EP3927757A1 - Nouveaux systèmes de revêtement de finition à deux composants contenant des esters de poly(acide aspartique) - Google Patents
Nouveaux systèmes de revêtement de finition à deux composants contenant des esters de poly(acide aspartique)Info
- Publication number
- EP3927757A1 EP3927757A1 EP20705080.8A EP20705080A EP3927757A1 EP 3927757 A1 EP3927757 A1 EP 3927757A1 EP 20705080 A EP20705080 A EP 20705080A EP 3927757 A1 EP3927757 A1 EP 3927757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- coating
- polyaspartic acid
- weight
- compounds
- 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.)
- Pending
Links
- 150000002148 esters Chemical class 0.000 title claims abstract description 95
- 108010064470 polyaspartate Proteins 0.000 title claims abstract description 80
- 229920000805 Polyaspartic acid Polymers 0.000 title claims abstract description 78
- 238000000576 coating method Methods 0.000 title claims abstract description 76
- 239000011248 coating agent Substances 0.000 title claims abstract description 39
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 25
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 239000001530 fumaric acid Substances 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims abstract description 8
- 239000006115 industrial coating Substances 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims description 64
- 150000001875 compounds Chemical class 0.000 claims description 43
- 239000005056 polyisocyanate Substances 0.000 claims description 39
- 229920001228 polyisocyanate Polymers 0.000 claims description 39
- 239000008199 coating composition Substances 0.000 claims description 35
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 35
- 229920000768 polyamine Polymers 0.000 claims description 28
- 239000000654 additive Substances 0.000 claims description 14
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 125000000524 functional group Chemical group 0.000 claims description 3
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- 239000001023 inorganic pigment Substances 0.000 claims description 3
- 239000012860 organic pigment Substances 0.000 claims description 3
- -1 maleic acid ester Chemical class 0.000 description 21
- DZIHTWJGPDVSGE-UHFFFAOYSA-N 4-[(4-aminocyclohexyl)methyl]cyclohexan-1-amine Chemical compound C1CC(N)CCC1CC1CCC(N)CC1 DZIHTWJGPDVSGE-UHFFFAOYSA-N 0.000 description 20
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 16
- IEPRKVQEAMIZSS-AATRIKPKSA-N diethyl fumarate Chemical compound CCOC(=O)\C=C\C(=O)OCC IEPRKVQEAMIZSS-AATRIKPKSA-N 0.000 description 16
- 238000012360 testing method Methods 0.000 description 16
- DLYLVPHSKJVGLG-UHFFFAOYSA-N 4-(cyclohexylmethyl)cyclohexane-1,1-diamine Chemical compound C1CC(N)(N)CCC1CC1CCCCC1 DLYLVPHSKJVGLG-UHFFFAOYSA-N 0.000 description 14
- 150000001412 amines Chemical class 0.000 description 14
- 239000003973 paint Substances 0.000 description 14
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 14
- 239000002904 solvent Substances 0.000 description 14
- IGSBHTZEJMPDSZ-UHFFFAOYSA-N 4-[(4-amino-3-methylcyclohexyl)methyl]-2-methylcyclohexan-1-amine Chemical compound C1CC(N)C(C)CC1CC1CC(C)C(N)CC1 IGSBHTZEJMPDSZ-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 12
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- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 239000004922 lacquer Substances 0.000 description 9
- 239000000049 pigment Substances 0.000 description 9
- 229920005862 polyol Polymers 0.000 description 9
- 150000003077 polyols Chemical class 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 8
- JWTVQZQPKHXGFM-UHFFFAOYSA-N 2,5-dimethylhexane-2,5-diamine Chemical compound CC(C)(N)CCC(C)(C)N JWTVQZQPKHXGFM-UHFFFAOYSA-N 0.000 description 7
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
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- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 description 5
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 5
- 239000005058 Isophorone diisocyanate Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 150000004985 diamines Chemical class 0.000 description 5
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- NNOZGCICXAYKLW-UHFFFAOYSA-N 1,2-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC=C1C(C)(C)N=C=O NNOZGCICXAYKLW-UHFFFAOYSA-N 0.000 description 4
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 4
- 241001550224 Apha Species 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920000608 Polyaspartic Polymers 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N activated carbon Substances [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- KEIQPMUPONZJJH-UHFFFAOYSA-N dicyclohexylmethanediamine Chemical compound C1CCCCC1C(N)(N)C1CCCCC1 KEIQPMUPONZJJH-UHFFFAOYSA-N 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000004611 light stabiliser Substances 0.000 description 4
- 239000011976 maleic acid Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical group NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 4
- DPQHRXRAZHNGRU-UHFFFAOYSA-N 2,4,4-trimethylhexane-1,6-diamine Chemical compound NCC(C)CC(C)(C)CCN DPQHRXRAZHNGRU-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001728 carbonyl compounds Chemical class 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 3
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- 230000005855 radiation Effects 0.000 description 3
- VNMOIBZLSJDQEO-UHFFFAOYSA-N 1,10-diisocyanatodecane Chemical compound O=C=NCCCCCCCCCCN=C=O VNMOIBZLSJDQEO-UHFFFAOYSA-N 0.000 description 2
- GFNDFCFPJQPVQL-UHFFFAOYSA-N 1,12-diisocyanatododecane Chemical compound O=C=NCCCCCCCCCCCCN=C=O GFNDFCFPJQPVQL-UHFFFAOYSA-N 0.000 description 2
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- OUJCKESIGPLCRN-UHFFFAOYSA-N 1,5-diisocyanato-2,2-dimethylpentane Chemical compound O=C=NCC(C)(C)CCCN=C=O OUJCKESIGPLCRN-UHFFFAOYSA-N 0.000 description 2
- DFPJRUKWEPYFJT-UHFFFAOYSA-N 1,5-diisocyanatopentane Chemical compound O=C=NCCCCCN=C=O DFPJRUKWEPYFJT-UHFFFAOYSA-N 0.000 description 2
- VSPTYJFXRZZHOA-UHFFFAOYSA-N 2-propan-2-ylcyclohexane-1,3-diamine Chemical compound CC(C)C1C(N)CCCC1N VSPTYJFXRZZHOA-UHFFFAOYSA-N 0.000 description 2
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- 239000012159 carrier gas Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- LDCRTTXIJACKKU-ARJAWSKDSA-N dimethyl maleate Chemical compound COC(=O)\C=C/C(=O)OC LDCRTTXIJACKKU-ARJAWSKDSA-N 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical class C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- OQGSHLFKXYVLRR-UHFFFAOYSA-N dodecane-1,2-diamine Chemical compound CCCCCCCCCCC(N)CN OQGSHLFKXYVLRR-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- BMBPXYSSIVAHDP-UHFFFAOYSA-N n'-(1-methylcyclohexyl)methanediamine Chemical compound NCNC1(C)CCCCC1 BMBPXYSSIVAHDP-UHFFFAOYSA-N 0.000 description 1
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical class C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 238000000678 plasma activation Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- KLNPWTHGTVSSEU-UHFFFAOYSA-N undecane-1,11-diamine Chemical compound NCCCCCCCCCCCN KLNPWTHGTVSSEU-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052726 zirconium 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; 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
- C09D175/04—Polyurethanes
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3234—Polyamines cycloaliphatic
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3821—Carboxylic acids; Esters thereof with monohydroxyl compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
-
- 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
-
- 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
- C08G2150/00—Compositions for coatings
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2251—Oxides; Hydroxides of metals of chromium
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
Definitions
- the present invention relates to two-component top coating systems containing polyaspartic acid esters with only small amounts of fumaric acid dialkyl ester, a process for their production and their use for producing coatings, in particular for corrosion protection, and for use in the field of ACE (Agriculture, Construction and Earth moving equipment) and substrates coated therewith.
- ACE Agriculture, Construction and Earth moving equipment
- Two-component (2K) coating compositions which contain a polyisocyanate component as a binder in combination with a reactive component which is reactive toward isocyanate groups, in particular a polyhydroxyl component, have been known for a long time. They are suitable for the production of high-quality coatings that can be made hard, elastic, abrasion and solvent-resistant and, above all, weather-resistant.
- polyaspartic acid esters or polyaspartates which, in combination with lacquer polyisocyanates, are particularly suitable as binders in low-solvent or solvent-free (high solids) coating materials and a rapid curing of the coatings at low temperatures.
- top coatings enables, in addition to the aforementioned rapid curing of these coatings, a reduced layer structure, which is very attractive for use in the area of top coatings.
- ACE Agriculture, Construction and Earth moving equipment
- the conventional polyaspartate-based top coatings have not yet been able to establish themselves because of their loss of gloss.
- pigmented top coatings based on polyaspartate which have improved gloss stability.
- polyaspartic acid esters alone or in a mixture with other components which are reactive towards isocyanate groups in 2K coating agents is described, for example, in EP0403921, EP0639628, EP0667362, EP0689881, US5214086, EP0699696, EP0596360, EP0893458, DE047018151, EP0893458, DE019701501, DE0470181535
- amino-functional aspartic acid esters is known per se.
- the synthesis takes place via an addition of primary polyamines to an activated carbon double bond of vinylogous carbonyl compounds, as contained, for example, in maleic or fumaric acid esters, which is sufficiently described in the literature (Hauben Weyl, Meth. D. Org. Chemie Vol. 11/1 , 272 (1957), Usp. Khim. 1969, 38, 1933).
- This reaction can lead to the formation of a polyaspartic acid ester with primary amino groups as a by-product if only one amino group of the polyamine has reacted with the double bond of the vinylogous carbonyl compounds.
- maleic acid ester is used as the vinylogous carbonyl compound.
- a retro-Michael addition can take place as a further undesired side reaction in which dialkyl fumarate is formed by elimination of the polyamine as a secondary component.
- a typical production process for a polyaspartic acid ester therefore requires a storage time of 4-6 weeks after most of the starting materials have reacted with one another. During this time, the so-called ripening of the product takes place, which manifests itself through stabilization of the viscosity.
- dialkyl fumarate Because the conversion continues to rise within this time, the content of dialkyl fumarate also falls. This storage over several weeks leads to considerable logistics costs within production. Although the product is only delivered to the customer after storage, it still contains substantial amounts of dialkyl fumarate, which can cause severe sensitization.
- the polyaspartic acid esters produced in this way usually still contain residues of 3 to 20 percent by weight of fumaric acid ester after ripening.
- the object of the present invention was to provide a coating composition based on polyaspartic acid esters for producing gloss-stable pigmented top coatings.
- compositions based on polyaspartic acid esters with a greatly reduced content of dialkyl fumarate.
- the content of fumaric acid dialkyl ester in the polyaspartic acid ester component is, according to the invention, 0.01 to 1.2% by weight, preferably 0.01 to 1% by weight, particularly preferably 0.01 to 0.1% by weight, and can be determined by a special Distillation process can be reduced to these values.
- WO2018 / 074884 and WO2018 / 074885 which had not yet been published at the time the present invention was applied for a patent, likewise describe the distillation of polyaspartic acid esters, WO2018074884 also describes their use in coating compositions. Neither of the two documents describes pigmented top coatings based on these purified esters.
- the present invention relates to two-component coating compositions (2K coating agents) containing a) at least one component A containing polyaspartic acid ester,
- At least one inorganic and / or organic pigment preferably in a proportion of at least 3% by weight (> 3% by weight), based on the total weight of the two-component composition (component Dl), and
- components A containing polyaspartic acid esters are compositions containing one or more polyaspartic acid esters of the general formula (I)
- X is a mivalent organic radical, optionally containing one or more heteroatoms, such as that obtained by removing the primary amino groups from a corresponding polyamine having (cyclo) aliphatically or araliphatically bound primary amino groups of the molecular weight range 60 to 6000 g / mol can be obtained, and which can contain further functional groups which are reactive towards isocyanate groups and / or which are inert at temperatures up to 100 ° C,
- n stands for m-1
- X, radicals RI and R2 have the meanings given above, characterized in that, in component A, fumaric acid dialkyl ester is based in an amount of 0.01 to 1.2% by weight (> 0.01 to ⁇ 1.2% by weight) based on the total weight of component A.
- compositions containing one or more polyaspartic acid esters are preferred, compositions containing one or more polyaspartic acid esters of the general formulas (I) and optionally (II) in which RI and R2 are identical or different alkyl radicals with 1 to 18 carbon atoms each, preferably identical or different alkyl radicals with 1 to 8 carbon atoms and very particularly preferably each alkyl radicals such as methyl, ethyl, propyl, iso-propyl, butyl or iso-butyl radicals. Most preferred is ethyl.
- Polyaspartic acid ester-containing components A are compositions containing one or more polyaspartic acid esters of the general formulas (I) and optionally (II), in which X stands for organic radicals which are formed by removing the primary amino groups from a corresponding (cyclo) aliphatically or araliphatically bonded one polyamine containing primary amino groups are obtained, selected from the following group: all known polyamines with primary amino groups which correspond to the general formula (III).
- ethylenediamine 1,2-diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 2,5-diamino-2,5-dimethylhexane, 1,5-diamino-2-methylpentane (Dytek® A, Fa Invista), 1,6-diaminohexane, 2,2,4- and / or 2,4,4-trimethyl-1,6-diaminohexane, 1,11-diaminoundecane, 1,12-diaminododecane or triaminononane, ether amines , such as 4,9-dioxadodecane-l, 12-diamine, 4,7,10-trioxatridecane-l, 13-diamine, or higher molecular weight polyether polyamines with aliphatically bonded, primary amino groups, such as those from the company under the name
- aliphatic polycyclic polyamines such as tricyclodecane dismethylamine (TCD diamine) or bis (aminomethyl) norbornane, amino-functional siloxanes, for example diaminopropylsiloxane G10 DAS (from Momentive), fatty alkyl-based amines such as, for example, fentamines from Solvay, dimer fatty acid diamines such as, for example, Priamine from Croda.
- TCD diamine tricyclodecane dismethylamine
- amino-functional siloxanes for example diaminopropylsiloxane G10 DAS (from Momentive)
- fatty alkyl-based amines such as, for example, fentamines from Solvay
- dimer fatty acid diamines such as, for example, Priamine from Croda.
- compositions containing one or more polyaspartic acid esters of the general formula (I) and optionally (II) in which X represents organic radicals obtained by removing the primary amino groups from one of the polyamines of the general formula (III) , where m 2 and X stands for a cyclic hydrocarbon radical with at least one cyclic carbon ring.
- compositions containing one or more polyaspartic acid esters of the general formula (I) and optionally (II) in which X stands for organic radicals obtained by removing the primary amino groups from one of the polyamines of the general formula (III) is selected from the group: polyether polyamines with aliphatically bound primary amino groups, 1,2 diaminopropane, 1,4-diaminobutane, 1,6-diaminohexane, 1,5-diamino-2-methylpentane, 2.5 diamino-2,5- dimethylhexane, 2,2,4- and / or 2,4,4-trimethyl-1,6-diaminohexane, 1,11-diaminounodecane, 1,2-diaminododecane, 1-amino-3, 3, 5-trimethyl-5 -aminomethylcyclohexane, 2,4- and / or 2,6-hexa
- 3,3'-Dimethyl-4,4'-diamino-dicyclohexyl methane, 1,5-diaminopentane, 2,4'- and / or 4,4'- are particularly preferred Diaminodicyclohexylmethane, 1,5-diamino-2-methylpentane and the use of 2,4'- and / or 4,4'-diaminodicyclohexylmethane is very particularly preferred.
- polyaspartic acid ester-containing components A compositions containing one or more polyaspartic acid esters of the general formulas (I) and optionally (II) in which X stands for organic radicals obtained by removing the primary amino groups from one of the polyamines of the general formula (III) is obtained, selected from the group: polyether polyamines with aliphatically bonded primary amino groups, 1,2 diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane, 1,5-diamino-2-methylpentane, 2, 5 diamino-2,5-dimethylhexane, 2,2,4- and / or 2,4,4-trimethyl-l, 6-diaminohexane, 1,11-diaminounodecane, 1,12-diaminododecane, l-amino-3, 3,5-trimethyl-5-aminomethyl
- Components A containing polyaspartic acid esters are very particularly preferred.
- Index m stands for an integer> 1 and preferably for 2.
- the polyaspartic acid ester-containing component A contains one or more polyaspartic acid esters of the general formula (II), this / these is / are in a proportion of> 0%, preferably at least 0.1% (> 0.1%), particularly preferably at least 1% (> 1%), very particularly preferably at least 4% (> 4%), and preferably of a maximum of 20% ( ⁇ 20%), particularly preferably a maximum of 15% ( ⁇ 15%) of the GC surface (measured as area % in the gas chromatogram), the sum of the GC surfaces of the compounds of the two general formulas (I) and (II) being 100%.
- the specified upper and lower limits can be combined as required. All possible combinations are considered disclosed.
- Particularly preferred are polyaspartic acid esters dialtige components A compositions containing one or more polyaspartic acid esters of the general formula (I),
- X stands for an m-valent organic radical, optionally containing one or more fletero atoms, as obtained by removing primary amino groups from polyether polyamines with aliphatically bonded primary amino groups, 1,2 diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1 , 6-diaminohexane, 1,5-diamino-2-methylpentane, 2,5 diamino-2,5-dimethylhexane, 2,2,4- and / or 2,4,4-trimethyl-1,6-diaminohexane, 1 , 11-diaminounodecane, 1,12-diaminododecane, 1-amino-3,3,5-trimethyl-5-aminomethylcyclohexane, 2,4- and / or 2,6-flexahydrotoluylenediamine, 2,4'- and / or 4, 4'-diamino
- RI and R2 stand for identical or different alkyl radicals each with 1 to 8 carbon atoms
- n stands for m-1
- X, radicals RI and R2 have the abovementioned meanings, characterized in that the proportion of compounds of the general formula (II)> 0%, preferably at least 0.1% (> 0.1%), particularly preferably at least 1% ( > 1%), very particularly preferably at least 4% (> 4%) of the GC surface (measured as% area in the gas chromatogram), the sum of the GC surfaces of the compounds of the two general formulas (I) and (II) 100%, and in component A dialkyl fumarate is present in an amount of 0.01 to 1.2% by weight (> 0.01 to ⁇ 1.2% by weight), based on the total weight of component A.
- compositions comprising one or more polyaspartic acid esters of the general formula (I) in which
- X stands for an m-valent organic radical, as it is obtained by removing primary amino groups from 3,3‘-dimethyl
- Diaminodicyclohexylmethane, l, 5-diamino-2-methylpentane can be obtained,
- RI and R2 for identical or different alkyl radicals selected from the group
- n stands for m-1
- X, radicals RI and R2 have the abovementioned meanings, characterized in that the proportion of compounds of the general formula (II)> 0%, preferably at least 0.1% (> 0.1%), particularly preferably at least 1% ( > 1%), very particularly preferably at least 4% (> 4%) of the GC surface (measured as% area in the gas chromatogram), the sum of the GC surfaces of the compounds of the two general formulas (I) and (II) Is 100% and in component A fumaric acid dialkyl ester in an amount of 0.01 to 1 wt .-% (> 0.01 to ⁇ 1 wt .-%), based on the total weight of component A, are present.
- X stands for an m-valent organic radical, as obtained by removing primary amino groups from 3,3'-dimethyl-4,4'diamino- dicyclohexylmethane, 2,4'- and / or 4,4'-diaminodicyclohexylmethane can be obtained,
- RI and R2 stand for ethyl residues
- n stands for m-1
- X, radicals RI and R2 have the abovementioned meanings, characterized in that the proportion of compounds of the general formula (II)> 0%, preferably at least 0.1% (> 0.1%), particularly preferably at least 1% ( > 1%), very particularly preferably at least 4% (> 4%) of the GC surface (measured as area% in the gas chromatogram), the sum of the GC surfaces of the compounds of the two general formulas (I) and (II) Is 100% and in component A fumaric acid dialkyl ester in an amount of 0.01 to 0.1 wt .-% (> 0.01 to ⁇ 0.1 wt .-%), based on the total weight of component A, are present.
- polyaspartic acid ester-containing component A does not contain any polyaspartic acid esters having a primary amino group of the general formula (II).
- Components A containing polyaspartic acid esters are preferred.
- the platinum-cobalt color number is measured in accordance with DIN EN ISO 6271: 2016-05.
- Components A containing polyaspartic acid esters and containing one or more polyaspartic acid esters of the general formula (I) and formula (II) can be produced by the following process:
- m represents an m-valent organic radical, optionally containing one or more heteroatoms, as can be obtained by removing the primary amino groups from a polyamine having (cyclo) aliphatically or araliphatically bonded primary amino groups and having a molecular weight range of 60 to 6000 g / mol, and which can contain further functional groups which are reactive towards isocyanate groups and / or which are inert at temperatures up to 100 ° C., m is an integer> 1, preferably 2, with compounds of the general formula (IV)
- each alkyl radical preferably for identical or different organic radicals, preferably for identical or different alkyl radicals with 1 to 18 carbon atoms each, particularly preferably for identical or different alkyl radicals with 1 to 8 carbon atoms each, very particularly preferably for each alkyl radicals such as methyl, ethyl, propyl , iso-propyl, butyl or iso-butyl radicals and most preferably represent ethyl, and removal of the unreacted portion of the compound of the general formula (IV) by distillation.
- alkyl radicals such as methyl, ethyl, propyl , iso-propyl, butyl or iso-butyl radicals and most preferably represent ethyl, and removal of the unreacted portion of the compound of the general formula (IV) by distillation.
- the above-described process for preparing the polyaspartic acid ester-containing components A, comprising one or more polyaspartic acid esters of the general formula (I) and formula (II), is preferably carried out in two steps.
- the unreacted portion of the compounds of the general formula (IV) is removed by distillation.
- Suitable conditions during the distillation are a pressure range between 0.01 and 2 mbar and a temperature of the bottom outlet at the outlet from the distillation apparatus is ⁇ 170 ° C and> the temperature that results from the following formula (V):
- T (sump drain) 27 x ln (p) + 150 (V) where T (sump drain) is the temperature of the sump drain in ° C and
- Maintaining this pressure range ensures that, on the one hand, moderate temperatures in the bottom outlet are sufficient to deplete the dialkyl fumarate to the desired extent and, on the other hand, the process can still be used on an industrial scale. If the pressure is lower, the gas density becomes too low and the equipment required is therefore so large that the process is disadvantageous from an economic point of view.
- the temperature of the bottom outflow is preferably ⁇ 170 ° C., but at least 20 K above the temperature resulting from the formula (V), particularly preferably it is between 20 K and 40 K above the temperature resulting from the formula ( V) does not give above 170 ° C.
- Aliphatic polycyclic polyamines such as tricyclodecane dismethylamine, can also be used (TCD-diamine) or bis (aminomethyl) norbornane, amino-functional siloxanes, for example diaminopropylsiloxane G10 DAS (from Momentive), fatty alkyl-based amines, such as, for example, fentamines from Solvay, dimer fatty acid diamines such as, for example, Priamine from Croda.
- TCD-diamine tricyclodecane dismethylamine
- bis (aminomethyl) norbornane amino-functional siloxanes
- amino-functional siloxanes for example diaminopropylsiloxane G10 DAS (from Momentive)
- fatty alkyl-based amines such as, for example, fentamines from Solvay
- dimer fatty acid diamines such as, for example, Priamine from Croda.
- diamines which can be used with particular preference are l-amino-3,3,5-trimethyl-5-aminomethylcyclohexane (IPDA), 2,4- and / or 2,6-hexahydrotolylenediamine (H6-TDA), isopropyl-2,4- diaminocyclohexane, and / or isopropyl-2,6-diaminocyclohexane, 1,3-bis (aminomethyl) -cyclohexane, 2,4'- and / or 4,4'-diaminodicyclohexylmethane, 3,3'-dimethyl-4,4 '-diamino-dicyclohexylmethane (Laromin® C 260, BASF AG), the
- AMCA Aminomethyl-1-methylcyclohexylamine
- araliphatic diamines e.g. 1,3-bis (aminomethyl) benzene or m-xylylenediamine.
- Polyamines of the general formula (III) are also preferably used in the process according to the invention, selected from the group: polyether polyamines with aliphatically bound primary amino groups, 1,2 diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane, 1,5-diamino-2-methylpentane, 2,5 diamino-2,5-dimethylhexane, 2,2,4- and / or
- 3,3'-dimethyl-4,4'-diamino-dicyclohexylmethane, 2,4'- and / or 4,4'-diaminodicyclohexylmethane, 1,5-diamino-2-methylpentane are particularly preferred and their use is very particularly preferred of 2,4- and / or 4,4'-diaminodicyclohexyl methane.
- Polyamines of the general formula (III) are particularly preferably used in the process according to the invention, selected from the group: polyether polyamines with aliphatically bound primary amino groups, 1,2 diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane, 1,5-diamino-2-methylpentane, 2,5 diamino-2,5-dimethylhexane, 2,2,4- and / or
- Polyamines of the general formula (III) are very particularly preferably used in the process according to the invention, selected from the group 3,3'-dimethyl-4,4'diaminodicyclohexylmethane, 2,4'- and / or 4,4'-diaminodicyclohexylmethane, l, 5-diamino-2-methylpentane.
- Preferred compounds of the general formula (IV) which are used in the process described above are maleic or fumaric acid esters of the general formula (IV) in which RI and R2 are identical or different organic radicals each having 1 to 18 carbon atoms.
- RI and R2 are preferably, independently of one another, linear or branched alkyl radicals having 1 to 8 carbon atoms, particularly preferably in each case alkyl radicals such as methyl, ethyl, propyl, isopropyl, butyl or isobutyl radicals and very particularly preferred for ethyl.
- maleic acid dimethyl ester diethyl ester, di-n or isopropyl ester, di-n-butyl ester, di-2-ethyl-hexyl ester or the corresponding fumaric acid ester.
- Maleic acid diethyl ester is very particularly preferred.
- the two-component coating compositions according to the invention contain at least one polyisocyanate component B.
- Suitable polyisocyanate components B are organic polyisocyanates with an average NCO functionality of at least 2 and a molecular weight of at least 140 g / mol.
- Unmodified organic polyisocyanates with a molecular weight of 140 to 300 g / mol, paint polyisocyanates with a molecular weight in the range of 300 to 1000 g / mol, and NCO prepolymers containing more than 400 g / mol of urethane, urea and / or allophanate groups are particularly suitable. mol lying molecular weight or mixtures thereof.
- the term “paint polyisocyanates” is to be understood as meaning compounds or mixtures of compounds which can be obtained from simple polyisocyanates by known oligomerization reactions. Suitable oligomerization reactions are e.g. carbodiimidization, dimerization, trimerization, biuretization, urea formation, urethanization, allophanatization and / or cyclization with the formation of oxadiazine structures. In the case of oligomerization, several of the reactions mentioned can take place simultaneously or in succession.
- the "paint polyisocyanates” are preferably biuret polyisocyanates, isocyanurate group-containing polyisocyanates, isocyanurate and uretdione group-containing polyisocyanate mixtures, urethane and / or allophanate group-containing polyisocyanates or isocyanurate and allophanate group-containing polyisocyanates based on simple organic isocyanate groups.
- polyisocyanate component B are the isocyanate group-containing prepolymers based on simple organic polyisocyanates and / or based on paint polyisocyanates on the one hand and organic polyhydroxy compounds with a molecular weight of over 300 g / mol on the other.
- varnish polyisocyanates containing urethane groups are derivatives of low molecular weight polyols in the molecular weight range from 62 to 300 g / mol
- suitable polyols are, for example, ethylene glycol, propylene glycol, trimethylolpropane, glycerol or mixtures of these alcohols
- prepolymer polyhydroxy compounds containing isocyanate groups are prepared using a over 300 g / mol, preferably over 400 g / mol, particularly preferably a molecular weight between 400 and 8000 g / mol, are used.
- Such polyhydroxyl compounds are in particular those which have 2 to 6, preferably 2 to 3, hydroxyl groups per molecule and are selected from the group consisting of ether, ester, thioether, carbonate and polyacrylate polyols and mixtures of such polyols.
- the higher molecular weight polyols mentioned can also be used in mixtures with the lower molecular weight polyols mentioned, so that mixtures of low molecular weight, urethane group containing paint polyisocyanates and higher molecular weight NCO prepolymers, which are also suitable as inventive polyisocyanate component b) result directly .
- Suitable simple organic polyisocyanates are 1,4-diisocyanatobutane, 1,5-diisocyanatopentane, 1,6-diisocyanatohexane (HDI), 1,5-diisocyanato-2,2-dimethylpentane, 2,2,4- and 2, 4,4-trimethyl-1,6-diisocyanatohexane, tetramethylxylylene diisocyanate (TMXDI) 1- isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate, IPDI), 1- isocyanato-1-methyl-4- (3) -isocyanatomethylcyclohexane, dicyclohexylmethane-2,4'- and / or 4,4'-diisocyanate, 1,10-diisocyanatodecane, 1,12-diisocyanatododecane, cyclo
- aliphatic, cycloaliphatic or araliphatic polyisocyanates selected from the group 1,4-diisocyanatobutane, 1,5-diisocyanatopentane, 1,6-diisocyanatohexane (HDI), 1,5-diisocyanato-2,2-dimethylpentane, 2,2 , 4- or 2,4,4-trimethyl-l, 6- diisocyanatohexane, tetramethylxylylene diisocyanate (TMXDI), l-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate, IPDI), l-isocyanato-l- methyl 4- (3) -isocyanatomethylcyclohexane, dicyclohexylmethane-2,4'- and / or 4,4'-diisocyanate, 1,10-diiso
- the two-component composition according to the invention can contain further components which are reactive toward isocyanate groups (components C).
- Such polyhydroxyl compounds are in particular those which have 2 to 6, preferably 2 to 3, hydroxyl groups per molecule and are selected from the group consisting of ether, ester, thioether, carbonate and polyacrylate polyols and mixtures of such polyols.
- the two-component composition according to the invention furthermore contains at least one inorganic and / or organic pigment (component Dl), such as, for example, titanium dioxide, zinc oxide, iron oxides, chromium oxides or carbon black.
- component Dl inorganic and / or organic pigment
- the proportion of pigments in the composition is preferably at least 3% by weight (> 3% by weight), particularly preferably 5 to 40% by weight (> 5 to ⁇ 40% by weight), very particularly preferably 10 to 35% by weight (> 5 to ⁇ 40% by weight), based on the total weight of the two-component composition.
- composition according to the invention can contain further auxiliaries and additives typical for coating technology with polyisocyanate polyaddition compounds, in particular for polyurethane compounds (component D2):
- catalysts / activators such as, for example, titanium, zirconium, bismuth, tin and / or iron-containing catalysts, as described, for example, in WO 05058996. It is also possible to add amines or amidines.
- the proportion of crosslinking catalyst in the composition is preferably 0.001 to 5% by weight (> 0.001 to ⁇ 5% by weight), preferably 0.005 to 2% by weight (> 0.005 to ⁇ 2% by weight), particularly preferred 0.01 to 1% by weight (> 0.01 to ⁇ 1% by weight), based on the total weight of the two-component
- auxiliaries and additives D2 are paint additives such as light stabilizers such as UV absorbers and sterically hindered amines (HALS), furthermore stabilizers, defoaming agents, anti-cratering agents and / or wetting agents, leveling agents, film-forming auxiliaries, reactive thinners, biocides, solvents or substances for rheology control.
- light stabilizers in particular UV absorbers, such as substituted benzotriazoles, S-phenyltriazines or oxalanilides and sterically hindered amines, in particular with 2, 2,6,6-tetramethylpiperidyl structures - referred to as HALS - is described by way of example in A. Valet , Light stabilizers for paints, Vincentz Verlag, Hanover, 1996.
- Stabilizers such as radical scavengers and other polymerization inhibitors such as sterically hindered phenols stabilize paint components during storage and are intended to prevent discoloration during curing.
- Wetting and leveling agents improve surface wetting and / or the flow of paints. Examples are fluorosurfactants, silicone surfactants and special polyacrylates.
- Rheology-controlling additives are important in order to control the properties of the two-component system during application and in the flow phase on the substrate and are known, for example, from patent specifications WO 9422968, EP0276501, EP0249201 or WO 9712945.
- water scavenger such as Triethyl orthoformate, toluenesulfoisocyanate, monooxazolidines or molecular sieves, and anti-hydrolysis agents, such as, for example, carbodiimides
- the proportion of paint additives in the composition is preferably 0.5 to 15% by weight (> 0.5 to ⁇ 15% by weight), preferably 1 to 10% by weight (> 1 to ⁇ 10% by weight) ), particularly preferably 2 to 7% by weight (> 2 to ⁇ 7% by weight), based on the total weight of the two-component composition.
- fillers are, for example, heavy spar, chalk or talc.
- fillers with a barrier effect can be used, e.g. Platelet-shaped sheet silicates or sheet aluminosilicates, graphite, aluminum flakes or barrier pigments such as iron mica and nanofillers such as e.g. Clays and aluminum silicates.
- the fillers can be used alone or in combination.
- the proportion of filler in the coating is preferably 1 to 30% by weight (> 1 to ⁇ 30% by weight), preferably 3 to 20% by weight (> 3 to ⁇ 20% by weight), particularly preferred 5 to 15% by weight (> 5 to ⁇ 15% by weight), based on the total weight of the two-component composition.
- Solvents are also considered auxiliaries and additives D2.
- the solvent can be an organic solvent or a mixture of organic solvents or water or a mixture of organic solvent (s) and water.
- Suitable solvents are to be used in a manner known to the person skilled in the art, tailored to the composition and the application method. Solvents should dissolve the components used and promote their mixing and avoid incompatibilities. Furthermore, during application and curing, they should leave the coating in a manner matched to the crosslinking reaction taking place, so that a solvent-free coating with the best possible appearance and without defects such as pits or pinholes is created. Solvents that are used in two-component technology are particularly suitable.
- organic solvents examples include ketones such as acetone, methyl ethyl ketone or hexanone, esters such as ethyl acetate, butyl acetate, methoxyproyl acetate, substituted glycols and other ethers, aromatics such as xylene or solvent naphtha such as from Exxon-Chemie and mixtures of the solvents mentioned.
- ketones such as acetone, methyl ethyl ketone or hexanone
- esters such as ethyl acetate, butyl acetate, methoxyproyl acetate, substituted glycols and other ethers
- aromatics such as xylene or solvent naphtha such as from Exxon-Chemie and mixtures of the solvents mentioned.
- water is also suitable as a solvent or diluent.
- the proportion of solvent in the composition is preferably 0.5 to 40% by weight (> 0.5 to ⁇ 40% by weight), preferably 1 to 30% by weight (> 1 to ⁇ 30% by weight), particularly preferably 2 to 25% by weight (> 2 to ⁇ 25% by weight), based on the total weight of the two-component composition.
- the ratio of the polyisocyanate component B to the polyaspartic acid ester-containing component A in the composition, based on the amounts of moles of the polyisocyanate groups to the NCO-reactive groups, is preferably from 0.5 to 1.0 to 3.0 to 1.0.
- a ratio of 0.9 to 1.0 to 1.5 to 1.0 is particularly preferred.
- a ratio of 1.05 to 1.0 to 1.25 to 1.0 is very particularly preferred.
- the two-component composition according to the invention is preferably not a foamable or foam-forming composition.
- the composition is preferably not radically polymerizable, especially not photo-polymerizable, i. the composition does not harden through radical processes, in particular not through radical polymerization processes which are initiated by actinic radiation.
- the two-component coating composition according to the invention is produced by methods known per se in the technology of lacquers and coatings.
- An isocyanate-reactive (R) and an isocyanate-containing component (H) are first produced separately by mixing the respective isocyanate-reactive components A and C, or by mixing the respective polyisocyanate components B.
- the auxiliaries and additives D1 and D2 are preferably added to the isocyanate-reactive component R.
- the components R and H produced in this way are only mixed immediately before or during application. If mixing takes place before application, it must be ensured that the reaction of the components starts after mixing. Depending on the choice of components and additives, the reaction will take place at different speeds.
- the processing time within which the composition must be applied also referred to as the pot life and defined as the time from the mixing of the components to doubling the initial viscosity and / or the flow time (determined in accordance with DIN EN ISO 2431: 2012-03, but using a DIN 4 flow cup), then takes between 1 minute and 24 hours, usually in the range of 10 minutes to 8 hours, depending on the selection of the components.
- the pot life is determined by methods known to those skilled in the art.
- the isocyanate-reactive components are mixed, optionally accompanied by or followed by dispersion, and then rubbed.
- the latter can be done using a bead mill, for example.
- the grinding can be followed by a sieving step.
- the invention also relates to a method for coating a substrate, which comprises at least the following steps: i) applying the two-component coating described above
- the substrates can already be completely or partially coated with one or more layers of lacquer. These lacquer layers can still be uncured or moist, partially cured or fully cured, and the further lacquer layers on the substrate are preferably partially or fully cured.
- lacquer layers are primers, primers, fillers, fillers, base lacquers or substrates that have already been completely lacquered, which are coated again after any pretreatment such as sanding or plasma activation.
- the two-component coating compositions are used in particular to produce coatings for corrosion protection, general industrial painting and for use in the ACE (Agriculture, Construction and Earth moving equipment) sector.
- the coatings are preferably top coatings.
- preferred objects of the present invention are therefore the use of the above-described two-component coating compositions for producing top coatings on substrates, the above-described method for coating substrates with these top coatings, and the coated substrates themselves obtainable in this way.
- top coatings in the field of corrosion protection, general industrial painting or as ACE coatings.
- the coating composition can be applied by conventional application methods. Examples of application methods are brushing, brushing, roller application, knife coating, dipping and spraying; spray application is preferred.
- application methods are brushing, brushing, roller application, knife coating, dipping and spraying; spray application is preferred.
- spray application is preferred.
- the curing or drying of the inventive compounds follows Composition on the substrate or object. This takes place according to the methods customary in coating technology either under ambient conditions with regard to temperature and humidity or under forced conditions, for example by increasing the temperature in ovens, using radiation such as infrared, near-infrared or microwave radiation, and using dehumidified and / or heated air or others Gases. It is preferable to forego the use of devices for forced curing.
- the applied coating composition is cured, for example, at temperatures from -20 to 100 ° C, preferably from -10 to 80 ° C, more preferably from 0 to 60 ° C and most preferably from 10 to 40 ° C. Although not preferred, lower cure temperatures can also be used but will result in longer cure times.
- composition it is also possible, although not preferred, to cure the composition at higher temperatures, for example 80 to 160 ° C. or higher. After the first coating has hardened, a further coating can be applied and also hardened.
- Another object of the invention is the use of the two-component coating compositions for the production of gloss-stable coatings.
- PACM 20 a mixture of 2,4 and 4,4'-diaminodicyclohexyl methane, manufactured by Evonik
- Desmodur N 3600 a low-viscosity HDI trimer with approx. 23% NCO and ⁇ 0.25% free HDI, manufacturer Covestro
- Desmodur XP 2489 an aliphatic polyisocyanate based on HDI and isophorone diisocyanate trimer with approx. 21% NCO, manufacturer Covestro
- UOP F powder molecular sieve, Honeywell UOP, USA
- Disperbyk 163 Dispersant, Byk-Chemie GmbH, Germany
- Titanium dioxide R-KB-4 pigment, various suppliers
- Chromium oxide green GN pigment, various suppliers
- Iron oxide yellow 415 pigment, various suppliers
- Heucophos® ZPA Corrosion protection pigment, Heubach GmbH, Germany
- Barite EWO barite filler, Sachtleben, Germany
- Microtalc IT Extra Talc filler, Mondo Minerals, the Netherlands
- CAB-O-SIL TS 720 Rheology additive, Cabot Airgel, Germany
- Tinuvin 292 light stabilizer, BASF, Germany
- Solvent Solvesso 100, 1-methoxy-2-propyl acetate (MPA) and butyl acetate (BA), Azelis, Germany
- Diethyl fumarate contents were determined quantitatively using a GC method with an internal standard.
- a 6890 gas chromatograph from Agilent with a standard GC capillary (100% polysiloxane phase) and an FID detector was used.
- the temperature of the injector (split outlet) was 180 ° C., and helium was used as the carrier gas.
- the limit of quantification for this method was 300 ppm.
- GC-MS measurements were made with a 6890 gas chromatograph and mass spectrum detector 5973 from Agilent with standard ionization (electron impact) with 70 eV, a standard GC capillary (100% polysiloxane phase) and split injection at 250.degree Injector temperature carried out. The% areas of the gas chromatogram were evaluated. All viscosity measurements were carried out with a Physica MCR 51 rheometer from Anton Paar Germany GmbH (Germany) according to DIN EN ISO 3219: 1994-10 at 23 ° C.
- the Hazen color numbers were determined on a LICO 400 color measuring device from Hach Fange GmbH (Germany) in accordance with DIN EN ISO 6271: 2016-05.
- the amine numbers were determined titrimetrically in accordance with EN ISO 9702: 1998 (perchloric acid method) with the exception that the results were given as amine numbers.
- the amine number in mg KOH / g was calculated using the following equation:
- the pot life was defined as the time it took for the viscosity to double.
- the gloss values were determined using a reflectometer in accordance with the DIN EN ISO 2813: 2015-02 standard.
- the pendulum hardness was measured in accordance with DIN EN ISO 1522: 2007-04 using a König pendulum on glass.
- the spray application was carried out with a spray gun of the type SATAjet RP 3000 with a SATA spray nozzle 1.6 mm at a pressure of approx. 2.1 to 2.2 bar. It was painted in the existing room climate (slight fluctuations in temperature and humidity possible).
- Salt spray test was carried out in accordance with DIN EN ISO 9227: 2012-09 using the NSS method on samples scratched in accordance with ISO 17872.
- One-layer and two-layer top coatings were applied to a steel sheet (blasted SA 2Vi).
- the delamination and corrosion were assessed according to ISO 4628-8: 2012-3.
- the front pull test was carried out according to DIN EN ISO 4624: 2016-08 procedure B.
- the tensile stress and the type of break were determined according to the following criteria:
- the top coats were produced at room temperature by placing the constituents of component 1 in a cooled vessel (double-walled vessel with external cooling by cold tap water) and predispersing them at approx. 600-800 rpm with a dissolver and then grinding them in a bead mill and then sifted. Component 1 was processed after one day of maturation.
- a cooled vessel double-walled vessel with external cooling by cold tap water
- Component 2 was then added with slow stirring (approx. 600-800 rpm) and then at 2000 rpm for 1 minute (coatings 1) or 2800 rpm. dispersed for 30 minutes (Coatings 2).
- Coatings 1 Single-layer construction
- top coatings used were applied with the spray application described to a sheet steel (blasted SA 2Vi) or a sanded aluminum plate and applied at 23 ° C / 50% rel. Humidity dried.
- polyaspartic acid esters PAS 1, 2, 3 and PAS 5 were formulated into topcoats as shown in Tables 1 and 7.
- the coating compositions according to the invention have faster drying and at the same time a longer pot life in comparison to the coating composition based on conventional polyaspartic esters.
- the coating compositions according to the invention shown in Table 3 also have a longer pot life with constant rapid drying.
- the coating compositions according to the invention show a slower decrease in gloss and a higher or at least as high residual gloss compared to the coating composition based on conventional polyaspartic esters.
- Table 7 Composition of the top coats 2
- Table 8 confirms that the coating compositions according to the invention are not only distinguished by good chemical resistance but also by faster drying and at the same time a longer pot life compared to the coating composition based on conventional polyaspartic esters.
- the cured coatings 9 to 14 were then subjected to both a condensation water test and a salt spray test.
- the cured coatings 9 to 14 were then exposed to weathering.
- top coatings 2 based on coating compositions according to the invention are also characterized by a slower decrease in gloss and a higher or at least equal residual gloss compared to the top coatings 2 based on conventional polyaspartic esters.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19158883.9A EP3699218A1 (fr) | 2019-02-22 | 2019-02-22 | Nouveaux systèmes de revêtement de plafond bicomposants contenant des esters d'acide polyaspartique |
PCT/EP2020/054419 WO2020169701A1 (fr) | 2019-02-22 | 2020-02-20 | Nouveaux systèmes de revêtement de finition à deux composants contenant des esters de poly(acide aspartique) |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3927757A1 true EP3927757A1 (fr) | 2021-12-29 |
Family
ID=65529558
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19158883.9A Ceased EP3699218A1 (fr) | 2019-02-22 | 2019-02-22 | Nouveaux systèmes de revêtement de plafond bicomposants contenant des esters d'acide polyaspartique |
EP20705080.8A Pending EP3927757A1 (fr) | 2019-02-22 | 2020-02-20 | Nouveaux systèmes de revêtement de finition à deux composants contenant des esters de poly(acide aspartique) |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP19158883.9A Ceased EP3699218A1 (fr) | 2019-02-22 | 2019-02-22 | Nouveaux systèmes de revêtement de plafond bicomposants contenant des esters d'acide polyaspartique |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220145121A1 (fr) |
EP (2) | EP3699218A1 (fr) |
JP (1) | JP2022521250A (fr) |
KR (1) | KR20210131331A (fr) |
CN (1) | CN113412293B (fr) |
WO (1) | WO2020169701A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11667747B2 (en) | 2019-03-19 | 2023-06-06 | Covestro Intellectual Property Gmbh & Co. Kg | Binders containing secondary amine groups, based on cyclic ethers |
EP4137524A1 (fr) * | 2021-08-17 | 2023-02-22 | Covestro Deutschland AG | Nouveaux systèmes de revêtement à deux composants contenant des esters d'acide polyasparagique |
CN116891671B (zh) * | 2023-09-11 | 2023-11-17 | 成都石大力盾科技有限公司 | 一种防垢防腐涂料及其制备方法 |
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2019
- 2019-02-22 EP EP19158883.9A patent/EP3699218A1/fr not_active Ceased
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2020
- 2020-02-20 EP EP20705080.8A patent/EP3927757A1/fr active Pending
- 2020-02-20 KR KR1020217026189A patent/KR20210131331A/ko unknown
- 2020-02-20 US US17/430,746 patent/US20220145121A1/en active Pending
- 2020-02-20 JP JP2021549100A patent/JP2022521250A/ja active Pending
- 2020-02-20 WO PCT/EP2020/054419 patent/WO2020169701A1/fr unknown
- 2020-02-20 CN CN202080015272.2A patent/CN113412293B/zh active Active
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WO2001007504A1 (fr) * | 1999-07-23 | 2001-02-01 | Bayer Corporation | Preparation in situ d'un melange d'esters polyaspartiques |
US20050059792A1 (en) * | 2003-09-17 | 2005-03-17 | Roesler Richard R. | Flexibilized polyaspartic esters |
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Also Published As
Publication number | Publication date |
---|---|
KR20210131331A (ko) | 2021-11-02 |
EP3699218A1 (fr) | 2020-08-26 |
CN113412293A (zh) | 2021-09-17 |
JP2022521250A (ja) | 2022-04-06 |
WO2020169701A1 (fr) | 2020-08-27 |
US20220145121A1 (en) | 2022-05-12 |
CN113412293B (zh) | 2023-08-29 |
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