Addition polymerizable urethane-based anaerobic adhesives made f

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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1563311, 1563314, 528 49, 528 69, 528 75, 526301, 526302, C08F 406

Patent

active

044516274

ABSTRACT:
An addition polymerizable adhesive is prepared by using the reaction product of (1) an isocyanate compound (such as 2-isocyanatoethyl methacrylate) and (2) an active hydrogen compound (such as a poly(ethylene glycol)) wherein the reaction between (1) and (2) is catalyzed with a tin (II) organoester (such as stannous octoate). The adhesives of the invention have surprisingly long shelf lives compared to similar adhesives made with other catalysts.

REFERENCES:
patent: 3425988 (1969-02-01), Gorman et al.
patent: 4233425 (1980-11-01), Tefertiller et al.
patent: 4320221 (1982-03-01), Hoffman
patent: 4374969 (1983-02-01), Frisch

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