EP 4103633 A1 20221221 - POLYMER CONTAINING SILANE GROUPS
Title (en)
POLYMER CONTAINING SILANE GROUPS
Title (de)
SILANGRUPPEN-HALTIGES POLYMER
Title (fr)
POLYMÈRE CONTENANT DES GROUPES SILANE
Publication
Application
Priority
- EP 20156460 A 20200210
- EP 2021052559 W 20210203
Abstract (en)
[origin: WO2021160492A1] The present invention relates to a silane group-containing polymer obtained from reacting (i) an isocyanate group-containing polymer having an NCO content in the range of 0.3 to 4% by weight and a monomeric diisocyanate content of at most 0. 3 wt.% obtained from the reaction of at least one monomeric diisocyanate with at least one polyether polyol in a molar NCO/OH ratio of at least 3/1 and subsequent removal of a major part of the unreacted monomeric diisocyanates by means of a suitable separation process, (ii) with at least one amino-, mercapto- or hydroxysilane in a stoichiometric ratio of at least 1 mole of amino-, mercapto- or hydroxysilane per mole equivalent of isocyanate groups. The silane group-containing polymer is storage-stable, easy to handle at room temperature without dilution with plasticizers or solvents, and provides curable compositions with excellent processability, rapid curing, high strength with good elongation, and, in preferred embodiments, improved thermal stability. It is particularly suitable as a component of moisture-curable sealants, adhesives or coatings.
IPC 8 full level
C08G 18/10 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01); C09J 175/08 (2006.01)
CPC (source: EP KR US)
C08G 18/10 (2013.01 - EP KR); C08G 18/289 (2013.01 - EP KR); C08G 18/4825 (2013.01 - EP KR); C08G 18/4841 (2013.01 - EP KR); C08G 18/755 (2013.01 - EP KR); C08G 18/7671 (2013.01 - EP KR); C08L 75/08 (2013.01 - US); C09J 175/08 (2013.01 - EP KR)
Citation (search report)
See references of WO 2021160492A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021160492 A1 20210819; BR 112022015012 A2 20220920; CN 115551910 A 20221230; EP 4103633 A1 20221221; JP 2023512697 A 20230328; KR 20220139872 A 20221017; US 2023072857 A1 20230309
DOCDB simple family (application)
EP 2021052559 W 20210203; BR 112022015012 A 20210203; CN 202180013592 A 20210203; EP 21703265 A 20210203; JP 2022547779 A 20210203; KR 20227026634 A 20210203; US 202117792876 A 20210203