Sealant composition
AssigneeLoctite (Ireland) Limited
InventorsTadhg E. Casey, David P. Melody
Life of this patent
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Abstract
An anaerobic liquid acrylate sealant composition contains short portions of one or more types of fibre, particularly aramid fibre pulp, as a filler. A particulate filler such as fumed silica and/or micronized polyethylene may also be present. The composition suitably is based on a high proportion of monofunctional acrylate ester monomer, and a polyacrylate plasticiser. The composition is used for sealing joints in pipework where it is desired to seal the joint almost immediately but to allow adjustment of the joint for at least 24 hours.
Claims18
An improved anaerobically curable liquid (meth)acrylate ester sealant composition wherein the improvement comprises employing therein from about 0.1 to about 5% by weight of a fibrillated fibrous filler having a bulk density of less than about 25 lb. per cubic foot.
An improved anaerobically curable liquid (meth)acrylate ester sealant composition wherein the improvement comprises employing therein an effective amount of a fibrillated fibre so as to render said anaerobic sealant composition less susceptible to leaks, prior to cure, than are found with anaerobic sealant composition of like viscosity but without said fibrillated fibre.
Dependencies are inferred from the claim text.