| abstract |
Composition (I), comprises: a polyamide (PA) (70-96 wt.%) (preferably PA 11, PA 12, aliphatic polyamides (obtained by condensation of 6-12C aliphatic diamine and 9-12C aliphatic diacid) or copolyamides 11/12), where the polyamide contains an organic or mineral catalyst; a plasticizer (4-10%); an elastomer nitrile butadiene rubber (NBR) or hydrogenated-NBR (H-NBR) (0-25%), where the sum of plasticizer and elastomer is 4-30%. Composition comprises: a polyamide (PA) (70-96 wt.%) (preferably PA 11, PA 12, aliphatic polyamides (obtained by condensation of 6-12 carbon aliphatic diamine and 9-12 carbon aliphatic diacid) or copolyamides 11/12 (having more than 90% of 11 or more than 90% of 12), where the polyamide contains an organic or mineral catalyst (added during polycondensation); a plasticizer (4-10%); an elastomer nitrile butadiene rubber (NBR) or hydrogenated-NBR (H-NBR) (0-25%), where the sum of plasticizer and elastomer is 4-30%. An independent claim is also included for a pipe comprising a layer of (I). |