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1. (WO1998050439) PROCESS FOR BROMINATING POLYSTYRENIC RESINS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/050439 International Application No.: PCT/US1998/006996
Publication Date: 12.11.1998 International Filing Date: 07.04.1998
Chapter 2 Demand Filed: 03.12.1998
IPC:
C08F 8/20 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
8
Chemical modification by after-treatment
18
Introducing halogen atoms or halogen-containing groups
20
Halogenation
Applicants:
ALBEMARLE CORPORATION [US/US]; 451 Florida Street Baton Rouge, LA 70801-1765, US
Inventors:
DADGAR, Billie, B.; US
BALHOFF, Donald, E.; US
KOLICH, Charles, H.; US
AO, Meng-Sheng; US
LIN, Homer, C.; US
Agent:
PIPPENGER, Philip, M. ; Albemarle Corporation Patent and Trademark Division 451 Florida Street Baton Rouge, LA 70801-1765, US
Priority Data:
08/852,46207.05.1997US
Title (EN) PROCESS FOR BROMINATING POLYSTYRENIC RESINS
(FR) PROCEDE DE BROMATION DES RESINES DE POLYSTYRENE
Abstract:
(EN) This invention relates to a thermally stable brominated polystyrene having less than 100 ppm total Cl-, above 68 wt.% bromine and less than 6,000 ppm hydrolyzable halide. The brominated polystyrene exhibits little or no polymer cross-linking or chain cleavage relative to the starting polystyrene.
(FR) La présente invention concerne un polystyrène bromé thermiquement stable renfermant moins de 100 ppm de Cl- total, plus de 68 % en poids de brome et moins de 6000 ppm d'halogénure hydrolysable. Par rapport au polystyrène de départ, le polystyrène bromé présente peu ou pas de réticulation de polymère ou de clivage de chaîne.
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Designated States: CA, JP
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)