EP 4255865 A1 20231011 - COMPOSITION FOR WATERTIGHT COVERINGS
Title (en)
COMPOSITION FOR WATERTIGHT COVERINGS
Title (de)
ZUSAMMENSETZUNG FÜR WASSERDICHTE ABDECKUNGEN
Title (fr)
COMPOSITION POUR REVÊTEMENTS ÉTANCHES À L'EAU
Publication
Application
Priority
- EP 20211265 A 20201202
- EP 2021083482 W 20211130
Abstract (en)
[origin: WO2022117534A1] The present invention relates to compositions for producing watertight coverings comprising A a powdery composition A, where the powdery composition A comprises: a.1 a powdery pozzolanic material comprising a powdery natural pozzolanic material in an amount of at least 30% by weight of the total amount of the pozzolanic material, a.2 powdery non-slaked lime, and a.3 at least one powdery aggregate; and B a liquid composition B comprising an aqueous polymer dispersion made of polymerized ethylenically unsaturated monomers M or a powdery composition B comprising a polymer powder obtained from the aqueous polymer dispersion, where the polymer of the aqueous polymer dispersion has a glass transition temperature Tg of at most +15°C as determined by the differential scanning calorimetry (DSC) method according to ISO 11357-2:2013, and e.g. in the range of -60 to +10°C, in particular in the range of -40 to 5°C, especially in the range of -30 to 0°C. The invention also relates to the use of said compositions for providing watertight coverings. Moreover, the invention relates to a method for providing watertight coverings which comprises mixing the composition A, the polymer of the composition B and water and applying the liquid mixture to a surface where a water-tight covering is required.
IPC 8 full level
C04B 26/06 (2006.01); C04B 28/10 (2006.01); C04B 28/18 (2006.01)
CPC (source: EP)
C04B 26/06 (2013.01); C04B 28/10 (2013.01); C04B 28/18 (2013.01); C04B 28/188 (2013.01); C04B 2111/00293 (2013.01); C04B 2111/00482 (2013.01)
Citation (search report)
See references of WO 2022117534A1
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 2022117534 A1 20220609; CN 116490479 A 20230725; EP 4255865 A1 20231011
DOCDB simple family (application)
EP 2021083482 W 20211130; CN 202180080765 A 20211130; EP 21816090 A 20211130