Silicon-containing alpha-cyanoacrylates

Details Silicon-containing alpha-cyanoacrylates Silicon-containing alpha-cyanoacrylates

1991-04-24

1992-08-18

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

556416, C08F 3008, C07F 710

Patent

active

051400847

ABSTRACT:
A silicon-containing alpha-cyanoacrylate, useful as an adhesive, having the general formula: ##STR1## wherein R.sup.1 is an alkylene group containing 1 to 6 carbon atoms; and R.sup.2, R.sup.3 and R.sup.4 are each alkyl groups containing 1 to 6 carbon atoms, is disclosed. A process for preparing the silicon-containing alpha-cyanoacrylate compound is also set forth. In this process a cyanoacetate having the structural formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined above, is dehydrocondensed with formaldehyde or paraformaldehyde in the presence of a basic catalyst to produce a condensation polymer. The condensation polymer is thereupon depolymerized at elevated temperature to produce the silicon-containing alpha-cyanoacrylate.

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