US 12,270,006 B2
Coating composition, method of making a hydrophilic coating on a substrate, and medical device comprising such coating
Johannes Wilhelmus Belt, Echt (NL)
Assigned to DSM IP ASSETS B.V., Heerlen (NL)
Appl. No. 17/925,425
Filed by DSM IP Assets B.V., Heerlen (NL)
PCT Filed May 11, 2021, PCT No. PCT/EP2021/062541
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2021/233743, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 20175279 (EP), filed on May 18, 2020.
Prior Publication US 2023/0183596 A1, Jun. 15, 2023
Int. Cl. C10M 169/04 (2006.01); A61L 29/08 (2006.01); C10M 107/42 (2006.01); C10M 107/44 (2006.01); C10M 129/24 (2006.01); C10M 145/38 (2006.01); C10M 161/00 (2006.01); C10M 177/00 (2006.01); C10N 40/00 (2006.01); C10N 50/00 (2006.01); C10N 70/00 (2006.01)
CPC C10M 169/044 (2013.01) [A61L 29/085 (2013.01); C10M 107/42 (2013.01); C10M 107/44 (2013.01); C10M 129/24 (2013.01); C10M 145/38 (2013.01); C10M 161/00 (2013.01); C10M 177/00 (2013.01); A61L 2400/10 (2013.01); A61L 2420/02 (2013.01); A61L 2420/06 (2013.01); C10M 2207/08 (2013.01); C10M 2209/109 (2013.01); C10M 2217/0285 (2013.01); C10M 2217/0453 (2013.01); C10M 2217/065 (2013.01); C10N 2040/50 (2020.05); C10N 2050/023 (2020.05); C10N 2070/00 (2013.01)] 18 Claims
 
1. A photo-curable hydrophilic coating composition comprising:
(a) a polymerizable compound of formula [1], wherein G is a residue of a hydrophobic hydroxy-functional oligomer; n is 1-10, each R1 independently is a residue of a C6-C20 aliphatic, cycloaliphatic, or aromatic hydrocarbon compound, and Z is a moiety having an unsaturated polymerizable group;

OG Complex Work Unit Chemistry
(b) a hydrophilic polymer;
(c) a photo-initiator;
(d) optionally one or more further components; and
(e) a solvent for components (a)-(c); wherein
the polymerizable compound of formula [1] is present in an amount of 2.0-30 mass % based on the total dry mass of the composition, and wherein
R1 is a residue of 2,4-toluene, 2,6-toluene, hexane, butane, cyclohexane or isophorone.