Hydrogen peroxide complexes and their use in the cure system of anaerobic adhesives
AssigneesHenkel Corporation, Henkel Ireland Limited
InventorsPhilip T. Klemarczyk, David Birkett, David Farrell, Peter Wrobel, Ciaran McArdle, Greg Clarke
Life of this patent
Estimating the term…
Abstract
Provided is a complex of hydrogen peroxide and at least one compound represented by Formula I: wherein X is: —C(R3)3, —C≡C(R3), —O(R3), —N(R3)2, or —S(R3); and R1, R2, and R3 are each independently selected from H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heteroaryl heteroarylalkyl, heterocyclyl, and cycloalkyl, or R2 and an R3 are optionally taken together to form an alicyclic ring. Also provided are anaerobic cure systems and curable compositions employing the complexes described herein.
Claims19
An anaerobic cure system comprising:
- (a) a complex comprising (1) hydrogen peroxide and (ii) at least one compound represented by Formula I:
- wherein X is selected from the group consisting of
- —C(R3)3, —C≡C(R3), —O(R3), —N(R3)2, and —S(R3);
- and
- R1, R2, and R3 are each independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heteroaryl, heteroarylalkyl, heterocyclyl, and cycloalkyl, or R2 and an R3 are optionally taken together to form an alicyclic ring, provided that when X is —N(R3)2 and Formula I is represented by the structure:
- at least one of R1, R2, and at least one of R3, are each independently selected from alkyl groups;
- and
- (b) one or more anaerobic cure components selected from the group consisting of saccharin, toluidines and acetyl phenyl hydrazine.
An anaerobic cure system comprising:
- (a) a complex comprising (i) hydrogen peroxide and (ii) at least one compound represented by Formula I:
- wherein X is selected from the group consisting of
- —C(R3), —C≡C(R3), —O(R3), and —S(R3);
- and R1, R2, and R3 are each independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heteroaryl, heteroarylalkyl, heterocyclyl, and cycloalkyl, or R2 and an R3 are optionally taken together to form an alicyclic ring;
- and
- (b) one or more anaerobic cure components selected from the group consisting of saccharin, toluidines and acetyl phenyl hydrazine, provided that when X is
- and Formula I is represented by the structure:
- at least one of R1 or R2, and at least one R3 is each independently selected from alkyl groups.
An anaerobic cure system comprising:
- (a) a complex comprising (i) hydrogen peroxide and (ii) at least one compound represented by Formula I:
- wherein X is selected from the group consisting of
- —C(R3)3, —C≡C(R3), —O(R3), and —S(R3);
- and R1, R2, and R3 are each independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heretoaryl heteroarylalkyl, heterocyclyl, and cycloalkyl, or R2 and an R3 are optionally taken together to form an alicyclic ring;
- and
- (b) one or more anaerobic cure components selected from the group consisting of saccharin, toluidines and acetyl phenyl hydrazine, provided that when X is —C(R3)3 at least one of R1 or R2, and at least one R3 is each independently selected from alkyl groups.
An anaerobic cure system comprising:
- (a) a complex comprising (i) hydrogen peroxide and (ii) at least one compound represented by Formula I:
- wherein X is selected from the group consisting of
- —C(R3)3, —C≡C(R3), —O(R3), and —S(R3);
- and R1, R2, and R3 are each independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, aralkyl, aryl, heteroaryl heteroarylalkyl, heterocyclyl, and cycloalkyl, or R2 and an R3 are optionally taken together to form an alicyclic ring;
- and
- (b) one or more anaerobic cure components selected from the group consisting of saccharin, toluidines and acetyl phenyl hydrazine, provided that when X is —C(R3)3 at least one of R1 or R2, and at least one of R3 is each independently selected from alkyl groups, wherein R3 and R2 are taken together to form a C2-C6 alicyclic ring, and Formula I is represented by the following structure:
An anaerobic cure system, comprising
- a complex hydrogen peroxide and at least one compound selected from the group consisting of:
- N-substituted urea, N-substituted pyrrolidinone, and N-substituted acrylamide;
- and one or more anaerobic cure components selected from the group consisting of accelerators, stabilizers, and reducing agents.
Dependencies are inferred from the claim text.