(19)
(11) EP 4 017 861 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
16.08.2023 Bulletin 2023/33

(45) Mention of the grant of the patent:
03.05.2023 Bulletin 2023/18

(21) Application number: 20764183.8

(22) Date of filing: 10.08.2020
(51) International Patent Classification (IPC): 
C07F 7/08(2006.01)
 C07F 7/12(2006.01)
(52) Cooperative Patent Classification (CPC):
C07F 7/12; C07F 7/0896
(86) International application number:
PCT/US2020/045560
(87) International publication number:
WO 2021/034526 (25.02.2021 Gazette 2021/08)

(54)

PROCESS FOR PURIFYING SILICON COMPOUNDS

VERFAHREN ZUR REINIGUNG VON SILIZIUMVERBINDUNGEN

PROCÉDÉ DE PURIFICATION DE COMPOSÉS DE SILICIUM

(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

(30) Priority: 22.08.2019 US 201962890088 P

(43) Date of publication of application:
29.06.2022 Bulletin 2022/26

(73) Proprietor: Dow Silicones Corporation
Midland, MI 48686-0994 (US)

(72) Inventors:
  • HAGHPANAH, Reza
    Midland, MI 48686-0994 (US)
  • DEPIERRO, Michael
    Midland, MI 48686-0994 (US)
  • KETOLA, Barry
    Midland, MI 48686-0994 (US)

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


(56) References cited: : 
DE-A1-102007 048 937
JP-A- H1 036 377
 DE-A1-102007 050 199
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).