Activator for cyanoacrylate adhesives
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsThomas Huver, Christian Nicolaisen, Susanne Camp
Life of this patent
Estimating the term…
Abstract
An activator for cyanoacrylate adhesives based on N,N-dialkyl aniline derivatives is provided. The activators are characterized by a molecular weight of more than 200 and by at most 3 carbon atoms for both N,N-dialkyl substituents together. Also provided are methods of production and use of the activator and to the combination product of the activator and the cyanoacrylate adhesive.
Claims36
In a method of activating the cure of cyanoacrylate adhesives the improvement comprising using as an activator an N,N-dialkyl aniline derivative having the following general formula ##STR3## in which R.sub.1 is a CH.sub.3 or C.sub.2 H.sub.5 group,
- m=0 or 1,
- n=0, 1 or 2;
- n.noteq.0 where m=1
- R.sub.2 is an H atom or a CH.sub.3 group and
- p=0 to 10.
A process for bonding parts to be joined with an adhesive joint, said process comprising applying an activator to at least one of said parts before and/or after a cyanoacrylate adhesive is applied to at least one of said parts, wherein said activator is an N,N-dialkyl aniline derivative having the following general formula ##STR4## in which R.sub.1 is a CH.sub.3 or C.sub.2 H.sub.5 group,
- m=0 or 1,
- n=0, 1 or 2;
- n.noteq.0 where m=1
- R.sub.2 is an H atom or a CH.sub.3 group and
- p=0 to 10.
A composition of matter useful for bonding parts to be joined comprising a cyanoacrylate adhesive and an N,N-dialkyl aniline derivative having the following general formula ##STR5## in which R.sub.1 is a CH.sub.3 or C.sub.2 H.sub.5 group,
- m=0 or 1,
- n=0, 1 or 2;
- n.noteq.0 where m=1
- R.sub.2 is an H atom or a CH.sub.3 group and
- p=0 to 10.
Dependencies are inferred from the claim text.