Kerr Corporation

Ips Corporation

Ips, Corporation - Weld-on Division

Xiaoyi Xie

Duncan E Waller

Andreas Schneider

Cynthia H Kuess

Provided herein are adhesive compositions comprising a polyurea-poly(meth)acrylate interpenetrating polymer network. Further provided are two-part curable adhesive compositions comprising a Part A initiator composition and a Part B activator composition. The Part A initiator composition comprises an organoborane-amine complex and the Part B activator composition comprises an isocyanate that is reactive with the amine portion of the organoborane-amine complex to liberate organoborane from the organoborane-amine complex. Further provided are methods of using an adhesive composition comprising a polyurea-poly(meth)acrylate interpenetrating polymer network, such as, for example, in joining and/or bonding together polyolefin materials (e.g., polypropylene random copolymer (PP-R) pipes).

Polyurea-poly(meth)acrylate interpenetrating polymer network adhesive compositions and methods of using the same

A two part heat and moisture resistant acrylic adhesive composition is provided and includes an initiator part comprising at least one polymer dissolved in a (meth)acrylate monomer and a free radical initiator and an activator part comprising at least one polymer dissolved in a (meth)acrylate monomer, a pyridinic reducing agent, an organometallic curing promoter and a thiourea accelerator.

Heat and moisture resistant acrylic adhesive composition

A two-part acrylic adhesive composition comprising at least one organoborane-amine complex initiator and at least one multifunctional maleimide crosslinker.

Adhesive composition for bonding low surface energy polyolefin substrates

A delivery system for supplying a single dose quantity of dental impression material. The system includes a dispenser having first and second chambers sized to contain first and second components of the single dose of dental impression material. The chambers are sealed by a closure that is movable from a sealed position to permit dispensing of the components through a mixing tip. The resulting dental impression material may be applied directly to a patient's dental anatomy and/or to a dental tray.

Single dose dental impression material delivery system and method

The present invention provides hydrophilically modified curable silicone dental impression materials comprising an addition curable silicone prepolymer composition and a polymerizable hydrophilic modifier. The addition curable silicone prepolymer in the composition of the present invention comprises blended vinyl terminated organopolysiloxane fluids, an organohydrogen polysiloxane crosslinker, a platinum catalyst, a retarder, filler and optional additives. The cured compositions have a stable hydrophilic nature, excellent mechanical properties, and maximum long-term dimensional stability.

Hydrophilically modified curable silicone impression material

The invention describes a transparent, elastomeric dental cement composition suitable for temporary or provisional restorations that comprises: (a) at least one multifunctional oligomer or prepolymer as a binder; (b) at least one finely divided filler; and (c) at least one initiation system for polymerization. The cement has a high translucency which does not alter the color shade of a temporary prosthesis or appliance and great flexibility which allows the dentist to remove the temporary appliance easily and clean both the temporary appliance and the dental tissues easily. The invention also describes a method of using the transparent, elastomeric dental cement.

Dental cement for a temporary dental prosthesis or appliance and method

The invention describes a dental composition, delivery system and method for making temporary crowns and bridges in which the composition comprises two free-radical polymerizable pastes, one a catalyst paste and the other a base paste, wherein the catalyst paste comprises at least one polymerizable monomer, at least one polymerization initiator which is a peroxide oxidizing agent, at least one first polymerization inhibitor and a filler, and wherein the base paste comprises at least one polymerizable monomer, at least one polymerization accelerator, at least one second polymerization inhibitor, at least one non-polymerizable plasticizer and a filler. These catalyst and base pastes are stored in a dual cartridge from which they can be dispensed with a dispenser, preferably in a 1:1 volume ratio, and can be mixed in a static mixer to form a moldable polymerizing material, which is then applied to a prepared area of one or more teeth in a patient's mouth to form a crown or a bridge. The materials produced in this way have improved handling properties and exhibit a reduced oxygen inhibited layer on the surface of the cured material.

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Diamond Bar, CA, United States of America

Xiaoyi Xie