Organoborane polyamine complex initiator systems and polymerizable compositions made therewith
Assignee3M Innovative Properties Company
InventorAlphonsus V. Pocius
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Abstract
A composition comprises organoborane polyamine complex and polyol. The composition can form a part of a polymerization initiator system that also includes polyisocyanate. The system can be used to initiate polymerization of acrylic monomer and to form a polyurethane/polyurea acrylic adhesive that has exceptionally good adhesion to low surface energy polymers.
Claims22
A polymerization initiator system comprising:
- (a) organoborane polyamine complex;
- (b) polyisocyanate reactive with the polyamine component of the complex to liberate the organoborane;
- and
- (c) polyol.
A system capable of both initiating the polymerization of acrylic monomer and forming polyurethane/polyurea at room temperature, the system comprising:
- (a) a solution of organoborane polyamine complex and polyol, wherein the polyol is not reactive with the polyamine;
- and
- (b) polyisocyanate that is reactive with the polyamine to liberate the organoborane for initiating polymerization of the acrylic monomer.
A two-part system capable of initiating the polymerization of acrylic monomer, the two-part system comprising:
- (a) a first part comprising organoborane polyamine complex, and polyol;
- and
- (b) a second part comprising polyisocyanate reactive with the polyamine component of the complex to liberate the organoborane.
Dependencies are inferred from the claim text.