Organoborane polyamine complexes and adhesive composition made therewith
AssigneeMinnesota Mining and Manufacturing Company
InventorsAlphonsus V. Pocius, Tadesse G. Nigatu
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Abstract
A complex comprises organoborane and polyamine. The polyamine is the reaction product of a diprimary amine-terminated material and a material having at least two groups reactive with primary amine. The complexes are useful in systems for initiating the polymerization of acrylic monomer, which systems further include a material reactive with amine. Polymerizable acrylic monomer compositions useful as adhesives can be prepared.
Claims21
A complex comprising organoborane and polyamine, wherein the polyamine comprises the reaction product of a diprimary amine-terminated material and a material having at least two groups reactive with primary amine, wherein a majority of the terminal groups in the polyamine are primary amine.
An organoborane polyamine complex having the structure ##STR24## wherein:
- R.sup.1 is an alkyl group having 1 to 10 carbon atoms;
- R.sup.2 and R.sup.3 are independently selected from alkyl groups having 1 to 10 carbon atoms and phenyl-containing groups;
- Am is a polyamine that comprises the reaction product of a diprimary amine-terminated material and a material having at least two groups reactive with primary amine, wherein a majority of the terminal groups in the polyamine are primary amine;
- and
- the value of v is selected so as to provide an effective ratio of primary amine nitrogen atoms to boron atoms in the complex.
A system capable of initiating the polymerization of an acrylic monomer, the system comprising:
- a) a complex comprising organoborane and polyamine, the polyamine comprising the reaction product of a diprimary amine-terminated material and a material having at least two groups reactive with primary amine, wherein a majority of the terminal groups in the polyamine are primary amine;
- and
- b) an effective amount of a compound that is reactive with amine for liberating the organoborane.
Dependencies are inferred from the claim text.