EP 0931886 A3 19990901 -
Publication
Application
Priority
- DK 3693 A 19930114
- EP 94904593 A 19940114
Abstract (en)
[origin: EP0931886A2] A method of producing a mineral fiber-insulating web comprises the steps of firstly producing a first non-wowen mineral fiber web. The first mineral fiber web contains mineral fibers arranged generally in the longitudinal direction of the mineral fiber web. Secondly, the first mineral fiber web is moved in the longitudinal direction of the web and folded parallel with the longitudinal direction and perpendicular to the transversal direction of the first mineral fiber web, so as to produce a second mineral fiber web comprising a central body and opposite surface layers sandwiching the central body, which central body contains mineral fibers arranged generally perpendicular to the longitudinal and transversal directions of the second mineral fiber web and which surface layers contain mineral fibers arranged generally in the transversal direction of the second mineral fiber web. Thirdly, a third non-wowen mineral fiber web being a mineral fiber web of a higher compactness as compared to the second mineral fiber web is produced and adjoin in facial contact with the second mineral fiber web for producing a fourth composite mineral fiber web which is thereupon cured. The method also optionally includes longitudinally compressing and/or transversally compressing the second mineral fiber web. The composite mineral fiber web may additionally be combined with additional mineral fiber webs or coverings for producing a composite mineral fiber web product which is cured in a single curing process.
IPC 1-7
IPC 8 full level
D04H 1/4209 (2012.01); D04H 1/4218 (2012.01); D04H 1/4226 (2012.01); D04H 1/593 (2012.01); D04H 1/645 (2012.01); D04H 1/70 (2012.01); D04H 1/732 (2012.01); D04H 1/736 (2012.01); D04H 1/74 (2006.01); D04H 13/00 (2006.01); E04B 1/76 (2006.01); E04B 1/78 (2006.01); E04C 2/16 (2006.01)
CPC (source: EP)
D04H 1/4209 (2013.01); D04H 1/4218 (2013.01); D04H 1/4226 (2013.01); D04H 1/593 (2013.01); D04H 1/645 (2013.01); D04H 1/732 (2013.01); D04H 1/736 (2013.01); D04H 1/74 (2013.01); D04H 13/00 (2013.01); E04B 1/7662 (2013.01); E04B 1/78 (2013.01); E04C 2/16 (2013.01); E04B 2001/7683 (2013.01)
Citation (search report)
- [Y] US 2546230 A 19510327 - PIERO MODIGLIANI
- [Y] US 4950355 A 19900821 - KLOSE GERD R [DE]
Designated contracting state (EPC)
AT BE DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9416163 A1 19940721; AT E185863 T1 19991115; AT E420254 T1 20090115; AU 5858094 A 19940815; BG 99828 A 19960329; CA 2153671 A1 19940721; CZ 179595 A3 19960313; DE 69421267 D1 19991125; DE 69421267 T2 20000210; DE 69435181 D1 20090226; DK 0931886 T3 20090414; DK 3693 D0 19930114; EP 0678137 A1 19951025; EP 0678137 B1 19991020; EP 0931886 A2 19990728; EP 0931886 A3 19990901; EP 0931886 B1 20090107; ES 2319701 T3 20090511; HU 9502121 D0 19950928; HU T74138 A 19961128; PL 309850 A1 19951113; RO 112771 B1 19971230; SK 89795 A3 19951108
DOCDB simple family (application)
DK 9400028 W 19940114; AT 94904593 T 19940114; AT 99106353 T 19940114; AU 5858094 A 19940114; BG 9982895 A 19950731; CA 2153671 A 19940114; CZ 179595 A 19940114; DE 69421267 T 19940114; DE 69435181 T 19940114; DK 3693 A 19930114; DK 99106353 T 19940114; EP 94904593 A 19940114; EP 99106353 A 19940114; ES 99106353 T 19940114; HU 9502121 A 19940114; PL 30985094 A 19940114; RO 9501306 A 19940114; SK 89795 A 19940114