Patent ID: 11897978
Assignee: DYMAX CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 17:
18. A curable composition comprising:
0.1 to 30 wt % of an acid catalyzed urethane (meth)acrylate oligomer having a structure of at least one of Formula (1) or Formula (2) that was made with 0.05 to 6 wt % of an acid catalyst based on the total weight of the urethane (meth)acrylate oligomer:

A-D-(PD)n-A  (1)

A-(PD)n-P-A  (2)

wherein each A independently is a monohydroxy functional (meth)acrylate group; each D independently is derived from a di- or tri-functional isocyanate group; each P independently is derived from a polyol having a weight average molecular weight of 50 to 12,000 Daltons based on polystyrene standards; and n is 10 to 100;
20 to 98 wt % of a cyanoacrylate monomer;
0.005 to 4 wt % of a metallocene compound;
0.001 to 1 wt % of a free radical polymerization inhibitor; and
0.01 to 0.1 wt % of an acidic anionic polymerization inhibitor.