Use of nanoparticles to adjust refractive index of dental compositions

US7090721B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Bradley D. Craig · Lake Elmo, US
• Brant U. Kolb · Afton, US
• Joel D. Oxman · Minneapolis, US
• Robert F. Peez · Landsberg, DE
• Sybille Frank · Hanerau-Hademarschen, DE

Key dates

• Filing date: May 17, 2004
• Grant date: Aug 15, 2006
• Expiry date: May 17, 2024

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/889
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention features ionomer compositions containing nanofillers that provide the composition with desirable aesthetic properties (e.g., optical translucency). The compositions can be used in a variety of dental and orthodontic applications, for example, as adhesives, cements, restoratives, coatings and sealants.