Anionic polymerization inhibitor for cyanoacrylate adhesives

Details Anionic polymerization inhibitor for cyanoacrylate adhesives Anionic polymerization inhibitor for cyanoacrylate adhesives

1978-08-18

1980-01-08

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

2604654, 428500, C08F 240, C08F12050

Patent

active

041828232

ABSTRACT:
An adhesive composition based on 2-cyanoacrylate esters contains as an anionic polymerization inhibitor an acid chelate formed of boric acid or a derivative thereof and a selected polyhydroxy compound. The chelate is conveniently formed in situ in the 2-cyanoacrylate ester, but may also be prepared separately and added to the ester directly. An exemplary acid chelate used as stabilizer is prepared from boric acid and pyrogallol. The resulting stabilized adhesive compositions have a rapid cure rate and may be used on a wide variety of substrates.

REFERENCES:
patent: 2912454 (1959-11-01), McKeever
patent: 2926188 (1960-02-01), McKeever et al.
patent: 3728375 (1973-04-01), Coover et al.
Chem Abs., 80, (1974) 15431s.
J.A.C.S., 91, (1969) pp. 317-322.

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