One component (1K) anaerobic curable composition

Abstract

The present invention provides an one-component (1K) anaerobic curable composition comprising, based on the weight of the composition: from 15 to 35 wt. % of a1) at least one (meth)acrylate monomer represented by Formula I: H2C═CGCO2R1  (I) wherein: G is hydrogen, halogen or a C1-C4 alkyl group; and, R1 is selected from C1-C30 alkyl, C3-C30 cycloalkyl, C2-C20 alkenyl and C2-C12 alkynyl; from 5 to 25 wt. % of a2) at least one (meth)acrylate monomer represented by Formula II: H2C═CQCO2R2  (II) wherein: Q may be hydrogen, halogen or a C1-C4 alkyl group; and, R2 may be selected from C6-C18 aryl, alkaryl and aralkyl; from 35 to 75 wt. % of a3) at least one (meth)acrylate-functionalized oligomer; from 0.1 to 10 wt. % of b) at least one cure initiator; from 0.1 to 5 wt. % of c) at least one cure accelerator; from 1 to 5 wt. % of d) at least one cellulose mixed ester of which all of said ester groups are selected from C1-C6 ester groups; and, from 1 to 5 wt. % of e) fumed silica.

Dependencies are inferred from the claim text.