EP 3997141 A1 20220518 - PROCESS OF PREPARING ALLOPHANATE- AND/OR THIOALLOPHANATE GROUP-CONTAINING COMPOUNDS
Title (en)
PROCESS OF PREPARING ALLOPHANATE- AND/OR THIOALLOPHANATE GROUP-CONTAINING COMPOUNDS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ALLOPHANAT- UND/ODER THIOALLOPHANATGRUPPEN ENTHALTENDEN VERBINDUNGEN
Title (fr)
PROCÉDÉ DE FABRICATION DE COMPOSÉS CONTENANT DES GROUPES ALLOPHANATE ET/OU THIOALLOPHANATE
Publication
Application
Priority
- EP 19185846 A 20190711
- EP 2020068926 W 20200706
Abstract (en)
[origin: WO2021004980A1] The invention relates to a process of preparing allophanate- and/or thioallophanate group-containing compounds comprising the following steps: reacting A) at least one component having at least one uretdione group with B) at least one component having at least one hydroxyl and/or thiol group, in the presence C) of at least one catalyst, containing a structural element of the general formulae (I) and/or (II), wherein R1, R2, R3, R4, R5 and R6 independently of each other represent the same or different radicals meaning saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic, araliphatic or aromatic organic radicals with 1 to 18 carbon atoms that are substituted or unsubstituted and/or have heteroatoms in the chain, the radicals being capable of forming, even when combined with each other and optionally together with an additional heteroatom, rings with 3 to 8 carbon atoms that can optionally be further substituted, wherein R3, R4, R5 and R6 independently of each other also can represent hydrogen, and R7 represents hydrogen or a carboxylate anion (COO-), the at least one component A) having at least one uretdione group being polyaddition compounds A2) that can be obtained by reacting isocyanate-functional uretdione groups A1) with alcohols and/or amines that have a free isocyanate group content of less than 5 wt.% in their solvent-free form.
IPC 8 full level
C08G 18/02 (2006.01); C08G 18/20 (2006.01); C08G 18/79 (2006.01)
CPC (source: CN EP US)
C08G 18/027 (2013.01 - CN EP US); C08G 18/2027 (2013.01 - CN EP US); C08G 18/798 (2013.01 - CN EP); C08L 75/04 (2013.01 - CN US); C09D 175/04 (2013.01 - CN US); C08G 2150/00 (2013.01 - CN)
Citation (search report)
See references of WO 2021004980A1
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 2021004980 A1 20210114; CN 114080409 A 20220222; EP 3997141 A1 20220518; US 2022251280 A1 20220811
DOCDB simple family (application)
EP 2020068926 W 20200706; CN 202080050382 A 20200706; EP 20737421 A 20200706; US 202017624763 A 20200706