(19)
(11) EP 2 864 282 A1

(12)

(43) Date of publication:
29.04.2015 Bulletin 2015/18

(21) Application number: 13806348.2

(22) Date of filing: 20.06.2013
(51) International Patent Classification (IPC): 
C07C 51/377(2006.01)
(86) International application number:
PCT/US2013/046900
(87) International publication number:
WO 2013/192453 (27.12.2013 Gazette 2013/52)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 20.06.2012 US 201213527799
15.03.2013 US 201361791407 P

(71) Applicant: OPX Biotechnologies, Inc.
Boulder, CO 80301 (US)

(72) Inventors:
  • TENGLER, Robert
    Longmont, CO 80504 (US)
  • DECOSTER, David
    Lyons, CO 80540-1916 (US)
  • HOYT, Sarah
    Boulder, CO 80305 (US)
  • ROACH, Shawn
    Longmont, CO 80501 (US)

(74) Representative: Kremer, Simon Mark et al
Mewburn Ellis LLP 33 Gutter Lane
London EC2V 8AS
London EC2V 8AS (GB)

   


(54) PURIFICATION OF 3-HYDROXYPROPIONIC ACID FROM CRUDE CELL BROTH AND DEHYDRATION TO ACRYLIC ACID