which the article exhibits an elongation at break of 25% or greater. Further, the present disclosure provides a method of making an article including (i) providing a photopolymerizable composition and (ii) selectively curing the photopolymerizable composition to form an article. The method optionally also includes (iii) curing unpolymerized urethane component and/or reactive diluent remaining after step (ii). Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an 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 article.

Photopolymerizable compositions including a urethane component and a reactive diluent, articles, and methods

The present disclosure provides engineered surfaces that exhibit reduced specular reflection and gloss while still providing a high intensity of reflected light at multiple incident angles. The structured metal surfaces include engineered topography that increases diffuse reflection, leading to a greater intensity of light perceived at multiple viewing angles. A viewer engaging such surfaces is likely to perceive a stronger 'white' reflection of the incident light and an improvement, particularly in orthodontic and other oral applications, of aesthetic appearance. Methods of creating the engineered surfaces and orthodontic articles incorporating the engineered surfaces are also disclosed.

Methods for managing the scattering of incident light and articles created therefrom

The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 &#x3bc;&#x3bc;m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.

Microcontact printed thin film capacitors

The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiOmultilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiOdielectric layers and LaNiOinternal electrodes are prepared, enabling dielectric layer thicknesses of 1 &#x3bc;m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.

Provided is an aerosol method, and accompanying apparatus, for preparing powdered products of a variety of materials involving the use of an ultrasonic aerosol generator including a plurality of ultrasonic transducers underlying and ultrasonically energizing a reservoir of liquid feed which forms droplets of the aerosol. Carrier gas is delivered to different portions of the reservoir by a plurality of gas delivery ports delivering gas from a gas delivery system. The aerosol is pyrolyzed to form particles, which are then cooled and collected. The invention also provides powders made by the method and devices made using the powders.

Forming conductive features of electronic devices

Nickel powder batches and methods for producing nickel powder batches. The powder batches include particles having a small particle size, narrow size distribution and a spherical morphology. The present invention is also directed to devices incorporating the nickel metal powders.

Coated nickel-containing powders

Growing community of inventors

Albuquerque, NM, United States of America

Daniel J Skamser