EP0228401A1 - Anti-corrosive pigment composition and process for producing the same - Google Patents
Anti-corrosive pigment composition and process for producing the sameInfo
- Publication number
- EP0228401A1 EP0228401A1 EP86903537A EP86903537A EP0228401A1 EP 0228401 A1 EP0228401 A1 EP 0228401A1 EP 86903537 A EP86903537 A EP 86903537A EP 86903537 A EP86903537 A EP 86903537A EP 0228401 A1 EP0228401 A1 EP 0228401A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- parts
- pigment composition
- alumina hydrate
- composition according
- 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- Withdrawn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
- 239000000203 mixture Substances 0.000 title claims abstract description 76
- 239000000049 pigment Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims description 21
- 230000008569 process Effects 0.000 title claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 150000004679 hydroxides Chemical class 0.000 claims abstract description 13
- 150000002739 metals Chemical class 0.000 claims abstract description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 5
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 5
- 235000021317 phosphate Nutrition 0.000 claims abstract description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 12
- 239000011572 manganese Substances 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000004131 Bayer process Methods 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- -1 alkyl pyridinium Chemical compound 0.000 claims 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 238000004040 coloring Methods 0.000 abstract description 2
- 239000002966 varnish Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 3
- 238000000465 moulding Methods 0.000 abstract 1
- 239000011253 protective coating Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 13
- 229910021646 siderite Inorganic materials 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 239000003973 paint Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 229910001570 bauxite Inorganic materials 0.000 description 6
- 230000002633 protecting effect Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 235000002908 manganese Nutrition 0.000 description 4
- 230000037452 priming Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 3
- NSMXQKNUPPXBRG-SECBINFHSA-N (R)-lisofylline Chemical compound O=C1N(CCCC[C@H](O)C)C(=O)N(C)C2=C1N(C)C=N2 NSMXQKNUPPXBRG-SECBINFHSA-N 0.000 description 2
- QAQSNXHKHKONNS-UHFFFAOYSA-N 1-ethyl-2-hydroxy-4-methyl-6-oxopyridine-3-carboxamide Chemical compound CCN1C(O)=C(C(N)=O)C(C)=CC1=O QAQSNXHKHKONNS-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910001593 boehmite Inorganic materials 0.000 description 2
- 231100001010 corrosive Toxicity 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- WTEVQBCEXWBHNA-YFHOEESVSA-N neral Chemical compound CC(C)=CCC\C(C)=C/C=O WTEVQBCEXWBHNA-YFHOEESVSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 241001676573 Minium Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- IQBJFLXHQFMQRP-UHFFFAOYSA-K calcium;zinc;phosphate Chemical compound [Ca+2].[Zn+2].[O-]P([O-])([O-])=O IQBJFLXHQFMQRP-UHFFFAOYSA-K 0.000 description 1
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- WTEVQBCEXWBHNA-JXMROGBWSA-N citral A Natural products CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- VEVRNHHLCPGNDU-MUGJNUQGSA-O desmosine Chemical compound OC(=O)[C@@H](N)CCCC[N+]1=CC(CC[C@H](N)C(O)=O)=C(CCC[C@H](N)C(O)=O)C(CC[C@H](N)C(O)=O)=C1 VEVRNHHLCPGNDU-MUGJNUQGSA-O 0.000 description 1
- 229910052598 goethite Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000007785 strong electrolyte Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
Definitions
- Anti-corrosive pigment composition and process for producing the same
- the invention relates to an active anti-corrosive pigment composition which may be used for the purposes of dyestuff and varnish industry,-primarily for the production of dyestuffs and lutes, as well as corrosion protecting coatings. Further the invention relates to the process for • producing the active anti-corrosive pigment composition.
- the subject of the invention is an active corrosion protec ⁇ tive pigment composition which comprises: a/ alumina hydrate /Al/OH/.,/, b/ an amount of 10-100 parts by weight of at least one of the atoxic oxides, hydroxides, oxide hydroxides, carbonates or phosphates of amphoteric elements or metals of variable valency possessing less valency than the maximum - in case of aluminium the appropriate oxide of oxide hydroxide - related to lOO parts by weight of alumina hydrate c/ an amount of 0-40 parts by weight of.calcium and/or magnesium carbonate related to 100 parts by weight of alumina hydrate, and its grain size is less than 20 ,um.
- the object of the invention is providing a pigment compositio which meets the foregoing requirements and is usable in any of the conventional corrosion protecting coatings and can be applied to the surface to be protected by the usual pro ⁇ cedures, respectively.
- the active corrosion protective pigment composition comprises: a/ alumina hydrate /A1/0H/.,/, b/ an amount of 10-100 parts by weight of at least one of the amphoteric elements or atoxic oxides, hydroxides, oxide hydroxides, carbonates or phosphates of metals of variable valency possessing less valency than the maximum - in case of aluminium the appropriate oxide of oxide hyd- roxide - related to 100 parts by weight of alumina hydrate, c/ calcium and/or magnesium carbonate an amount of 0-40 parts by weight of related to 100 parts by weight of alumina hydrate, and its grain size is less than 20 ,um.
- atoxic compounds from the point of view of the invention compounds are meant which, applied in addition to alumina hydrate in a ratio usual in the surface protecting coatings
- the pigment composition ac ⁇ cording to the invention comprises advantageously alumina
- 15 amount may range up to 60 weight percent of the lot.
- the pigment composition according to the invention comprises advantageously as component b/ the above enumerated compound of metals which for* stable oxides, hydroxides and oxide hydroxides equally.
- metals are primarily aluminium, iro
- the pigment composition accor ⁇ ding to the invention may also comprise the above determined compounds of any other amphoteric elements, e.g. zinc or any other metal of variable valency, i.e. tin, cobalt or copper.
- the compounds enumerated as components b/ may be industrially produced meterials, possibly industrial by ⁇ products of wastes, however, they are preferably natural mi neral substances. The latter are of particular advantage if ' severeal compounds enumerated as components b/ are contained
- component b/ of the pigment composition according to the invention the following metarials have been considered to be of advantage: various kinds of bauxites, e.g. gibbsite-, goethite, hematite and particularly siderite bauxites, more ⁇ over, boehmite /AlO/OK//, magnetite /Fe.,0./, siderite /FeCO ⁇ / lepidocrocite / V-' -FeO/OH//, anganite / L ⁇ -Mn/OH/, rhodo- crosite .nCO-./, oyrolusite / .' -Mn0 / and zinc pho ⁇ nhate.
- gibbsite- gibbsite-, goethite, hematite and particularly siderite bauxites
- Natural mineral substances which comprise compounds of se ⁇ veral metals are also cinsidered to be advantageous. Con ⁇ sequently for instance, jacobsite / nFe-0./,franklinite /ZnFe-O./ or chromite /FeCrcard0 4 / may advantageously be used for components b/ of the pigment composition according to the invention.
- the pigment composition according to the invention comprises at least one of the compounds ranked into the lot of components b/. If there is only one compound as component b/ in the composition, its amount is prefe ⁇ rably about 10-50 parts by weight related to 100 parts by weight of alumina hydrate. Were there more compounds cons ⁇ tituting component b/, their amount should preferably come to 20-90 parts- by weight related to 100 parts by weight of alumina hydrate. If there are no restrictions from other consideration, e.g. stipulations for a certain colour, it is advantageous to use a mixture of several compounds for com- . ponent b/.
- a pigment composition could be of advantage which comprises also calcium and/or magnesium carbonate in an amount of up to 40 parts by weight related to 100 parts by weight of alumina hydrate, beside the com- ponents-a/ and b/ outlined above.
- These compounds are advan ⁇ tageously also natural mineral substances.
- the composition advantageously comprises limestone, dolomite, precipitated chalk or chalkstone or verious mistures of the substances enumerated.
- the grain size of the pigment composition is of importance from the point of view of the use of pigment composition according to the invention and the corrosion preventing effect of. coating materials comprising such pigment.
- the grain size of the pigment can be maximum 20 ,um. It is preferred, however, that the pigment comprises grains smal ⁇ ler than 10,urn, advantageously those smaller than- 5 ; m. Fine grains of this kind can, of course, be produced by grinding the substance under- appropriate conditions.
- the aim of the process according to the invention is assu ⁇ ring partly the grain size mentioned above, partly the perfect homogeneity of the components.
- the pig-ment composition according to the invention is made in a way that preground products having a grain size of subs ⁇ tantially 160-200 ,um are made from components b/ and c/, respectively, the preground products and the alumina hyd ⁇ rate are individually dried to contain a moisture amount less than 1 weight % each, then they are admixed in a ratio required, then homogenized and finally ground to a grain siz less than 20 ,um, advantageously less than 10 ,um, however, most preferably less than 5 ,um.
- addition of an anti-corrosive inhibitor to the . components during grin ⁇ ding may be advantageous.
- a 2-10 weight % aqueous solution of an alkyl pyridiniu ⁇ halide , preferably cetyl pyridinium bromide or some kind of other known anti- -corrosive inhibitor is sprayed into the substances.
- Pregrinding, drying, admeasuring and ho ogenization of the compoments may be carried out by the usual methods and in the usual equipments. Fine grinding, however, should expe ⁇ trans be performed in an air jet mill being advantageously provided ' with an air sizer, the procedure be advantageously carried out in a closed circuit. During fine grinding the components get perfectly mixed, therefore, there is no need for subsequent homogenization.
- the pigment composition of the invention may be used for making any kinds bf paints, lutes or other coating mate ⁇ rials. It can equally be used for oil-base or artificial
- the pigment according to the inven ⁇ tion is expediently used in an amount of about 50-85 weight percent for dyestuff compositions and in an amount of about 8-12 weight percent for lutes, however, ratios other than the former may also be adopted, if required.
- the pigment according to the inven ⁇ tion is expediently used in an amount of about 50-85 weight percent for dyestuff compositions and in an amount of about 8-12 weight percent for lutes, however, ratios other than the former may also be adopted, if required.
- the pigment composition according to the invention is easy and fast to get intermixed with dyestuffs and lutes.
- the advantage of the pigment composition according to the invention lies in its anti-corrosive feature. It not only
- the pigmen composition according to the invention has made the exis ⁇ ting corrosion layer on the treated surface cease within a comparatively short time and after treatment a surface 5 clean to metal was obtained. It ensues from this that ther is no need for properly cleaning the surface to be protec ⁇ ted before the treatment with the dyestuffs, lutes and oth coating materials containing the pigment composition accor ding to the invention. Thus corrosion prevention can be 0 ' solved with considerably less labour compared with the pro cedure applying the conventional anti-corrosive materials. Further advantage of the pigment composition according to the invention is that, provided no fillers or pigments of larger grain size are admixed, the coating material made
- the paints, lutes and other coating materials made by the use there of may be applied also under the strictest sti ⁇ pulations for health and could be applied by any means e.g spraying to the surface to be protected. Accordingly, the pigment composition according to the invention may be used
- a pigment composition is prepared for lutes and priming paints with the composition below:
- a pigment composition is prepared for lutes with the com- position below:
- a pigment composition is prepared for synthetic base pri ⁇ ming paints, spray lutes and also for the protection aga ⁇ inst strong electrolytes /e.g. sea water/, with the follo- wing composition:
- a pigment composition is prepared for priming paints, spary lutes in order to obtain smooth surface finis, with the following composition:
- Example 3 The components are processed by the method given in Example 3 and are formed to obtain the pigment with the exception that fine grinding is made until 5 ,um grain size is obtained.
- a pigment composition is prepared for the area of appli- cation mentioned is Example 4 with the following compo ⁇ sition:
- the components are processe ' d and formed to obtain the pigment by the method given in Example 4.
- a pigment composition is prepared for the purpose of light colour priming paints or lutes for use at moderately corro sive conditions with the following composition: 100 parts of alumina hydrate
- a pigment composition is prepared for priming paints with the following composition:
- a pigment composition is prepared with the following composition: 100 parts of alumina hydrate /50 parts therein are carbonized alumina hydrate/ 40 parts of zinc phosphate 40 parts of limestone . The components are processed and formed to obtain the pigment according to Example 3. Fine grinding is perfor ⁇ med till 5 ,um grain size is attained. A pigment appli ⁇ cable for the production of white and coloured paints, respectively, is obtained.
- a pigment composition is prepared for synthetic resin base light primers with the following composition:
Abstract
La compostion ci-décrite peut être utilisée dans l'industrie des colorants et des vernis, et en particulier pour la production de matières colorantes, de mastic et d'autres revêtements de protection contre la corrosion. La composition de pigments comprend (a) de l'hydrate d'alumine AlOH3, (b) une quantité de 10-100 parties en poids d'au moins un composant parmi des oxydes atoxiques, des hydroxydes, des hydroxydes d'oxyde, des carbonates ou des phosphates d'éléments amphotériques ou des métaux de valences variables possédant une valence inférieure au maximum - dans le cas de l'aluminium, on prend l'oxyde ou l'hydroxyde d'oxyde appropriés - par rapport à 100 parties en poids d'hydrate d'alumine, (c) une quantité de 0-40 parties en poids de calcium et/ou de carbonate de magnésium par rapport à 100 parties en poids d'hydrate d'alumine, et une granulométrie inférieure à 20 mum. Ladite composition de pigment est obtenue à partir de produits pré-moulus ayant une granulométrie de 160-200 mum essentiellement, à partir des composants (b) et (c), respectivement, en séchant les produits prémoulus et l'hydrate d'alumine individuellement jusqu'à ce que ladite composition présente une teneur en humidité inférieure à 1% en poids, en additionnant les produits selon les proportions demandées et en homogénéisant et moulant le tout jusqu'à obtenir une granulométrie inférieure à 20mum.The composition described herein can be used in the dye and varnish industry, and in particular for the production of coloring materials, putties and other protective coatings against corrosion. The pigment composition comprises (a) alumina hydrate AlOH3, (b) an amount of 10-100 parts by weight of at least one of atoxic oxides, hydroxides, oxide hydroxides, carbonates or phosphates of amphoteric elements or metals of variable valences having a valence lower than the maximum - in the case of aluminum, the appropriate oxide or oxide hydroxide is taken - relative to 100 parts by weight of alumina hydrate, (c) an amount of 0-40 parts by weight of calcium and/or magnesium carbonate relative to 100 parts by weight of alumina hydrate, and a particle size of less than 20 μm. Said pigment composition is obtained from pre-ground products having a particle size of 160-200 μm essentially, from components (b) and (c), respectively, by drying the pre-ground products and the alumina hydrate individually until said composition has a moisture content of less than 1% by weight, by adding the products according to the requested proportions and by homogenizing and molding everything until obtaining a particle size of less than 20mum.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU232785 | 1985-06-13 | ||
HU852327A HU198523B (en) | 1985-06-13 | 1985-06-13 | Active anticorrosion pigment composition for coating materials and process for its production |
HU163586 | 1986-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0228401A1 true EP0228401A1 (en) | 1987-07-15 |
Family
ID=10958851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86903537A Withdrawn EP0228401A1 (en) | 1985-06-13 | 1986-06-12 | Anti-corrosive pigment composition and process for producing the same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0228401A1 (en) |
JP (1) | JPS63500041A (en) |
AU (1) | AU592355B2 (en) |
HU (1) | HU198523B (en) |
WO (1) | WO1986007371A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3443883B2 (en) * | 1992-08-14 | 2003-09-08 | ソニー株式会社 | Recording medium storage cassette and cassette storage case |
NO312911B1 (en) * | 1994-12-22 | 2002-07-15 | Budenheim Rud A Oetker Chemie | Anti-corrosion pigment and its use |
DE19807808A1 (en) * | 1998-02-26 | 1999-09-02 | Budenheim Rud A Oetker Chemie | Anti-corrosive pigment and its use |
WO2021183602A1 (en) | 2020-03-10 | 2021-09-16 | Sasol (Usa) Corporation | Alumina modified with a short chain carboxylic acid for use as a coating and a method for producing the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4156613A (en) * | 1976-06-05 | 1979-05-29 | Bayer Aktiengesellschaft | Anti-corrosion pigments |
CH601109A5 (en) * | 1976-11-09 | 1978-06-30 | Alusuisse | |
DE2815306C2 (en) * | 1978-04-08 | 1983-11-10 | Bayer Ag, 5090 Leverkusen | Active anti-corrosive pigments based on calcium oxide, aluminum oxide and their use |
FR2470820A1 (en) * | 1979-11-30 | 1981-06-12 | Lafarge Sa | PROCESS FOR PRODUCING MINERAL FILLERS CONTAINING HYDRATED CALCIUM MONOCARBOALUMINATE |
-
1985
- 1985-06-13 HU HU852327A patent/HU198523B/en not_active IP Right Cessation
-
1986
- 1986-06-12 EP EP86903537A patent/EP0228401A1/en not_active Withdrawn
- 1986-06-12 AU AU59969/86A patent/AU592355B2/en not_active Ceased
- 1986-06-12 WO PCT/HU1986/000038 patent/WO1986007371A1/en not_active Application Discontinuation
- 1986-06-12 JP JP61503449A patent/JPS63500041A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO8607371A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU592355B2 (en) | 1990-01-11 |
AU5996986A (en) | 1987-01-07 |
HU198523B (en) | 1987-08-28 |
WO1986007371A1 (en) | 1986-12-18 |
JPS63500041A (en) | 1988-01-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1315956C (en) | Abrasion resistant coatings | |
US4419137A (en) | Corrosion inhibitors, method of producing and protective coatings containing same | |
US3852087A (en) | Composite pigment for blocking tannin | |
US6660380B1 (en) | Zinc oxide particles having suppressed surface activity and production and use thereof | |
DE99949226T1 (en) | POWDER COATING COMPOSITIONS | |
KR102282812B1 (en) | Production method for basic zinc cyanurate powder and production method for rust-preventive pigment composition | |
US4828617A (en) | Priming and body paint having an active anti-corrosive and surface cleaning effect | |
KR100907149B1 (en) | Edge cover paint and method for forming thick coating film on edge of steel material by using the paint | |
DE2245959A1 (en) | COMPOSITE PIGMENT AND METHOD FOR ITS MANUFACTURING | |
US3954482A (en) | Corrosion resistant coating material and method | |
AU592355B2 (en) | Anti-corrosive pigment composition | |
US5749946A (en) | Anticorrosive pigment preparation containing metal oxide-coated platelet adjuvant | |
EP0560784B2 (en) | Powder mixture for making an undercoating agent for steel surfaces | |
JPS60152574A (en) | Corrosion-resistant paint | |
JPS587463A (en) | Paint composition | |
US3514304A (en) | Corrosion-inhibiting titanium dioxide pigments | |
JPH01110567A (en) | Rust preventing pigment composition | |
HU198524B (en) | Tape with active surface-cleaning and anticorrosion effect | |
JPH0598194A (en) | Zinc-rich paint composition | |
JPS61179802A (en) | Treatment of metallic powder | |
CA1173983A (en) | Coating composition adapted for electric generators | |
DE1621504A1 (en) | Process and means for preventing corrosion of ferrous metal surfaces | |
JPS6338072B2 (en) | ||
AU2004261901A1 (en) | Additive for ship bottom paint and ship bottom paint comprising the same | |
JPS63270778A (en) | Electrodeposition coating composition |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE FR GB IT LU NL SE |
|
17P | Request for examination filed |
Effective date: 19870529 |
|
17Q | First examination report despatched |
Effective date: 19890503 |
|
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: 19900802 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CSILLAG, ZSOLT Inventor name: ZSEMBERY, LASZLO Inventor name: KIRALY, LASZLO Inventor name: SZENTGYOERGYI, GEZA Inventor name: KALMAN, TIBOR Inventor name: PATYI, LAJOS Inventor name: KONIORCZYK, BELA Inventor name: LEGAT, TIBOR |