Dentsply Sirona Inc.

Dentsply International Inc.

Rhodia Operations

Rhodia Limited

Bernard Koltisko

Xiaoming Jin

Derek Pakenham

Jose P Ruiz

Lichang Zhou

Charles Aymes

Pu Chen

Keri Veres

Joachim E Klee

Hui Lu

Daniel M Ammon, Jr

Paul D Hammesfahr

Kevin L Wilkinson

Todd Patrick Berger

Adam Barantz

Jose Ruiz

Louis Bertrand

Qizhou Dai

Michael T O'Connor

Dan Ammon

Mike O'connor

Jin Xiaoming

Mike O'CONNOR

Keri Marie Veres

A method of forming a dental composite includes photopolymerizing a dental composition. The dental composition includes a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical. The photopolymerizing forms the dental composite such that the dental composite has a flexural modulus of about 9500 MPa or greater and the polymerizable stable radical reduces shrinkage stress of the dental composite caused by the photopolymerizing by 10% or greater. A method of forming a dental composite composition includes combining a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical to form the dental composite composition.

Methods of forming dental composites and compositions for reduced shrinkage stress

The present invention is directed to a dental composition, and specifically to an improved composition for endodontic instruments useful for filling root canals or sealing.

Compositions for endodontic instruments

A dental composite composition is disclosed that includes a polymerizable resin, filler particles, and at least one polymerizable stable radical. A variety of polymerizable stable radicals may be employed, including those that have a 2,2,6,6-tetramethylpiperidinyl-1-oxyl moiety. Compositions as described herein exhibit excellent mechanical strength, hardness, and flexural modulus, while also significantly decreasing shrinkage stress caused by polymerization.

Dental composite compositions for reduced shrinkage stress

Disclosed herein are polymerizable dental materials and dental products based upon such materials. More particularly, disclosed are materials and products based upon BPA-free, polymerizable resins that are derived from 1,4:3,6-dianhydro-glucidol (isosorbide).

Dental compositions based on polymerizable resins containing isosorbide

Disclosed herein are low viscosity and low stress dental compositions comprising at least one low stress polymerizable resin and at least one filler. The dental compositions described herein have high depth of cure and self-leveling characteristics and are capable of bulk application.

Low stress flowable dental composition

Dental compositions and dental products having a resin derived from a cyclic diol such as 2,2,4,4-tetramethyl-1,3-cyclobutanediol.

Dental materials using 2,2,4,4-tetramethyl-1,3-cyclobutanediol

A coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of dibasic esters, specifically (i) esters of adipic, glutaric, and/or succinic diacids and/or (ii) esters of isomers of adipic acid have advantages, including efficiency and low VOC.

Low VOC coalescing agents

A coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of diesters, the blend comprising adducts of alcohol and diacids, the alcohol selected from the group consisting of ethyl, propyl, isopropyl alcohol and mixtures thereof, and the diacids selected from the group consisting of a blend of adipic, glutaric and succinic diacids ('AGS') and a blend of adipic, methylglutaric, and ethylsuccinic diacids ('MGA'), and paint, adhesive, and coating compositions comprising such coalescent compositions are disclosed.

Efficient coalescing agents

Growing community of inventors

Milton, DE, United States of America

Bernard Koltisko