WO1999059733A2 - Werkstoff und verfahren zum schutz von oberflächen bei der behandlung mit mechanischen, chemischen oder photochemischen mitteln - Google Patents
Werkstoff und verfahren zum schutz von oberflächen bei der behandlung mit mechanischen, chemischen oder photochemischen mitteln Download PDFInfo
- Publication number
- WO1999059733A2 WO1999059733A2 PCT/DE1999/001495 DE9901495W WO9959733A2 WO 1999059733 A2 WO1999059733 A2 WO 1999059733A2 DE 9901495 W DE9901495 W DE 9901495W WO 9959733 A2 WO9959733 A2 WO 9959733A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- components
- material according
- component
- mixed
- protected
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
- C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/34—Applying different liquids or other fluent materials simultaneously
-
- 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
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6552—Compounds of group C08G18/63
- C08G18/6558—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/657—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
-
- 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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
-
- 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
- C09D175/02—Polyureas
Definitions
- the invention relates to a material and a method for protecting surfaces during treatment with mechanical, chemical or photochemical agents.
- the surfaces which are not to be treated are sealed in a pore-tight manner by a protective layer which is applied to the surface to be treated on both sides. Only the surface to be treated is either not protected or is removed from the applied protective layer before the treatment process, so that the chemical or mechanical action can be guaranteed.
- the protective layer is removed after the respective treatment process.
- the subsequent step can then either be a further treatment of the same type using the same method (eg repeated etching or blasting) or a new different processing step (eg etching or blasting of a surface and subsequent painting process).
- Products containing various solvents such as e.g. B. bituminous products, co-polymers etc.
- pasty products or waxes or fats of various types are used. Outside the use of partly self-adhesive protective films of different chemical compositions should be mentioned.
- Suction systems using suitable filters must create a human-friendly working atmosphere.
- a time-consuming manufacturing step must be scheduled in the manufacturing process in order to accomplish the evaporation of the solvent.
- the regeneration of the solvents must also be carried out. Accordingly, there is also the need for environmentally friendly disposal of the regenerated solvent and the materials containing residual solvent.
- Pastose products and fats, waxes etc. need to be removed by thermal processes or rinsing processes, some of which in turn require the use of non-aqueous solvents. This makes the problem of environmental pollution evident.
- the invention provides a sprayable, a pourable and a spreadable variant of the material, so that all processing options are available.
- the invention encompasses aspects of the material quality, the properties of the sealing layer, the application of this material and the processing method.
- the subject matter of the invention is a chemical substrate which passes through during the application to the metal surface
- the preferred reaction is a polyaddition of one or more reactants.
- polyether alcohols have high Polyemeranteil as 'dispersions of polymeric urea (PHD) or styrene-Acry' lnitril- copolymer (SAN), polymethylene polyureas or NEN -melami-, diamines, polytetrahydrofuran, polybutadiene / mixtures of several of these substances, as well as pre-adducts and hybrids, WO j 99/597 / 3 ⁇ 3S PCT / DE99 / 01495
- Diols Diols, triols, in particular triols with exclusively primary hydroxyl groups and polyether alcohols based on these triols, organic acids containing aliphatic, aromatic or cycloaliphatic segments with at least two carboxyl groups.
- Tertiary aliphatic, cycloaliphatic, bicycloaliphatic and aromatic components are used as catalysts.
- Organometallic compounds and / or organic paroxides and / or ketones can also be used.
- the second starting material is a substance which, due to its chemical structure, is also capable of a polyaddition reaction by accepting the acidic proton and breaking down double bonds.
- This starting piece can be at least two functional aliphatic, aromatic organic compounds and / or pre-adducts of aliphatic and / or aromatic organic compounds with substances which contain an acidic proton.
- liquid components in the viscosity range from 25000 mPas to 50 mPas, preferably in the range from 400-8000 mPas at 25 ° C.
- moisture-extracting agents so-called aluminosilicates
- the content should be between 1.5% and 20%, preferably between 3 and 15%.
- polymers with different types of polymer formation reactions such as unsaturated polyesters, polycaroonates, polyethylene melts, etc., or thermoplastic polymers and thermoplastic polyurethanes are added to the polyaddition mixture.
- the proportion of these components can be 0.5% - 50%, preferably 5% - 30%.
- the components regardless of whether they are two-component or multi-component mixtures, must be reactive. They have different reactivity profiles.
- the reaction should start within 0.5 s to 30 s at an ambient temperature of 25 ° C with a sprayable variant and menhalo from 30 s to 30 min. with a pourable, as well as 5 mm. up to 180 min. with a spreadable variant.
- the polymer should have cured within 10 - 60 s.
- the pourable mixture should be within 5 mm. up to 90 mm. harden and the spreadable mixture within 15 mm. up to 420 mm. (7h).
- the polymer should have good elasticity in the fully reacted state.
- the elongation at break should be between 100% and 700%, but preferably between 250% and 600%.
- the Shore hardness of the polymer should be between 30-95 Shore A, preferably 50-92 Shore A.
- the polymer material must be resistant to chemical substances such as acids and bases and various mordants. This is
- the polymer should be able to be cut with laser beams. With this cutting technique, the polymer must be able to be cut behind the cutting jet without residue and / or with controlled adhesive thicknesses.
- the adhesion of the polymer material to the surface must not be lost in the contact area of the laser beam, especially at the interfaces of the remaining protective film, since chemical treatments in e.g. B. etching baths, the reduction in the adhesion in the contact area causes an underwashing of the polymer. Undermining of this type leads to inexact etching of the surface in the border area.
- the adhesion of the polymer should, according to the frequently handled pellet method, be an initial value in the normal case 20, - 800 gladly -1 and in the case of the application of this polymer material preferably 50 - 300 gladly " Ideally, it should be so large that the tensile strength and tear resistance of the polymer is so much greater than the peel force that the polymer can be removed from the surface in one operation without great effort and without great effort.
- the polymer can be removed from the metal surface without leaving any residue and that it can be WO 99/59733 ", -, -," -.
- PCT / DE99 / 01495 most cases can be processed without further treatment.
- the consistency of the starting materials must be chosen so that good mixing, which brings about optimal homogeneity of the polymer, can be ensured with simple processing machines.
- the polymer film In both the sprayable and the pourable variant, the polymer film must have a layer thickness of 50 microns (microns) to 500 microns (microns), preferably 100-300 microns (microns).
- the spreadable variant should be applied in a layer thickness of 25 - 250 microns (micron). Thinner or thicker layer thicknesses often only have consumption disadvantages without an improvement in the process.
- This polymer material can be used as an "in-situ" protective layer with self-adhesive properties on grease and corrosion-free surfaces for all applications in which changes in the surface quality and / or a reduction in the wall thicknesses are to be achieved.
- the advantage of the polymer material according to the invention is the fact that, in addition to good corrosion protection, it also has good chemical resistance to alkalis and acids. Due to a precisely set liability of the polymeric material can of treated, untreated (but dust and grease-free) or painted metal surfaces without leaving a residue by Pellvor réelle away 'will. To mention should be made of the fact that laser cuts can also be carried out cleanly.
- this material can in turn be installed as an environmentally friendly regenerate m new materials or can be fed into a briquetted form for thermal utilization due to its calorific value.
- This seal is particularly important for etching processes that are carried out in the aerospace industry or in the automotive industry or tool and machine construction on aluminum materials for the purpose of changing wall thicknesses without changing the structure of the aluminum material.
- the metal surface is repeatedly etched with warm caustic baths of sodium hydroxide solution with small amounts of additives at 80-85 ° C to the desired thickness. Special care must be taken to ensure that the polymer material adheres to the protected aluminum part in the area of the boundary, ie partial loosening of the protective layer leads to creeping under the polymer material and leads to an unacceptable, unclean cut on the etched edge.
- the polymer material according to the invention fulfills this requirement in all modifications.
- Temporary corrosion protection for vehicles (instead of wax treatment) of all kinds, e.g.
- Temporary protective film for electronic goods and apparatus as well as full material with acceptable properties or using electronic components such as lamps, capacitors and coils.
- Marking methods are used to standardize the polymer material.
- the raw materials are mixed homogeneously with one another in a low pressure or high pressure process using a suitable mixing head. It is of great importance that from the beginning to the end of the volume flow a constant mixing quality is achieved with a low air load.
- a mixing head with a downstream, rotating static mixer or a mixing head with static mixing by means of deflection channels is preferably used.
- the reaction mixture must be injected into the reaction chamber via suitable nozzles.
- Special round jet nozzles made of metal, ceramic or plastic with nozzle diameters of 0.2-1.5 mm have proven to be excellently suitable nozzles, operating in the component pressure range from 20 to 250 bar, preferably in the range from 50 to 150 bar was ⁇ en.
- Temperature control is extremely important when processing the components. In general, the processing temperatures are 30 - 60 ° C for two-component systems. In ⁇ en erf dungsgeABAen polymer materials, however, the most favorable processing temperature is in the 3ere ⁇ ch between 60 and 100 C C preferably between 65 and 80 ° C.
- the geometry of the mixing head and the nozzles as well as the discharge capacity of the metering pumps are designed so that the volume flow emerges turbulently from the mixing head. It is not necessary to mix it with air or other gases.
- This application includes all manual methods of applying the polymer material according to the invention, which are also known from paint processing. It is only necessary to pay attention to the different viscosities of the reaction mixture which is prepared from the starting reaction components by stirring. These viscosities increase with increasing reaction time. Therefore, special attention should be paid to the use of water-absorbing agents that prevent visual acuity reactions with the surrounding humidity.
- Usual hand tools for spreading the polymer material are brushes of all kinds, fur rollers, etc.
- the layer thicknesses to be applied are generally thinner than those in casting and spraying applications.
- a typical example of a spreadable P 'olyharn- material formulation consisting of the following components A and B, equal volumes of the two are gemisdht:
- the A component (polyol fraction) consists of:
- the B component (diisocyanate fraction) consists of: 0.87 mol dusocyanate;
- B component consisting of a prepolymer, which is synthesized from a polypropylene polyol and pure MDI in such a composition that the polypropylene glycol is in a 10-fold molar excess over the MDI.
- a free NCO content of the prepolymer is in the range of 16 (% (w / w)) results.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000549388A JP2002515518A (ja) | 1998-05-20 | 1999-05-18 | 機械的、化学的または光化学的加工手段による処理の間物体表面を保護するための物質及び方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998122810 DE19822810A1 (de) | 1998-05-20 | 1998-05-20 | Werkstoff und Verfahren zum Schutz von Oberflächen bei der Behandlung mit mechanischen, chemischen oder photochemischen Mitteln |
DE19822810.4 | 1998-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999059733A2 true WO1999059733A2 (de) | 1999-11-25 |
WO1999059733A3 WO1999059733A3 (de) | 2000-03-02 |
Family
ID=7868518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/001495 WO1999059733A2 (de) | 1998-05-20 | 1999-05-18 | Werkstoff und verfahren zum schutz von oberflächen bei der behandlung mit mechanischen, chemischen oder photochemischen mitteln |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2002515518A (de) |
DE (1) | DE19822810A1 (de) |
WO (1) | WO1999059733A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50201305D1 (de) | 2001-03-26 | 2004-11-18 | Mettler Toledo Gmbh | Waagschale zum schutz des wägeguts |
DE102007015795A1 (de) * | 2007-03-30 | 2008-10-02 | Airbus Deutschland Gmbh | Spanabhebendes Bearbeitungsverfahren und Halbzeug |
JP5852448B2 (ja) * | 2012-01-20 | 2016-02-03 | 太陽ホールディングス株式会社 | サンドブラストレジスト組成物、及びそれを用いた表面加工方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3948829A (en) * | 1973-04-05 | 1976-04-06 | Hitco | Strippable, thin, protective coating |
EP0081729A1 (de) * | 1981-12-10 | 1983-06-22 | Bayer Ag | Verwendung flüssiger, kalthärtender polyurethanbildender Komponenten für korrosionshemmende, verschleissschützende Beschichtungen von Metall- und Kunststoffflächen und -formkörpern sowie von Gestein und Beton |
EP0529839A1 (de) * | 1991-08-26 | 1993-03-03 | Texaco Chemical Company | Langsam härtende Polyharnstoff-Elastomere |
DE19711528A1 (de) * | 1996-03-26 | 1997-11-06 | Relius Coatings Gmbh & Co | Lösemittelfreier, zweikomponentiger Abziehlack für Metalloberflächen |
-
1998
- 1998-05-20 DE DE1998122810 patent/DE19822810A1/de not_active Ceased
-
1999
- 1999-05-18 JP JP2000549388A patent/JP2002515518A/ja active Pending
- 1999-05-18 WO PCT/DE1999/001495 patent/WO1999059733A2/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3948829A (en) * | 1973-04-05 | 1976-04-06 | Hitco | Strippable, thin, protective coating |
EP0081729A1 (de) * | 1981-12-10 | 1983-06-22 | Bayer Ag | Verwendung flüssiger, kalthärtender polyurethanbildender Komponenten für korrosionshemmende, verschleissschützende Beschichtungen von Metall- und Kunststoffflächen und -formkörpern sowie von Gestein und Beton |
EP0529839A1 (de) * | 1991-08-26 | 1993-03-03 | Texaco Chemical Company | Langsam härtende Polyharnstoff-Elastomere |
DE19711528A1 (de) * | 1996-03-26 | 1997-11-06 | Relius Coatings Gmbh & Co | Lösemittelfreier, zweikomponentiger Abziehlack für Metalloberflächen |
Also Published As
Publication number | Publication date |
---|---|
JP2002515518A (ja) | 2002-05-28 |
WO1999059733A3 (de) | 2000-03-02 |
DE19822810A1 (de) | 1999-11-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2844661C2 (de) | Verfahren zum Beschichten eines Substrates mit filmbildenden Feststoffen, verschäumbare wärmehärtbare Zusammensetzung und Vorrichtung zum Beschichten | |
EP0001581B1 (de) | Verfahren und Vorrichtung zum Mischen und Auftragen reaktionsfähiger Stoffe | |
DE2515775A1 (de) | Polymermassen, verfahren zu deren herstellung und deren verwendung | |
EP1436349B1 (de) | Verfahren zur herstellung von syntaktischen polyurethanen | |
AT396556B (de) | Verfahren zum beschichten eines substrats mit einem film einer beschichtungsmasse | |
EP2291441B1 (de) | Polyharnstoff-nanodispersionspolyole und verfahren zu ihrer herstellung | |
CA2341202A1 (en) | Bituminous polyurethane interpenetrating elastomeric network compositions | |
WO2006122730A1 (de) | Beschichtungsstoff für in-mould-coating (imc) auf der basis eines aminofunktionellen reaktionspartners für isocyanate und verfahren zur herstellung | |
DE10055559A1 (de) | UV-beständiger Beflockungsklebstoff für Polymere Substrate | |
DE19506255A1 (de) | Sandwich-Strukturelement aus Polyurethan und Verfahren zu dessen Herstellung | |
EP0940459B1 (de) | Beschichtungsmittel und Klebstoffe, ihre Verwendung und Verfahren zu ihrer Herstellung | |
DE1570548B2 (de) | Verfahren zur Herstellung von lagerbeständigen, in der Wärme zu Polyurethanen aushärtbaren Massen | |
EP0100507B1 (de) | Lagerstabile, hitzehärtbare Stoffmischungen aus Polyisocyanat und Polyol, Verfahren zu deren Herstellung und Verwendung | |
EP1207995A1 (de) | Verfahren zum herstellen von dreidimensionalen oder flächenartigen gebilden | |
WO1999059733A2 (de) | Werkstoff und verfahren zum schutz von oberflächen bei der behandlung mit mechanischen, chemischen oder photochemischen mitteln | |
DE2524351A1 (de) | Verfahren zur herstellung einer flexiblen polyurethan-beschichtung oder -folie | |
EP0513659B1 (de) | Verfahren zur Grundierung von Kunststoffsubstraten, Uberzugsmittel hierzu und dessen Verwendung | |
EP1309643B1 (de) | Verfahren zur erzeugung von polyurethan-partikeln | |
DE10322998A1 (de) | Verfahren und Vorrichtung zur Herstellung eines Zweikomponenten-Lackgemischs | |
DE3228670A1 (de) | Lagerstabile, hitzehaertbare stoffmischungen aus polyisocyanat und polyol, verfahren zu deren herstellung und verwendung | |
DE10060673A1 (de) | Abziehbare Folie für den Oberflächenschutz | |
DE3444293A1 (de) | Mittel zum reinigen von verarbeitungsanlagen fuer hochviskose reaktive mehrkomponentenmischungen | |
RU2233302C2 (ru) | Материал и способ защиты поверхностей при обработке механическими, химическими и фотохимическими средствами | |
EP1460095B1 (de) | Verwendung einer Polyurethanmasse für die Herstellung von Folien | |
WO1995023035A1 (de) | Beflockter artikel auf basis eines schaums oder einer vergussmasse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): BR CA CN IL JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): BR CA CN IL JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09700810 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
122 | Ep: pct application non-entry in european phase |