EP1606363A1 - Composition de revetement pulverulente thermodurcissable - Google Patents
Composition de revetement pulverulente thermodurcissableInfo
- Publication number
- EP1606363A1 EP1606363A1 EP04721511A EP04721511A EP1606363A1 EP 1606363 A1 EP1606363 A1 EP 1606363A1 EP 04721511 A EP04721511 A EP 04721511A EP 04721511 A EP04721511 A EP 04721511A EP 1606363 A1 EP1606363 A1 EP 1606363A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition according
- polyester
- carboxylic acid
- hydroxyalkylamide
- coating composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000008199 coating composition Substances 0.000 title claims abstract description 18
- 229920000728 polyester Polymers 0.000 claims abstract description 16
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 claims abstract description 8
- 125000002843 carboxylic acid group Chemical group 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 4
- 239000001257 hydrogen Substances 0.000 claims 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims 2
- 125000004432 carbon atom Chemical group C* 0.000 claims 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 150000002431 hydrogen Chemical class 0.000 claims 2
- 125000000962 organic group Chemical group 0.000 claims 2
- 229920006395 saturated elastomer Polymers 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- PTMYSDNLUQKJQW-UHFFFAOYSA-N oxacyclotridecane-2,13-dione Chemical group O=C1CCCCCCCCCCC(=O)O1 PTMYSDNLUQKJQW-UHFFFAOYSA-N 0.000 claims 1
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- VTBBFMWGRDAUPQ-UHFFFAOYSA-N 3-ethyl-oxacyclotridecane-2,13-dione Chemical group C1CCCCCCCCC(CC)C(=O)OC1=O VTBBFMWGRDAUPQ-UHFFFAOYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- the invention relates to a heat-curable powder coating composition composed of polyesters containing carboxylic acid groups and ⁇ -hydroxyalkylamide. as a crosslinker, polyester being partially replaced by a carboxylic anhydride.
- Powder coating compositions which have a polyester with an acid number of 20-80 and a Tg of 30-85 ° and a ⁇ -hydroxyalkylamide as crosslinking agent are known in the prior art. Such a powder coating composition is described in EP 0 322 834 B1.
- This powder coating composition has great advantages over the powder coating compositions which contain triglycydilisocyanorate (TGIC) as a curing agent and has established itself in many areas, in particular for weather-resistant outdoor coatings.
- TGIC triglycydilisocyanorate
- it has been shown that such a powder coating composition is not yet sufficiently variable for special applications.
- such a powder coating composition with regard to the. Adjusting the degree of gloss of surfaces that have been coated with such a powder coating is not sufficiently flexible.
- the formulation according to the invention thus contains two sources of compounds containing carboxylic acid groups, both sources having a different acid number.
- the carboxylic anhydride has an acid number in the range from 100 to 500, preferably in the range from 250 to 350.
- a particularly preferred example here is dodecane-1, 10-dicarboxylic anhydride with an acid number of about 300.
- a powder coating composition based on such a formulation leads to a surface when applied to substrates, the degree of matting of which can be adjusted.
- the degree of matting can be controlled at an angle of incidence of 60 ° in the range from 10 to 70% reflection.
- EP 0 322 834 B1 is also referred to with regard to the selection of the polyesters containing carboxylic acid groups and of the ⁇ -hydroxyalkylamides which are suitable for the composition according to the invention. All the polyesters and ⁇ -hydroxyalkylamides explicitly mentioned there are also used together for the powder coating suitable setting.
- the powder coating composition may also contain other additives known per se from the prior art which are normally added to the powder coating, such as pigments, flow control agents, anti-bubble agents, powder flow additives and light stabilizers.
- the coating composition can typically contain a pigment in amounts of 1 to
- Suitable pigments can be inorganic or organic. Examples include titanium dioxide, ultramarine blue, carbon black, iron oxide, green chromium oxide and ferrite yellow.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
L'invention concerne une composition de revêtement pulvérulente thermodurcissable constituée de polyesters comportant des groupes d'acide carboxylique et d'un ss-hydroxyalkylamide en tant qu'agent de réticulation. Selon l'invention, ledit polyester peut partiellement être remplacé par un anhydride de l'acide carboxylique.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10313034 | 2003-03-24 | ||
| DE2003113034 DE10313034A1 (de) | 2003-03-24 | 2003-03-24 | Wärmehärtbare Pulverbeschichtungszusammensetzung |
| PCT/EP2004/002818 WO2004085559A1 (fr) | 2003-03-24 | 2004-03-18 | Composition de revetement pulverulente thermodurcissable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1606363A1 true EP1606363A1 (fr) | 2005-12-21 |
Family
ID=32980666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04721511A Withdrawn EP1606363A1 (fr) | 2003-03-24 | 2004-03-18 | Composition de revetement pulverulente thermodurcissable |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1606363A1 (fr) |
| DE (1) | DE10313034A1 (fr) |
| WO (1) | WO2004085559A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3402280C1 (de) * | 1984-01-24 | 1985-07-25 | Dynamit Nobel Ag, 5210 Troisdorf | Waermehaertbare Klebstoff- und Dichtungsmassen |
| US4727111A (en) * | 1986-09-29 | 1988-02-23 | Ppg Industries, Inc. | Powder coating compositions based on mixtures of acid group-containing materials and beta-hydroxyalkylamides |
| US4801680A (en) * | 1987-12-30 | 1989-01-31 | Ppg Industries, Inc. | Hydroxyalkylamide powder coating curing system |
-
2003
- 2003-03-24 DE DE2003113034 patent/DE10313034A1/de not_active Ceased
-
2004
- 2004-03-18 WO PCT/EP2004/002818 patent/WO2004085559A1/fr not_active Ceased
- 2004-03-18 EP EP04721511A patent/EP1606363A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004085559A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004085559A1 (fr) | 2004-10-07 |
| DE10313034A1 (de) | 2004-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20050922 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20060406 |