(19)
(11) EP 4 185 748 A1

(12)

(43) Date of publication:
31.05.2023 Bulletin 2023/22

(21) Application number: 21790548.8

(22) Date of filing: 03.09.2021
(51) International Patent Classification (IPC): 
D21C 9/00(2006.01)
D21H 17/67(2006.01)
D21H 17/00(2006.01)
D21H 21/22(2006.01)
D21H 23/10(2006.01)
 D21H 11/18(2006.01)
D21H 17/68(2006.01)
D21H 21/18(2006.01)
D21H 21/52(2006.01)
(52) Cooperative Patent Classification (CPC):
D21H 11/18; D21H 21/18; D21H 21/22; D21H 21/52; D21H 23/10; D21H 17/675; D21H 17/68; D21H 17/74; D21C 9/002
(86) International application number:
PCT/IB2021/000613
(87) International publication number:
WO 2022/053869 (17.03.2022 Gazette 2022/11)
(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: 11.09.2020 US 202063077167 P

(71) Applicant: FiberLean Technologies Limited
Par, Cornwall PL24 2SQ (GB)

(72) Inventors:
  • SKUSE, David
    Truro, Cornwall TR1 1BH (GB)
  • PHIPPS, Jonathan
    Gorran Haven, Cornwall PL25 3FS (GB)
  • REEVE-LARSON, Thomas
    St. Austin, Cornwall PL25 3FS (GB)

(74) Representative: Shelton, Ruth Emily et al
Venner Shipley LLP Byron House Cambridge Business Park Cowley Road
Cambridge CB4 0WZ
Cambridge CB4 0WZ (GB)

   


(54) FILLER COMPOSITIONS COMPRISING MICROFIBRILLATED CELLULOSE AND MICROPOROUS INORGANIC PARTICULATE MATERIAL COMPOSITES FOR PAPER AND PAPERBOARD APPLICATION WITH IMPROVED MECHANICAL PROPERTIES