(19)
(11) EP 4 106 710 A1

(12)

(43) Date of publication:
28.12.2022 Bulletin 2022/52

(21) Application number: 21704959.2

(22) Date of filing: 11.02.2021
(51) International Patent Classification (IPC): 
A61K 6/20(2020.01)
A61K 6/40(2020.01)
A61K 6/76(2020.01)
A61K 6/887(2020.01)
 A61K 6/30(2020.01)
A61K 6/62(2020.01)
A61K 6/77(2020.01)
(52) Cooperative Patent Classification (CPC):
A61K 6/20; A61K 6/40; A61K 6/62; A61K 6/76; A61K 6/77
 
C-Sets:
  1. A61K 6/30, C08L 33/10;
  2. A61K 6/887, C08L 33/10;
(86) International application number:
PCT/IB2021/051124
(87) International publication number:
WO 2021/165795 (26.08.2021 Gazette 2021/34)
(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: 19.02.2020 EP 20158121

(71) Applicant: 3M Innovative Properties Company
Saint Paul, Minnesota 55133-3427 (US)

(72) Inventors:
  • CLAUSSEN, Kai U.
    41453 Neuss (DE)
  • LUDSTECK, Manfred
    41453 Neuss (DE)
  • HECHT, Reinhold
    41453 Neuss (DE)
  • HAEBERLEIN, Ingo R.
    41453 Neuss (DE)

(74) Representative: Brem, Roland 
3M Deutschland GmbH OIPC ESPE Platz
82229 Seefeld
82229 Seefeld (DE)

   


(54) ASCORBIC ACID COMPONENT FOR USE IN A METHOD OF TREATING THE SURFACE OF A PREPARED TOOTH