Patent ID: 7166670

Claim:
Two-component chemical fastening system comprising a first, “A”, component containing a diluted resin and, optionally, an accelerator and a second, “B”, component containing a peroxide and an extender for the peroxide, wherein the extender for the peroxide in the B-component is either: I. a monomeric component containing one or more vinyl ether group(s) and having a structure according to formula 1 (A—CH═CH—O) n —R (formula 1) where A represents hydrogen or an alkyl group with 1–3 C atoms, and where, if there is more than one A, the individual A groups may be the same or different R either represents an aliphatic group, optionally branched, with 1–20 C atoms, which may also contain a cyclohexyl or a 1,4-dimethylenecyclohexyl group and in the carbon chain optionally also one or more O and/or S atoms, which group may be substituted with one or more functional group(s) chosen from either a hydroxyl group or an amino group, optionally substituted with one or two alkyl groups with 1–3 C atoms, or represents a polyethylene glycol or a polypropylene glycol with an average chain length of between 2 and 120 glycol units, optionally with an aliphatic group with 1–5 C atoms attached to the chain's free hydroxyl group; and n is , 1, 2, 3or 4, or II. is a suitable resinous compound comprising, in a covalently built-in manner, a component containing one or more vinyl ether group(s), and the content of peroxide in the B-component is from 0.5 to 99 wt. %.