Seamless tube useful to make roofing battens and related method

Details Seamless tube useful to make roofing battens and related method Seamless tube useful to make roofing battens and related method

E - Fixed Constructions

04

D

E04D 12/00 (2006.01) B29C 47/92 (2006.01) B29C 53/08 (2006.01) E04D 3/38 (2006.01) E04D 5/14 (2006.01)

Patent

CA 2070017

A seamless tube useful in making a roofing batten is extruded from a polymeric material consisting essentially of a major amount of poly(ethylene terephthalate) and a minor amount of at least one polyolefin, flattened in a vacuum sizer so as to define two plies, and milled and drawn so as to orient the tube longitudinally. As milled and drawn, the tube is oriented so as to have a tensile strength of at least about 25,000 psi in a longitudinal direction. The plies are punched so as to have holes therethrough at spaced intervals along the tube. When used to make a roofing batten to coact with conventional fasteners, such as roofing screws, the tube exhibits superior characteristics of split resistance and pull-through resistance.

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