Elastomeric articles having improved chemical resistance

Details Elastomeric articles having improved chemical resistance Elastomeric articles having improved chemical resistance

A - Human Necessities

41

D

A41D 19/00 (2006.01) A61L 31/04 (2006.01) A61L 31/10 (2006.01) A61L 31/14 (2006.01) C08G 18/08 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2470405

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.

L'invention concerne un article élastomérique (20) (par exemple gant, préservatif, etc.) qui comporte une couche de protection chimique (36) qui ne se dissout presque pas à l'application avec certains agents chimiques ou solvants, tels que le méthyacrylate de méthyle. La couche de protection chimique (36) contient au moins un élastomère réticulé modifié. A titre d'exemple, dans un premier mode de réalisation, la couche de protection chimique à base de silicone modifié (36) recouvre la surface extérieure d'un corps de substrat (24) à base de copolymère séquencé styrène-éthylene-butylène-styrène (S-EB-S) pour conférer à l'article élastomérique obtenu (20) une résistance chimique relative.

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