MX9604792A - Metodo para preparar composiciones de revestimiento en polvo. - Google Patents
Metodo para preparar composiciones de revestimiento en polvo.Info
- Publication number
- MX9604792A MX9604792A MX9604792A MX9604792A MX9604792A MX 9604792 A MX9604792 A MX 9604792A MX 9604792 A MX9604792 A MX 9604792A MX 9604792 A MX9604792 A MX 9604792A MX 9604792 A MX9604792 A MX 9604792A
- Authority
- MX
- Mexico
- Prior art keywords
- particles
- powder coating
- coating compositions
- preparing powder
- mixture
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/031—Powdery paints characterised by particle size or shape
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Se proporciona un método para preparar una composicion de revestimiento en polvo, que comprende: (a) formar una mezcla que comprende partículas solidas que incluyen una resina endurecible y un agente de reticulacion que es reactivo con la resina endurecible suspendida en una fase líquida acuosa que comprende agua y un agente tensioactivo; (b) triturar la mezcla a una temperatura de hasta aproximadamente 40 degree C para reducir el tamaño medio de las partículas hasta no más de aproximadamente 15 æm; (c) aglomerar las partículas para incrementar su tamaño medio de partículas hasta al menos aproximadamente 20 æm; (d) separar las partículas de la fase líquida acuosa; y (e) secar las partículas para formar un polvo.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22722194A | 1994-04-13 | 1994-04-13 | |
US227221 | 1994-04-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9604792A true MX9604792A (es) | 1998-08-30 |
MXPA96004792A MXPA96004792A (es) | 1998-11-12 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
WO1995028435A1 (en) | 1995-10-26 |
EP0755417A1 (en) | 1997-01-29 |
CA2187819A1 (en) | 1995-10-26 |
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