(19)
(11) EP 4 242 249 A8

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

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
08.11.2023 Bulletin 2023/45

(43) Date of publication:
13.09.2023 Bulletin 2023/37

(21) Application number: 21889121.6

(22) Date of filing: 28.10.2021
(51) International Patent Classification (IPC): 
C08G 65/328(2006.01)
C09K 3/18(2006.01)
 C09D 171/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C08G 65/336; C09D 5/16; C09D 7/65; C09D 183/00; C09K 3/18; C09D 171/00; C08G 65/007; C08G 2650/48
(86) International application number:
PCT/JP2021/039876
(87) International publication number:
WO 2022/097568 (12.05.2022 Gazette 2022/19)
(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

(30) Priority: 05.11.2020 JP 2020185144

(71) Applicant: Daikin Industries, Ltd.
Osaka-Shi, Osaka 530-0001 (JP)

(72) Inventors:
  • YAMASHITA, Tsuneo
    Osaka-shi, Osaka 530-0001 (JP)
  • MAEHIRA, Takeshi
    Osaka-shi, Osaka 530-0001 (JP)
  • MITSUHASHI, Hisashi
    Osaka-shi, Osaka 530-0001 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) SURFACE TREATMENT AGENT


(57) The present invention provides a fluoropolyether group-containing silane compound represented by the following formula (I): RF1-R4-(OR3)m-R5-SiR1nR23-n [wherein the symbols are as described in the specification].