SELECTIVE CATALYTIC REDUCTION HOSE
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United States of America Patent
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Jun 17, 2014
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Aug 15, 2013
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Abstract
Hoses that in particular are suitable for use in selective catalytic reduction applications, which are flexible and chemically impermeable with a low swelling rate when in contact with aqueous urea solutions require conveying. The hoses be heatable by electrical conductor(s). The hoses may include an insulating internal rubber made of a vulcanized rubber mixture having a blend of ethylene-propylene-diene rubber and chlorobutyl rubber, at least one reinforcement layer disposed upon the insulating internal rubber, and an external rubber made of a vulcanized rubber mixture containing ethylene-propylene-diene rubber, disposed upon the reinforcement layer(s).
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