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US 6,746,723 B2Granted
UV curable elastomer composition
AssigneeDuPont Dow Elastomers L.L.C.
InventorsPatrick Luigi Paglia, Christian Ruepping
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Abstract
Ethylene copolymer elastomer compositions, acrylate rubber compositions, nitrile rubber compositions, fluoroelastomer compositions, and chlorinated olefin elastomer compositions are provided which are curable by exposure to UV radiation. The compositions are particularly suited for production of elastomeric seals using hot melt equipment and a gasketing in place technique.
Claims14
A process for applying a seal to an article comprising the steps of
- A) depositing a thermally stable, extrudable composition comprising:
- 1) 70-99 weight percent of a fluoroelastomer;
- 2) 0.5 to 20 weight percent of a multifunctional crosslinking agent selected from the group consisting of multifunctional acrylic crosslinking agents, multifunctional methacrylic crosslinking agents, multifunctional cyanurate crosslinking agents, and multifunctional isocyanurate crosslinking agents;
- and
- 3) 0.1 to 10.0 weight percent of a UV initiator wherein the weight percentages of each of A) 1), A) 2), and A) 3) are based on the combined weight of A) 1), A) 2), and A) 3) onto said axticle in the shape and thickness desired to form an uncured seal composition;
- and
- B) irradiating said uncured seal composition with UV radiation for a time sufficient to cure said uncured seal composition.
4 more elements
Dependencies are inferred from the claim text.