Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2009146277) BLENDED FLUOROPOLYMER COMPOSITIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2009/146277 International Application No.: PCT/US2009/044516
Publication Date: 03.12.2009 International Filing Date: 19.05.2009
Chapter 2 Demand Filed: 24.12.2009
IPC:
C08L 27/18 (2006.01) ,C08J 3/12 (2006.01) ,C09D 127/18 (2006.01) ,C09D 5/03 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27
Compositions 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
02
not modified by chemical after-treatment
12
containing fluorine atoms
18
Homopolymers or copolymers of tetrafluoroethene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3
Processes of treating or compounding macromolecular substances
12
Powdering or granulating
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
D
COATING 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
127
Coating 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
02
not modified by chemical after-treatment
12
containing fluorine atoms
18
Homopolymers or copolymers of tetrafluoroethene
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
D
COATING 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
5
Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
03
Powdery paints
Applicants:
HARVEY, Leonard, W. [US/US]; US (UsOnly)
COATES, Michael [US/US]; US (UsOnly)
WRIGHT, Julie, K. [GB/GB]; GB (UsOnly)
WHITFORD CORPORATION [US/US]; 47 Park Avenue Elverson, PA 19520, US (AllExceptUS)
Inventors:
HARVEY, Leonard, W.; US
COATES, Michael; US
WRIGHT, Julie, K.; GB
Agent:
COX, Adam, F.; Baker & Daniels LLP 111 East Wayne Street Suite 800 Fort Wayne, IN 46802, US
REES, David, Christopher; Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ, GB
Priority Data:
61/057,59730.05.2008US
61/100,31126.09.2008US
61/145,43316.01.2009US
61/145,87520.01.2009US
Title (EN) BLENDED FLUOROPOLYMER COMPOSITIONS
(FR) COMPOSITIONS DE POLYMÈRES FLUORÉS MÉLANGÉS
Abstract:
(EN) Blended fluoropolymer compositions are provided. In one embodiment, a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) that has been polymerized via a dispersion or emulsion polymerization process, and which has not been agglomerated, irradiated, or thermally degraded. The LPTFE may be in the form of an aqueous dispersion, having a mean particle size of less than 1.0 microns (μm), with the LPTFE having a first melt temperature (Tm) of 332° C or less. The second fluoropolymer may be a melt processible fluoropolymer (MPF), such as perfluoromethylvinvyl ether (MFA), fluorinated ethylene propylene (FEP), or perfluoropropylvinvyl ether (PFA), for example, in the form of an aqueous dispersion, and having a mean particle size of less than 1.0 microns (μm). Blending of the dispersions facilitates interaction of the LPTFE and MPF on a submicron level to facilitate intimate blending such that, when the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers. The blended fluoropolymer composition may be used to provide a coating having improved impermeability, stain resistance, abrasion resistance, smoothness, and higher contact angles.
(FR) L'invention porte sur des compositions de polymères fluorés mélangés. Dans un mode de réalisation, une dispersion liquide d'un premier polymère fluoré est mélangée avec une dispersion liquide d'un second polymère fluoré. Le premier polymère fluoré peut être le polytétrafluoroéthylène (PTFE), tel qu'un PTFE de masse moléculaire faible (LPTFE) qui a été polymérisé par un procédé de polymérisation de dispersion ou émulsion, et qui n'a pas été aggloméré, irradié ou thermiquement dégradé. Le LPTFE peut se trouver sous la forme d'une dispersion aqueuse, ayant une dimension moyenne de particule de moins de 1,0 micron (µm), le LTPFE ayant une première température de fusion (Tm) de 332°C ou moins. Le second polymère fluoré peut être un polymère fluoré pouvant être traité à l'état fondu (MPF), tel que le perfluorométhylvinyl éther (MFA), l'éthylène-propylène fluoré (FEP) ou le perfluoropropylvinyl éther (PFA), par exemple, sous la forme d'une dispersion aqueuse et ayant une dimension moyenne de particule de moins de 1,0 micron (µm). Le mélange des dispersions facilite l'interaction du LPTFE et du MPF à un niveau sous-micrométrique pour faciliter un mélange intime de telle sorte que, lorsque la composition de polymères fluorés mélangés est séchée, une structure cristalline représentant un véritable alliage des polymères fluorés est formée, ayant des caractéristiques de fusion qui diffèrent de celles des polymères fluorés individuels. La composition de polymères fluorés mélangés peut être utilisée pour fournir un revêtement ayant une imperméabilité améliorée, une résistance aux taches, une résistance à l'abrasion, un caractère lisse et des angles de contact supérieurs.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, 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 Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, 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)