Claims
- 1-32. (canceled)
- 33. A two-part adhesive system with an improved onset of handling strength, comprising:
(a) an adhesive part being a mixture formed from (I) an ethylenically unsaturated monomer selected from the group consisting of acrylate ester monomer, methacrylate ester monomer, or mixtures thereof, (II) a metal molybdate, (III) an ethylenically unsaturated carboxylic acid selected from the group consisting of acyclic acid, methacrylic acid, or mixtures thereof, wherein said adhesive part is substantially free of a metal salt of an ethylenically unsaturated carboxylic acid; and (b) an activator part which includes a free radical generator.
- 34. The adhesive system of claim 33, wherein said adhesive part further comprises an admixed elastomeric material having a Tg less than −25° C. and soluble in said ethylenically unsaturated monomer.
- 35. The adhesive system of claim 34, wherein said elastomeric material is selected from the group consisting of polychloroprene, polyacrylonitrile-butadiene copolymers, copolymers of styrene and isoprene, copolymers of styrene and butadiene, carboxylated polychloroprenes, carboxylated polyacrylonitrile-butadiene copolymers, copolymers of ethylene and vinyl acetate, copolymers of styrene and olefinically unsaturated hydrocarbons, polybutylene, acrylate-based elastomers and mixtures thereof.
- 36. The adhesive system of claim 35, wherein said elastomeric material is polychloroprene.
- 37. The adhesive system of claim 33, wherein said adhesive part further comprises an admixed phosphorous-based adhesion promoter.
- 38. The adhesive system of claim 37, wherein said phosphorous-based adhesion promoter is an acrylate or methacrylate ester phosphate.
- 39. The adhesive system of claim 33, wherein said adhesive part further comprises an admixed core-shell impact modifier swellable in said ethylenically unsaturated monomer.
- 40. The adhesive system of claim 39, wherein said core-shell impact modifier is selected from the group consisting of MBS impact modifiers, ASA impact modifiers, ABS impact modifiers and mixtures thereof.
- 41. The adhesive system of claim 40, wherein said core shell impact modifier is methacrylate-butadiene-styrene graft copolymer.
- 42. The adhesive system of claim 33, wherein said metal of said metal molybdate is a divalent metal.
- 43. The adhesive system of claim 42, wherein said divalent metal is zinc.
- 44. The adhesive system of claim 33, wherein said adhesive part and said activator part are in a ratio from about 20:1 to about 1:1.
- 45. The adhesive system of claim 44, wherein said ratio is from about 15:1 to about 4:1.
- 46. The adhesive system of claim 33, wherein said free radical generator is selected from the group consisting of peroxides, hydroperoxides, and mixtures thereof.
- 47. The adhesive system of claim 46, wherein said free radical generator is benzoyl peroxide.
- 48. The adhesive system of claim 33, wherein said adhesive part further comprises at least one admixed reducing agent.
- 49. The adhesive system of claim 33, wherein said activator part further comprises an admixed epoxy resin.
- 50. The adhesive system of claim 49, wherein said epoxy resin is a diglycidyl ether of Bisphenol-A.
- 51. The adhesive system of claim 33, wherein said activator part further comprises an admixed plasticizer.
RELATED APPLICATIONS
[0001] This application is a division of application Ser. No. 10/072,696, filed Feb. 7, 2002 entitled “TWO-PART STRUCTURAL ADHESIVE SYSTEMS AND LAMINATES INCORPORATING THE SAME”, which is incorporated herein by reference.
Divisions (1)
|
Number |
Date |
Country |
Parent |
10072696 |
Feb 2002 |
US |
Child |
10822186 |
Apr 2004 |
US |