(19)
(11) EP 4 426 625 A2

(12)

(88) Date of publication A3:
15.06.2023

(43) Date of publication:
11.09.2024 Bulletin 2024/37

(21) Application number: 22890946.1

(22) Date of filing: 20.10.2022
(51) International Patent Classification (IPC): 
B65D 83/06(2006.01)
A61L 26/00(2006.01)
A61Q 19/00(2006.01)
C08L 83/02(2006.01)
 A61K 8/25(2006.01)
A61L 27/52(2006.01)
C08L 83/00(2006.01)
C08L 83/04(2006.01)
(52) Cooperative Patent Classification (CPC):
A61K 8/25; A61Q 15/00; A61K 8/022; A61K 8/0241; A61K 2800/412; A61K 2800/87; A61K 2800/623
(86) International application number:
PCT/US2022/078454
(87) International publication number:
WO 2023/081581 (11.05.2023 Gazette 2023/19)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 03.11.2021 US 202163263484 P
30.11.2021 US 202163264674 P
01.07.2022 US 202217810356
01.07.2022 WO PCT/US2022/073334
16.09.2022 US 202217932710

(71) Applicant: Chalkless, Inc.
Wilmington, MA 01887 (US)

(72) Inventor:
  • PIDHURNEY, James, M.
    Wilmington, MA 01887 (US)

(74) Representative: Murgitroyd & Company 
165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)

   


(54) PARTICULATE SILICA SILYLATE KIT FOR TREATMENT OF SURFACES FOR HYDROPHOBICITY CHARACTERISTICS