Polymerizable preparations based on epoxides that contain silicon

US6779656B2 · kind B2 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Thomas Klettke · Dießen, DE
• Wolfgang Weinmann · Gilching, DE

Key dates

• Filing date: Jul 11, 2002
• Grant date: Aug 24, 2004
• Expiry date: Jul 11, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G59/3254
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to polymerizable preparations which contain: (a) 3 to 80 wt. % of an epoxy or of a mixture of epoxies of general formula (I), whereby n and m, independent of one another, represent 0, 1, 2 or 3, and n+m ranges from 2 to 6, and whereby the molar mass of the epoxy or the average molar mass of the mixture of epoxies ranges from 250 to 1000 g/mol; (b) 0 to 80 wt. % of an epoxy or of a mixture of epoxies that differ from (a); (c) 3 to 85 wt. % of fillers; (d) 0.001 to 25 wt. % of initiators, retarders and/or accelerators, and; (e) 0 to 25 wt. % of auxiliary agents, whereby the specified percentages refer to the total weight of the preparation.