Patent ID: 8361579

Claim:
A pipe adapted for transporting water containing disinfectant, wherein the pipe is prepared from a bi- or multi-modal polyethylene resin produced either with two or more single site catalyst systems in a single reactor or with a single site catalyst system in two serially connected reactors, wherein at least one of the single site catalyst systems is a metallocene catalyst system comprising a bisindenyl or a bis tetrahydroindenyl catalyst component of formula R″(Ind) 2 MQ 2 wherein Ind is a substituted or unsubstituted indenyl or tetrahydroindenyl group, R″ is a structural bridge imparting stereorigidity to the complex, M is a metal Group 4 of the Periodic Table and Q is a hydrocarbyl having from 1 to 20 carbon atom or a halogen, said polyethylene resin further comprising blue pigments and anti-UV additive, wherein the polyethylene resin has a polydispersity of about 3.