NO763253L - PROPYLENE POLYMER ATTACHED TO AN ENAMEL LACQUER COATED METAL SURFACE. - Google Patents
PROPYLENE POLYMER ATTACHED TO AN ENAMEL LACQUER COATED METAL SURFACE.Info
- Publication number
- NO763253L NO763253L NO763253A NO763253A NO763253L NO 763253 L NO763253 L NO 763253L NO 763253 A NO763253 A NO 763253A NO 763253 A NO763253 A NO 763253A NO 763253 L NO763253 L NO 763253L
- Authority
- NO
- Norway
- Prior art keywords
- enamel
- coating
- carboxyl
- resin
- weight
- Prior art date
Links
- 229920001155 polypropylene Polymers 0.000 title claims description 113
- 210000003298 dental enamel Anatomy 0.000 title claims description 100
- 239000004922 lacquer Substances 0.000 title claims description 82
- 229910052751 metal Inorganic materials 0.000 title claims description 47
- 239000002184 metal Substances 0.000 title claims description 47
- -1 polypropylene Polymers 0.000 claims description 95
- 229920005989 resin Polymers 0.000 claims description 86
- 239000011347 resin Substances 0.000 claims description 86
- 239000004743 Polypropylene Substances 0.000 claims description 82
- 238000000034 method Methods 0.000 claims description 54
- 238000000576 coating method Methods 0.000 claims description 49
- 239000011248 coating agent Substances 0.000 claims description 46
- 239000002320 enamel (paints) Substances 0.000 claims description 38
- 238000002360 preparation method Methods 0.000 claims description 38
- 239000002904 solvent Substances 0.000 claims description 32
- 239000003822 epoxy resin Substances 0.000 claims description 25
- 229920000647 polyepoxide Polymers 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 24
- 239000007787 solid Substances 0.000 claims description 21
- 150000008064 anhydrides Chemical class 0.000 claims description 13
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 150000001298 alcohols Chemical class 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical group CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229940055577 oleyl alcohol Drugs 0.000 claims description 8
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims description 5
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N 1-tetradecanol group Chemical group C(CCCCCCCCCCCCC)O HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 claims description 4
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical group CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 claims description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol group Chemical group C(CCCCCCCCCCCCCCC)O BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims description 4
- BTFJIXJJCSYFAL-UHFFFAOYSA-N icosan-1-ol Chemical group CCCCCCCCCCCCCCCCCCCCO BTFJIXJJCSYFAL-UHFFFAOYSA-N 0.000 claims description 4
- 239000003350 kerosene Substances 0.000 claims description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical group CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical group CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical group CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 229960000541 cetyl alcohol Drugs 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229940087291 tridecyl alcohol Drugs 0.000 claims description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims 7
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 claims 4
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229940043348 myristyl alcohol Drugs 0.000 claims 1
- 239000006185 dispersion Substances 0.000 description 15
- 238000000926 separation method Methods 0.000 description 12
- 239000002253 acid Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229920003180 amino resin Polymers 0.000 description 10
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 8
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical group CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 7
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 239000005029 tin-free steel Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical class O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 150000002576 ketones Chemical class 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- YWWVWXASSLXJHU-AATRIKPKSA-N (9E)-tetradecenoic acid Chemical compound CCCC\C=C\CCCCCCCC(O)=O YWWVWXASSLXJHU-AATRIKPKSA-N 0.000 description 2
- PJLHTVIBELQURV-UHFFFAOYSA-N 1-pentadecene Chemical compound CCCCCCCCCCCCCC=C PJLHTVIBELQURV-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 235000013877 carbamide Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 150000003944 halohydrins Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical class NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- LQERIDTXQFOHKA-UHFFFAOYSA-N nonadecane Chemical compound CCCCCCCCCCCCCCCCCCC LQERIDTXQFOHKA-UHFFFAOYSA-N 0.000 description 2
- NMRPBPVERJPACX-UHFFFAOYSA-N octan-3-ol Chemical compound CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- YCOZIPAWZNQLMR-UHFFFAOYSA-N pentadecane Chemical compound CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- NYBCZSBDKXGAGM-DOFZRALJSA-N (5Z,8Z,11Z,14Z)-icosatetraen-1-ol Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCCO NYBCZSBDKXGAGM-DOFZRALJSA-N 0.000 description 1
- JXNPEDYJTDQORS-HZJYTTRNSA-N (9Z,12Z)-octadecadien-1-ol Chemical compound CCCCC\C=C/C\C=C/CCCCCCCCO JXNPEDYJTDQORS-HZJYTTRNSA-N 0.000 description 1
- DEWLEGDTCGBNGU-UHFFFAOYSA-N 1,3-dichloropropan-2-ol Chemical compound ClCC(O)CCl DEWLEGDTCGBNGU-UHFFFAOYSA-N 0.000 description 1
- LCVCUJWKJNFDMY-UHFFFAOYSA-N 2,2-diphenylpropane-1,1-diol Chemical compound C=1C=CC=CC=1C(C(O)O)(C)C1=CC=CC=C1 LCVCUJWKJNFDMY-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 1
- JZXKITOPOHIFEA-UHFFFAOYSA-N 4-methylpentan-2-one;propan-2-one Chemical compound CC(C)=O.CC(C)=O.CC(C)CC(C)=O JZXKITOPOHIFEA-UHFFFAOYSA-N 0.000 description 1
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical class NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- YWWVWXASSLXJHU-UHFFFAOYSA-N 9E-tetradecenoic acid Natural products CCCCC=CCCCCCCCC(O)=O YWWVWXASSLXJHU-UHFFFAOYSA-N 0.000 description 1
- GSAAJQNJNPBBSX-WAYWQWQTSA-N 9Z-Tetradecen-1-ol Chemical compound CCCC\C=C/CCCCCCCCO GSAAJQNJNPBBSX-WAYWQWQTSA-N 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 229920000877 Melamine resin Chemical class 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 235000021319 Palmitoleic acid Nutrition 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- NJYZCEFQAIUHSD-UHFFFAOYSA-N acetoguanamine Chemical class CC1=NC(N)=NC(N)=N1 NJYZCEFQAIUHSD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- NIDNOXCRFUCAKQ-UHFFFAOYSA-N bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2C(O)=O NIDNOXCRFUCAKQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N butyric aldehyde Natural products CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- KJDZDTDNIULJBE-QXMHVHEDSA-N cetoleic acid Chemical compound CCCCCCCCCC\C=C/CCCCCCCCCC(O)=O KJDZDTDNIULJBE-QXMHVHEDSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 1
- DIOQZVSQGTUSAI-NJFSPNSNSA-N decane Chemical compound CCCCCCCCC[14CH3] DIOQZVSQGTUSAI-NJFSPNSNSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical class O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- JXNPEDYJTDQORS-UHFFFAOYSA-N linoleyl alcohol Natural products CCCCCC=CCC=CCCCCCCCCO JXNPEDYJTDQORS-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- LBIYNOAMNIKVKF-FPLPWBNLSA-N palmitoleyl alcohol Chemical compound CCCCCC\C=C/CCCCCCCCO LBIYNOAMNIKVKF-FPLPWBNLSA-N 0.000 description 1
- LBIYNOAMNIKVKF-UHFFFAOYSA-N palmitoleyl alcohol Natural products CCCCCCC=CCCCCCCCCO LBIYNOAMNIKVKF-UHFFFAOYSA-N 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- JIYNFFGKZCOPKN-UHFFFAOYSA-N sbb061129 Chemical compound O=C1OC(=O)C2C1C1C=C(C)C2C1 JIYNFFGKZCOPKN-UHFFFAOYSA-N 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- IMTKRLUCQZWPRY-UHFFFAOYSA-N triazine-4-carbaldehyde Chemical compound O=CC1=CC=NN=N1 IMTKRLUCQZWPRY-UHFFFAOYSA-N 0.000 description 1
- VQOXUMQBYILCKR-UHFFFAOYSA-N tridecaene Natural products CCCCCCCCCCCC=C VQOXUMQBYILCKR-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
- C08J5/124—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives using adhesives based on a macromolecular component
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/166—Metal in the pretreated surface to be joined
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
Description
Den foreliggende oppfinnelse vedrorer generelt til The present invention generally relates to
å feste en propylenpolymer til en emaljelakk-belagt metalloverflate og nærmere bestemt til å tilveiebringe en varmeforsegling mellom overflatene. to attach a propylene polymer to an enamel lacquer coated metal surface and more specifically to provide a heat seal between the surfaces.
Beholdere som er lette å åpne er kjent. Disse beholdere består vanligvis av metall og de har minst en helleåpning. Helleåpningen utgjor vanligvis bare en del av endestykket av beholderen. Hittil har helleåpningen vanligvis blitt dannet ved en opprissing som definerer en rivestrimmel. En gripering er festet til rivestrimmelen og med anvendelse av kraft, vil griperingen fore til at rivestrimmelen skilles fra endestykket langs risselinjen. Containers which are easy to open are known. These containers are usually made of metal and they have at least one pouring opening. The pouring opening usually forms only part of the end piece of the container. Heretofore, the pouring opening has usually been formed by a tear-off defining a tear strip. A gripper ring is attached to the tear strip and with the application of force, the gripper ring will cause the tear strip to separate from the end piece along the tear line.
Selv om beholdere som er lette å åpne er blitt aksep-tert av publikum, har fremdeles denne type beholdere ulemper. Although containers that are easy to open have been accepted by the public, this type of container still has disadvantages.
En av disse ulemper er at rivestrimmelen som rives fra endestykket i beholderen har skarpe kanter slik at når den kastes på bakken eller på annen måte plaseres på en uhensiktsmessig måte, representerer en umlempe ved at publikum kan bli skadet. One of these disadvantages is that the tear strip which is torn from the end piece in the container has sharp edges so that when it is thrown on the ground or otherwise placed in an inappropriate manner, it represents an inconvenience in that the public may be injured.
Det er blitt foreslått, f.eks. i U.S. patent nr. 3.616.047 å erstatte rivestrimmelen av metall med en lukkeinnretning med et plastlag for å fjerne faren for at noen skjærer seg ved at den delen som fjernes fra beholderen ikke har skarpe kanter. Lukkeinnretningen som i sin helhet er fremstilt av en termoplastharpiks såsom polypropylen eller et laminat av harpiks og metallfolie såsom aluminium eller stål varmeforsegles til overflaten av et emaljelakk-belagt endestykke som har minst én åpning. Den emaljelakk-belagte overflate av endestykket i beholderen er blitt belagt med et varmeaktiverbart lag som inneholder en karboksylmodifisert polypropylenharpiks som f It has been suggested, e.g. in the U.S. patent No. 3,616,047 to replace the metal tear strip with a closure device with a plastic layer to eliminate the danger of someone cutting themselves by the part being removed from the container not having sharp edges. The closure device, which is made entirely of a thermoplastic resin such as polypropylene or a laminate of resin and metal foil such as aluminum or steel, is heat-sealed to the surface of an enamel lacquer-coated end piece having at least one opening. The enamelled surface of the end piece in the container has been coated with a heat-activatable layer containing a carboxyl-modified polypropylene resin such as
fremmer binding. promotes bonding.
Selv om lukkeinnretningene som inneholder plast fra U.S. patent nr. 3.616.047 effektivt kan bindes til ende-stykkene i metallboksen, oppstår der problemer ved påfbring av det karboksylmodifiserte polypropylenlag til en emalje-lakkert metalloverflate. Although the closures containing plastic from the U.S. patent no. 3,616,047 can be effectively bonded to the end pieces in the metal box, problems arise when applying the carboxyl-modified polypropylene layer to an enamel-lacquered metal surface.
Når karboksylmodifisert polypropylenharpiks anvendes som et lag for å fremme sammenbinding for å knytte propylenpolymerlaget i lukkeinnretningen til en emaljelakk-belagt ende i metallboksen, påfores den karboksylmodifiserte polypropylenharpiks som en dispersjon i et flyktig organisk opplosnings-middel såsom kerosen. Den karboksylmodifiserte polypropylenharpiks som anvendes for å fremstille dispersjonen har vanligvis en partikkelstbrrelse på fra 0,1-5 mikron og på det nå-værende tidspunkt er dette et relativt kostbart harpiksmateri-ale. Selv om bare små mengder av den modifiserte harpiks er nodvendig for å fremstille et lag som fremmer sammenbindingen, er påforingen av den modifiserte harpiks i fortynnet dispersjon, f.eks. 10% faste stoffer, utilfredsstillende idet slike fortynnede dispersjoner ikke har de nodvendige fysiske egenskaper såsom viskositet og flyteevne som kreves for å påfbre dispersjonen ved anvendelse av vanlig beleggingsutstyr f.eks. ved valsebelegging. For å få en dispersjon som har de nodvendige fysiske egenskaper for kommersiell belegging, tilfores polypropylenharpikspulveret med ca. samme partikkelstorrelse, dvs. fra 0,1 - 5 mikron til dispersjonen for å heve innholdet av faste stoffer til ca. 20% slik at dispersjonen får de flyte-og viskositetsegenskaper som kreves i kommersielle beleggings-metoder. En ulempe ved anvendelsen av polypropylengarpikser med slike partikkelstorrelser er at det er vanskelig å fremstille partikkelstorrelser på under 1 mikron og slike harpikser er det derfor begrenset kommersiell tilgang på. When carboxyl-modified polypropylene resin is used as a bond-promoting layer to bond the propylene polymer layer in the closure to an enamel lacquer-coated end in the metal box, the carboxyl-modified polypropylene resin is applied as a dispersion in a volatile organic solvent such as kerosene. The carboxyl-modified polypropylene resin used to prepare the dispersion usually has a particle size of from 0.1-5 microns and at the present time this is a relatively expensive resin material. Although only small amounts of the modified resin are required to produce a layer which promotes bonding, the application of the modified resin in a dilute dispersion, e.g. 10% solids, unsatisfactory as such diluted dispersions do not have the necessary physical properties such as viscosity and fluidity which are required to apply the dispersion using ordinary coating equipment, e.g. by roller coating. In order to obtain a dispersion that has the necessary physical properties for commercial coating, the polypropylene resin powder is added with approx. same particle size, i.e. from 0.1 - 5 microns to the dispersion to raise the solids content to approx. 20% so that the dispersion has the flow and viscosity properties required in commercial coating methods. A disadvantage of the use of polypropylene resins with such particle sizes is that it is difficult to produce particle sizes of less than 1 micron and there is therefore limited commercial access to such resins.
I overensstemmelse med foreliggende oppfinnelse varmeforsegles et propylenpolymerlag til en metalloverflate belagt med et emaljelakk-beH^g hvor der er tilfort en mengde karboksylmodifisert polypropylenharpiks som fremmer sammen-føyningen. In accordance with the present invention, a propylene polymer layer is heat-sealed to a metal surface coated with an enamel lacquer coating to which a quantity of carboxyl-modified polypropylene resin has been added which promotes joining.
Den karboksylmodifiserte polypropylenharpiks tilfores fortrinnsvis emaljelakkeringsmidiet opplost i et opplosnings-middel valgt fra organiske syrer, alkoholer og hydrokarboner med minst 10 karbonatomer og opplbsningsmidlet oppvarmes til en temperatur på over 100°C ved tilsatsen. The carboxyl-modified polypropylene resin is preferably added to the enamel coating medium dissolved in a solvent selected from organic acids, alcohols and hydrocarbons with at least 10 carbon atoms and the solvent is heated to a temperature of over 100°C during the addition.
Mengden karboksylmodifisert polypropylen som tilfores emaljelakkeringsmidlet er Vanligvis i området fra 0,01 - 5 vektprosent av innholdet av faste stoffer i eiemaljelakker-ingsmidlet og den karboksylmodifiserte polypropylenharpiks tilfores fortrinnsvis emaljelakkeringsmidlet ved en konsentrasjon i området fra ca. 0,1 til ca. 3 vektprosent av innholdet av faste stoffer i emaljelakkeringsmidlet. The amount of carboxyl-modified polypropylene that is added to the enamel coating agent is usually in the range from 0.01 - 5 percent by weight of the content of solids in the proprietary enamel coating agent and the carboxyl-modified polypropylene resin is preferably added to the enamel coating agent at a concentration in the range from approx. 0.1 to approx. 3 percent by weight of the content of solids in the enamel varnish.
Fremgangsmåten ifolge den foreliggende oppfinnelse eliminerer behovet for å tilfore spesielle polypropylen/karboksylmodifiserte polypropylendispersjoner for å få en varmeforsegling av propylenpolymerlaget til de emaljelakkerte metalloverflater. The method according to the present invention eliminates the need to add special polypropylene/carboxyl-modified polypropylene dispersions to obtain a heat seal of the propylene polymer layer to the enamelled metal surfaces.
Ved fremgangsmåten ifolge den foreliggende oppfinnelse kan propylenpolymerlagene bindes direkte til den emaljelakkerte metalloverflate uten å innfore et spesielt tilknytningsfremmende lag mellom propylenpolymerlaget og det emaljelakk-belagte metallaget slik som man tidligere har gjort. Fig. 1 viser en beholder som har en struktur for lett åpning utstyrt med en laminert lukkeinnretning som inneholder et propylenpolymerlag, sett ovenfra. Fig. 2 er et forstorret tverrsnitt langs linjene 2-2 i fig. 1 som viser lukkeinnretningen festet til overflaten av endestykket i overensstemmelse med foreliggende oppfinnelse. Fig. 3 viser en beholder som har en overlappende sidesom sett fra siden. Fig. 4 er et tverrsnitt langs linjene 4-4 i fig. 3 og som viser sidesbmmen i detalj. In the method according to the present invention, the propylene polymer layers can be bonded directly to the enamel lacquered metal surface without introducing a special bond-promoting layer between the propylene polymer layer and the enamel lacquer-coated metal layer, as has been done previously. Fig. 1 shows a container having an easy opening structure equipped with a laminated closure device containing a propylene polymer layer, seen from above. Fig. 2 is an enlarged cross-section along the lines 2-2 in fig. 1 which shows the closure device attached to the surface of the end piece in accordance with the present invention. Fig. 3 shows a container which has an overlapping side as seen from the side. Fig. 4 is a cross-section along the lines 4-4 in fig. 3 and which shows the page layout in detail.
Den karboksylmodifiserte polypropylen som anvendes The carboxyl-modified polypropylene used
i den foreliggende oppfinnelse fremstilles ved å pode en umettet dikarboksylsyre eller anhydrid til et polypropylenskjelett under anvendelse av hbyenergetisk bestråling eller en peroksy-katalysator som beskrevet i britisk patent nr. 1.020.740. Umettede dikarboksylsyrer eller anhydrider som kan anvendes for å fremstille dikarboksylmodifiserte polypropylenharpikser om- in the present invention is produced by grafting an unsaturated dicarboxylic acid or anhydride to a polypropylene skeleton using high-energy irradiation or a peroxy catalyst as described in British patent no. 1,020,740. Unsaturated dicarboxylic acids or anhydrides that can be used to produce dicarboxyl-modified polypropylene resins re-
fatter maleinsyre, tetrahydroftalsyre, fumarsyre, itakoninsyre, nadinsyre, metylnadinsyre og deres anhydrider, og maleinsyreanhydrid er foretrukket. includes maleic acid, tetrahydrophthalic acid, fumaric acid, itaconic acid, nadic acid, methylnadic acid and their anhydrides, and maleic anhydride is preferred.
Mengden av umettet dikarboksylsyre eller anhydrid som kan podes på polypropylenskjelettet varierer fra ca. 0,05 til ca. 10 vektprosent beregnet på grunnlag av den totale vekt av den podede polymer og generelt varierer mengden av podet dikarboksylsyre eller anhydrid fra 0,5 til ca. 5,0 %. The amount of unsaturated dicarboxylic acid or anhydride that can be grafted onto the polypropylene skeleton varies from approx. 0.05 to approx. 10% by weight calculated on the basis of the total weight of the grafted polymer and generally the amount of grafted dicarboxylic acid or anhydride varies from 0.5 to approx. 5.0%.
Når den karboksylmodifiserte polypropylenharpiks anvendes som et tilsatsmiddel for å fremme sammenfbyning for emaljelakk-belegg, kan harpiksen ha en hvilken som helst partikkelstbrrelse og vanligvis er partikkeTstbrrelsen fra 0,05 til 50 mikron og fortrinnsvis fra 35 - 40 mikron. When the carboxyl modified polypropylene resin is used as an additive to promote bonding for enamel lacquer coatings, the resin may have any particle size and usually the particle size is from 0.05 to 50 microns and preferably from 35 to 40 microns.
Emaljelakk-beliggeå: hvor den karboksylmodifiserte polypropylenharpiks tilfores er vanligvis et beleggingsmiddel av epoksyharpiks som inneholder en varmeaktiverbar aminoplast-fornetningsharpiks. Enamel coating: where the carboxyl-modified polypropylene resin is supplied is usually an epoxy resin coating agent containing a heat-activatable aminoplast cross-linking resin.
De aminoplastkondensater som anvendes i den foreliggende oppfinnelse er urea-aldehyd og triazin-aldehydharpikser og alkoholmodifiserte derivater av disse, dvs. alkylerte amino-harpikser hvor alkylradikalet inneholder fra 2-8 karbonatomer. Slike aminoplastharpikser er reaksjonsprodukter av aldehyder, f.eks. formaldehyd, acetaldehyd og lignende, med urea, substituerte ureaer, thioureaer, etylenurea, melamin, benzo-quanamin, acetoguanamin og lignende. RDe resulterende metylol-substituerte produkter eterifiseres med alkoholer, f.eks. isopropanol, butanol og 2-etyl-heksanol for å tilveiebringe stabi-litet og organisk opplbselighet. Slike organisk opplbselige aminoplastharpikser er tenkt anvendt i den foreliggende oppfinnelse og butylerte ureaformaldehydharpikser er foretrukket for fremgangsmåten ifolge den foreliggende oppfinnelse. The aminoplast condensates used in the present invention are urea-aldehyde and triazine-aldehyde resins and alcohol-modified derivatives thereof, i.e. alkylated amino-resins where the alkyl radical contains from 2-8 carbon atoms. Such aminoplast resins are reaction products of aldehydes, e.g. formaldehyde, acetaldehyde and the like, with urea, substituted ureas, thioureas, ethylene urea, melamine, benzoguanamine, acetoguanamine and the like. RThe resulting methylol-substituted products are etherified with alcohols, e.g. isopropanol, butanol and 2-ethylhexanol to provide stability and organic solubility. Such organically soluble aminoplast resins are intended to be used in the present invention and butylated urea formaldehyde resins are preferred for the method according to the present invention.
De epoksyharpikser som anvendes i den foreliggende oppfinnelse er det polymere reaksjonsprodukt av polyfunksjonel-le halogenhydriner med flerverdige fenoler med den strukturelle formel: The epoxy resins used in the present invention are the polymeric reaction product of polyfunctional halohydrins with polyhydric phenols with the structural formula:
hvor X er antall kondenserte molekyler. Typiske polyfuriksjo-nelle halogenhydriner er epiklorhydrin, glyceroldiklorhydrin og lignende. Typiske flerverdige fenoler er resorcinol og 2, 2-bis(4-hydr'oksyf enyl)alkan, hvor den sistnevnte skriver seg fra kondensasjon av fenoler med aldehyder og ketoner deriblant formaldehyd, acetaldehyd, propionaldehyd, aceton, metyletylketon og lignende som forer til slike forbindelser som 2,2-bis(4-hydroksyfenyl)propan og lignende forbindelser. Disse epoksyharpikser inneholder vanligvis epoksygrupper på enden, men de kan inneholde epoksygrupper og" hydroksylgrupper på enden. where X is the number of condensed molecules. Typical polyfunctional halohydrins are epichlorohydrin, glycerol dichlorohydrin and the like. Typical polyhydric phenols are resorcinol and 2, 2-bis(4-hydroxyphenyl)alkane, where the latter is formed from the condensation of phenols with aldehydes and ketones including formaldehyde, acetaldehyde, propionaldehyde, acetone, methyl ethyl ketone and the like leading to such compounds such as 2,2-bis(4-hydroxyphenyl)propane and similar compounds. These epoxy resins usually contain epoxy groups at the end, but they may contain epoxy groups and hydroxyl groups at the end.
Molekylvekten på epoksyharpikser kan kontrolleres The molecular weight of epoxy resins can be controlled
ved de relative andeler av reaktanter såvel som av reaksjons-graden. by the relative proportions of reactants as well as by the degree of reaction.
I den foreliggende oppfinnelse anvendes: epoksyharpikser med relativt hoy molekylvekt for å fremstille emaljelakk-beleggene. Vanligvis kan epoksyharpikser som har en gjennomsnittlig molekylvket i området 1400 - 5000 anvendes. In the present invention, epoxy resins with a relatively high molecular weight are used to produce the enamel lacquer coatings. Generally, epoxy resins having an average molecular weight in the range of 1400 - 5000 can be used.
Epoksyharpikser er kommersielt tilgjengelige. Foretrukne eksempler er "Epon 1004" og "Epon 1007" som fremstilles av Shell Chemical Company og som er kondensasjonsprodukter av epiklorhydrin og "Bisphenol A" (dihydroksy-difenyl-dimetyl-metan) og som henholdsvis har et epoksyinnhold på 875 til 1025 og 2500 til 4000 gram prove pr. grammol epoksygruppe (gram/grammol). Den gjennomsnittlige molekylvekt på en epoksyharpiks er ca. Epoxy resins are commercially available. Preferred examples are "Epon 1004" and "Epon 1007" which are manufactured by Shell Chemical Company and which are condensation products of epichlorohydrin and "Bisphenol A" (dihydroxy-diphenyl-dimethyl-methane) and which respectively have an epoxy content of 875 to 1025 and 2500 to 4,000 grams of sample per grammole epoxy group (gram/grammole). The average molecular weight of an epoxy resin is approx.
to ganger epoksyinnholdet. twice the epoxy content.
Innholdet av faste stoffer i prparater for emaljelakk-belegget ifolge den foreliggende oppfinnelse ligger mellom 60 og 95 vektprosent av epoksyharpiksen og fortrinnsvis fra 70 til 90 vektprosent av epoksyharpiksen og ca. 5-40 vektprosent av aminoplastharpiksen, fortrinnsvis ca. 10 - 30 vektprosent av aminoplastharpiksen og mellom ca. 0,01 og 5 vektprosent av den karboksylmodifiserte polypropylenharpiks og fortrinnsvis ca. 1,0 - 3 vektprosent av den karboksylmodifiserte polypropylenharpiks. The content of solids in preparations for the enamel lacquer coating according to the present invention is between 60 and 95 percent by weight of the epoxy resin and preferably from 70 to 90 percent by weight of the epoxy resin and approx. 5-40% by weight of the aminoplast resin, preferably approx. 10 - 30 percent by weight of the aminoplast resin and between approx. 0.01 and 5% by weight of the carboxyl-modified polypropylene resin and preferably approx. 1.0 - 3% by weight of the carboxyl-modified polypropylene resin.
Ved fremstillingen av emaljelakkeringspreparatene ifolge den foreliggende oppfinnelse opplbses epoksyharpiksen og aminoplastharpiksen i en opplbsningsblanding såsom en bland ing av ketoner og aromatiske hydrokarboner inntil disse kompo-nenter er fullstendig opplost. In the production of the enamel coating preparations according to the present invention, the epoxy resin and the aminoplast resin are dissolved in a dissolving mixture such as a mixture of ketones and aromatic hydrocarbons until these components are completely dissolved.
Passende ketoner som kan anvendes for å fremstille emaljelakkeringspreparater basert på epoksyharpiks-aminoplastharpikser omfatter metyletylketon, metyl-isobutyl-keton, iso-foron, cykloheksanon, diaceton-alkohol og diisobutylketon. Aromatiske hydrokarboner som kan anvendes som opplbsningsmidler for emaljelakkeringspreparater basert på epoksyharpiks-aminoplastharpiks omfatter benzen, toluen, xylen og kommersielt tilgjengelige aromatiske naftablandinger såsom "Solvesso 100" eller "150". Et eksempel på en nyttig eteralkohol er butyl-cellosolveog eib eksempel på en nyttig eteralkoholester er cellosolveacetat. Suitable ketones which can be used to prepare enamel lacquer compositions based on epoxy resin aminoplast resins include methyl ethyl ketone, methyl isobutyl ketone, isophorone, cyclohexanone, diacetone alcohol and diisobutyl ketone. Aromatic hydrocarbons which can be used as solvents for enamel lacquer compositions based on epoxy resin-aminoplast resin include benzene, toluene, xylene and commercially available aromatic naphtha mixtures such as "Solvesso 100" or "150". An example of a useful ether alcohol is butyl cellosolve and an example of a useful ether alcohol ester is cellosolve acetate.
Antioksyderende midler og midler for termisk stabi-lisering kan også tilfore emaljelakk-preparatet for å for-hindre oksydas jon av den karboksylmodifiserte polypropylenharpiks under oppvarming og herding av emaljelakk-belegget etter at det er påfbrt metalloverflåtene. Antioksyderende midler som har vist seg nyttige i den foreliggende oppfinnelse omfatter hindrede fenolforbindelser såspm "Irganox 1010", tetrakis-/metylen-3- (31,5' -di-tert. -butyl-4-hydr oksyf enyl) J>ropionat7 Antioxidants and agents for thermal stabilization can also be added to the enamel lacquer preparation to prevent oxidation of the carboxyl-modified polypropylene resin during heating and curing of the enamel lacquer coating after it has been applied to the metal surfaces. Antioxidants which have proved useful in the present invention include hindered phenolic compounds such as "Irganox 1010", tetrakis-/methylene-3-(31,5'-di-tert.-butyl-4-hydroxyphenyl) J>ropionate7
som tilfores emaljelakkeringspreparatet i konsentrasjoner i området fra 0,1 - 1,0 vektprosent basert på innholdet av faste stoffer i emaljelakken. Smbremidler såsom polyetylendispersjon-er kan også tilfores emaljelakken, noe som kreves under ddanning av den emaljelakk-belagte metallplate ved fremstilling av beholdere. which is added to the enamel lacquer preparation in concentrations in the range from 0.1 - 1.0 percent by weight based on the content of solids in the enamel lacquer. Lubricants such as polyethylene dispersions can also be added to the enamel lacquer, which is required during the formation of the enamel lacquer-coated metal plate in the manufacture of containers.
For å forbedre varmeforseglingsevnen i det brente emaljelakk-preparat opploses fortrinnsvis den karboksylmodifiserte polypropylenharpiks forst i varmt, f.eks. hbyere enn 100°C, organisk opplbsningsmiddel valgt fra alifatiske alkoholer, syrer og hydrokarboner som inneholder minst 10 karbonatomer. In order to improve the heat-sealing ability of the fired enamel lacquer preparation, the carboxyl-modified polypropylene resin is preferably first dissolved in hot, e.g. higher than 100°C, organic solvent selected from aliphatic alcohols, acids and hydrocarbons containing at least 10 carbon atoms.
Som man vil se i det etterfølgende, vil valg av et annet opplbsningsmiddel enn en alifatisk forbindelse som inneholder minst 10 karbonatomer som opplbsningsmiddel for karboksylmodifisert polypropylenharpiks fore til at tilfbrselen av modifisert polypropylenharpiks i emaljelakkeringspreparatet opplost i slike opplbsningsmidler ikke vesentlig forbedrer varmeforseglingen mellom en propylenpolymer og det brente emaljelakk-belegg. As will be seen below, choosing a solvent other than an aliphatic compound containing at least 10 carbon atoms as a solvent for carboxyl-modified polypropylene resin will mean that the addition of modified polypropylene resin in the enamel coating composition dissolved in such solvents does not significantly improve the heat seal between a propylene polymer and the burnt enamel coating.
Ved fremstillingen av oppløsninger av karboksylmodifisert polypropylenharpiks for tilfbrsel til emaljelakkeringspreparater ifolge den foretrukne fremgangsmåte, tilfores harpiksen til den organiske alkohol, syre eller hydrokarbon i en konsentrasjon på fra 1 - ca. 30 vektprosent og fortrinnsvis fra ca. 2 til ca. 10 vektprosent. Etter at harpiksen er tilsatt til opplosningsmidlet oppvarmes blandingen ved temperaturer på over 100°C inntil harpiksen er fullstendig opplost i opplosningsmidlet. Harpiksopplosningen tilsettes deretter til emaljelakkeringspreparatet,fortrinnsvis som er en organisk oppløsning av en epoksyharpiks og et fornetningsmateriale såsom en varme-aktiverbar aminopHastharpiks. Det er foretrukket at harpiksopplosningen har en temperatur på over 100°C når den tilsettes til emaljelakkeringspreparatet. Som man vil se i det etterfølgende, vil man få geldannelse og styrken på varmeforseglingen mellom propylen-polymeren og den emaljelakk-belagte metalloverflate reduseres vesentlig hvis temperaturen i harpiksen er 100°C eller mindre. In the preparation of solutions of carboxyl-modified polypropylene resin for use in enamel lacquer preparations according to the preferred method, the resin is added to the organic alcohol, acid or hydrocarbon in a concentration of from 1 - approx. 30 percent by weight and preferably from approx. 2 to approx. 10 percent by weight. After the resin has been added to the solvent, the mixture is heated at temperatures above 100°C until the resin is completely dissolved in the solvent. The resin solution is then added to the enamel coating composition, preferably an organic solution of an epoxy resin and a cross-linking material such as a heat-activatable aminopHast resin. It is preferred that the resin solution has a temperature of over 100°C when it is added to the enamel coating preparation. As will be seen below, gelation will occur and the strength of the heat seal between the propylene polymer and the enamel lacquered metal surface is significantly reduced if the temperature in the resin is 100°C or less.
Organiske alkoholer anvendt for å fremstille opp-løsninger av karboksylmodifisert polypropylenharpiks for tilfbrsel til emaljelakkeringspreparatene i overensstemmelse med foretrukne utførelser av den foreliggende oppfinnelse er lang-kjedede, mettede og umettede alifatiske monohydroksy-alkoholer med den generelle formel R-OH, hvor R er et. rett eller forgren-et, mettet eller olefinisk umettet hydrokarbongruppe med fra 10 - 30 karbonatomer og fortrinnsvis fra 12 - B2 karboretomer. Illustrende for slike alkoholer er decylalkohol, tridecylalkohol,laurylalkohol, tetradecylalkohol, cetylalkohol, oleylalkohol, linoleylalkohol, palmitoleylalkohol, arachidylalkohol, stearylalkohol, benhenylalkohol, arachidonylalkohol,,myristoleyl-alkohol og blandingerav disse alkoholer. Organic alcohols used to prepare solutions of carboxyl-modified polypropylene resin for use in the enamel coating preparations in accordance with preferred embodiments of the present invention are long-chain, saturated and unsaturated aliphatic monohydroxy alcohols of the general formula R-OH, where R is a. straight or branched, saturated or olefinically unsaturated hydrocarbon group with from 10 to 30 carbon atoms and preferably from 12 to B2 carbon atoms. Examples of such alcohols are decyl alcohol, tridecyl alcohol, lauryl alcohol, tetradecyl alcohol, cetyl alcohol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidyl alcohol, stearyl alcohol, benhenyl alcohol, arachidonyl alcohol, myristoleyl alcohol and mixtures of these alcohols.
Organiske syrer som kan anvendes Som kan anvendes Organic acids that can be used As can be used
som opplbsningsmidler for karboksylmodifisert polypropylenharpiks omfatter mettede og olefinisk umettede alifatiske syrer med 10 eller flere karbonatomer og fortrinnsvis fra 12 - 22 karbonatomer såsom fettsyrer som kaprinsyre, laurinsyre, myri- as solvents for carboxyl-modified polypropylene resin include saturated and olefinically unsaturated aliphatic acids with 10 or more carbon atoms and preferably from 12 - 22 carbon atoms such as fatty acids such as capric acid, lauric acid, myr
stinsyre, palmitinsyre, isostearinsyre, stearinsyre og archi-dinsyre, undecyleminsyre, myristoleinsyre, palmitoleinsyre, oljesyre, cetoleinsyre og eruicinsyre og blandinger av disse syrene. stenic acid, palmitic acid, isostearic acid, stearic acid and archidic acid, undecyleminic acid, myristoleic acid, palmitoleic acid, oleic acid, cetoleic acid and eruiic acid and mixtures of these acids.
Alifatiske hydrokarboner med 10 eller flere karbonatomer som kan anvendes som opplbsningsmiddel ifolge den foreliggende oppfinnelse omfatter mettede hydrokarboner såsom decan, iodécan, pentadecan, neftadecan, nonadecan og blandinger av disse hydrokarboner såsom kerosen og mineralolje og også umettede hydrokarboner og spesielt umettede hydrokarboner med olefin umetning såsom undecen, tridecen og pentadecen. Aliphatic hydrocarbons with 10 or more carbon atoms which can be used as a solvent according to the present invention include saturated hydrocarbons such as decane, iodecane, pentadecane, neftadecane, nonadecane and mixtures of these hydrocarbons such as kerosene and mineral oil and also unsaturated hydrocarbons and especially unsaturated hydrocarbons with olefinic unsaturation such as undecene, tridecene and pentadecene.
Emaljelakkpreparatene ifolge den foreliggende oppfinnelse kan på en tilfredsstillende måte tilfores med et innhold av faste stoffer på fra 20 - ca. 7- 0 vektprosent beregnet på grunnlag av den totale vekt av det flytende emaljelakkeringspreparat. Vanligvis er innholdet av faste stoffer fra 30 - The enamel lacquer preparations according to the present invention can be satisfactorily supplied with a solids content of from 20 - approx. 7-0 weight percent calculated on the basis of the total weight of the liquid enamel coating preparation. Usually the solids content is from 30 -
50 vektprosent. 50 percent by weight.
Emaljelakk-belegget som inneholder den tilknytningsfremmende karboksylmodifiserte polypropylenharpiks kan tilfredsstillende påfbres ved de vanlige fremgangsmåter som anvendes i beleggingsindustrien. For belegging av metallplater som anvendes for å fremstille beholdere er imidlertid gravyren eller direkte valsebelegging foretrukne fremgangsmåter idet den bnskedaebelegningsvekt lett og enkelt kan tilfores som et enkelt belegg. Sprbyting, dypping og flytebelegging er også nyttige fremgangsmåter for å påfbre beleggingsdispersjonen. The enamel lacquer coating containing the attachment-promoting carboxyl-modified polypropylene resin can be satisfactorily applied by the usual methods used in the coating industry. For the coating of metal sheets used to produce containers, however, engraving or direct roller coating are the preferred methods, as the base coating weight can easily and simply be applied as a single coating. Spraying, dipping and float coating are also useful methods for preparing the coating dispersion.
Etter at emaljelakk-belegget er påfbrt herdes det og hardnes det ved oppvarming av belegget ved en temperatur på After the enamel lacquer coating is applied, it hardens and hardens by heating the coating at a temperature of
fra ca. 177 - 3l6°C i pn periode på fra ca. 20 minutter til ca. 1 minutt og de foretrukne betingelser fra fra 8-10 minutter ved 204°C. from approx. 177 - 3l6°C for a period of from approx. 20 minutes to approx. 1 minute and the preferred conditions from 8-10 minutes at 204°C.
Den foretrukne beleggingvekt for å belegge metall-stykker hvortil en propylenpolymer lukkeinnretning kan varmeforsegles ligger i området fra 0,4 - 1,6 mg tort belegg pr. cm substratoverflate for å tilveiebringe en emaljert overffebe hvortil et propylenpolymerlag kan varmeforsegles. The preferred coating weight for coating metal pieces to which a propylene polymer closure device can be heat-sealed is in the range from 0.4 - 1.6 mg tort coating per cm substrate surface to provide an enamelled surface to which a propylene polymer layer can be heat sealed.
Propylenpolymerlag som kan tilknyttes den emaljelakk-belagte overflate i overensstemmelse med den foreliggende oppfinnelse omfatter polypropylen og propylen/etylen kopolymere som inneholder fra 1 - 10% etylen. Propylene polymer layers that can be attached to the enamel coated surface in accordance with the present invention include polypropylene and propylene/ethylene copolymers containing from 1 - 10% ethylene.
Propylenpolymerlaget tilknyttes til overflaten som er belagt med karboksylmodifisert polypropylen ved varmeforsegling ved en temperatur i området fra ca. 177 - 232°C og fortrinnsvis en temperatur på fra 190 - 204°C. Varmeforseglingen kan ut-fores på i og for seg kjent måte såsom ved pressing mellom varme plater eller metallkjever som oppvarmes med elåctrisk mot-stand eller ved induksjonoppvarming under anvendelse av opp-holdstider som varierer fra 0,1-5 sekunder. The propylene polymer layer is attached to the surface which is coated with carboxyl-modified polypropylene by heat sealing at a temperature in the range from approx. 177 - 232°C and preferably a temperature of from 190 - 204°C. The heat sealing can be carried out in a manner known per se, such as by pressing between hot plates or metal jaws which are heated with electrical resistance or by induction heating using residence times that vary from 0.1-5 seconds.
Etter at propylenpolymerlaget er varmeforseglet og knyttet til en emaljelakk-belagte overflate får delene av-kjoles til værelsestemperatur. After the propylene polymer layer is heat-sealed and attached to an enamel lacquer-coated surface, the parts are allowed to undress to room temperature.
Fig. 1 viser toppen 10 av en beholder. Toppen 10 er fremstilt av metall såsom hvitblikk, stål eller aluminium.<*>Toppen 10 består av et sentralt panel 11 som har en omboyd kant langs periferien hvortil der er festet en perifer flens 12. Den perifere flens 12 er rullet og dobbeltskjotet med en ytre flens på den ovre del av beholderen på vanlig måte. ;Panelet 11 som er vist i tegningen har flere helle-åpninger 13, hvorigjennom innholdet i beholderen kan helles. ;Det er underforstått av åpningene 13 kan ha en hvilken som helst form at de ikke er begrenset til de helleåpning-er som er vist i figurene. ;Den ovre overflate av toppen 10 er belagt med et lag av termoherdende emaljelakk-belegg såsom en epoksyttrea/formaldehydharpiks 14 hvor er tilfort en tilknytningsfremmende karboksylmodifisert polypropylenharpiks såsom polypropylen/malein-syreanhydrnid-podet kopolymer. Varmef orseglet til emaljelakk-laget 14 på en slik måte at det kan trekkes av er en laminert lukkeinnretning 15 fremstilt av et ytre lag aluminiumfolie 16 og et indre lag av polypropylen 17. Lukkeinnretnin^n 15 har en forseglingslapp 18 for å lukke åpningene 13. Festet til forseglingslappen 18 er en trekkering 19. ;Varmeforseglingen som danner en tilknytning som kan losne og som er dannet på grunn av nærvær av karboksylmodifisert popypropylenharpiks i emaljelakk-laget 15 gjor det mulig at klaffen 18 kan varmeforsegles til metallpanelet og deretter skilles fra metallet ved å påfbre en trekkraft i ringen 19. Ringen 19 er fortrinnsvis dannet med en åpning som passer for brukerens finger. Varmen for å tilveiebringe tilknytningen tilfores fortrinnsvis ved induksjonsoppvarming av metalloverflaten. På denne måten vil forseglingklaffen 19 ;være fast varmeforseglet, men lbsbar rundt åpningene 13 og være knyttet til metallet inntil den trekkes bort og skilles fra endeflaten i beholderen. ;I tillegg til å fremme tilknytningen mellom lukkeinnretninger belagt med propylenpolymer og [ emaljelakk-belagte bokseender, har fremgangsmåten ifolge den foreliggende oppfinnelse andre anvendelser ved fremstilling av beholdere og for tilknytning til metaller generelt. ;Et annet eksempel på anvendelse av fremgangsmåten ifolge foreliggende oppfinnelse ved fremstilling av beholdere er fremstilling av selve beholderlegemet. I en fremgangsmåte for å fremstille selve beholderlegemet, formes en plate av emaljelakk-belagt metall til en rbrform hvoretter endene av emnet bringes sammen med en viss overlapping. En forseglet som lages ved å plassere et bindemiddel mellom de overlappende deler og å varme opp sbmmen og presse de overlappende deler sammen for å få den bnskede tilknytning mellom metalldelene. Propylenpoly-meiie er ikke blitt anvendt som tilknytningsmaterialer på ;grunn av deres dårlige evne til å knytte seg til emaljelakkerte metalloverflater. Ved å modifisere emaljelakk-belegget som tilfores emnet med en karboksylmodifisert polypropylenharpiks i overensstemmet med den foreliggende oppfinnelse, vil tilknytningen av propylenpolymeren til den emaljelakkerte metalloverflate forbedres i den grad at propylenpolymer kan anvendes som tilknytningsmiddel for de overlappende deler av beholderlegemet. ;Fig. 3 viser en beholder 20 som har et legeme 21 og en ende 22 og en langsgående sidesbm 23. Fig. 4 viser sidesbmmen 23 i detalj og den består av metallag 25 og 26 hvortil er påfbrt et emal jelakk-beHqgg 27 hvor emal jelakk-belegget er blitt tilfort en tilknytningsfremmende mengde karboksylmodifisert polypropylenharpiks. Sbmmen 23 har en laminatstruktur som består av overlappende kanter av emaljelakk-belagte metall overflater 25 og 26 med et lag propylenpolymer 28 mellom disse og som knytter de overlappende kanter sammen. ;For å illustrere den foreliggende oppfinnelse er de folgende eksempler gitt. Det er imidlertid underforstått at eksemplene bare har illustrerende hensikt og at oppfinnelsen ikke begrenses av doen av de spesifikke materialer eller betingelser som er nevnt i eksemplene. ;Eksempel 1 ;Et emaljelakkbelegg med epoksyharpiks ble fremstilt sammensatt av 40% faste stoffer som består av 80 deler diglyci-dyleter og "BisphenolA" og 20 deler av en butylert ureaformaldehyd suspendert i et organisk opplbsningsmiddel som bestod av omtrent like deler xylen, metylisobutylketondiacetonalkohol og butylalkohol. ;Til emaljelakkering^xeparatet ble tilsatt "Hercoprime A-35" i form av en 10% dispersjon i kerosen. "Hercoprime A-35" er en maleinsyreanhydrid-modifisert polypropylenharpiks med en indre viskositet på ca. 1,7, et karboksylinnhold på ;0,5 - 1,0%, en partikkelstbrrelse i området fra 35 - U- 0 mikron og en spesifikk vekt på 0,9. Det endelige innhold av faste stoffer i det modifiserte emaljelakkeringspreparåt bestod av 98,5 vektprosent av de faste stoffer i emaljelakkeringsbelegget epéksjharpiks/ureaformaldehyd og 1,5 vektprosent "Hercoprime A-35".. Ved tilsatsen av "Hercoprime"-dispersjonen til emaljelakkeringspreparatet ble "Hercoprime"-dispersjonen langsomt tilsatt til preparatet ved værelsestemperatur (25°C) og under heftig omrbring. Omrbring av det modifiserte emaljelakkeringspreparat ble fortsatt i ytterligere 5 minutter eller inntil en homogen blanding var tilføeiebragt. ;Det "Hercoprime"-modifiserte emaljelakkeringspreparat ble tilfort ved hjelp av en laboratoriestav til overflaten av ;-en plate av tinnfritt stål med en bieggingsvekt på 0,4 mg/cm . Etter at emaljelakkeringspreparatet var tilfort, ble den fuk-tige platen brent ved 205°C i 8 minutter i en varmluftsovn for å fordampe opplosningsmidlet og herde emaljelakken til en hard film. Strimler på 10 x 2,5 cm ble skåret ut fra den belagte platen for å prove -tilknytningsegenskapene for emalje- ;lakken. En tilsvarende formet strimmel av polypropylen/alumi-niumsfolielaminat fremstilt av 0,01 :©m aluminiumsfolie hvortil er tilknyttet 0,005 cm polypropylenharpiks med en smelteindeks på 0,5 og en tetthet på 0,905 hie varmeforseglet til den emaljelakk-belagte stålstrimmel med polypropylenlaget direkte^ ;i kontakt med emaljelakkoverflaten under anvendelse av en "Sentinel" varmeforsegler for laboratoriebruk. Tilknytningen ble tilveiebragt med forsegleren satt på 205 C, 2,8 kg/cm presstrykk og en oppholdstid på 4 sekunder. Den varmeforseglede struktur fikk deretter anledning til å avkjble til værelsestemperatur. ;Den varmeforseglede struktur ble utprbvd for å be-stemme skillestyrken som var nbdvendig for å skille den polypropylenbelagte aluminiumsfolie fra den emaljelakkbelagte strimmel. Prbven biké utfort under anvendelse av en "Amthor" skille-prover som anvendte en konstant belastning på 30 cm pr. minutt i strukturen. Skillestyrken som var nbdvendig for å skille de varmeforseglede lag ble bestemt til 0,24 kg/cm<2>. ;For sammenligningens skyld ble fremgangsmåten fra eksempel 1 gjentatt med unntak av at karboksylmodifisert polypropylenharpiks ikke ble tilfort emaljelakk-belegget og ingen målbar tilknytning ble tilveiebragt i den varmeforseglede struktur. ;Eksempel 2 ;En plate av tinnfritt stål ble belagt med et emaljelakk-belegg av epoksyharpiks modifisert med "Hercoprime" i overensstemmelse med fremgangsmåten i eksempel 1. Strimler av det emaljelakk-belagte stål ble knyttet sammen ved å fore en film av polypropylen mellom de emaljelakkerte overflater og å varmeforsegle det hele under betingelser som i eksempel 1. Skillestyrken som var nbdvendig for å skille de varmeforseglede strimler ble bestemt til 4,6 kg/cm . ;Eksempel 5 ;Varme opplbsninger av en karboksylmodifisert polypropylenharpiks ble fremstilt ved å tilsette 0,4 deler "Hercoprime A-35" til forskjellige mengder oleylalkohol for å fremstille harpiksopplbsninger hvor konsentrasjonene varierte fra 4 20 vektprosent. "Hercoprime A-35" er en maleinshyreanhydrid- modifisert polypropylenharpiks med en indre viskositet på ca.<*>1,7, et karboksylinnhold på fra 0,6 - 1,0%, en partikkelstbrrelse i området 35 - 40 mikron og en spesifikk vekt på 0,9. Fig. 1 shows the top 10 of a container. The top 10 is made of metal such as tin, steel or aluminium.<*>The top 10 consists of a central panel 11 which has an omboyed edge along the periphery to which a peripheral flange 12 is attached. The peripheral flange 12 is rolled and double butted with a outer flange on the upper part of the container in the usual way. The panel 11 shown in the drawing has several pouring openings 13, through which the contents of the container can be poured. It is understood that the openings 13 can have any shape that they are not limited to the pouring openings shown in the figures. The upper surface of the top 10 is coated with a layer of thermosetting enamel coating such as an epoxy resin/formaldehyde resin 14 to which is added a bonding-promoting carboxyl-modified polypropylene resin such as polypropylene/maleic anhydride-grafted copolymer. Heat sealing the enamel lacquer layer 14 in such a way that it can be pulled off is a laminated closure device 15 made of an outer layer of aluminum foil 16 and an inner layer of polypropylene 17. The closure device 15 has a sealing tab 18 to close the openings 13. Attached to the sealing tab 18 is a pull ring 19. The heat seal which forms a releasable connection and which is formed due to the presence of carboxyl modified polypropylene resin in the enamel lacquer layer 15 makes it possible for the flap 18 to be heat sealed to the metal panel and then separated from the metal by to apply a traction force in the ring 19. The ring 19 is preferably formed with an opening suitable for the user's finger. The heat to provide the connection is preferably supplied by induction heating of the metal surface. In this way, the sealing flap 19 will be firmly heat-sealed, but flexible around the openings 13 and will be attached to the metal until it is pulled away and separated from the end face of the container. In addition to promoting the connection between closure devices coated with propylene polymer and [ enamel lacquer-coated box ends, the method according to the present invention has other applications in the manufacture of containers and for connection to metals in general. Another example of using the method according to the present invention in the manufacture of containers is the manufacture of the container body itself. In a method for producing the container body itself, a sheet of enamel-coated metal is formed into a tubular shape, after which the ends of the blank are brought together with a certain overlap. A seal made by placing a bonding agent between the overlapping parts and heating the beam and pressing the overlapping parts together to obtain the desired bond between the metal parts. Propylene polymeals have not been used as bonding materials because of their poor ability to bond to enamelled metal surfaces. By modifying the enamel lacquer coating that is applied to the workpiece with a carboxyl-modified polypropylene resin in accordance with the present invention, the connection of the propylene polymer to the enamel-coated metal surface will be improved to the extent that the propylene polymer can be used as a connection agent for the overlapping parts of the container body. Fig. 3 shows a container 20 which has a body 21 and an end 22 and a longitudinal side frame 23. Fig. 4 shows the side frame 23 in detail and it consists of metal layers 25 and 26 to which an enamel enamel coating 27 is applied, where the enamel enamel coating has been added an attachment-promoting amount of carboxyl-modified polypropylene resin. The frame 23 has a laminate structure which consists of overlapping edges of enamel lacquer-coated metal surfaces 25 and 26 with a layer of propylene polymer 28 between these and which binds the overlapping edges together. To illustrate the present invention, the following examples are given. It is understood, however, that the examples are for illustrative purposes only and that the invention is not limited by the specific materials or conditions mentioned in the examples. ;Example 1 ;An epoxy resin enamel lacquer coating was prepared composed of 40% solids consisting of 80 parts of diglycidyl ether and "BisphenolA" and 20 parts of a butylated urea formaldehyde suspended in an organic solvent consisting of approximately equal parts of xylene, methyl isobutyl ketone diacetone alcohol and butyl alcohol. "Hercoprime A-35" was added to the enamel coating preparation in the form of a 10% dispersion in kerosene. "Hercoprime A-35" is a maleic anhydride-modified polypropylene resin with an intrinsic viscosity of approx. 1.7, a carboxyl content of ;0.5 - 1.0%, a particle size in the range from 35 - U - 0 microns and a specific gravity of 0.9. The final content of solids in the modified enamel coating preparation consisted of 98.5% by weight of the solids in the enamel coating coating epoxy resin/ureaformaldehyde and 1.5% by weight "Hercoprime A-35". When the "Hercoprime" dispersion was added to the enamel coating preparation, " The Hercoprime" dispersion was slowly added to the preparation at room temperature (25°C) and under vigorous stirring. Stirring of the modified enamel coating preparation was continued for a further 5 minutes or until a homogeneous mixture was obtained. ;The "Hercoprime"-modified enamel lacquer preparation was applied by means of a laboratory rod to the surface of ;-a plate of tin-free steel with a biasing weight of 0.4 mg/cm . After the enamel coating composition was added, the wet plate was fired at 205°C for 8 minutes in a hot air oven to evaporate the solvent and harden the enamel coating to a hard film. Strips of 10 x 2.5 cm were cut from the coated plate to test the bonding properties of the enamel lacquer. A similarly shaped strip of polypropylene/aluminium foil laminate made from 0.01:©m aluminum foil to which is attached 0.005 cm of polypropylene resin with a melt index of 0.5 and a density of 0.905 hie heat-sealed to the enamel-coated steel strip with the polypropylene layer directly^ ; in contact with the enamel lacquer surface using a "Sentinel" heat sealer for laboratory use. The bond was provided with the sealer set at 205°C, 2.8 kg/cm press pressure and a dwell time of 4 seconds. The heat-sealed structure was then allowed to cool to room temperature. The heat-sealed structure was tested to determine the separation strength required to separate the polypropylene-coated aluminum foil from the enamel-coated strip. The bike test was carried out using an "Amthor" separating sampler which applied a constant load of 30 cm per minute in the structure. The separation force required to separate the heat-sealed layers was determined to be 0.24 kg/cm<2>. For the sake of comparison, the procedure from Example 1 was repeated with the exception that carboxyl-modified polypropylene resin was not added to the enamel lacquer coating and no measurable bond was provided in the heat-sealed structure. ;Example 2 ;A sheet of tin-free steel was coated with an enamel lacquer coating of epoxy resin modified with "Hercoprime" in accordance with the procedure of Example 1. Strips of the enamel lacquer-coated steel were bonded together by lining a film of polypropylene between the enamelled surfaces and to heat-seal the whole under conditions as in Example 1. The separation force required to separate the heat-sealed strips was determined to be 4.6 kg/cm. ;Example 5 ;Hot solutions of a carboxyl-modified polypropylene resin were prepared by adding 0.4 part "Hercoprime A-35" to various amounts of oleyl alcohol to prepare resin solutions where the concentrations varied from 4 to 20 percent by weight. "Hercoprime A-35" is a maleic anhydride-modified polypropylene resin with an internal viscosity of approx. weight of 0.9.
Oleylalkohol-"Hercoprime"-blandingen ble oppvarmet til 155°C i 15 minutter og i lbpet av denne tiden ble "Hercoprime" opplost i oleylalkoholen. Den varme.opplbsning ved 155°C ble deretter langsomt tilsatt til en raskt omrbrt opplbsning av emaljelakk-belegg basert på epoksyharpiks sammensatt av 40 vektprosent faste stoffer som bestod av 85 deler digycidyleter av "Bisphenol A" og 15 deler butylert ureaformaldehyd suspendert i et organisk opplbsningsmiddel som bestod av ca. 25 deler xylen, 25 deler metylisobutylketon, 30 deler diacetonalkohol og 20 deler butylalkohol. Til emaljelakk-belegget ble også tilsatt 30 deler cellosolveacetat som et for-tynningsmiddel for å justere flyte- og viskositetsegenskapene i det modifiserte emaljelakkeringspreparat til det nivå som er nbdvendig for kommersiell belegging og 1,8 deler av en poly-etylendispersjon for smbrende formål. Det resulterende emaljelakkpreparat haddenen "Hercoprime"-konsentrasjon på 1% (beregnet på grunnlag av de faste stoffer i emaljelakken). The oleyl alcohol-"Hercoprime" mixture was heated to 155°C for 15 minutes, during which time the "Hercoprime" was dissolved in the oleyl alcohol. The hot solution at 155°C was then slowly added to a rapidly converted solution of enamel lacquer coating based on epoxy resin composed of 40 weight percent solids consisting of 85 parts digycidyl ether of "Bisphenol A" and 15 parts butylated urea formaldehyde suspended in an organic solvent which consisted of approx. 25 parts xylene, 25 parts methyl isobutyl ketone, 30 parts diacetone alcohol and 20 parts butyl alcohol. To the enamel lacquer coating was also added 30 parts of cellosolve acetate as a diluent to adjust the flow and viscosity properties of the modified enamel lacquer preparation to the level required for commercial coating and 1.8 parts of a polyethylene dispersion for spreading purposes. The resulting enamel varnish preparation haddenen "Hercoprime" concentration of 1% (calculated on the basis of the solids in the enamel varnish).
Det modifiserte emaljelakkeringspreparat ble ved . hjelp av en trekkestang tilfort overflaten av en plate på 43 kg tgrnnfritt stål med en tbrket filmvekt på fra 0,6 - 0,7 mg/ cm 2ståloverflate. The modified enamel coating preparation remained at . with the help of a drawbar, added to the surface of a plate of 43 kg stainless steel with a applied film weight of from 0.6 - 0.7 mg/ cm 2 steel surface.
Etter at det modifiserte emaljelakkbelegg var tilfort, ble den belagte plate brent ved 188°C i 8 minutter for å fordampe opplbsningsblandingen og for å herde blandingen av epoksy-ureaformaldehyd-karboksylmodifisert polypropylenharpiks til en hard emaljefilm. After the modified enamel coating was added, the coated plate was fired at 188°C for 8 minutes to evaporate the release mixture and to cure the epoxy-ureaformaldehyde-carboxyl-modified polypropylene resin mixture into a hard enamel film.
Etter avkjbling ble stålplaten kappet opp i strimler på 10 x 2,5 cm. En lukkeinnretning med en laminatstruktur av 0,0075 - 0,01 cm aluminiumsfolie belagt med et lag polypropylen-harplikksmed en tykkelse på fra 0/D4 - 0,005 cm og med en smelteindeks på 0,55 og en tetthet på 0,9 ble varmeforseglet til de emaljelakk-belagte strimler ved 204°C med polypropylenlaget i kontakt med den emaljelakk-belagte overflaten i 4 sekunder under et trykk på 2,8 kg/cm 2. Lukkeinnretningen som var varmeforseglet til strimmelen ble avkjblt til værelsestemperatur. After decoupling, the steel plate was cut into strips of 10 x 2.5 cm. A closure with a laminate structure of 0.0075 - 0.01 cm aluminum foil coated with a layer of polypropylene resin with a thickness of from 0/D4 - 0.005 cm and with a melt index of 0.55 and a density of 0.9 was heat sealed to the enamel coated strips at 204°C with the polypropylene layer in contact with the enamel coated surface for 4 seconds under a pressure of 2.8 kg/cm 2 . The closure device which was heat sealed to the strip was cooled to room temperature.
Den varmeforseglede del av lukkeinnretningen ble deretter provet for å bedbmme skillestyrken-som var nbdvendig for å skille lukkeinnretningen fra den emaljebelagte strimmel. Skillestyrkene som er nbdvendige for kommersielt bruk må være over 0,26 kg/lbpende cm. Prbven ble utfort under anvendelse av en "Amthor" skilleprbver som overforte en konstant belastning på 30 lbpende cm pr. minutt på lukkeinnretningen. De nbdvendige skillestyrker for å skille lukkeinnretningen er gitt i tabell 1 nedenfor. The heat-sealed portion of the closure was then tested to determine the separation strength required to separate the closure from the enameled strip. The separation strengths required for commercial use must be above 0.26 kg/running cm. The test was carried out using an "Amthor" separation test which carried a constant load of 30 lbf cm per minute on the closing device. The necessary separating forces to separate the closing device are given in table 1 below.
For sammenlignings skyld ble fremgangsmåten i eksempel 3 gjentatt med det unntak at den karboksylmodifiserte polypropylenharpiks ble tilfort emaljelakkpreparatet direktetuten forst å opplbse harpiksen i oleylalkohol. Skillestyrken som er nbdvendig for å skille lukkeinnretningen i denne prbven er også gitt i tabell 1 og er gitt betegnelsen "C". For the sake of comparison, the procedure in example 3 was repeated with the exception that the carboxyl-modified polypropylene resin was added to the enamel lacquer preparation directly before dissolving the resin in oleyl alcohol. The separation force which is required to separate the closure device in this test is also given in table 1 and is given the designation "C".
Resultatene i tabell 1 antyder at å opplbse den karboksylmodifiserte polypropylenharpiks i oleylalkohol vesentlig forbedrer tilknytningstyrken hos det varmeforseglede polypropylenlag i lukkeinnretningen til den emaljelakk-belagte ståloverflate og at desto mer fortynnet oppløsningen av harpiksen eller desto stbrre mengde alkohol som anvendes for å opplbse harpiksen, desto er forbedringen i tilknytningsstyrken. The results in Table 1 suggest that dissolving the carboxyl-modified polypropylene resin in oleyl alcohol significantly improves the bond strength of the heat-sealed polypropylene layer in the closure device to the enamel-coated steel surface and that the more dilute the solution of the resin or the greater the amount of alcohol used to dissolve the resin, the the improvement in attachment strength.
Eksempel % Example %
Fremgangsmåten i eksempel 3 ble gjentatt med det unntak at "Alfol 1218", en blanding av C12-C18alifatiske alkoholer ble anvendt for å opplbse "Hercoprime". "Alfol 1218" har fblgende sammensetning: The procedure of Example 3 was repeated with the exception that "Alfol 1218", a mixture of C12-C18 aliphatic alcohols was used to dissolve "Hercoprime". "Alfol 1218" has the following composition:
"Alfol 1218" opplosningsmidler som inneholdt "Hercoprime A-35" hie fremstilt ved å tilsette 0,34 deler "Hercoprime" til forskjellige mengder av "Alfol 1218" for å fremstille harpiksopplbsninger som inneholdt forskjellige forhold mellom "Hercoprime" og "Alfol 1218". Under oppløsningen av "Hercoprime", ble "Alfol 1218<»>oppvarmet til 100 - 120°C og "Hercoprim"-harpikspulver ble tilsatt. Oppvarmingen ble fortsatt til 150 - 160°C og den Karine opplbsning ble tilsatt til 100 deler av en epoksy-ureaformaldehyd-harpiksblanding under rask omrbring (40% faste stoffer i den dannede opplbsning) ved værelsestemperatur. Til emaljelakkeringspreparatet ble tilsatt 0,1 del "Irganox 1010" som en 10% opplbsning i cellosolveacetat såvel som ytterligere (20 deler) cellosolveacetat fortynnings-middel. Den resulterende emaljelakkeringspreparat inneholdt 0,8 vektprosent (beregnet på grunnlag av faste stoffer i emaljelakkbelegget) "Hercoprime". Skillestyrken for polypropylenbelagte aluminiums lukkeinnretninger varmeforseglet til strimler på 10 x 2,5 cm av emaljelakk-belagt tinnfritt stål er gjen- "Alfol 1218" solvents containing "Hercoprime A-35" were prepared by adding 0.34 parts of "Hercoprime" to different amounts of "Alfol 1218" to prepare resin solutions containing different ratios of "Hercoprime" to "Alfol 1218" . During the dissolution of "Hercoprime", "Alfol 1218<»> was heated to 100 - 120°C and "Hercoprim" resin powder was added. The heating was continued to 150 - 160°C and the Karine solution was added to 100 parts of a epoxy-ureaformaldehyde-resin mixture under rapid stirring (40% solids in the solution formed) at room temperature. To the enamel coating preparation was added 0.1 part "Irganox 1010" as a 10% solution in cellosolve acetate as well as additional (20 parts) cellosolve acetate diluent agent. The resulting enamel coating preparation contained 0.8 percent by weight (calculated on the solids basis of the enamel coating) "Hercoprime". The separation strength of polypropylene-coated aluminum fasteners heat-sealed to 10 x 2.5 cm strips of enamel-coated tin-free steel is re-
gitt i tabell 2 nedenfor. given in Table 2 below.
For sammenligningens skyld ble fremgangsmåten i eksempel 4 gjentatt med det unntak at den karboksylmodifiserte polypropylenharpiks ble tilfort emaljelakkbelegget direkte uten forst å være opplost i "Alfol 1218". '.Skillestyrken som er nbdvendig for å skille lukkeinnretningen i denne sammenlignende prove er også gjengitt i tabell 2, betegnet med symbolet For the sake of comparison, the procedure in example 4 was repeated with the exception that the carboxyl-modified polypropylene resin was added to the enamel lacquer coating directly without first being dissolved in "Alfol 1218". '.The separation force required to separate the closure device in this comparative sample is also reproduced in table 2, denoted by the symbol
Data i tabell II antyder at å opplbse den karboksylmodifiserte polypropylenharpiks i en blanding av C]_2~<"'18~ alkoholer vesentlig forbedrer tilknytningstyrken i det varmeforseglede polypropylenlag i lukkeinnretningen til den emalj§-belagte ståloverflate og at den sterkeste skillestyrke tilveiebringes når en opplbsning som inneholder ca. 2,7 vektprosent av harpiksen anvendes og at tilknytningsiyrken reduseres når mer fortynnede oppløsninger anvendes. Data in Table II suggest that dissolving the carboxyl-modified polypropylene resin in a mixture of C]_2~<"'18~ alcohols significantly improves the bond strength of the heat-sealed polypropylene layer in the closure device to the enamel coated steel surface and that the strongest separation strength is provided when a solution which contains approx. 2.7% by weight of the resin is used and that the binding effect is reduced when more dilute solutions are used.
Eksempel 5 Example 5
Fremgangsmåten fra eksempel 3 ble anvendt med forskjellige C]_2~C22 or6anislce alkoholer og syrer og C1Q og storre hydrokarboner med kokepunkter over 150°C som opplbsningsmidler for "Hercoprime". Vektforholdet mellom opplbsningsmiddel og "Hercoprime" ble holdt konstant på 15:1. Under opplbsningen av "Hercoprime", ble opplbsningsmaterialet og "Hercoprime"-pulveret oppvarmet til 150 - 160°C. Den varme opplbsning ble tilsatt til epoksy-ureaformaldehyd-emaljelak- The procedure from Example 3 was used with various C]_2~C22 or6anislce alcohols and acids and C10 and larger hydrocarbons with boiling points above 150°C as solvents for "Hercoprime". The weight ratio between solvent and "Hercoprime" was kept constant at 15:1. During the dissolution of "Hercoprime", the dissolution material and the "Hercoprime" powder were heated to 150 - 160°C. The hot solution was added to epoxy-urea-formaldehyde enamel lacquer
ken under rask omrbring ved værelsestemperatur. Til emaljelakkeringspreparatet ble tilsatt en "Irganox 1010" som en 10 ken under rapid stirring at room temperature. An "Irganox 1010" was added to the enamel coating preparation as a 10
% opplbsning i cellosolveacetat såvel som ytterligere cellosolve-acetatfortynningsmiddel. Det resulterende emaljelakk-preparat inneholdt 1 vektprosent (beregnet på grunnlag av de faste stoffer i emaljelakk-preparatet) "Hercoprime" hadde fblgende sammensetning: % dissolution in cellosolve acetate as well as additional cellosolve acetate diluent. The resulting enamel lacquer preparation contained 1 percent by weight (calculated on the basis of the solids in the enamel lacquer preparation) "Hercoprime" had the following composition:
Skillestyrken av polypropylen-belagte aluminiums lukkeinnretninger varmeforseglet til 10 x 2,5 cm strimler av emaljelakk-belagt tinnfritt stål er gjengitt i tabell III nedenfor med emaljelakk-belegg tilfort "Hercoprim" under anvendelse av forskjellige opplosningsmidler innenfor rammen av den foreliggende oppfinnelse. The separation strength of polypropylene-coated aluminum closure devices heat-sealed to 10 x 2.5 cm strips of enamel lacquer-coated tin-free steel is reproduced in Table III below with enamel lacquer coating added "Hercoprim" using different solvents within the scope of the present invention.
For sammenligningens skyld ble fremgangsmåten i eksempel 5 gjentatt med unntak av at "Hercoprime"-harpiks ble tilfort emaljelakkpreparatene opplost i et opplbsningsmiddel som ligger utenfor rammen av den foreliggende oppfinnelse. Skillestyrkene som er nodvendige for å skille lukkeinnretningen varmeforseglet til disse sammenlignende emaljelakkbelegg er også gjengitt i tabell III. Disse sammenlignende prover er betegnet med "C". For the sake of comparison, the procedure in example 5 was repeated with the exception that "Hercoprime" resin was added to the enamel lacquer preparations dissolved in a solvent which is outside the scope of the present invention. The separation strengths required to separate the closure device heat-sealed to these comparative enamel coatings are also reproduced in Table III. These comparative samples are denoted by "C".
Data i tabell III viser at "Hercoprime" tilsatt til emaljelakkeringspreparatet opplos<t>i ^ i2~^ 20 alif^iske alkoholer og syrer og C-^q eller mer alifatiske hydrokarboner forer til emaljeiakkerte overflater hvortil polypropylen kan varmeforsegles. Selv om "Hercoprime" er opplbselig i varm xylen, tetralin og etylheksylalkohol, dannet ikke emaljelakk-beleggene fremstilt fra disse varme opplbsninger noen varmeforseglet tilknytning med polypropylenoverflater. Lavere alifatiske alkoholer såsom butanol og isopropanol og andre opplosningsmidler såsom butylcellosolve, diacetonealkohol og metylisobutylketon kunne ikke anvendes for å tilfore "Hercoprime" til emaljelakkpreparater idet "Hercoprime" ikke er opp- loselig i disse vanlige organiske opplosningsmidler ved deres kokepunkter. Data in Table III show that "Hercoprime" added to the enamel coating preparation dissolves in ^ i2~^ 20 aliphatic alcohols and acids and C-^q or more aliphatic hydrocarbons leading to enamel-coated surfaces to which polypropylene can be heat-sealed. Although "Hercoprime" is soluble in hot xylene, tetralin and ethylhexyl alcohol, the enamel lacquer coatings prepared from these hot solutions did not form a heat-sealed bond with polypropylene surfaces. Lower aliphatic alcohols such as butanol and isopropanol and other solvents such as butyl cellosolve, diacetone alcohol and methyl isobutyl ketone could not be used to add "Hercoprime" to enamel lacquer preparations as "Hercoprime" is not soluble in these common organic solvents at their boiling points.
Eksempel 6 Example 6
Fremgangsmåten fra eksempel 5 ble gjentatt med det unntak at den varmeforseglede struktur ble brent ved 204°C i 15 sekunder for å simulere de betingelser som oppstår under fremstilling av endestykkenéefor metallbeholdere. Resultatene av disse prover er gjengitt i tabell IV. The procedure from Example 5 was repeated with the exception that the heat-sealed structure was fired at 204°C for 15 seconds to simulate the conditions encountered during the manufacture of end pieces for metal containers. The results of these tests are reproduced in Table IV.
Resultatene i tabell IV viser at tilknytningsstyrken av et polypropylenlag varmeforseglet til et emaljelakkbelegg modifisert i overensstemmelse med fremgangsmåten i foreliggende oppfinnelse oker hvis strukturen får ytterligere oppvarming. The results in Table IV show that the bond strength of a polypropylene layer heat-sealed to an enamel lacquer coating modified in accordance with the method of the present invention increases if the structure is further heated.
Eksempel VII Example VII
Fremgangsmåten fra eksempel 5" ble gjentatt for modi-fisering av emaljelakkpreparatene med oleylalkoholopplosninger av "Hercoprime A-35" med det unntak at temperaturen på "Hercoprime"-opplbsningen ved tilsatsen til emaljelakkpreparatene ble variert fra 23 - 155°C Skillestyrken av polypropylenbelagte aluminiums lukkeinnretninger varmeforseglet til 10 x 2,5 cm strimler av tinnfritt stål belagt med emaljelakkpreparatene er gjengitt i tabell V. The procedure from example 5" was repeated for modifying the enamel lacquer preparations with oleyl alcohol solutions of "Hercoprime A-35" with the exception that the temperature of the "Hercoprime" solution when added to the enamel lacquer preparations was varied from 23 - 155°C The separation strength of polypropylene-coated aluminum closure devices heat-sealed to 10 x 2.5 cm strips of tin-free steel coated with the enamel lacquer preparations are reproduced in table V.
Resultatene i tabell V angir at utmerkede til-knytningsresultater tilveiebringes med emaljelakker modifisert med "Hercoprime"-opplbsninger oppvarmet til en temperatur over 100°C ved tilsatsen til emaljelakkpreparåtene. Hvis "Hercoprime"-opplbsningen avkjbles til temperaturer på 100°C eller mindre, ved tilsatsen til emaljelakkpreparatene, krystalliserer "Hercoprime" ut som en gel noe som vesentlig påvirker tilknytningen til emaljelakken. The results in Table V indicate that excellent bonding results are obtained with enamel lacquers modified with "Hercoprime" solutions heated to a temperature above 100°C upon addition to the enamel lacquer preparations. If the "Hercoprime" solution is cooled to temperatures of 100°C or less, when added to the enamel lacquer preparations, "Hercoprime" crystallizes out as a gel, which significantly affects the adhesion to the enamel lacquer.
Eksempel VIII Example VIII
Fremgangsmåten fra eksempel V ble gjentatt med det unntak at "Hercoprime G-35" ble anvendt istedenfor "Hercoprime A-35". "Hercoprime G-35" skiller seg fra "Hercoprime A-35" ved det at "Hercoprime G-35" har et karboksylinnhold The procedure from Example V was repeated with the exception that "Hercoprime G-35" was used instead of "Hercoprime A-35". "Hercoprime G-35" differs from "Hercoprime A-35" in that "Hercoprime G-35" has a carboxyl content
på fra 3,0 - 4% og en lavere indre viskositet. Under oppløs-ningen av "Hercoprime G-35" i oleylalkohol ble alkoholen oppvarmet til 120 - 130°C og "Hercoprimé'-pulveret ble tilsatt. Oppvarmingen ble fortsatt til 150 - 160°C og varm opplbsning ble tilsatt til den raskt omrbrte epoksy-urea-formaldehyd-emaljelakk ved værelsestemperatur. Til emaljelakkpreparatet ble tilsatt "Irganox 1010" og likeledes cellosolveacetatfor-tynningsmiddel. Det resulterende emaljelakkpreparat inneholdt fra 0,1-1 vektprosent (beregnet på grunnlag av de faste stoffer i emaljelakken) "Hercoprime G-35" og hadde fblgende sammen- of from 3.0 - 4% and a lower internal viscosity. During the dissolution of "Hercoprime G-35" in oleyl alcohol, the alcohol was heated to 120 - 130°C and the "Hercoprimé" powder was added. The heating was continued to 150 - 160°C and hot solution was added to the rapidly converted epoxy -urea-formaldehyde enamel lacquer at room temperature. To the enamel lacquer preparation was added "Irganox 1010" and likewise cellosolve acetate diluent. The resulting enamel lacquer preparation contained from 0.1-1 percent by weight (calculated on the basis of the solids in the enamel lacquer) "Hercoprime G-35 " and had the following together-
Skillestyrken for polypropylenbelagte aluminiums lukkeinnretninger varmeforseglet til 10 x 2,5 cm strimler av emaljelakk-belagt tinnfritt stål er gjengitt i tabell VI. The breaking strength for polypropylene-coated aluminum closures heat-sealed to 10 x 2.5 cm strips of enamel lacquer-coated tin-free steel is given in Table VI.
Claims (43)
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US05/616,530 US4034132A (en) | 1975-09-25 | 1975-09-25 | Propylene polymer adhered to enamel coated metal surface |
US05/616,513 US4012270A (en) | 1975-09-25 | 1975-09-25 | Method of improving the adhesion of propylene polymers to enamel coated metal surfaces |
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SE (1) | SE7610532L (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS582825B2 (en) * | 1977-11-17 | 1983-01-18 | 日本クラウンコルク株式会社 | Olefin resin-metal adhesive structure and its manufacturing method |
JPS58385B2 (en) * | 1977-11-29 | 1983-01-06 | 日本クラウンコルク株式会社 | Peelable adhesive structure and manufacturing method thereof |
FR2442261A1 (en) * | 1978-11-24 | 1980-06-20 | Raffinage Cie Francaise | TWO-LAYER COMPLEX, ESPECIALLY FOR CLOSING PLASTIC PACKAGING |
FR2470060A2 (en) * | 1978-11-24 | 1981-05-29 | Raffinage Cie Francaise | Composite closure for polypropylene containers - comprises pref. aluminium foil coated with grafted polyolefin(s) mixt. |
ZA807387B (en) * | 1979-12-08 | 1981-11-25 | Metal Box Co Ltd | Containers |
DE3101084A1 (en) * | 1980-01-16 | 1982-01-07 | The Continental Group, Inc., 10017 New York, N.Y. | "METHOD FOR APPLYING A PROPYLENE POLYMER TO A LACQUERED METAL SURFACE AND LACQUER COMPOSITION FOR CARRYING OUT THE METHOD" |
ATE105579T1 (en) * | 1984-12-13 | 1994-05-15 | Morton Int Inc | PRIMER COMPOSITION AND METHOD OF PRODUCTION. |
TR24070A (en) * | 1987-10-15 | 1991-02-28 | Bekaert Sa Nv | REINFORCED SERIES FOR RUBBER TIRES. |
NL9002406A (en) * | 1990-06-27 | 1992-01-16 | Ferro Tech | METHOD FOR CONNECTING ENAMELLED OBJECTS AND THE OBTAINED COMPOSITION |
CN116855943B (en) * | 2023-08-24 | 2024-08-09 | 宁波硕强环保新材料有限公司 | Enamel coating with pearlescent metallic luster effect and preparation method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3467730A (en) * | 1964-12-14 | 1969-09-16 | Celanese Coatings Co | Thermoset carboxy copolymer-amino aldehyde-epoxide resin compositions |
BE755748A (en) * | 1969-09-08 | 1971-02-15 | Continental Can Co | PROCEDURE FOR BONDING A LAYER OF PROPENE POLYMER TO A METAL SURFACE |
US3666138A (en) * | 1970-06-15 | 1972-05-30 | Nat Can Corp | Container closure |
US3736284A (en) * | 1972-06-19 | 1973-05-29 | Continental Can Co | Metal coating compositions prepared from aqueous dispersions of a carboxyl containing olefin copolymer and a modified urea formaldehyde resin |
-
1976
- 1976-09-03 AU AU17433/76A patent/AU510800B2/en not_active Expired
- 1976-09-13 GB GB37898/76A patent/GB1565697A/en not_active Expired
- 1976-09-13 GB GB23121/78A patent/GB1565698A/en not_active Expired
- 1976-09-22 NO NO763253A patent/NO763253L/en unknown
- 1976-09-23 SE SE7610532A patent/SE7610532L/en not_active Application Discontinuation
- 1976-09-24 DK DK432476A patent/DK432476A/en not_active Application Discontinuation
- 1976-09-24 FR FR7628754A patent/FR2333646A1/en active Granted
- 1976-09-24 BR BR7606366A patent/BR7606366A/en unknown
- 1976-09-24 MX MX166419A patent/MX143441A/en unknown
- 1976-09-24 FI FI762739A patent/FI762739A/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU1743376A (en) | 1978-03-09 |
FR2333646A1 (en) | 1977-07-01 |
AU510800B2 (en) | 1980-07-17 |
SE7610532L (en) | 1977-03-26 |
GB1565697A (en) | 1980-04-23 |
MX143441A (en) | 1981-05-12 |
DK432476A (en) | 1977-03-26 |
BR7606366A (en) | 1977-06-07 |
FI762739A (en) | 1977-03-26 |
GB1565698A (en) | 1980-04-23 |
FR2333646B1 (en) | 1982-03-12 |
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