Energy-polymerizable adhesive, coating and film
AssigneeMinnesota Mining and Manufacturing Company
InventorsPeggy S. Willett, Janis Robins, Kent S. Tarbutton, Michael A. Kropp
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Abstract
Polymerizable compositions having at least one cationically polymerizable monomer; an optional free radically polymerizable monomer; an energy-polymerizable catalyst system wherein the catalyst system comprises an organometallic complex salt; a thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal ion of the organometallic complex salt; optionally, a peroxide. The polymerized compositions are useful as cured adhesive films, pressure sensitive adhesives, protective coatings, liquid adhesives, structural and semi-structural adhesives, and free standing films.
Claims6
An epoxy-acrylate coating comprising (a) a substrate, and (b) a polymerized product of an epoxy-acrylate polymerizable composition comprising:
- 1. at least one free radically polymerizable acrylate monomer;
- 2. at least one cationically polymerizable epoxy monomer;
- 3. a catalyst system comprising;
- (a) at least one organometallic complex salt.
- (b) a thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal ion of the organometallic complex salt.
- (c) optionally, peroxide, and
- (d) optionally, at least one free radical initiator;
- 4. optionally, a buffer compound;
- and
- 5. optionally, a mono- or polyfunctional alcohol.
An epoxy-acrylate free standing film comprising a polymerized product of an epoxy-acrylate polymerizable composition comprising:
- 1. at least one free radically polymerizable acrylate monomer;
- 2. at least one cationically polymerizable epoxy monomer;
- 3. a catalyst system comprising;
- (a) at least one organometallic complex salt.
- (b) a thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal ion of the organometallic complex salt.
- (c) optionally, peroxide, and
- (d) optionally, at least one free radical initiator;
- 4. optionally, a buffer compound;
- and
- 5. optionally, a mono- or polyfunctional alcohol.
An epoxy-acrylate conductive adhesive comprising (a) conductive particles and (b) a polymerized product of an epoxy-acrylate polymerizable composition comprising:
- 1. at least one free radically polymerizable acrylate monomer;
- 2. at least one cationically polymerizable epoxy monomer;
- 3. a catalyst system comprising;
- (a) at least one organometallic complex salt.
- (b) a thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal ion of the organometallic complex salt.
- (c) optionally, peroxide, and
- (d) optionally, at least one free radical initiator;
- 4. optionally, a buffer compound;
- and
- 5. optionally, a mono- or polyfunctional alcohol.
Dependencies are inferred from the claim text.