(19)
(11) EP 4 529 550 A1

(12)

(43) Date of publication:
02.04.2025 Bulletin 2025/14

(21) Application number: 23733493.3

(22) Date of filing: 23.05.2023
(51) International Patent Classification (IPC): 
C08L 33/24(2006.01)
A61K 47/32(2006.01)
 C08L 33/26(2006.01)
(52) Cooperative Patent Classification (CPC):
C08L 33/24; C08L 33/26; C08L 89/00
 
C-Sets:
  1. C08L 89/00, C08L 33/24;
  2. C08L 89/00, C08L 33/26;
  3. C08F 220/58, C08F 220/54;
  4. C08F 220/36, C08F 220/54;
  5. C08F 220/56, C08F 220/54;
  6. C08F 220/54, C08F 220/54;
(86) International application number:
PCT/US2023/023212
(87) International publication number:
WO 2023/230046 (30.11.2023 Gazette 2023/48)
(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: 23.05.2022 US 202263344991 P

(71) Applicant: Surf Bio, Inc.
Palo Alto, CA 94301 (US)

(72) Inventor:
  • APPEL, Eric A.
    Palo Alto, California 94301 (US)

(74) Representative: Maiwald GmbH 
Elisenhof Elisenstraße 3
80335 München
80335 München (DE)

   


(54) POLYMER EXCIPIENTS COMPRISING N,N-DIETHYLACRYLAMIDE (DEA) FOR BIOPHARMACEUTICAL FORMULATIONS