B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 59/02 (2006.01) B29C 47/08 (2006.01)
Patent
CA 2683214
A building product which includes a hollow extrudate, unitary reinforcing ribs resisting collapse of the hollow extrudate and, in an embodiment, an exterior surface comprises a low gloss, textured pattern having a gloss level of less than about 50 on a 60° glossmeter, in which the textured pattern extends for about 2-20 feet. Methods and an apparatus for manufacturing such products are also provided by this invention.
Bosler Kenneth D.
Dunmire Mark J.
Gilbert Thomas C.
Petrucznik Christopher B.
Suchyna Mark G.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Certainteed Corporation
LandOfFree
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