Fast curing phosphate modified anaerobic adhesive compositions

Claim 1

An anaerobic adhesive and sealant composition comprising (a) at least one anaerobically polymerizable material having at least one acrylic or substituted acrylic unsaturated group; (b) at least one organic peroxide; (c) at least 0.05 percent by weight, based on weight of anaerocially polymerizable material, of at least one organic monoester of phosphoric acid having the formula ##STR4## wherein R 1 is selected from the group consisting of hydrogen, halogen, an alkyl group having from 1 to 8 carbon atoms and CH 2 ═CH--; A is selected from the group consisting of --R 2 O-- and (R 3 O) n , wherein R 2 is an aliphatic or cycloaliphatic group having from 1 to 9 carbon atoms, r 3 is an alkylene group having from 1 to 7 carbon atoms, and n is an integer from 2 to 10; (d) at least 0.01 percent by weight, based on total weight of said anaerobically polymerizable adhesive and sealant composition, of at least one tertiary amine having the formula ##STR5## wherein Z is methylene; X is a carbon or nitrogen atom; Y is selected from the group consisting of hydrogen, hydroxy, amino, alkyl of 1 to 8 carbon atoms, and alkoxy having from 1 to 8 carbon atoms; a is zero or 1; and b is 1 or 2; and (e) an effective amount, based on total weight of anaerobically polymerizable material of at least one carboxylated nitrile elastomer consisting essentially of interpolymers of 1,3-butadiene, acrylonitrile and a carboxyl-containing monomer.