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1. (WO2017155713) CPVC PIPE WITH ULTRA HIGH HYDROSTATIC DESIGN BASIS

Pub. No.:    WO/2017/155713    International Application No.:    PCT/US2017/019572
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Feb 28 00:59:59 CET 2017
IPC: F16L 9/127
Applicants: LUBRIZOL ADVANCED MATERIALS, INC.
Inventors: SCHROEDER, John
GIOVANNITTI-JENSEN, Ann
JULIUS, Mark
NIE, Li
Title: CPVC PIPE WITH ULTRA HIGH HYDROSTATIC DESIGN BASIS
Abstract:
CPVC compositions having a combination level of additives (such as impact modifier, process aid, stabilizer and wax) will result in a CPVC pipe having a HDB classification of 1,600 psi. The CPVC pipe also has a cell class of at least 2-3-4-4-7. The CPVC compositions used to make the CPVC pipe also has a tensile strength greater than 3,700 psi, preferably greater than 4,050 psi and a modulus greater than 650 psi, preferably greater than 700 psi, both measured at 180°F. The CPVC compositions are substantially free of chlorinated polyethylene, that is, they have less than 1.0 part by weight per 100 parts by weight of CPVC resin.