The University of Texas System

Southwest Research Institute

Bisco Inc.

Biomedical Development Corporation

H Ralph Rawls

Kyumin Whang

Barry K Norling

Richard Plymale

Nasser Barghi

Dong-Hoon Shin

Stephen Thomas Wellinghoff

Benjamin R Furman

Paul M Thompson

Allen D Johnston

Yeong-Joon Park

Kyu-Ho Chae

Ming Fan

Nancy Girard

Grazyna Kaminska

Jerry W Nicholson

Embodiments of the invention are directed to dental compositions comprising: (1) at least one cationically reactive compound; (2) at least one cationic photoinitiator; (3) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive oxirane, oxetane, or alkenyl ether, (4) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate that is capable of forming an interpenetrating network; (5) at least one free radical initiator; and (6) at least one compound which is: an organic monomer, oligomer or polymer, said compound comprising at least one reactive acrylate or methacrylate and at least one oxirane, oxetane, or alkenyl ether.

Restorative resin compositions and methods of use

Methods of forming antimicrobial polymeric materials comprising metallic nanoparticles are disclosed. Such methods generally comprise: combining a metal-containing material with a resin in situ; and curing the resin in the presence of a metal-containing material. Antimicrobial polymeric materials formed by said methods are also disclosed.

Acrylic polymers containing metallic nanoparticles

Various embodiments of the present invention generally relate to a light-cure and dual-cure resin that have low color and is color stable over conventional light, self and dual-cured resins. Additionally, the light-cure resin has enhanced degree of cure over conventional light-cure resins. Finally, due to the low color and enhanced color stability of the dual-cure resins, their inherent property of having lower shrinkage stress as compared to light-cure resins can now be utilized in various dental applications and other resin applications.

Dual-cure dental resins and adhesives with increased cure and color-stability and low color

Dual-cure dental resins and adhesives with increased cure and color stability and low color

In situ formation of nanoparticles in resins

Nanocomposite compositions and methods of synthesis of the compositions are described. In particular, liquid crystal-functionalized nanoparticles, liquid crystal-templated nanoparticles, nanocomposite compositions including the nanoparticles, and composite compositions including the nanocomposites are detailed.

Nanocomposites and methods for synthesis and use thereof

A photoinitiator composition that includes (a) 1-aryl-2-alkyl-1,2-ethanedione and (b) a rigid 1,2-dione in a weight ratio of (a):(b) in a range of about 1:20 to about 20:1 is disclosed. The photoinitiator composition can be used in a photocurable dental composition in an amount sufficient to achieve a degree of double-bond conversion of at least 50%. Methods for making the photocurable dental composition are also disclosed.

Photosensitizers for free radical polymerization initiation resins and method of making the same

This invention relates to an improved polyvinylidene fluoride-based composition useful for forming a flexible, tack-free, nonflammable, substantially fluid resistant barrier film with substantially improved durability and skin-adhesion properties. The composition providing a long-lasting protective barrier film capable of disinfecting the skin surface of normally present microorganisms upon initial application, and said film imparting continuous and prolonged antimicrobial properties to the skin surface through sustained release of an encapsulated antimicrobial agent. The barrier film is further capable of remaining substantially adherent to the skin surface after prolonged exposure to biological fluids. A kit and methods of use for the composition are disclosed.

Composition useful for providing one-step surgical preparation and drape

The present invention involves a surface having a coating consisting essentially of a polymer that is soluble in or hydrolyzable by water. When the surface is immersed in an aqueous medium, the coating slowly dissipates such that biological fouling of the surface is prevented or inhibited. Substances adhering to the surface of the slowly dissipating polymer are removed as the polymer dissipates. This dissipation may result from slow hydrolysis of the polymer, particularly if the polymer is a polyester or polyanhydride. Preferred polyesters include polylactide and polyglycolide. Polymers soluble in water include polyvinyl alcohol and polyethylene glycol. Such solubility must be sufficiently slow such that the surfaces may be coated and the water-soluble polymer remains for a long period of time and is slowly dissipated into solution. Such dissipation from the surface removes adherent substances. The adherent substances may be bacteria, fungi, biomolecules or multicellular organisms. The surfaces treated include polyvinylchloride, other plastics, elastomers, metals or ceramics.

Modified surfaces resistant to bacterial colonization

A one-piece dental wedge comprised of a rigid core and an elastic outer component. Both the core and the outer component are comprised of biocompatible materials. The core may be comprised of a plastic, like a polymethyl methacrylate resin, wood, metal, or the like. The elastic outer component is comprised of an elastomer of either the gel or non-gel type.

Growing community of inventors

San Antonio, TX, United States of America

H Ralph Rawls