Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation is specified as weather proof – water...
Reexamination Certificate
2004-10-25
2010-10-12
Torres-Velazquez, Norca L (Department: 1786)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating or impregnation is specified as weather proof, water...
C442S401000, C442S402000, C442S408000, C264S288400, C264S289600, C264S479000
Reexamination Certificate
active
07811950
ABSTRACT:
A polyester filament nonwoven ply is suitable for roofing and roof-sealing webs and has a latent shrinkage force which counteracts drafting forces which may subsequently occur as the result of stresses or during thermal processing operations. The roofing webs thus remain dimensionally stable even when exposed to heat. The shrinkage force is obtained according to the claimed process by drafting the ply accordingly in a drafting mechanism arranged after a dryer.
REFERENCES:
patent: 4429002 (1984-01-01), Fukada et al.
patent: 5118550 (1992-06-01), Baravian et al.
patent: 6110846 (2000-08-01), Brzozowski et al.
patent: 6436510 (2002-08-01), Heidel et al.
patent: 6533987 (2003-03-01), Topolkaraev et al.
Greiser Wolfgang
Souther Roger
Weiter Bertrand
Johns Manville
Torres-Velazquez Norca L
Touslee Robert D.
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