EP 3947499 A1 20220209 - METHOD FOR PREPARING A CROSS-LINKABLE COMPOSITION
Title (en)
METHOD FOR PREPARING A CROSS-LINKABLE COMPOSITION
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER VERNETZBAREN ZUSAMMENSETZUNG
Title (fr)
PROCEDE DE PREPARATION DE COMPOSITION RETICULABLE
Publication
Application
Priority
- FR 1903604 A 20190404
- EP 2020059274 W 20200401
Abstract (en)
[origin: WO2020201364A1] The present invention relates to a method for preparing a cross-linkable composition comprising at least one silylated polymer P with alkoxysilane end groups and at least one catalytic system B, the method comprising the following steps: - a) preparing a silylated polymer P with alkoxysilane end groups comprising: - a-1) the polyaddition reaction between a composition of polyol(s) and a composition of polyisocyanate(s) in the presence of a catalyst A selected from the bismuth and/or zinc-based carboxylates in order to prepare a polymer with NCO end groups; - a-2) the reaction of the polymer with NCO end groups obtained in step a-1) with an organosilane compound having at least one reactive function with the -NCO function of the polymer with NCO end groups; - b) placing the silylated polymer P obtained in step a) in contact with a catalytic cross-linking system B which is a mixture of zinc-based carboxylate(s) and cyclic amidine, the method being carried out without any tin-based catalyst.
IPC 8 full level
C08G 18/10 (2006.01); C08G 18/20 (2006.01); C08G 18/22 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C09D 175/08 (2006.01); C09D 175/12 (2006.01); C09J 175/08 (2006.01); C09J 175/12 (2006.01)
CPC (source: EP US)
C08G 18/10 (2013.01 - EP US); C08G 18/20 (2013.01 - EP); C08G 18/222 (2013.01 - EP US); C08G 18/227 (2013.01 - EP US); C08G 18/289 (2013.01 - EP US); C08G 18/4825 (2013.01 - EP US); C08G 18/4866 (2013.01 - EP); C08G 18/755 (2013.01 - EP US); C09D 175/08 (2013.01 - EP); C09D 175/12 (2013.01 - EP); C09J 175/08 (2013.01 - EP); C09J 175/12 (2013.01 - EP); C08G 2170/00 (2013.01 - US); C08G 2190/00 (2013.01 - US)
Citation (search report)
See references of WO 2020201364A1
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 2020201364 A1 20201008; CN 113891902 A 20220104; EP 3947499 A1 20220209; FR 3094717 A1 20201009; FR 3094717 B1 20211001; US 2022220245 A1 20220714
DOCDB simple family (application)
EP 2020059274 W 20200401; CN 202080041199 A 20200401; EP 20713931 A 20200401; FR 1903604 A 20190404; US 202017600228 A 20200401