Patent ID: 7842769
Filing Date: 2010-11-30
Classification: B29C,B29K,B32B,C08K,C08L,F16L,Y10T

Abstract:
1. A method of butt fusing a first extruded part and a second extruded part, the first extruded part and the second extruded part prepared from a composition comprising from 80 to 99.9 percent by weight polyvinyl chloride, the method comprising: heating and melting at least a portion of at least one of a first terminal edge of the first extruded part and a second terminal edge of the second extruded part; and butt fusing the first terminal edge of the first extruded part and the second terminal edge of the second extruded part by engaging the melted first terminal edge with the melted second terminal edge; wherein the butt fused joint area exhibits a tensile strength that is at least 50% of the tensile strength of the first extruded part or second extruded part, as measured by ASTM D638-2a.