EP 3638717 A1 20200422 - SURFACE-MODIFIED GLASS FIBERS FOR REINFORCING CONCRETE, AND METHOD FOR PRODUCING SAME
Title (en)
SURFACE-MODIFIED GLASS FIBERS FOR REINFORCING CONCRETE, AND METHOD FOR PRODUCING SAME
Title (de)
OBERFLÄCHENMODIFIZIERTE GLASFASERN ZUR BETONVERSTÄRKUNG UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FIBRES DE VERRE À SURFACE MODIFIÉE POUR LE RENFORCEMENT DU BÉTON ET PROCÉDÉ POUR LEUR FABRICATION
Publication
Application
Priority
- DE 102017113205 A 20170615
- EP 2018065804 W 20180614
Abstract (en)
[origin: WO2018229186A1] The invention pertains to the field of chemistry and construction and relates to surface-modified glass fibers for reinforcing concrete, such as those which can be used in textile-reinforced concrete (textile concrete) for example. The aim of the invention is to provide surface-modified glass fibers for reinforcing concrete, said glass fibers being at least substantially protected from an exposure to alkali due to calcium hydroxide which is released during the cement reaction process and/or dissolution and leaching processes generated thereby. This is achieved by surface-modified glass fibers for reinforcing concrete, said glass fibers being at least partly coated at least with hydrolysis-stable and alkali-resistant cationic polyelectrolytes and/or a hydrolysis-stable and alkali-resistant cationic polyelectrolyte mixture and/or a hydrolysis-stable and alkali-resistant polyelectrolyte complex and coupled to the glass fiber surface via a (polyelectrolyte) complex formation process by means of an ionic bond, thereby forming the hydrolysis-stable and alkali-resistant polyelectrolyte complex A, wherein at least one additional (co)polymer at least partly coats the polyelectrolyte complex A and is coupled to the polyelectrolyte complex A via ionic and/or covalent bonds.
IPC 8 full level
C03C 25/1025 (2018.01); C03C 25/50 (2006.01); C08J 5/08 (2006.01); C08J 5/24 (2006.01); E04C 5/07 (2006.01)
CPC (source: EP US)
C03C 25/103 (2013.01 - EP US); C03C 25/16 (2013.01 - EP US); C03C 25/30 (2013.01 - EP US); C03C 25/323 (2013.01 - US); C03C 25/326 (2013.01 - EP US); C03C 25/36 (2013.01 - EP US); C03C 25/50 (2013.01 - EP US); C04B 14/44 (2013.01 - US); C04B 20/0068 (2013.01 - US); C04B 20/1033 (2013.01 - US); C04B 20/1037 (2013.01 - US); C08J 5/08 (2013.01 - EP); E04C 5/073 (2013.01 - EP US)
Citation (search report)
See references of WO 2018229186A1
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 2018229186 A1 20181220; CN 110753719 A 20200204; DE 102017113205 A1 20181220; EP 3638717 A1 20200422; US 2020216358 A1 20200709
DOCDB simple family (application)
EP 2018065804 W 20180614; CN 201880040170 A 20180614; DE 102017113205 A 20170615; EP 18733539 A 20180614; US 201816622487 A 20180614