HOSE HAVING MEDIA-RESISTANT INNER LAYER, APPLICATION AND METHOD FOR PRODUCTION THEREOF
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United States of America Patent
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app pub date -
Jan 27, 2012
filing date -
Jul 27, 2009
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Abstract
A hose has at least the following layer structure: an inner layer made of an amine-bonded rubber mixture having media-resistance properties and an adhesion layer of a peroxide-bonded rubber mixture lying on the external side of the inner layer. The inner layer and the adhesion layer form an adhesive bond. The inner layer includes a rubber mixture based on unblended AEM or an AEM blend or on unblended ACM or an ACM blend and the adhesion layer includes a rubber mixture based on EPM or EPDM, each of which are unblended. The hose often includes a strengthening support layer and an external layer of a rubber mixture having resistance to external influences. The external layer preferably includes a peroxide-bonded rubber mixture based on unblended EPM or an EPM blend or on unblended EPDM or an EPDM blend.
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