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1. (WO1999006470) AQUEOUS POLYIMIDE PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1999/006470 International Application No.: PCT/AU1998/000402
Publication Date: 11.02.1999 International Filing Date: 29.05.1998
Chapter 2 Demand Filed: 12.02.1999
IPC:
C08G 73/10 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
73
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups C08G12/-C08G71/238
06
Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors
10
Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Applicants: LAYCOCK, Bronwyn, Glenice[AU/AU]; AU (UsOnly)
HAWTHORNE, David, Geoffrey[AU/AU]; AU (UsOnly)
HODGKIN, Jonathan, Howard[AU/AU]; AU (UsOnly)
MORTON, Trevor, Charles[AU/AU]; AU (UsOnly)
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION[AU/AU]; Limestone Avenue Campbell, ACT 2601, AU (AllExceptUS)
THE BOEING COMPANY[US/US]; 7755 East Marginal Way South Seattle, WA 98108, US (AllExceptUS)
Inventors: LAYCOCK, Bronwyn, Glenice; AU
HAWTHORNE, David, Geoffrey; AU
HODGKIN, Jonathan, Howard; AU
MORTON, Trevor, Charles; AU
Agent: CORBETT, Terence, G. ; Davies Collison Cave 1 Little Collins Street Melbourne, VIC 3000, AU
Priority Data:
PO 830630.07.1997AU
Title (EN) AQUEOUS POLYIMIDE PROCESS
(FR) PROCEDE DE PREPARATION A L'EAU DES POLYIMIDES
Abstract:
(EN) This invention provides a process for the preparation of an oligomeric polyamide comprising: mixing a tetracarboxylic acid, a dianhydride, a partially hydrolysed dianhydride or a mixture thereof with a diamine in a reaction medium comprising greater than 80 % by weight water, and heating mixture in said reaction medium at a temperature above 100 °C for a time sufficient to form said oligomeric polyimide.
(FR) La présente invention concerne un procédé permettant de préparer un polyamide oligomère. Ce procédé consiste à prendre un acide tétracarboxylique, un dianhydride, un dianhydride partiellement mélangé, ou un mélange, et à les mélanger avec une diamine dans un milieu de réaction constitué d'eau pour au moins 80% de sa masse. Le procédé consiste ensuite à chauffer le mélange dans le milieu de réaction considéré à une température de plus de 100 °C jusqu'à obtenir le polyimide oligomère considéré.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)