Elastomeric articles having improved chemical resistance
AssigneeKimberly-Clark Worldwide, Inc.
InventorsThomas G. Triebes, Mary E. Kister, Kermit R. Littleton
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Abstract
An elastomeric article (e.g., glove, condom, etc.) that includes a chemical protection layer that will not substantially dissolve when applied with certain chemicals or solvents, such as methyl methyacrylate, is provided. The chemical protection layer contains at least one crosslinked, modified silicone elastomer. For example, in one embodiment, the modified silicone chemical protection layer covers the outer surface of a styrene-ethylene-butylene-styrene (S-EB-S) block copolymer substrate body to impart relative chemical resistance to the resulting elastomeric article.
Claims35
An elastomeric article that comprises:
- a substrate body including a layer made of an elastomeric material, said substrate body having an inside surface and an outside surface;
- and
- a chemical protection layer covering said outside surface of said substrate body, said chemical protection layer including at least one modified silicone elastomer that has been crosslinked.
An elastomeric glove that comprises:
- a substrate body including a layer made of an elastomeric material, said elastomeric material including at least one styrene-ethylene-butylene-styrene triblock copolymer, wherein said substrate body has an inside surface and an outside surface;
- and
- a chemical protection layer covering said outside surface of said substrate body, said chemical protection layer including at least one modified silicone elastomer that has been crosslinked, wherein said modified silicone elastomer is selected from the group consisting of phenyl-modified silicones, vinyl-modified silicones, methyl-modified silicones, fluoro-modified silicones, alkyl-modified silicones, alkoxy-modified silicones, alkylamino-modified silicones, and combinations thereof.
A method for forming an elastomeric article, said method comprising:
- furnishing a liquid solution comprising a modified silicone elastomer and a solvent;
- dipping a former having the shape of the elastomeric article into said liquid solution and withdrawing the former from said liquid solution;
- evaporating the solvent from the liquid solution present on the former so that a modified silicone elastomer film is formed thereon;
- and
- heating the modified silicone elastomer to induce crosslinking.
Dependencies are inferred from the claim text.