(19)
(11) EP 4 771 092 A1

(12)

(43) Date of publication:
08.07.2026 Bulletin 2026/28

(21) Application number: 24858863.4

(22) Date of filing: 20.08.2024
(51) International Patent Classification (IPC): 
C08K 3/38(2006.01)
B29C 41/00(2006.01)
B29C 70/88(2006.01)
B29K 105/00(2006.01)
B32B 27/18(2006.01)
C08J 9/00(2006.01)
H05K 9/00(2006.01)
B29B 7/00(2006.01)
B29C 70/62(2006.01)
B29D 7/01(2006.01)
B29K 105/18(2006.01)
B32B 27/32(2006.01)
C08K 9/02(2006.01)
(52) Cooperative Patent Classification (CPC):
B29D 7/01; B29K 2995/0011; B29K 2995/0013; H05K 9/0083; B29C 70/88; B29K 2105/002; B29K 2105/0047; C08K 2201/001; C08K 3/38; C08K 2003/385; C08K 9/02; C08K 2003/2227; C08K 3/22; C08K 2003/0887; C08J 5/18; C08J 9/28; C08J 9/0066; C08J 2323/06; C08J 9/009; C08J 9/0095; C08J 9/0014; C08J 2201/0522
(86) International application number:
PCT/IB2024/058096
(87) International publication number:
WO 2025/046394 (06.03.2025 Gazette 2025/10)
(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:
GE KH MA MD TN

(30) Priority: 30.08.2023 US 202363579584 P

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

(72) Inventors:
  • SOLOMONSON, Steven D.
    Saint Paul, Minnesota 55133-3427 (US)
  • DEHN, Derek J.
    Saint Paul, Minnesota 55133-3427 (US)
  • MISURA, Alexander
    Saint Paul, Minnesota 55133-3427 (US)
  • VEERARAGHAVAN, Badri
    Saint Paul, Minnesota 55133-3427 (US)
  • BADRI, Brinda B.
    Saint Paul, Minnesota 55133-3427 (US)
  • MUTHUKRISHNAN, Sankar
    Saint Paul, Minnesota 55133-3427 (US)
  • HILL, Charles
    Saint Paul, Minnesota 55133-3427 (US)
  • GHOSH, Dipankar
    Saint Paul, Minnesota 55133-3427 (US)

(74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB 
Siebertstraße 4
81675 München
81675 München (DE)

   


(54) SHEET COMPRISING A COMPOSITE MATERIAL OF A POLYMER, THERMALLY CONDUCTIVE PARTICLES AND ELECTROMAGNETICALLY ABSORBING PARTICLES AND PROCESSES FOR PRODUCING THE SAME