EP 3004237 A1 20160413 - HIGHLY BRANCHED POLYALKOXYSILOXANE ADDITIVES FOR DIRT-REPELLENT SURFACE COATINGS
Title (en)
HIGHLY BRANCHED POLYALKOXYSILOXANE ADDITIVES FOR DIRT-REPELLENT SURFACE COATINGS
Title (de)
HOCHVERZWEIGTE POLYALKOXYSILOXANADDITIVE FÜR SCHMUTZABWEISENDE OBERFLÄCHENBESCHICHTUNGEN
Title (fr)
ADDITIFS DE POLYALCOXYSILOXANE TRÈS RAMIFIÉ POUR LES REVÊTEMENTS DE SURFACE ANTI-SALISSURES
Publication
Application
Priority
- EP 13169258 A 20130524
- EP 2014060694 W 20140523
- EP 14726353 A 20140523
Abstract (en)
[origin: WO2014187972A1] The invention relates to the use of a fluorine-free polyalkoxysiloxane, (a) having a degree of branching VG ≥ 0.4 calculated according to the following formula: VG = (2Q4 + Q3) / (2Q4 + 4/3Q3 + 2/3Q2) in which Qn is determined for n = 0 to 4 using 29Si-NMR, Qn stands in each case for n = 0 to 4 for the area below the 29Si-NMR signal of a (4-n)-times alkoxylated Si atom, and the sum of Qn for n = 0 to 4 is normed to 100%, and b) said polyalkoxysiloxane being produced using a non-hydrolytic polycondensation method, as an additive in coating agent compositions at an amount of 0.1 to 10 wt.% relating to the total weight of the coating agent composition, said coating agent composition containing at least one synthetic polymer selected from the group consisting of physically drying, self-crosslinking reactive or externally-crosslinking reactive synthetic polymers which differ from the fluorine-free polyalkoxysiloxane, and in the case of an externally-crosslinking reactive synthetic polymer, a crosslinking agent which differs from the fluorine-free polyalkoxysiloxane and from said externally-crosslinking synthetic polymer. The invention also relates to coating agent compositions containing aforementioned polysiloxanes as additives, to such additives in solid form, to a method for coating substrates, and to cured coatings which consist of said coating agent compositions.
IPC 8 full level
C08K 5/5415 (2006.01); C08L 83/04 (2006.01)
CPC (source: EP US)
C08K 5/5415 (2013.01 - EP US); C08L 83/04 (2013.01 - EP US); C09D 167/00 (2013.01 - US); C09D 183/06 (2013.01 - US)
Citation (search report)
See references of WO 2014187972A1
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 2014187972 A1 20141127; CN 105431482 A 20160323; CN 105431482 B 20180316; EP 3004237 A1 20160413; JP 2016526073 A 20160901; KR 20160013959 A 20160205; US 2016075918 A1 20160317
DOCDB simple family (application)
EP 2014060694 W 20140523; CN 201480041698 A 20140523; EP 14726353 A 20140523; JP 2016514438 A 20140523; KR 20157036320 A 20140523; US 201514950410 A 20151124