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1. (WO2007008887) METHOD FOR MAKING POLYBENZOBISOXAZOLE CONTAINING POLYMER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/008887 International Application No.: PCT/US2006/026872
Publication Date: 18.01.2007 International Filing Date: 12.07.2006
IPC:
C08G 73/00 (2006.01) ,C08G 73/22 (2006.01) ,C08G 69/32 (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
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
22
Polybenzoxazoles
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
69
Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
02
Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
26
derived from polyamines and polycarboxylic acids
32
from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
Applicants:
E. I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, Delaware 19898, US (AllExceptUS)
LEE, Kiu-Seung [US/US]; US (UsOnly)
Inventors:
LEE, Kiu-Seung; US
Agent:
GOLIAN, Andrew, G.; E. I. du Pont de Nemours and Company Legal Patent Records Center 4417 Lancaster Pike Wilmington, Delaware 19805, US
Priority Data:
11/180,23413.07.2005US
Title (EN) METHOD FOR MAKING POLYBENZOBISOXAZOLE CONTAINING POLYMER
(FR) PROCEDE DE PRODUCTION D'UN POLYMERE CONTENANT UN POLYBENZOBISOXAZOLE
Abstract:
(EN) A method of making polybenzobisoxazole containing polymer by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming a solidified polymer and heating the solidified polymer wherein ring closure occurs in the hydroxylated polymer.
(FR) L'invention concerne un procédé de production d'un polymère contenant un polybenzobisoxazole au moyen d'un polymère sans polybenzobisoxazole, lequel procédé consiste à hydroxyler ce polymère, à former un polymère solidifié puis à chauffer le polymère solidifié, la cyclisation ayant lieu dans le polymère hydroxylé.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXMX/a/2008/000399KR1020080031403EP1907447BRPI0613292-8JP2009501269CN101223212
CA2614967