Title:
DIMENSIONALLY STABLE PLY SUITABLE FOR ROOFING WEBS OR ROOF-SEALING WEBS
Document Type and Number:
WIPO Patent Application WO2005042823
Kind Code:
A3
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.
Inventors:
GREISER WOLFGANG (DE)
SOUTHER ROGER (US)
WEITER BERTRAND (DE)
SOUTHER ROGER (US)
WEITER BERTRAND (DE)
Application Number:
PCT/IB2004/003515
Publication Date:
June 16, 2005
Filing Date:
October 25, 2004
Export Citation:
Assignee:
JOHNS MANVILLE EUROPE GMBH (DE)
GREISER WOLFGANG (DE)
SOUTHER ROGER (US)
WEITER BERTRAND (DE)
GREISER WOLFGANG (DE)
SOUTHER ROGER (US)
WEITER BERTRAND (DE)
International Classes:
D04H3/00; D04H3/011; D04H3/08; D04H3/10; D04H3/105; D04H3/11; D04H3/12; D04H3/14; D04H3/16; (IPC1-7): D04H3/00; D04H3/08; D04H3/12
Foreign References:
| US4714651A | 1987-12-22 | |||
| US4987027A | 1991-01-22 | |||
| EP0666349A1 | 1995-08-09 | |||
| US4429002A | 1984-01-31 | |||
| US6131351A | 2000-10-17 |
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