Patent ID: 7915366
Filing Date: 2011-03-29
Classification: B29C,B29K,B32B,C08K,C08L,F16L,Y10T

Abstract:
1. A pipe composition consisting of: (a) 91 to 98 weight percent polyvinyl chloride; (b) 0.5 to 1.0 weight percent heat stabilizer; (c) 0.4 to 1.0 weight percent calcium stearate; (d) 0.9 to 1.6 weight percent wax; (e) 1.0 to 2.0 weight percent titanium dioxide; (f) 0.001 to 1.0 weight percent processing aid; (g) 0.1 to 1.9 weight percent of calcium carbonate; and (h) optionally, up to 2 weight percent of pigment, based upon total weight of the pipe composition.