	US 12,240,932 B2
	Photocurable hydrophilic polymer, and coating composition, hydrophilic lubricating coating and article based on the same
Zengchao Tang, Suzhou (CN); and Jiehua Lei, Suzhou (CN)
Assigned to JIANGSU BIOSURF BIOTECH CO., LTD., Jiangsu (CN)
Appl. No. 17/265,009
Filed by JIANGSU BIOSURF BIOTECH CO., LTD., Suzhou (CN)
PCT Filed Jul. 4, 2019, PCT No. PCT/CN2019/094679 § 371(c)(1), (2) Date Feb. 1, 2021, PCT Pub. No. WO2020/024763, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 201810870339.5 (CN), filed on Aug. 2, 2018.
Prior Publication US 2021/0309781 A1, Oct. 7, 2021
Int. Cl. C08F 283/06 (2006.01); A61L 29/08 (2006.01); A61L 29/14 (2006.01); C09D 151/08 (2006.01)

CPC C08F 283/065 (2013.01) [A61L 29/085 (2013.01); A61L 29/14 (2013.01); C09D 151/08 (2013.01); A61L 2400/10 (2013.01)]

20 Claims

1. A photocurable hydrophilic polymer formed by copolymerization of a polymerizable photosensitive monomer and a hydrophilic monomer, wherein, the polymerizable photosensitive monomer comprises: 1) units containing a photosensitive structure; 2) units containing a tertiary amine co-initiator structure; 3) units containing an unsaturated bond, wherein the units containing the photosensitive structure are at least connected with the units containing the tertiary amine co-initiator structure through —OC(═O)—, and the units containing the unsaturated bond structure are connected with the units containing the photosensitive structure through the unit containing the tertiary amine co-initiator structure,

wherein the molar fraction of polymerizable photosensitive monomer in the photocurable hydrophilic polymer is 0.05-10%, and the number average molecular weight of photocurable hydrophilic polymer is 2,000-1,500,000.