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1. (WO1997017381) METHOD OF MANUFACTURING FLUOROPOLYMERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017381 International Application No.: PCT/US1996/017972
Publication Date: 15.05.1997 International Filing Date: 06.11.1996
Chapter 2 Demand Filed: 23.05.1997
IPC:
C08F 14/18 (2006.01) ,C08F 214/18 (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
14
Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
18
Monomers containing fluorine
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
214
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
18
Monomers containing fluorine
Applicants:
ALLIEDSIGNAL INC. [US/US]; 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
Inventors:
MCCARTHY, Thomas, F.; US
CHEN, Yan; US
RAINAL, Eric, J.; US
Agent:
CRISS, Roger, H.; AlliedSignal Inc. Law Dept., (C.A. McNally) 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
SZUCH, Colleen, D.; AlliedSignal Inc. Attn. C.A. McNally, Legal Dept. 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
Priority Data:
08/741,50031.10.1996US
60/007,28206.11.1995US
Title (EN) METHOD OF MANUFACTURING FLUOROPOLYMERS
(FR) PROCEDE DE FABRICATION DE POLYMERES FLUORES
Abstract:
(EN) The present invention provides a novel, optionally surfactant-free process for controlling particle number, particle size, and/or particle size distribution. The method of the invention also significantly improves monomer to polymer conversion rates, as well as increases the level of polymer solids which can be emulsified/dispersed in water without polymer flocculation. Specifically, the improved process provides an aqueous dispersion of up to about 48 % polymer solids in water in the absence of surfactant. The resulting fluoropolymers dispersions may be used in resin and coating applications.
(FR) L'invention concerne un nouveau procédé, éventuellement sans tensioactif, pour réguler le nombre de particules, leur taille et/ou la répartition granulométrique. Le procédé de l'invention améliore également de manière significative les taux de conversion de monomères en polymères et augmente également le taux des matières solides de polymère qui peuvent être émulsionnées et/ou dispersées dans l'eau sans floculation. De manière spécifique, le procédé amélioré permet de réaliser une dispersion aqueuse contenant jusqu'à 48 % de matières solides dans l'eau, en absence de tensioactif. Les dispersions de polymères fluorés résultantes peuvent être utilisées pour réaliser des résines ou des revêtements.
Designated States: CA, JP, KR, MX
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0865451CA2236694