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1. EP2021421 - CONCENTRATED FLUOROPOLYMER DISPERSIONS STABILIZED WITH ANIONIC POLYELECTROLYTE DISPERSING AGENTS

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Office European Patent Office
Application Number 07795364
Application Date 24.05.2007
Publication Number 2021421
Publication Date 11.02.2009
Publication Kind B1
IPC
C09D 127/18
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
127Coating compositions based on 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; Coating compositions based on derivatives of such polymers
02not modified by chemical after-treatment
12containing fluorine atoms
18Homopolymers or copolymers of tetrafluoroethene
C08L 27/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions of 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; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
12containing fluorine atoms
18Homopolymers or copolymers of tetrafluoroethene
CPC
C08L 27/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions of 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; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
12containing fluorine atoms
18Homopolymers or copolymers or tetrafluoroethene
C08K 3/24
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
3Use of inorganic substances as compounding ingredients
18Oxygen-containing compounds, e.g. metal carbonyls
24Acids; Salts thereof
C08L 1/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose or cellulose derivatives
08Cellulose derivatives
C08L 33/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
C08L 33/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
04Homopolymers or copolymers of esters
14of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
C08L 79/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
79Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
08Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Applicants DU PONT
Inventors CAVANAUGH ROBERT JOHN
JONES CLAY WOODWARD
Designated States
Priority Data 80971406 31.05.2006 US
Title
(DE) MITHILFE ANIONISCHER POLYELEKTROLYT-DISPERGIERUNGSMITTEL STABILISIERTE KONZENTRIERTE FLUORPOLYMERDISPERSIONEN
(EN) CONCENTRATED FLUOROPOLYMER DISPERSIONS STABILIZED WITH ANIONIC POLYELECTROLYTE DISPERSING AGENTS
(FR) DISPERSIONS CONCENTRÉES DE POLYMÈRES FLUORÉS STABILISÉES AVEC DES AGENTS DE DISPERSION A BASE DE POLYÉLECTROLYTES ANIONIQUES
Abstract
(EN)
An aqueous fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of about 10 to about 400 nm. The dispersion has a solids content of at least about 35 to about 70 wt % and comprises about 0.03 wt % to about 10 wt % anionic polyelectrolyte dispersing agent based on the weight of fluoropolymer solids. The dispersion has a Gel Time of at least about 100 seconds.

(FR)
L'invention concerne une dispersion aqueuse de polymère fluoré comprenant des particules de polymère fluoré ayant une taille moyenne de particules d'environ 10 à environ 400 nm. La dispersion présente une teneur en matières solides d'au moins environ 35 à environ 70 % en poids, et comprend environ 0,03 % en poids à environ 10 % en poids d'agent de dispersion à base de polyélectrolyte anionique, rapporté au poids du polymère fluoré solide. La dispersion présente un temps de gélification d'au moins 100 secondes environ.
Also published as
CN101454413
JP2009538968
WO/2007/142888
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