PHOTOCURABLE HYDROPHILIC POLYMER, COATING COMPOSITION BASED THEREON, HYDROPHILIC LUBRICANT COATING, AND PRODUCT

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(11)

EP 3 819 288 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 153(4) EPC

(15)	Correction information:
	Corrected version no 2 (W2 A1)

(48)	Corrigendum issued on:
	25.08.2021 Bulletin 2021/34

(43)	Date of publication:
	12.05.2021 Bulletin 2021/19

(21)	Application number: 19843268.4

(22)	Date of filing: 04.07.2019

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International Patent Classification (IPC):

C07C 229/12^(2006.01)
C07C 227/08^(2006.01)
C08F 220/36^(2006.01)
C08F 2/50^(2006.01)
C09D 133/02^(2006.01)
A61L 31/14^(2006.01)

C07C 229/16^(2006.01)
C08F 226/10^(2006.01)
C08F 220/06^(2006.01)
C09D 139/06^(2006.01)
A61L 31/10^(2006.01)

(86)	International application number:
	PCT/CN2019/094679

(87)	International publication number:
	WO 2020/024763 (06.02.2020 Gazette 2020/06)

(84)	Designated Contracting States:
	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 States:
	BA ME
	Designated Validation States:
	KH MA MD TN

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Priority:

02.08.2018 CN 201810870339

(71)	Applicant: Jiangsu Biosurf Biotech Co., Ltd.
	Jiangsu 215123 (CN)

(72)	Inventors:
	TANG, Zengchao Suzhou Industrial Park Jiangsu 215123 (CN) LEI, Jiehua Suzhou Industrial Park Jiangsu 215123 (CN)

(74)	Representative: Canzler & Bergmeier Patentanwälte Partnerschaft mbB
	Friedrich-Ebert-Straße 84 85055 Ingolstadt 85055 Ingolstadt (DE)

(54)	PHOTOCURABLE HYDROPHILIC POLYMER, COATING COMPOSITION BASED THEREON, HYDROPHILIC LUBRICANT COATING, AND PRODUCT

(57) Provided are a photocurable hydrophilic polymer, a coating composition based thereon, a hydrophilic lubricant coating, and a product. The photocurable hydrophilic polymer is formed by the copolymerization of a polymerizable photosensitive monomer having a specific structure and a hydrophilic monomer. The photocurable hydrophilic polymer has high photocuring efficiency, and the preparation method thereof is simple with high production efficiency and less environmental pollution. Further, there is basically no problem of gelation. By curing the coating composition, a hydrophilic coating having high firmness and lubricity and excellent biosafety and compatibility can be obtained.