Organoborane polyoxyalkylenepolyamine complexes and adhesive compositions made therewith
AssigneeMinnesota Mining and Manufacturing Company
InventorAlphonsus V. Pocius
Life of this patent
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Abstract
A complex comprises organoborane and polyoxyalkylenepolyamine. The complexes are useful in systems for initiating the polymerization of acrylic monomer, which systems further include an amine reactive compound. Polymerizable acrylic monomer compositions useful as adhesives can be prepared.
Claims23
A composite article comprising a first substrate, and a second substrate bonded to the first substrate by an acrylic adhesive, wherein the acrylic adhesive comprises the polymerization product of a polymerizable acrylic composition that comprised:
- a) at least one acrylic monomer;
- b) an effective amount of a complex comprising organoborane and polyoxyalkylenepolyamine;
- and
- c) an effective amount of a compound that was reactive with amine for liberating the organoborane to initiate polymerization of the at least one acrylic monomer.
A method of bonding a low surface energy polymer to a substrate, the method comprising the steps of:
- a) providing a low surface energy polymer;
- b) providing a substrate;
- c) providing an adhesive composition comprising:
- i) at least one acrylic monomer;
- ii) an effective amount of a complex comprising organoborane and polyoxyalkylenepolyamine;
- and
- iii) an effective amount of a compound that is reactive with amine for liberating the organoborane to initiate polymerization of the at least one acrylic monomer;
- d) applying the adhesive composition to either the low surface energy polymer or the substrate;
- e) joining the low surface energy polymer and the substrate with the adhesive composition therebetween;
- and
- f) permitting the adhesive composition to cure to adhesively bond the low surface energy polymer and the substrate.
Dependencies are inferred from the claim text.