(19)
(11) EP 4 543 954 A1

(12)

(43) Date of publication:
30.04.2025 Bulletin 2025/18

(21) Application number: 23736928.5

(22) Date of filing: 14.06.2023
(51) International Patent Classification (IPC): 
C08G 18/08(2006.01)
C08G 18/73(2006.01)
C08L 75/02(2006.01)
C09J 175/02(2006.01)
 C08G 18/38(2006.01)
C08G 18/79(2006.01)
C08L 75/10(2006.01)
C08G 18/10(2006.01)
(52) Cooperative Patent Classification (CPC):
C08G 18/0852; C08G 18/3821; C08G 18/73; C08G 18/792; C08G 18/10; C08L 75/02; C08L 75/10; C09J 175/02
 
C-Sets:
  1. C08G 18/10, C08G 18/73;
  2. C08G 18/10, C08G 18/792;
(86) International application number:
PCT/US2023/025294
(87) International publication number:
WO 2023/249854 (28.12.2023 Gazette 2023/52)
(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: 23.06.2022 US 202217847317
09.08.2022 EP 22189449

(71) Applicant: Covestro LLC
Pittsburgh, PA 15205 (US)

(72) Inventors:
  • ZELIZNIK, Raymond
    Pittsburgh, Pennsylvania 15205 (US)
  • GAMBINO, Charles A.
    Pittsburgh, Pennsylvania 15205 (US)
  • HAIDER, Karl W.
    Pittsburgh, Pennsylvania 15205 (US)
  • ROSSITTO, Frank C.
    Pittsburgh, Pennsylvania 15205 (US)

(74) Representative: Levpat 
c/o Covestro AG Gebäude K12
51365 Leverkusen
51365 Leverkusen (DE)

   


(54) LOW VISCOSITY ASPARTATE TERMINATED PREPOLYMERS FOR ADHESIVE APPLICATIONS