EP1366101A1 - 1k-polyurethaneinbrennlacke und deren verwendung - Google Patents
1k-polyurethaneinbrennlacke und deren verwendungInfo
- Publication number
- EP1366101A1 EP1366101A1 EP02719832A EP02719832A EP1366101A1 EP 1366101 A1 EP1366101 A1 EP 1366101A1 EP 02719832 A EP02719832 A EP 02719832A EP 02719832 A EP02719832 A EP 02719832A EP 1366101 A1 EP1366101 A1 EP 1366101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lacquer
- component
- esters
- clear
- pur
- 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- Withdrawn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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/222—Catalysts containing metal compounds metal compounds not provided for in groups C08G18/225 - C08G18/26
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8093—Compounds containing active methylene groups
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
Definitions
- the invention relates to IK polyurethane stoving lacquers whose polyisocyanate crosslinking agents are blocked with CH-acidic esters, in particular malonic esters.
- the stoving varnishes have a low stoving temperature. They are preferably used for painting plastic parts.
- One-component paints that are stable in storage can be mixed with malonic ester-blocked polyisocyanates and polymeric OH components (polyesters, polyacrylates, etc.). After application, these harden already at a baking temperature of 100 ° C, for example under baking conditions of 30 minutes. at 100 ° C. With other isocyanate blocking agents, e.g. B. butanone oxime, 1,2,4-triazole, diisopropylamine or 3,5-dimethylpyrazole, such a low baking temperature can hardly be achieved.
- isocyanate blocking agents e.g. B. butanone oxime, 1,2,4-triazole, diisopropylamine or 3,5-dimethylpyrazole
- thermoplastics for example for automotive parts such as bumpers, hubcaps or moldings, to be painted.
- polypropylene parts have been coated with an IC lacquer, which therefore requires an even lower baking temperature than 100 ° C.
- the object of the invention was therefore to find a catalyst with which 1-component PU stoving lacquers based on polyisocyanates which are blocked with CH-acidic esters cure even at stoving temperatures of ⁇ 100 ° C.
- the invention therefore relates to solvent-based or water-diluted 1K
- CH-acidic esters especially malonic esters, blocked polyisocyanates
- Essential to the invention is the presence of a tetravalent organic titanium compound as a catalyst, which can be processed as a one-component PU lacquer mixture consisting of CH-acidic esters, preferably with malonic esters, blocked polyisocyanates and organic polyhydroxyl compounds, even at a stoving temperature of 90 ° C./30 minute gives a sufficiently good cross-linking, with a baking temperature of 85 ° C / 30 min. also seems feasible.
- the titanium (IV) catalysts to be used according to the invention are added to the paint binder components mentioned, which are present in dissolved form.
- PUR lacquer binders are stable in storage and can be formulated, for example, for the following lacquer tasks: filler or primer, metal base lacquer, clear lacquer, pigmented top lacquer or water-diluted soft-feel lacquer. If necessary, you can use conventional additives and additives such as pigments,
- the titanium IV catalysts to be used according to the invention include, for example, tetra-n-butyl orthotitanate, tetraethyl titanate, tetramethyl titanate, titanium tetra (2-ethyl hexanoate), titanium triisopropylate chloride and cyclopentadienyl titanium trichloride and any mixtures of these titanium IV compounds into consideration. Tetra-n-butyl titanate is particularly preferred.
- the titanium IV catalysts are used in amounts of 0.5-4.0% by weight, preferably 1.5-2.5% by weight, based on the solids content of the paint binder components.
- the 1-K-PUR stoving enamels according to the invention can be used to coat substrates made from a wide variety of materials, e.g. for coating substrates made of metals, glass, minerals, ceramics, wood, paper, plastics such as polycarbonate, polymethyl methacrylate, polyamides, polypropylene etc.
- the invention is also explained on the basis of a catalyzed clear lacquer in comparison with other catalysts based on bismuth, tin and zirconium. It is shown that the curing of the non-catalyzed lacquer can be reduced from 100 ° C to at least 90 ° C and in tendency even to 85 ° C by using tetrabutyl titanate. This also makes it possible to paint polypropylene plastic parts with such one-component paints. Examples
- Desmodur ® W antrimerized, 80% in butyl diglycol acetate (BDGA), 246.0 1.0 NCO content: found 17.1%
- Tinuvin® 770 DF 2 3.7 -
- NMP N-methylpyrrolidone
- Tinuvin® 770 DF, DBP and IB (remaining amount) is added and the mixture is stirred for about 2 hours at 50 ° C.
- a storage-stable solution of a malonate-blocked polyisocyanate with the characteristics mentioned at the beginning is obtained.
- b) As reaction partners for the above malonic crosslinker is the OH-containing polyacrylate Desmophen ® A 665 (Bayer AG, 3% OH content, OH equivalent of the delivery form 567 g, 65% in butyl acetate / xylene 3: used 1).
- the above clear coat is mixed with 1% or 2%, based on the solids content of the binder, ie 0.41 g or 0.82 g per 100 g clear coat, of the respective catalyst. Using a doctor blade, 120 ⁇ m wet films are produced and baked in the oven under the following conditions.
- Example 3
- An unpainted mirror housing from Audi was cleaned with standard rinsing solutions and then rinsed with demineralized water and dried.
- the spray systems listed below were applied by spray application.
- a Sata spray gun was used.
- the nozzle diameter was 1.4 mm and a spray pressure of 2.5 bar was used.
- the 2K PUR filler commercially available from Du Pont (Wuppertal) was applied evenly with a lacquer film thickness of 30 to 40 ⁇ m and then 30 min. dried at 80 ° C.
- a coloring and effect-giving lacquer system (metallic basecoat, silver, also from Du Pont) was applied with a lacquer film thickness of 12 to 15 ⁇ m and 5 min. dried at 80 ° C.
- the third and last layer of lacquer was a clear lacquer, as described in Example 2, with the following lacquer composition: Parts by weight
- Desmophen® A 665 (see Example Ib) 31.2 Baysilone OL 17, 10% in xylene 0.4
- Tinuvin® 292 10% in xylene 4, 1
- the clear coat was applied with a coat film thickness of 40-50 ⁇ m and then for 30 minutes. dried at 80 ° C. The result was clear, high-gloss paint film surfaces with good curing and good paint properties.
- Values come about when a previously burned-in paint film is over-baked and must not be greater than 1.0.
- TBT Tetra-n-butyl orthotitanate
- TBT tetrabutyl titanate
- Lacquer film signals a usable good cross-linking, which is achieved neither by the zero value nor by the differently catalyzed films. Furthermore shows the
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)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10109228A DE10109228A1 (de) | 2001-02-26 | 2001-02-26 | 1K-Polyurethaneinbrennlacke und deren Verwendung |
DE10109228 | 2001-02-26 | ||
PCT/EP2002/001536 WO2002068494A1 (de) | 2001-02-26 | 2002-02-14 | 1k-polyurethaneinbrennlacke und deren verwendung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1366101A1 true EP1366101A1 (de) | 2003-12-03 |
Family
ID=7675544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02719832A Withdrawn EP1366101A1 (de) | 2001-02-26 | 2002-02-14 | 1k-polyurethaneinbrennlacke und deren verwendung |
Country Status (11)
Country | Link |
---|---|
US (1) | US6919417B2 (de) |
EP (1) | EP1366101A1 (de) |
JP (1) | JP2004528415A (de) |
KR (1) | KR20040030510A (de) |
CN (1) | CN1494562A (de) |
CA (1) | CA2439077A1 (de) |
DE (1) | DE10109228A1 (de) |
MX (1) | MXPA03007596A (de) |
PL (1) | PL363290A1 (de) |
WO (1) | WO2002068494A1 (de) |
ZA (1) | ZA200306565B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10308105A1 (de) * | 2003-02-26 | 2004-09-09 | Bayer Aktiengesellschaft | Polyurethan-Beschichtungssysteme |
DE10336883A1 (de) * | 2003-08-08 | 2005-03-10 | Basf Ag | Kunststoff, insbesondere Polyurethan enthaltend ein sterisch gehindertes, verestertes Amin |
US20050287349A1 (en) * | 2004-06-23 | 2005-12-29 | Yu Poli C | Method for coating coils |
JP5562267B2 (ja) * | 2010-02-08 | 2014-07-30 | 旭化成ケミカルズ株式会社 | ブロックポリイソシアネート組成物及びこれを含む塗料組成物 |
JP5572567B2 (ja) * | 2010-02-08 | 2014-08-13 | 旭化成ケミカルズ株式会社 | ブロックポリイソシアネート組成物を製造する方法 |
BR112012019717A2 (pt) * | 2010-02-08 | 2023-11-21 | Asahi Kasei Chemicals Corp | Composição de poliisocianato bloqueado, composição de revestimento, filme de revestimento, e, método para produzir uma composição de poliisocianato bloqueado |
JP5562271B2 (ja) * | 2010-06-04 | 2014-07-30 | 旭化成ケミカルズ株式会社 | ブロックポリイソシアネート組成物の製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3046409A1 (de) * | 1980-12-10 | 1982-07-15 | Bayer Ag, 5090 Leverkusen | Beschichtungsmittel und ein verfahren zur herstellung von ueberzuegen |
JPS5924771A (ja) * | 1982-08-02 | 1984-02-08 | Semedain Kk | 一液型室温硬化性シ−ラント組成物 |
US4727099A (en) * | 1986-08-15 | 1988-02-23 | E. I. Du Pont De Nemours And Company | Coating composition containing a reactive urethane component, a hydroxyl containing acrylic polymer having pendent ester groups and a metallic alkylate catalyst |
US4727100A (en) * | 1986-08-15 | 1988-02-23 | E. I. Du Pont De Nemours And Company | Coating composition containing a reactive urethane component an acrylic fatty acid drying oil resin and a metallic alkylate |
CA2138525C (en) * | 1993-04-29 | 2002-09-17 | Michihiro Ishiguro | Thermoplastic polyurethane composition |
US6103849A (en) * | 1994-06-27 | 2000-08-15 | Bayer Corporation | Storage stable, heat curable polyurethane compositions |
DE19813352A1 (de) * | 1998-03-26 | 1999-09-30 | Bayer Ag | Malonesterblockierte Polyisocyanate mit Formaldehyd gegen Thermovergilbung |
-
2001
- 2001-02-26 DE DE10109228A patent/DE10109228A1/de not_active Withdrawn
-
2002
- 2002-02-14 WO PCT/EP2002/001536 patent/WO2002068494A1/de active Application Filing
- 2002-02-14 CN CNA028055845A patent/CN1494562A/zh active Pending
- 2002-02-14 PL PL02363290A patent/PL363290A1/xx not_active Application Discontinuation
- 2002-02-14 EP EP02719832A patent/EP1366101A1/de not_active Withdrawn
- 2002-02-14 KR KR10-2003-7011138A patent/KR20040030510A/ko not_active Application Discontinuation
- 2002-02-14 JP JP2002568003A patent/JP2004528415A/ja active Pending
- 2002-02-14 CA CA 2439077 patent/CA2439077A1/en not_active Abandoned
- 2002-02-14 MX MXPA03007596A patent/MXPA03007596A/es active IP Right Grant
- 2002-02-20 US US10/079,661 patent/US6919417B2/en not_active Expired - Fee Related
-
2003
- 2003-08-22 ZA ZA200306565A patent/ZA200306565B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO02068494A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2004528415A (ja) | 2004-09-16 |
US20030055158A1 (en) | 2003-03-20 |
CA2439077A1 (en) | 2002-09-06 |
ZA200306565B (en) | 2004-08-23 |
CN1494562A (zh) | 2004-05-05 |
WO2002068494A1 (de) | 2002-09-06 |
PL363290A1 (en) | 2004-11-15 |
KR20040030510A (ko) | 2004-04-09 |
MXPA03007596A (es) | 2003-12-11 |
US6919417B2 (en) | 2005-07-19 |
DE10109228A1 (de) | 2002-09-05 |
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Legal Events
Date | Code | Title | Description |
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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 |
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17P | Request for examination filed |
Effective date: 20030926 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BAYER MATERIALSCIENCE AG |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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17Q | First examination report despatched |
Effective date: 20091026 |
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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 |
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18D | Application deemed to be withdrawn |
Effective date: 20100306 |