SILANE/UREA COMPOUND AS A HEAT-ACTIVATED CURING AGENT FOR EPOXIDE RESIN COMPOSITIONS

摘要

Silanes of formula (I):;;or inorganic fillers whose surface is coated or derivatized with a silane of formula (I), are curing agents for epoxy resins that are activatable at elevated temperature. The thermosetting epoxy resin compositions allow a large reduction in the curing temperature without great impairment of their storage stability. They are therefore very well suited for single-component thermosetting epoxy adhesives, which in particular may contain impact modifiers.

主权项

1. A silane of formula (I a) wherein
A is —CH2—CH2—CH2—, Z1 is CH3, Z3 is H, Z4 is CH3, Z5 is CH3, X is O, and b is 1; or
A is —CH2—CH2—CH2—, Z1 is CH3, Z3 is CH3, Z4 is H, Z5 is CH3, X is O, and b is 1; or
A is —CH2—, Z1 is CH3 or CH2CH3, Z3 is H, Z4 is a monofunctional aliphatic group containing 1 to 12 C atoms, Z5 is a monofunctional aliphatic group containing 1 to 12 C atoms, X is O, and b is 1.