EP3740538A1 - Dispersionsfarbe - Google Patents
DispersionsfarbeInfo
- Publication number
- EP3740538A1 EP3740538A1 EP19700856.8A EP19700856A EP3740538A1 EP 3740538 A1 EP3740538 A1 EP 3740538A1 EP 19700856 A EP19700856 A EP 19700856A EP 3740538 A1 EP3740538 A1 EP 3740538A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- calcium carbonate
- emulsion paint
- spray
- carbonate particles
- weight
- 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- Withdrawn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
- 239000003973 paint Substances 0.000 title claims abstract description 223
- 239000006185 dispersion Substances 0.000 title claims abstract description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 195
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 81
- 239000002245 particle Substances 0.000 claims abstract description 65
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001694 spray drying Methods 0.000 claims abstract description 18
- 239000000839 emulsion Substances 0.000 claims description 104
- 239000011230 binding agent Substances 0.000 claims description 41
- 238000005299 abrasion Methods 0.000 claims description 32
- 239000003086 colorant Substances 0.000 claims description 18
- 239000000049 pigment Substances 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 17
- 238000005201 scrubbing Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 4
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 description 72
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 36
- 239000004408 titanium dioxide Substances 0.000 description 17
- 239000000203 mixture Substances 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000002270 dispersing agent Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 238000009991 scouring Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000002159 nanocrystal Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000000518 rheometry Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- -1 alkali metal salt Chemical class 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 150000004770 chalcogenides Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- FECNOIODIVNEKI-UHFFFAOYSA-N 2-[(2-aminobenzoyl)amino]benzoic acid Chemical class NC1=CC=CC=C1C(=O)NC1=CC=CC=C1C(O)=O FECNOIODIVNEKI-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical class [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 238000003991 Rietveld refinement Methods 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000009621 Solvay process Methods 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- SXQXMCWCWVCFPC-UHFFFAOYSA-N aluminum;potassium;dioxido(oxo)silane Chemical compound [Al+3].[K+].[O-][Si]([O-])=O.[O-][Si]([O-])=O SXQXMCWCWVCFPC-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003945 anionic surfactant Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 239000000981 basic dye Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910000011 cadmium carbonate Inorganic materials 0.000 description 1
- GKDXQAKPHKQZSC-UHFFFAOYSA-L cadmium(2+);carbonate Chemical compound [Cd+2].[O-]C([O-])=O GKDXQAKPHKQZSC-UHFFFAOYSA-L 0.000 description 1
- BYJADUSHMADYRW-UHFFFAOYSA-L cadmium(2+);sulfite Chemical compound [Cd+2].[O-]S([O-])=O BYJADUSHMADYRW-UHFFFAOYSA-L 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229940094522 laponite Drugs 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000002073 nanorod Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000001050 pharmacotherapy Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical class [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Chemical class 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical class [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/69—Particle size larger than 1000 nm
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
- C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
Definitions
- the present invention relates to an emulsion paint comprising at least water and spray-dried calcium carbonate particles.
- Fields of application of the emulsion paint include in particular their use as wall paint for the interior and the exterior (facade paint).
- Emulsion paints in particular plastic dispersion paints, are one
- paints based on dispersions in particular polymer dispersions (plastic, synthetic resin dispersions) and colorants, in particular pigments.
- the emulsion paints are often referred to as latex paints or summarily as binder colors.
- a paint is defined as "liquid to paste-like coating material, which is applied primarily by brushing or rolling". The paints give after the order on a
- Zinc chromates is already known.
- US 2010/0263576 A1 discloses a dry, aggregated
- Calcium carbonate comprising calcium carbonate and at least one inorganic binder, the dry calcium carbonate aggregating a middle one
- Particle size (D50) of at least 5 pm A composition containing such a calcium carbonate is also described. Further, a product such as a paint and methods for producing a product containing such an aggregated calcium carbonate are shown.
- As calcium carbonate both ground calcium carbonate (GCC) and precipitated calcium carbonate (PCC) can be used.
- the preparation of the aggregated calcium carbonate may optionally after a
- Preferred amount ranges for the inorganic binder are not mentioned.
- the resulting aggregated calcium carbonates are tested in paints having a pigment volume concentration (PVK) of 65% or 45%.
- the comparative materials used are fine GCC, fine spray-dried GCC with an average particle size of 0.7 ⁇ m and coarse-grained GCC with an average particle size of 12 to 14 ⁇ m.
- the weight fraction of the binder, based on GCC, is between 2.4% by weight and 9.1% by weight for the aggregated calcium carbonates.
- Sheen values are 1.5 to 3.8 (PVK 65%, Table I), 2.0 to 25.7 (PVK 65%, Table II), or 3.4 to 6.4 (PVK 45%, Table III) and an opacity of 97.34 to 98.24 (PVK 65%, Table I), 97.28 to 98.82 (PVK 65%, Table II) or 95.06 to 95, 39 (PVK 45%, Table III).
- Dispersion colors are avoided as possible.
- WO 2014/202836 A1 relates to a composition containing precipitated
- the composition comprises a plurality of necessarily spherical granules having an average particle diameter of 1 to 50 ⁇ mh, which are formed from precipitated primary calcium carbonate particles having a particle size of 30 to 60 nm, wherein at least a portion of the primary particles can be released by deagglomeration in aqueous suspension.
- the composition can for
- Pulp sizing agents are used.
- the document further relates to a method for storing precipitated calcium carbonate particles with a mean diameter in the nanometer range.
- the preparation of the calcium carbonate primary particles is preferably carried out by spray drying.
- Emulsion paints in particular wall paints, are not described in the document.
- step b the slurry from step a. spray-dried to form the granules containing calcium carbonate.
- the median diameter of the submicron calcium carbonate should preferably be in the range of about 0.01 to about 0.5 pm.
- the aim of the document is the use of calcium carbonate particles as crystallization seeds in combination with a precipitating builder to accelerate the removal of soluble calcium ions from wash water.
- Emulsion paints in particular wall paints, are not mentioned in the document.
- Sheen values and abrasiveness or wet abrasion are not mentioned in the document.
- EP 2 796 412 A1 describes a process for the preparation of nanoscale calcium carbonate particles by spray drying, comprising the steps of
- the resulting calcium carbonate comprises nanoparticles smaller than 200 nm, in particular nanorods with a length of about 100 nm and a width of about 50 nm.
- the reference teaches that calcium carbonate is often used in the manufacture of plastics, rubbers, adhesives, sealants, papers, inks, wraps, paints, cosmetics and pharmaceuticals. By modifying the surface of the calcium carbonate nanoparticles, it would be possible to control the theological and mechanical properties of the material. Furthermore, in plastic materials, the nanoscale calcium carbonate can be used as a pigment and replace up to 25% of the commonly used pigments.
- Emulsion paints in particular wall paints, are not mentioned in the document. Likewise, there is no information on Sheen values and abrasiveness or wet abrasion.
- WO 2013/050495 A1 relates to precipitated calcium carbonate particles in the form of nanofibers or chain-like agglomerates. Furthermore, the concerns
- Spray drying is mentioned as one of several ways of drying the precipitated calcium carbonate particles (see page 10, lines 3-9).
- Exemplary aqueous emulsion paints include 5.0 or 6.0 weight percent titanium dioxide and 15.0 weight percent or 6 weight percent to 14 weight percent PCC (see page 13, Table).
- the aim is to produce watery, matt or silky-glossy paints
- the publication contains information on the abrasiveness (see page 14, lines 30 to 33, Tables 1-4). It is noticeable, however, that the "inventive" examples of this publication have a better opacity, but a poorer sheen and usually also a worse abrasiveness.
- the contrast ratio (KV, the values are between 97.0% and 98.9%), the whiteness Ry (the stated values are between 91, 4% and 94.1%) and the wet resistance (the stated values) were investigated between 50.4 g / m 2 and 79.9 g / m 2 ) and the sheen (the values stated are between 4% and 9%).
- an emulsion paint comprising at least water and spray-dried calcium carbonate particles, which is characterized in that the calcium carbonate particles were obtained by spray-drying a suspension of precipitated calcium carbonate particles, it is surprisingly possible to obtain a better one Disperse paint accessible, which is particularly suitable as a wall paint for indoor and outdoor use.
- Paint has a comparatively low sheen. Furthermore, the paint obtainable by applying the emulsion paint has high whiteness and high hiding power. In addition, the abrasiveness and wet abrasion of the paint obtainable by applying the emulsion paint is very low.
- Titanium dioxide as a pigment, significantly reduced
- the subject of the present invention is accordingly a
- Emulsion paint comprising at least water and spray-dried
- the water contained in the dispersion paint according to the invention preferably serves as a solvent or dispersant for in the
- Emulsion paint is preferably at least 10.0 wt .-%, preferably at least 20.0 wt.%, Particularly preferably at least 30.0 wt .-%, advantageously at least 35.0 wt .-%, in particular at least 50.0 wt. %. In each case based on the total weight of the emulsion paint.
- solvents and / or dispersants may be added to the dispersion paint of the invention as needed.
- the content of these other solvents and / or dispersants in the emulsion paint can basically be chosen freely. According to a first preferred
- Embodiment of the present invention it is preferably in the range of 1, 0 wt .-% to 20.0 wt .-%, in particular 3.0 wt .-% to 15.0 wt .-%, each based on the total weight of the emulsion paint ,
- the content of further solvents and / or dispersants in the emulsion paint is less than 5.0% by weight, preferably less than 2.5% by weight, more preferably less than 1.0% by weight. %, suitably less than 0.5 wt .-%, in particular less than 0.1 wt .-%.
- the emulsion paint contains no further solvents and / or dispersants.
- the dispersion paint according to the invention expediently contains at least one binder, preferably at least one organic binder and / or at least one inorganic binder, in particular at least one organic binder.
- Binder in the context of the present invention refers to products which combine the same or different materials.
- the setting is preferably carried out by physically drying the emulsion paint.
- Organic binders refer to the
- Chalcogenides e.g., CO, CO2, CS2
- their derivatives e.g., H2CO3, KSCN
- salt and metallic carbides e.g., H2CO3, KSCN
- salt and metallic carbides e.g., H2CO3, KSCN
- Chalcogenides eg CO, CO2, CS2
- H2CO3, KSCN the salt-like and metallic carbides as well as the metal carbonyls all Carbon-free compounds and the chemical elements including carbon and fullerene.
- Binders comprise plastic dispersions which preferably contain suspensions of finely divided 0.1 to a few ⁇ m polymer particles in water.
- the solids content is preferably 40% to 60%.
- Protective colloids may include binder properties, in particular rheology, storage stability, minimum film forming temperature (MFT), water absorption, chalking, alkali and saponification resistance, and
- Pigment binding capacity can be adjusted. Furthermore, in particular for
- binders include vinyl acetate homopolymers, vinyl acetate-acrylate copolymers, vinyl acetate-ethylene copolymers, vinyl acetate-maleate copolymers, vinyl acetate-versatate copolymers, vinyl acetate-versatate-acrylate copolymers, vinyl acetate-vinyl chloride-ethene copolymers, vinyl propionate copolymers. Homopolymers, vinyl propionate-acrylate copolymers, styrene-acrylate copolymers and acrylate homopolymers, copolymers and terpolymers.
- the binder content of the emulsion paint can basically be chosen freely. It is preferably in the range of 0.5% by weight to 30.0% by weight, preferably in the range of 0.5% by weight to 17.5% by weight, particularly preferably in the range of 0.5 Wt .-% to 10.0 wt .-%. For particularly preferred
- the binder content is in the range of 0.5 wt .-% to 1, 5 wt .-%, each based on the
- the binder content is in the range of 2.0 wt .-% to 3.0 wt .-%, each based on the
- the binder content is in the range of 4.5 wt .-% to 6.0 wt .-%, each based on the
- Wall paints especially for scrub resistant interior paints, is the
- Binder content in the range of 5.0 wt .-% to 8.0 wt .-%, each based on the total weight of the emulsion paint.
- the binder content is in the range from 5.0% by weight to 7.0% by weight, based in each case on the Total weight of the emulsion paint.
- Wall paints especially for scrub resistant interior paints, is the
- Binder content in the range of 6.0 wt .-% to 9.0 wt .-%, each based on the total weight of the emulsion paint.
- the emulsion paint according to the invention contains at least spray-dried calcium carbonate particles.
- the amount of the spray-dried calcium carbonate particles in the dispersion paint can basically be chosen freely. It is preferably in the range from> 0.0% by weight to 50.0% by weight, preferably in the range from 1.0% by weight to 30.0% by weight, particularly preferably in the range from 3, 0% to 25.0% by weight.
- the amount of the spray-dried calcium carbonate particles in the dispersion paint can basically be chosen freely. It is preferably in the range from> 0.0% by weight to 50.0% by weight, preferably in the range from 1.0% by weight to 30.0% by weight, particularly preferably in the range from 3, 0% to 25.0% by weight.
- Wall paints especially for smudge-resistant interior paints, the amount of spray-dried calcium carbonate particles in the range of 4.0 wt .-% to 12.0 wt .-%, each based on the total weight of the emulsion paint.
- the amount of spray-dried calcium carbonate particles in the range of 4.0 wt .-% to 12.0 wt .-%, each based on the total weight of the emulsion paint.
- the amount of the spray-dried calcium carbonate particles is in the range of 6.0 wt .-% to 15.0 wt .-%, each based on the
- Wall paints especially for wash-resistant interior paints, the amount of spray-dried calcium carbonate particles in the range of 8.0 wt .-% to 24.0 wt .-%, each based on the total weight of the emulsion paint.
- the amount of spray-dried calcium carbonate particles is in the range from 8.0% by weight to 18.0% by weight, based in each case on the
- Wall paints especially for wash-resistant interior paints, the amount of spray-dried calcium carbonate particles in the range of 8.0 wt .-% to 15.0 wt .-%, each based on the total weight of the emulsion paint.
- the amount of spray-dried calcium carbonate particles is in the range from 8.0% by weight to 12.0% by weight, based in each case on the
- peel-resistant interior paints suitably have a wet abrasion resistance according to DIN EN 13300, paragraph 5.4, class 5
- Thickness decrease of the layer> 70 pm at 40 rubbing cycles preferably according to DIN EN 13300, paragraph 5.4, class 4 (thickness decrease of the layer ⁇ 70 pm at 40 scrubbing cycles), to "wash-resistant interior paints" according to the invention suitably a wet abrasion resistance according to DIN EN 13300, paragraph 5.4, class 3 (thickness decrease of the layer> 20 mm and ⁇ 70 mm at 200
- abrasion resistant interior paints suitably have a wet abrasion resistance according to DIN EN 13300, paragraph 5.4, class 2 (thickness decrease of the layer> 5 mm and ⁇ 20 mm at 200
- Scouring cycles preferably according to DIN EN 13300, paragraph 5.4, class 1
- the emulsion paint according to the invention preferably contains further colorants, in particular pigments and / or dyes.
- Colorants in this context designate all colorants, in particular inorganic or organic, natural or synthetic colorants.
- the inorganic colorants include pigments which may also have filler character.
- the organic colorants include both pigments and dyes.
- the most important white pigment is titanium dioxide, as it has the highest light scattering power. It is expediently prepared as rutile or as anatase, which according to the invention, however, plays only a minor role.
- the colorant content of the emulsion paint can basically be chosen freely. It is preferably in the range from 0.0 wt .-% to 30.0 wt .-%, in particular 1, 0 to 25.0 wt .-%, each based on the total weight of the emulsion paint.
- a significant advantage of the present invention is the fact that compared with conventional emulsion paints the same color effect can be achieved with less colorants, in particular with less titanium dioxide.
- the emulsion paint contains, in each case based on it
- Total weight preferably less than 30.0 wt .-%, preferably less than 25.0 wt .-%, in particular less than 5.0 wt .-% of spray-dried calcium carbonate particles different colorants, in particular titanium dioxide.
- the titanium dioxide content is in the range from 1, 0 wt .-% to 2.0 wt .-%, each based on the total weight of the emulsion paint.
- the titanium dioxide content is in the range from 1, 0 wt .-% to 4.0 wt .-%, each based on the total weight of the emulsion paint.
- the titanium dioxide content is in the range from 3.0% by weight to 8.0% by weight, based in each case on the
- Total weight of the emulsion paint is the
- Titanium dioxide content in the range of 8.0 wt .-% to 12.0 wt .-%, each based on the total weight of the emulsion paint.
- the titanium dioxide content is in the range from 10.0% by weight to 15.0% by weight, based in each case on the
- Wall paints especially for scrub resistant interior paints, is the
- Titanium dioxide content in the range of 15.0 wt .-% to 20.0 wt .-%, each based on the total weight of the emulsion paint.
- Fillers of various types of grinding and brightness can further increase the volume of the emulsion paint and further improve the technical and optical properties of the emulsion paint.
- Fillers preferred according to the invention include ground (natural) calcium carbonate (most preferred filler, GCC); precipitated but not spray-dried calcium carbonate (increases brightness and hiding power in paints, reduces the consumption of T1O 2 );
- Diatomaceous earth amorphous silica with irregular particle shape, matting
- Kaolin aluminum silicate, improves surface smoothness
- Mica potassium aluminum silicate; wet grinding lamellar structure, thus crack-reducing, matting, weatherproof
- Talc magnesium silicate, matt
- Barium sulfate high brightness, increases gloss, chemically inert
- the optical properties of the pigments and fillers are preferably determined by the difference in the refractive indices between the surrounding medium and the pigment or filler. The larger this difference, the greater the hiding power. Substances whose refractive indices are greater than 1.7 are commonly referred to as white pigments.
- Additives are added preferably only in a small amount of 0.2 to 2% in the emulsion paints according to the invention.
- the following additives are used:
- modified cellulose ethers of very different molecular weights.
- synthetic thickeners in particular polyacrylate or polyurethane-based, are particularly preferred.
- layered silicates such as LAPONITE as
- Thixotropic agents particularly advantageous (solid color, structural colors).
- wetting and dispersing agents preferably bring about the best possible distribution of the solids in the liquid phase.
- wetting and dispersing agents preferably bring about the best possible distribution of the solids in the liquid phase.
- Film-forming aids preferably enable plastic dispersions of higher minimum film-forming temperature (MFT) by external plasticization
- Defoamers preferably minimize foaming during the process
- foam bubbles may be e.g. the
- Preservatives preferably prevent infestation of both the paint and the finished paint by bacteria, fungi and algae.
- wax emulsions examples include wax emulsions, silicone emulsions and hollow spheres (inorganic, organic).
- the amount of fillers (spray-dried calcium carbonate, further fillers and additives) in the emulsion paint can basically be chosen freely. It is preferably in the range of> 0.0% by weight to 70.0% by weight, preferably in the range of 5.0 to 66.0% by weight, particularly preferably in the range of 20.0% by weight. % to 66.0% by weight.
- the amount of fillers is in the range from 60.0% by weight to 66.0% by weight, in each case based on the total weight of the
- Emulsion paint for further particularly preferred wall paints, in particular for wash-resistant interior paints, the amount of fillers is in the range of 56.0 wt .-% to 62.0 wt .-%, each based on the total weight of
- Emulsion paint for further particularly preferred wall paints, in particular for wash-resistant interior paints, the amount of fillers is in the range from 52.0% by weight to 56.0% by weight, in each case based on the total weight of the
- the amount of fillers is in the range from 45.0% by weight to 52.0% by weight, in each case based on the total weight of the emulsion paint.
- the amount of fillers is in the range of 40.0 wt .-% to 48.0 wt .-%, each based on the total weight of Emulsion paint.
- the amount of fillers is in the range from 22.0% by weight to 30.0% by weight, in each case based on the total weight of the emulsion paint.
- the emulsion paint contains calcium carbonate particles which have been obtained by spray-drying a precipitated calcium carbonate suspension.
- Precipitated Calcium Carbonate refers to synthetic calcium carbonate - in contrast to GCC (ground calcium carbonate), "ground (natural) calcium carbonate”).
- GCC ground calcium carbonate
- PCC can be made in several ways. Known processes include precipitation with carbon dioxide, the lime-soda process and the Solvay process, in which PCC is a by-product of ammonia production.
- the precipitation with carbon dioxide is particularly preferred according to the invention.
- quicklime is first quenched to calcium hydroxide (lime) and then fed as a suspension to the reaction vessel. There carbon dioxide is introduced until the calcium hydroxide is completely converted to calcium carbonate.
- the reaction time can be assessed and controlled by the course of the pH.
- the pH of the reaction mixture is preferably less than 9.0, preferably less than 8.0, and is suitably in the range from 6.5 to 7.5.
- the precipitation is preferably carried out at a solids content of 10 wt .-% to 20.0 wt .-%.
- the rhombohedral or scalenohedral crystal form is preferred.
- calcium carbonate is produced as a by-product in the preparation of the caustic alkalis sodium hydroxide and potassium hydroxide.
- the specific surface area of the calcium carbonate to be spray-dried is preferably greater than 5 m 2 / g, preferably greater than 15 m 2 / g, particularly preferably greater than 25 m 2 / g, advantageously greater than 35 m 2 / g, in particular greater than 40 m 2 / g.
- the mean particle size dso% of the calcium carbonate to be spray-dried is preferably greater than 0.2 ⁇ m, preferably greater than 0.5 ⁇ m, in particular at least 1.0 ⁇ m. On the other hand, it is preferably less than 3.0 ⁇ m, preferably less than 2.5 ⁇ m, in particular less than 2.0 ⁇ m.
- the mean particle size dso% of the calcium carbonate to be spray-dried is in the range of greater than 0.2 ⁇ m to less than 3.0 ⁇ m, preferably in the range of greater than 0.5 ⁇ m to less than 2.5 ⁇ m, in particular in the range of at least 1, 0 pm to less than 2.0 pm.
- the particle size is preferably determined by sedimentation analysis, conveniently using the Sedigraph 5100 (Micromeritics GmbH).
- the calcium carbonate to be spray-dried is preferably calcitic calcium carbonate.
- calcitic calcium carbonate is preferably calcitic calcium carbonate.
- X-ray diffraction with an internal standard, preferably aluminum oxide, in conjunction with a Rietveld refinement has proved to be particularly suitable for determining the crystalline fractions.
- scalenohedral and rhombohedral, in particular rhombohedral, calcium carbonate particles have proven particularly useful.
- the spray-drying of the suspension of the precipitated calcium carbonate particles can be carried out in a manner known per se. First, preferably the
- the suspension comprises, based on its total weight, at least 5.0% by weight, preferably at least 10.0% by weight, in particular at least 15.0% by weight, of precipitated calcium carbonate particles. Furthermore, the suspension comprises
- the water content is the
- Suspension based on their total weight, preferably at least 65.0 wt .-%, preferably at least 75.0 wt .-%, in particular at least 85% by weight.
- the suspension may contain other additives whose content is preferably as low as possible.
- the content of further additives, based on the total weight of the suspension is therefore preferably less than 25.0% by weight, preferably less than 10.0% by weight, more preferably less than 5.0% by weight, advantageously less than 1, 0 wt .-%, in particular less than 0.5% by weight.
- the spray-to-be-dried suspension contains no inorganic binder.
- the smallest possible proportion by weight of organic binder, based on PCC, is sought in the spray-to-be-dried suspension, which is advantageously less than 20.0% by weight, preferably less than 15.0% by weight, more preferably less than 10.0% by weight. %, in particular less than 5.0 wt .-% is.
- the spray-drying suspension contains no inorganic
- the suspension to be dried is preferably converted into a spray. This enormously increases the total surface area of the suspension.
- the spray is preferably introduced into a stream of hot gas, whereby due to the large surface in a very short time the liquid dries convectively to a fine powder.
- the hot gas is preferably air.
- the inlet temperature of the hot gas is preferably in the range of 125 ° C to 500 ° C, preferably in the range of 2O0 ° C to 350 ° C, in particular in the range of 250 ° C to 300 ° C.
- the outlet temperature of the hot gas is preferably in the range of 25 ° C to 300 ° C, preferably in the range of 50 ° C to 200 ° C, in particular in the range of 100 ° C to 150 ° C.
- the spray concentration of the PCC is preferably selected in the range of 1% to 40%, preferably in the range of 5% to 25%, in particular in the range of 7.5% to 15%.
- the resulting powdered material to be dried is expediently separated from the air stream by a cyclone separator.
- the spray dryer is preferably operated continuously.
- the spray-dried calcium carbonate particles preferably have a ratio of BET specific surface area to average
- Particle size dso% greater than 6 m 2 / (gm), preferably greater than 7 m 2 / (gm),
- the spray-dried calcium carbonate particles preferably have a ratio BET surface area to average particle size dso% less than 200 m 2 / (gmm), preferably less than 150 m 2 / (g pm), advantageously less than 125 m 2 / (gmm), conveniently less than 112 m 2 / (gmm), even more preferably less than 110 m 2 / (gm), most preferably less than 100 m 2 / (gm), in particular less than 95 m 2 / (gm).
- the PVK is in the range of 25% to 99%, preferably in the range of 40% to 99%, in particular in the range of 62% to 98%.
- the PVC is in the range from 93.0% by weight to 98.0% by weight, in each case based on the total weight of the emulsion paint.
- the PVC is in the range from 80.0% by weight to 92.0% by weight, in each case based on the total weight of the emulsion paint.
- the PVC is in the range from 78.0% by weight to 83.0% by weight, in each case based on the total weight of the emulsion paint.
- the PVC is in the range from 74.0% by weight to 76.0% by weight, in each case based on the total weight of the emulsion paint.
- the PVK is in the range from 68.0% by weight to 72.0% by weight, in each case based on the
- PVK is in the range of 62.0 wt .-% to 70.0 wt .-%, each based on the
- the paint obtained by applying the emulsion paint has a comparatively low sheen (gloss at 85 °).
- the sheen is preferably less than 10, preferably less than 5, particularly preferably less than 4,
- the abrasiveness and wet abrasion of the paint obtainable by applying the emulsion paint is very low.
- the wet abrasion is
- the paint obtainable by applying the emulsion paint has a sufficient hiding power (contrast ratio, KV).
- the hiding power is preferably at least 92.0%, preferably greater than 95.0%, particularly preferably greater than 97.0%, very particularly preferably greater than 97.3%, in particular greater than 97.5%.
- the white value R 457 of the powder obtainable by application of the emulsion paint
- Paint is preferably greater than 89.0, preferably greater than 90.0, in particular greater than 90.3.
- a portion of the resulting suspension is oven dried at 130 ° C for the Comparative Examples and ground or concentrated by filtration to a slurry.
- Part of the product from step 1 is ground.
- Table 4 shows the materials investigated here.
- the crystal modification was determined by X-ray diffraction.
- the BET specific surface area was measured according to DIN-ISO 9277.
- the particle size d50% was determined by Sedigraph. 3.
- step 2 Add ammonia and wetting agent and disperse for 3 min at 1865 rpm (step 2)
- step 2 Place the stainless steel cup on the balance and weigh in the binder, defoamer and biocide 8. Stir everything with the spatula, then disperse for 2 min at 1865 rpm (step 2)
- Electromotive film applicator (Erichsen, Coatmaster 509 / MC-I)
- contrast card Leneta For hiding power: contrast card Leneta, form 14H coat;
- the paint to be tested is applied to a film with a film applicator of a defined thickness. After drying, the coated film is subjected to 200 rubbing cycles in a scrub tester and the layer thickness loss is calculated in microns.
- Washing liquid (2.5 g / L sodium n-dodecylbenzenesulfonate in E water)
- Mass loss mass before rubbing - mass after scrubbing.3 Determination of dry film density
- the thickness of the uncoated sample sheet is determined to be accurate to 1pm. From a coated sample foil, a piece of 100 mm ⁇ 100 mm is produced by means of a template and the mass is determined exactly to 1 mg.
- the thickness of the coated sample film is determined to be accurate to 1 pm 5.
- the dry film density is determined according to the following formula: p dry film density
- the layer thickness loss is calculated:
- Contrast ratio (%) RYb / RYw * 100
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
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- Paints Or Removers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18000030 | 2018-01-16 | ||
| PCT/EP2019/000006 WO2019141502A1 (de) | 2018-01-16 | 2019-01-10 | Dispersionsfarbe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3740538A1 true EP3740538A1 (de) | 2020-11-25 |
Family
ID=61002817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19700856.8A Withdrawn EP3740538A1 (de) | 2018-01-16 | 2019-01-10 | Dispersionsfarbe |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3740538A1 (de) |
| WO (1) | WO2019141502A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040988A (en) | 1974-09-27 | 1977-08-09 | The Procter & Gamble Company | Builder system and detergent product |
| DE10318143A1 (de) * | 2003-03-08 | 2004-09-23 | Brillux Gmbh & Co. Kg | Beschichtungsmittel mit Farbumschlag |
| WO2006105189A1 (en) | 2005-03-31 | 2006-10-05 | Imerys Kaolin, Inc. | Aggregated particulate minerals, compositions comprising aggregated calcium carbonate, methods of making and uses thereof |
| KR102004560B1 (ko) | 2011-10-05 | 2019-07-26 | 이머리 | 침강성 탄산칼슘 입자 및 그의 용도 |
| EP2796412B1 (de) | 2013-04-24 | 2021-05-12 | Università Del Salento - Dipartimento Di Ingegneria Dell'Innovazione | Synthese von CaCO3-Nanopartikeln durch Sprühtrocknung |
| FI128521B (en) | 2013-06-20 | 2020-07-15 | Fp Pigments Oy | Composition of precipitated calcium carbonate, method of producing the same and the uses thereof |
| ES2672208T3 (es) * | 2014-11-07 | 2018-06-13 | Omya International Ag | Método de fabricación de una suspensión que comprende un material que comprende carbonato de calcio |
| US20180265371A1 (en) * | 2015-01-14 | 2018-09-20 | Imerys Usa, Inc. | A controlled process for precipitating polymorphs of calcium carbonate |
| DE102016002221A1 (de) * | 2016-02-26 | 2017-08-31 | Brillux Gmbh & Co. Kg | Dispersionsfarbe |
-
2019
- 2019-01-10 EP EP19700856.8A patent/EP3740538A1/de not_active Withdrawn
- 2019-01-10 WO PCT/EP2019/000006 patent/WO2019141502A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019141502A1 (de) | 2019-07-25 |
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