Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Other

Mark S Konings

Joel D Oxman

George V Tiers

Dennis Edward Vogel

Kim Marie Vogel

Edward J Winters

Rolf W Biernath

Richard Paul Rusin

Afshin Falsafi

Robert S Reylek

Jeff P Tane

The inventive dental composition comprises (a) a part A comprising at least one polyacid and at least one polymerizable component; and (b) a part B comprising water, wherein the composition further comprises an oxidizing agent, a reducing agent, and reactive fillers in at least one of part A or part B and wherein at least one of the polyacid, oxidizing agent, and reducing agent is in a disperse phase. The dental composition can be used in many dental applications and is particularly suited for use as a cement.

Multi-part dental compositions and kits

A try-in paste, kit, and method of use, wherein the try-in paste includes: a polyalkylene glycol that is liquid at room temperature; a polyalkylene glycol that is solid at room temperature; and a particulate material; wherein the polyalkylene glycols are present in amounts to provide a paste having a consistency of about 20 mm to about 50 mm; and wherein the particulate material is present in an amount to provide a try-in paste of a shading that matches the shading of a corresponding polymerized dental cement.

Dental try-in pastes, kits, and methods

The present invention relates to electronic assemblies which include an elastomeric member made of a cured, room-temperature curable polysiloxane composition. When the assemblies are used to electrically interconnect a first contacting site on a first electronic device to a second contacting site on a second electronic device, the stress-relaxation resistant properties of the elastomer enhance local contact force to maintain a reliable connection.

Electronic assemblies with elastomeric members made from cured, room temperature curable silicone compositions having improved stress relaxation resistance

The present invention provides an addition-curable composition containing an inorganic, organic or organometalic compound of palladium in an amount effective to reduce the amount of hydrogen gas evolved in the reaction of the composition. A preferred embodiment is a dental impression material composition comprising: (a) an addition-curable compound; (b) a crosslinker; (c) a platinum-containing catalyst; and (d) a palladium compound. This generally provides a positive gypsum model of, for example, a dental impression that is substantially free of pits.

Compositions containing inorganic, organic and organometallic palladium

The present invention provides novel dental impression materials, the cure of which can be monitored visually, comprising: (1) a curable silicone polymer; (2) a crosslinker compound containing silicon-bonded-hydrogen groups; (3) a hydrosilation catalyst; and (4) one or more cure-indicating dyes that exhibit a color change in the presence of a silicon-bonded-hydrogen compound and a hydrosilation catalyst. The cure-indicating dye provides the composition with an initial pre-cure color and a different post-cure color. As a result of this change in color, the state of cure of the impression material can be visually monitored.

Dental impression material with cure-indicating dye

The present invention provides novel hydrosilation-curable compositions, the cure of which can be monitored visually, comprising: (1) an ethylenic compound; (2) a compound containing silicon-bonded-hydrogen groups; (3) a hydrosilation catalyst; and (4) one or more cure-indicating dyes with light absorption in the visible spectrum that exhibit a color change in the presence of a silicon-bonded-hydrogen compound and a precious metal hydrosilation catalyst. The cure-indicating dye provides the composition with an initial pre-cure color and a different post-cure color. As a result of this change in color, the state of cure of the composition can be visually monitored.

Cure-indicating molding and coating composition

The present invention provides shelf-stable RTV silicones which are useful for preparing sealants, caulks, adhesives, coatings, molding materials, lithographic plates, release liners and reflective sheets. The silicone composition of the present invention comprises: (a) a curable silicone polymer, e.g., vinyl-containing organopolysiloxane, (b) a crosslinker, e.g., organohydrogenpolysiloxane, (c) a platinum catalyst of the Karstedt type and (d) an amine stabilizer.

Growing community of inventors

Minneapolis, MN, United States of America

Mark S Konings