EP 3743456 A1 20201202 - RIGID FOAM WITH IMPROVED INSULATING POWER
Title (en)
RIGID FOAM WITH IMPROVED INSULATING POWER
Title (de)
HARTSCHAUM MIT VERBESSERTER ISOLIERLEISTUNG
Title (fr)
MOUSSE RIGIDE AVEC POUVOIR ISOLANT AMÉLIORÉ
Publication
Application
Priority
- FR 1800072 A 20180122
- EP 2019051491 W 20190122
Abstract (en)
[origin: WO2019141868A1] The present invention concerns a rigid foam or composition allowing a rigid foam to be obtained made from polyurethane and/or polyisocyanurate, said foam or composition comprising polyols selected from polyester polyols and polyether polyols; said polyols comprising: 5 to 50% of a polyester polyol A by weight relative to the total weight of the polyols; and a polyol B selected from polyester polyols B and polyether polyols B. The polyester polyol A is of general formula Rx-Ry-Z-Ry'-Rx' in which Z is a C3 to C8 alcohol sugar chosen from glycerol, sorbitol, erythritol, xylitol, araditol, ribitol, dulcitol, mannitol and volemitol. Ry and Ry' are diesters of formula -OOC-Cn-COO- in which n is between 2 and 34, and Rx and Rx' are identical or different C2 to C12 monoalcohols.
IPC 8 full level
C08G 18/76 (2006.01); C08G 18/16 (2006.01); C08G 18/42 (2006.01)
CPC (source: EP US)
C08G 18/163 (2013.01 - EP US); C08G 18/4241 (2013.01 - EP US); C08G 18/7664 (2013.01 - EP US); C08J 9/141 (2013.01 - US); C08G 2110/0025 (2021.01 - EP US); C08J 2203/14 (2013.01 - US); C08J 2205/10 (2013.01 - US)
Citation (search report)
See references of WO 2019141868A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019141868 A1 20190725; CA 3089173 A1 20190725; EP 3743456 A1 20201202; FR 3077075 A1 20190726; FR 3077075 B1 20200918; US 11718703 B2 20230808; US 2021246254 A1 20210812
DOCDB simple family (application)
EP 2019051491 W 20190122; CA 3089173 A 20190122; EP 19702358 A 20190122; FR 1800072 A 20180122; US 201916963347 A 20190122