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US 6,649,729 B1Granted
Novolaks as water-unaffected accelerators for epoxy resin hardeners
AssigneeVantico Inc.
InventorsWolfgang Scherzer, Jörg Volle
Life of this patent
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Abstract
Curable mixtures based on epoxy resins and amine hardeners, if required additionally using solvents, water, plasticisers, UV stabilisers, colourants, pigments, fillers, which mixtures contain as accelerator at least one compound of general formula (I), wherein R1, R2, R3, R4 are each independently of one another H or an unbranched or branched alkyl radical containing 1 to 15 carbon atoms, and n is 0 to 10.
Claims5
A curable mixture comprising
- (a) one or more epoxy resins;
- (b) one or more hardeners selected from the group consisting of aliphatic, cycloaliphatic, or araliphatic amines, and imidazoline group-containing aminoamides and their adducts with glycidyl compounds, which contain on average more than two reactive active hydrogens bound to amino nitrogen atoms per molecule;
- (c) at least one accelerator compound of Formula I:
- wherein R1, R2, R3, R4 are each independently of one another H or an unbranched or branched alkyl radical containing 1 to 15 carbon atoms, and n is 0 to 10, and wherein the accelerator compound(s) of Formula I are used in amounts of from 1 to 25% by weight based on the hardener;
- and
- (d) optionally comprising solvents, water, plasticisers, UV stabilisers, colourants, pigments, or fillers.
3 more elements
Dependencies are inferred from the claim text.