Two-component chemical fastening systems

US7166670B2 · kind B2 · utility

Assignee

• DSM IP ASSETS B.V. · NL

Inventors

• Jan Udding · Zwolle, NL
• Agnes Wolters · Laag Zuthem, NL
• Heinz Wilhelm · Haßloch, DE
• Armin Pfeil · Kaufering, DE
• Thomas Bürgel · Landsberg, DE
• Lutz Sager · Scheuring, DE

Key dates

• Filing date: Dec 19, 2001
• Grant date: Jan 23, 2007
• Expiry date: Aug 28, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6715
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to two-component chemical fastening systems, the A-component containing an unsaturated polyester and a reactive diluent, and the B-component containing a peroxide and an extender, wherein the extender is either a monomeric component according to formula 1(A—CH═CH—O)n—R   (formula 1)or a resinous compound comprising, in a covalently built-in manner, a component having vinyl ether group(s), and the content of the peroxide in the B-component is from 0.5 to 99 wt. %. In the formula A, R and n are specified as hydrogen or C1-3 alkyl; C1-20 (hetero)-aliphatic with hydroxyl or amino groups, or poly(C2 or 3)glycol with 2–120 glycol units; and 1 to 4, respectively.The resinous compounds with built-in vinyl ether group(s) (0.5 to 50 wt. %, calculated as indicated) are obtained by reaction of a mixture of appropriate amounts of: The invention also relates to methods for preparing (the B-component) of such two-component chemical fastening systems, as well as to use of the systems for chemical fastening.