(19)
(11) EP 2 991 755 A1

(12)

(43) Date of publication:
09.03.2016 Bulletin 2016/10

(21) Application number: 14722970.2

(22) Date of filing: 15.04.2014
(51) International Patent Classification (IPC): 
B01J 3/04(2006.01)
C08G 69/00(2006.01)
(86) International application number:
PCT/US2014/034169
(87) International publication number:
WO 2014/179051 (06.11.2014 Gazette 2014/45)
(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: 01.05.2013 US 201361818042 P

(71) Applicant: Invista Technologies S.A R.L.
9000 St. Gallen (CH)

(72) Inventors:
  • KELMAN, Charles R.
    Hixson, Tennessee 37343 (US)
  • FORSYTH, Stewart
    Wilmington, Delaware 19808 (US)
  • SHRIDHARANI, Ketan G.
    Charlotte, North Carolina 28277 (US)

(74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB 
Speditionstraße 21
40221 Düsseldorf
40221 Düsseldorf (DE)

   


(54) DIRECT INJECTION OF ADDITIVES INTO AUTOCLAVES FOR POLYAMIDE POLYMERS PRODUCTION