Title:
PROCESS FOR PREPARING A BLOCK OF POLYURETHANE/POLYISOCYANURATE FOAM OF A SLAB FOR HEAT-INSULATING A TANK
Document Type and Number:
WIPO Patent Application WO/2020/148339
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a block of fibred polyurethane/polyisocyanurate foam, in which the expansion of the foam is constrained by the walls of a double-band laminator which forms a tunnel, the block of fibred polyurethane/polyisocyanurate foam being composed of cells which store a gas, advantageously with low thermal conductivity, and having a density less than 50 kg.m-3 with a fibre ratio Tf constituting at least 4% by mass of the fibred foam block, in which the fibre impregnation time ti is less than the cream time tc of the polyurethane/polyisocyanurate foam.
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Inventors:
DE COMBARIEU GUILLAUME (FR)
KITZMANN PATRICK (FR)
DEWOLF LAETITIA (FR)
KITZMANN PATRICK (FR)
DEWOLF LAETITIA (FR)
Application Number:
PCT/EP2020/050922
Publication Date:
July 23, 2020
Filing Date:
January 15, 2020
Export Citation:
Assignee:
GAZTRANSPORT ET TECHNIGAZ (FR)
International Classes:
C08G18/42; B63B35/00; C08G18/76; C08J5/08; C08J9/08; C08L75/06; F17C3/04
Foreign References:
| FR2882756A1 | 2006-09-08 | |||
| KR20000010021A | 2000-02-15 | |||
| FR2882755A1 | 2006-09-08 | |||
| KR20000010021A | 2000-02-15 |
Other References:
R. POMEROY, PERMEABILITY CHARACTERISATION OF CONTINUOUS FILAMENT MATS FOR RESIN TRANSFER MOULDING, 2009
"Kunststoffhandbuch, volume 7, Polyurethane", vol. 7, 1993, IMPRIMERIE CARI HANSER
"Kunststoffhandbuch, volume 7, Polyurethane", vol. 7, 1993, IMPRIMERIE CARI HANSER
Attorney, Agent or Firm:
LOYER & ABELLO (FR)
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