Inhibitor combination, resin mixture containing same and use of same

US8735475B2 · kind B2 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Armin Pfeil · Kaufering, DE
• Johannes Brinkhorst · Landsberg, DE
• Didier Gigmes · Allauch, FR
• Luca Valgimigli · Bologna, IT
• Derek A. Pratt · Ottawa, CA
• Denis Bertin · Marseilles, FR

Key dates

• Filing date: Jun 8, 2012
• Grant date: May 27, 2014
• Expiry date: Jun 8, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/13
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The use of a mixture of 5-pyrimidinol derivatives with sterically hindered phenol derivatives for adjusting the reactivity and the gel time of resin mixtures and reactive resin mortars based on radically polymerizable compounds is described. Furthermore, a resin mixture containing the inhibitor combination, a reactive resin mortar containing this resin mixture and two-component mortar systems with the reactive resin mortar according to the invention and a hardener with improved stability in storage and good low-temperature hardening properties are also described. The resin mixture according to the invention is suitable in particular for chemical fastening of construction elements in boreholes in various substrates.