C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/1342, 402/32
C08F 220/20 (2006.01) C08F 126/02 (2006.01) C08L 39/00 (2006.01) C09J 4/00 (2006.01) C09J 4/06 (2006.01)
Patent
CA 1091847
ABSTRACT OF THE DISCLOSURE A solventless, fast-setting anaerobic adhesive composition comprises two monomer parts which are adapted to be copolymerized anaerobically at ambient temperature between opposing surfaces to form a high-strenght bond thereto. One port comprises a multifunctional acrylate monomer and the other an N-vinylamide monomer. The formu- lation also includes a redox system consisting of oxidizing and reducing agent components for initiating polymerization between said monomers. The oxidizing agent of the redox system may be present in either one of said parts, prefer- ably with the multifunctional acrylate. The reducing agent is present in the other part, ususally the N-vinylamide. Upon anaerobic admixing of the respective parts of the com- position at ambient temperature, the oxidizing and reducing agents react to generate free radicals which initiates co- polymerization of the monomers to form the desired high- strength adhesive bond to said surfaces.
290128
G. A. F. Corporation
Smart & Biggar
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