Global Patent Index - EP 1080129 A1

EP 1080129 A1 2001-03-07 - CONTROL SYSTEM FOR CONTINUOUS POLYAMIDATION PROCESS

Title (en)

CONTROL SYSTEM FOR CONTINUOUS POLYAMIDATION PROCESS

Title (de)

REGELUNGSSYSTEM ZUR KONTINUIERLICHEN POLYAMID-HERSTELLUNG

Title (fr)

SYSTEME DE REGULATION D'UN PROCEDE DE POLYAMIDATION EN CONTINU

Publication

EP 1080129 A1 (EN)

Application

EP 99924508 A

Priority

  • US 9911577 W
  • US 8729298 P

Abstract (en)

[origin: WO9961510A1] An improved polyamidation system and control system for producing a polyamide from molten dicarboxylic acid monomer and molten diamine monomer. The polyamidation control system measures the molar ratio of the molten dicarboxylic acid monomer and molten diamine monomer with a partially polymerized mixture. A feed forward control algorithm is employed within the control system to determine the extent to which the ratio of the initial reactants must be altered prior to mixing in order to produce the resulting polyamide having stoichiometrically balanced molar ratio.

IPC 1-7 (main, further and additional classification)

C08G 69/28; B01J 19/00; C08G 69/32

IPC 8 full level (invention and additional information)

C08G 69/28 (2006.01); C08G 69/10 (2006.01); C08G 69/32 (2006.01); C08G 69/48 (2006.01)

CPC (invention and additional information)

C08G 69/10 (2013.01); C08G 69/48 (2013.01)

Citation (search report)

See references of WO 9961510A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9961510 A1 19991202; AU 4099099 A 19991213; AU 748194 B2 20020530; BR 9910791 A 20010213; CA 2332937 A1 19991202; CN 1310736 A 20010829; EE 200000695 A 20020415; EP 1080129 A1 20010307; HU 0101992 A2 20010928; HU 0101992 A3 20030128; IL 139815 D0 20020210; JP 2002516365 A 20020604; KR 20010070956 A 20010728; MX PA00011755 A 20020401; NO 20006013 A 20010125; NO 20006013 D0 20001128; PL 344401 A1 20011105; RU 2000133318 A 20021127; SK 17622000 A3 20010510; TR 200003533 T2 20010420; TW 442517 B 20010623

INPADOC legal status


2003-06-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021203

2001-04-04 [RIN1] INVENTOR (CORRECTION)

- Inventor name: BUSH, GREGORY, E.

2001-04-04 [RIN1] INVENTOR (CORRECTION)

- Inventor name: SCHWIER, CHRIS, E.

2001-04-04 [RIN1] INVENTOR (CORRECTION)

- Inventor name: LEMBCKE, ROBERT, M.

2001-04-04 [RIN1] INVENTOR (CORRECTION)

- Inventor name: COOK, STEVEN, W.

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001120

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

2001-03-07 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LV PAYMENT 20001120;SI PAYMENT 20001120