Patent ID: 6509394
Filing Date: 2003-01-21
Classification: C09J

Abstract:
An anaerobic adhesive composition, reaction products of which demonstrate improved initial room temperature torque strength on an oxidizable element, which element participates in curing said composition through its oxidation, said composition comprising:a.) at least one anaerobically curable (meth)acrylate monomer; b.) a cure system for said (meth)acrylate monomer comprising: (i) at least one free radical generating material; (ii) an acidic reducing agent for said free radical generating material, each of (i) and (ii) being present in substantially equal amounts; and (iii) an accelerator for the reduction of said free radical generating material, said accelerator being present in amounts of about half of components (i) or (ii); wherein said cure system is present in an amount sufficient to achieve about 30% or more of its 24 hour cured torque strength in about 5 minutes or less and wherein said anaerobic adhesive composition is free of maleic acid.