US 12,187,914 B2
Easy to clean coating
Mi Zhou, Ningbo (CN); Neil Gregory Pschirer, Mannheim (DE); Hsin Tsao Tang, Taoyuan (TW); Ying Jung Chen, Taoyuan (TW); Sami Pirinen, Oulu (FI); Ari Karkkainen, Oulu (FI); Milja Hannu-Kuure, Oulu (FI); and Oskari Maekimartti, Oulu (FI)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/293,665
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Nov. 11, 2019, PCT No. PCT/EP2019/080795
§ 371(c)(1), (2) Date May 13, 2021,
PCT Pub. No. WO2020/099290, PCT Pub. Date May 22, 2020.
Claims priority of application No. 18205971 (EP), filed on Nov. 13, 2018.
Prior Publication US 2022/0010170 A1, Jan. 13, 2022
Int. Cl. C09D 183/08 (2006.01); C08G 65/336 (2006.01); C08G 77/24 (2006.01); C09D 5/00 (2006.01)
CPC C09D 183/08 (2013.01) [C08G 65/336 (2013.01); C08G 77/24 (2013.01); C09D 5/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. Process for preparing a thin film on a substrate, the process comprising the steps of
a) preparing a first precursor composition (FPC) in a first vessel, the preparation comprising the following steps:
a1) providing one or more metal or metalloid compound(s) according to the following formula (I)
M1(OR1)nR2m
wherein
M1 is a metal or metalloid with a valence z
R1 is each independently selected from a C1 to C10 organyl or organoheteryl group;
R2 is each independently selected from a C1 to C20 organyl, organoheteryl, fluorinated organyl or fluorinated organoheteryl group
n is 1 to z
m is z−1 to 0
n+m is z
a2) at least partial hydrolysation of the M1(OR1)-moieties and polymerizing the one or more metal or metalloid compound according to formula (I);
b) preparing a second precursor composition (SPC) in a second vessel, the preparation comprising the following steps:
b1) providing a fluoropolyether silane comprising hydrolysable groups (PFS);
c) mixing the first precursor composition (FPC) with the second precursor composition (SPC) in a vessel to obtain a combined composition;
d) forming a thin layer on the substrate;
f) curing the intermediate obtained in step d) thereby obtaining a thin film.