Anaerobically compositions containing acrylic ester-acids
AssigneeHenkel & Cie G.m.b.H.
InventorsBernd Wegemund, Joachim Galinke
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Abstract
Anaerobically hardening adhesive compositions principally composed of a polymerizable acrylic ester and an organic aerobically-inactive, anaerobically-active peroxide polymerization catalyst therefor possess improved latent adhesive properties for metals when they contain an acrylic ester-acid of the formula: ##STR1## wherein R is --H or --CH.sub.3 ; R' is H, halogen, --COOH, --CN, and loweralkyl, and X is a divalent C.sub.1-6 hydrocarbon group, or a mixture of such ester-acids.
Claims14
An anaerobically setting adhesive and sealing composition consisting essentially of a polymerizable acrylic ester of spreadable viscosity, an organic aerobically inactive, anaerobically active peroxide polymerization initiator therefor, and an effective amount as latent agent improving the adhesiveness of said composition for metals when anaerobically set, in the range of 3% to 25% by weight, of an acrylic ester-acid of the formula:
- ##STR3## wherein R represents a substituent selected from the group consisting of --H and --CH.sub.3, R' represents a substituent selected from the group consisting of H, halogen, --COOH, --CN, and loweralkyl, and X represents a divalent C.sub.1-6 hydrocarbon group.
Dependencies are inferred from the claim text.