EP 3997161 A1 20220518 - METHOD FOR PRODUCING FLAMEPROOF PUR/PIR RIGID FOAMS
Title (en)
METHOD FOR PRODUCING FLAMEPROOF PUR/PIR RIGID FOAMS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON FLAMMWIDRIGEN PUR-/PIR-HARTSCHÄUMEN
Title (fr)
PROCÉDÉ DE PRODUCTION DE MOUSSES DURES IGNIFUGES DE PUR/PIR
Publication
Application
Priority
- EP 19185931 A 20190712
- EP 2020069002 W 20200706
Abstract (en)
[origin: CA3140032A1] The invention relates to a polyol formulation for producing flameproof polyurethane/polyisocyanate rigid foams (referred to individually or jointly in the following as "PUR/PIR rigid foams"), containing a polyester polyol having an OH number = 250 mg KOH/g, a functionality of 1.5 to 2.5 and a free glycol content with Mn < 150 g/mol of < 6 wt.%, a polyethylene glycol with an average molecular weight of < 700 g/mol and an average functionality of < 2.5 and specific polyethyleneglycol alkylphenyl ethers, and to methods for producing PUR/PIR rigid foams using said polyol formulation and to the PUR/PIR rigid foams obtained thereby.
IPC 8 full level
C08J 9/14 (2006.01); C08G 18/22 (2006.01); C08G 18/28 (2006.01); C08G 18/32 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C08J 9/00 (2006.01); C08K 3/016 (2018.01); C08G 101/00 (2006.01)
CPC (source: CN EP US)
C08G 18/225 (2013.01 - EP US); C08G 18/283 (2013.01 - EP US); C08G 18/3206 (2013.01 - EP US); C08G 18/4018 (2013.01 - CN EP US); C08G 18/4202 (2013.01 - CN EP US); C08G 18/4208 (2013.01 - EP US); C08G 18/4211 (2013.01 - EP US); C08G 18/425 (2013.01 - EP US); C08G 18/4833 (2013.01 - CN EP US); C08G 18/7664 (2013.01 - EP US); C08J 9/125 (2013.01 - US); C08J 9/141 (2013.01 - CN EP US); C08K 5/524 (2013.01 - EP US); C08G 2110/0025 (2021.01 - EP US); C08G 2110/005 (2021.01 - EP US); C08J 2203/10 (2013.01 - US); C08J 2203/14 (2013.01 - CN US); C08J 2375/06 (2013.01 - CN US); C08J 2375/08 (2013.01 - CN US); C08J 2471/08 (2013.01 - US)
Citation (search report)
See references of WO 2021008921A1
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)
EP 3763776 A1 20210113; CA 3140032 A1 20210121; CN 114080410 A 20220222; EP 3997161 A1 20220518; US 2022332881 A1 20221020; WO 2021008921 A1 20210121
DOCDB simple family (application)
EP 19185931 A 20190712; CA 3140032 A 20200706; CN 202080050824 A 20200706; EP 2020069002 W 20200706; EP 20737011 A 20200706; US 202017618135 A 20200706