Plastic pipes and fittings for home and industrial use
AssigneeNoveon IP Holdings Corp.
InventorsGirish T. Dalal, Thomas H. Forsyth, Scott L. Cuson
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Abstract
Plastic pipes, fittings and other piping appurtenances prepared from CPVC formulations meeting requirements of ASTM-D 1784, cell class 23448-B, yet exhibiting suitable processability.
Claims14
An extruded pipe, or a molded or extruded fitting or other piping appurtenance prepared from a CPVC formulation exhibiting suitable processability and meeting the base resin, impact strength, heat deflection temperature, tensile strength, and tensile modulus requirements of ASTM-D 1784, cell class 23448-B, with the proviso that said CPVC formulation is substantially free of chlorinated polyethylene.
A CPVC formulation comprising:
- a CPVC resin having a chlorine content of at least 70% by weight and characterized by an inherent viscosity of about 0.60 to about 1.0, from about 3 to about 15 phr of a high rubber content MBS and/or ABS impact modifier, said formulation meeting the base resin, impact strength, heat deflection temperature, tensile strength, and tensile modulus requirements of ASTM-D 1784, cell class 23448-B, with the proviso that said CPVC formulation is substantially free of chlorinated polyethylene.
Dependencies are inferred from the claim text.