EP 3601396 A1 20200205 - PROCESS FOR PRODUCING POLYURETHANES EXHIBITING LOW BLOOMING EFFECTS AND GOOD LOW-TEMPERATURE FLEXIBILITY ON THE BASIS OF URETHANE-CONTAINING POLYMERIC HYDROXYL COMPOUNDS
Title (en)
PROCESS FOR PRODUCING POLYURETHANES EXHIBITING LOW BLOOMING EFFECTS AND GOOD LOW-TEMPERATURE FLEXIBILITY ON THE BASIS OF URETHANE-CONTAINING POLYMERIC HYDROXYL COMPOUNDS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON POLYURETHANEN MIT GERINGEN AUSBLÜHEFFEKTEN UND GUTER KÄLTEFLEXIBILITÄT AUF BASIS VON URETHAN-HALTIGEN POLYMEREN HYDROXYL-VERBINDUNGEN
Title (fr)
PROCÉDÉ DE PRÉPARATION DE POLYURÉTHANES PRÉSENTANT DE FAIBLES EFFETS D'EXSUDATION ET UNE BONNE SOUPLESSE À FROID, À BASE DE COMPOSÉS HYDROXYLÉS POLYMÈRES CONTENANT UN URÉTHANE
Publication
Application
Priority
- EP 17162042 A 20170321
- EP 2018057018 W 20180320
Abstract (en)
[origin: WO2018172355A1] The present invention relates to a process for producing a polyurethane comprising the reaction of a polyol composition (PZ) containing a polyol (P1) with a polyisocyanate composition (PIZ-1) containing a polyisocyanate (I1) to obtain a hydroxy-terminated prepolymer (PP1) and the reaction of the prepolymer (PP1) obtained with a polyisocyanate composition (PIZ-2) containing a polyisocyanate (I2) and at least one chain extender (K1) to obtain a polyurethane (PU1), wherein, in the reaction as per step (i), the molar ratio of the OH-groups of the components of the polyol composition (PZ) to the isocyanate groups of the components of the polyisocyanate composition (PIZ-1) is within the range from 1.3:1 to 10:1. The present invention futher relates to polyurethanes obtainable or obtained according to such a process and to the use of the polyurethanes for producing molded articles, adhesives, coatings, hoses, films, nonwoven articles or fibers.
IPC 8 full level
C08G 18/48 (2006.01); C08G 18/10 (2006.01); C08G 18/32 (2006.01); C08G 18/42 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01)
CPC (source: EP KR US)
C08G 18/10 (2013.01 - EP KR US); C08G 18/3203 (2013.01 - US); C08G 18/3206 (2013.01 - EP KR US); C08G 18/4238 (2013.01 - EP KR US); C08G 18/4854 (2013.01 - EP KR US); C08G 18/73 (2013.01 - EP KR US); C08G 18/757 (2013.01 - EP KR US); C08G 18/7621 (2013.01 - EP KR US); C08G 18/7671 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2018172355A1
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 2018172355 A1 20180927; BR 112019017493 A2 20200331; CN 110352205 A 20191018; CN 110352205 B 20220902; EP 3601396 A1 20200205; JP 2020512430 A 20200423; KR 20190126312 A 20191111; RU 2019133043 A 20210421; US 2020048396 A1 20200213
DOCDB simple family (application)
EP 2018057018 W 20180320; BR 112019017493 A 20180320; CN 201880014825 A 20180320; EP 18711128 A 20180320; JP 2019544883 A 20180320; KR 20197025549 A 20180320; RU 2019133043 A 20180320; US 201816484658 A 20180320