US20110218275A1 - Two-component solvent-free polyurethane adhesives - Google Patents
Two-component solvent-free polyurethane adhesives Download PDFInfo
- Publication number
- US20110218275A1 US20110218275A1 US12/717,610 US71761010A US2011218275A1 US 20110218275 A1 US20110218275 A1 US 20110218275A1 US 71761010 A US71761010 A US 71761010A US 2011218275 A1 US2011218275 A1 US 2011218275A1
- Authority
- US
- United States
- Prior art keywords
- component
- acid
- polyurethane adhesive
- free polyurethane
- weight percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012940 solvent-free polyurethane adhesive Substances 0.000 title claims description 24
- 229920005862 polyol Polymers 0.000 claims abstract description 65
- 150000003077 polyols Chemical class 0.000 claims abstract description 65
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 53
- 239000008158 vegetable oil Substances 0.000 claims abstract description 53
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 17
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 17
- 239000000944 linseed oil Substances 0.000 claims abstract description 10
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 10
- 239000004359 castor oil Substances 0.000 claims abstract description 8
- 235000019438 castor oil Nutrition 0.000 claims abstract description 8
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims description 52
- 239000000853 adhesive Substances 0.000 claims description 51
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000007822 coupling agent Substances 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- -1 quinnitol Chemical compound 0.000 claims description 14
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 13
- 239000012948 isocyanate Substances 0.000 claims description 13
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 150000002513 isocyanates Chemical class 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 7
- ARXKVVRQIIOZGF-UHFFFAOYSA-N 1,2,4-butanetriol Chemical compound OCCC(O)CO ARXKVVRQIIOZGF-UHFFFAOYSA-N 0.000 claims description 6
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 6
- 239000000473 propyl gallate Substances 0.000 claims description 6
- 235000010388 propyl gallate Nutrition 0.000 claims description 6
- 229940075579 propyl gallate Drugs 0.000 claims description 6
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 claims description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920005906 polyester polyol Polymers 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- 239000002383 tung oil Substances 0.000 claims description 4
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-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 3
- ZWVMLYRJXORSEP-UHFFFAOYSA-N 1,2,6-Hexanetriol Chemical compound OCCCCC(O)CO ZWVMLYRJXORSEP-UHFFFAOYSA-N 0.000 claims description 3
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 3
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 claims description 3
- YXGOYRIWPLGGKN-UHFFFAOYSA-N 2,3-ditert-butylbenzene-1,4-diol Chemical compound CC(C)(C)C1=C(O)C=CC(O)=C1C(C)(C)C YXGOYRIWPLGGKN-UHFFFAOYSA-N 0.000 claims description 3
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 3
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 3
- 229930195725 Mannitol Natural products 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 claims description 3
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 claims description 3
- 235000019282 butylated hydroxyanisole Nutrition 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 229930182470 glycoside Natural products 0.000 claims description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000594 mannitol Substances 0.000 claims description 3
- 235000010355 mannitol Nutrition 0.000 claims description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 229920001864 tannin Polymers 0.000 claims description 3
- 239000001648 tannin Substances 0.000 claims description 3
- 235000018553 tannin Nutrition 0.000 claims description 3
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 3
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims description 3
- NIDNOXCRFUCAKQ-UMRXKNAASA-N (1s,2r,3s,4r)-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1[C@H]2C=C[C@@H]1[C@H](C(=O)O)[C@@H]2C(O)=O NIDNOXCRFUCAKQ-UMRXKNAASA-N 0.000 claims description 2
- KMOUUZVZFBCRAM-UHFFFAOYSA-N 1,2,3,6-tetrahydrophthalic anhydride Chemical compound C1C=CCC2C(=O)OC(=O)C21 KMOUUZVZFBCRAM-UHFFFAOYSA-N 0.000 claims description 2
- RYRZSXJVEILFRR-UHFFFAOYSA-N 2,3-dimethylterephthalic acid Chemical compound CC1=C(C)C(C(O)=O)=CC=C1C(O)=O RYRZSXJVEILFRR-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 239000001530 fumaric acid Substances 0.000 claims description 2
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 claims description 2
- MUTGBJKUEZFXGO-UHFFFAOYSA-N hexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21 MUTGBJKUEZFXGO-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 claims description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N phthalic anhydride Chemical compound C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 2
- AUHHYELHRWCWEZ-UHFFFAOYSA-N tetrachlorophthalic anhydride Chemical compound ClC1=C(Cl)C(Cl)=C2C(=O)OC(=O)C2=C1Cl AUHHYELHRWCWEZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 abstract description 22
- 229920002635 polyurethane Polymers 0.000 abstract description 21
- 239000012939 laminating adhesive Substances 0.000 abstract description 6
- 238000009459 flexible packaging Methods 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 239000004848 polyfunctional curative Substances 0.000 abstract description 3
- 125000005442 diisocyanate group Chemical group 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 235000010469 Glycine max Nutrition 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- 150000004982 aromatic amines Chemical class 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920005903 polyol mixture Polymers 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 235000011054 acetic acid Nutrition 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 235000021313 oleic acid Nutrition 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 150000003626 triacylglycerols Chemical class 0.000 description 3
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- AGJCSCSSMFRMFQ-UHFFFAOYSA-N 1,4-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=C(C(C)(C)N=C=O)C=C1 AGJCSCSSMFRMFQ-UHFFFAOYSA-N 0.000 description 2
- MVEOHWRUBFWKJY-UHFFFAOYSA-N 7-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=CC(S(O)(=O)=O)=CC2=CC(O)=CC=C21 MVEOHWRUBFWKJY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229920006233 biaxially oriented polyamide Polymers 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000003348 petrochemical agent Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010773 plant oil Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- ATOUXIOKEJWULN-UHFFFAOYSA-N 1,6-diisocyanato-2,2,4-trimethylhexane Chemical compound O=C=NCCC(C)CC(C)(C)CN=C=O ATOUXIOKEJWULN-UHFFFAOYSA-N 0.000 description 1
- QGLRLXLDMZCFBP-UHFFFAOYSA-N 1,6-diisocyanato-2,4,4-trimethylhexane Chemical compound O=C=NCC(C)CC(C)(C)CCN=C=O QGLRLXLDMZCFBP-UHFFFAOYSA-N 0.000 description 1
- VZDIRINETBAVAV-UHFFFAOYSA-N 2,4-diisocyanato-1-methylcyclohexane Chemical compound CC1CCC(N=C=O)CC1N=C=O VZDIRINETBAVAV-UHFFFAOYSA-N 0.000 description 1
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000004823 Reactive adhesive Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000005025 cast polypropylene Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000002651 laminated plastic film Substances 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N linoleic acid group Chemical group C(CCCCCCC\C=C/C\C=C/CCCCC)(=O)O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 125000005481 linolenic acid group Chemical group 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 150000003142 primary aromatic amines Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011369 resultant mixture Substances 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000008207 working material Substances 0.000 description 1
Images
Classifications
-
- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8012—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with diols
- C08G18/8019—Masked aromatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8048—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
Definitions
- the present invention relates to two component laminating polyurethanes adhesives used in flexible packaging industry.
- the complex flexible packaging is prepared via the laminated films produced by so-called laminating adhesives (also called laminate adhesives).
- laminating adhesives also called laminate adhesives.
- the current main stream of such a laminate adhesive is a two-component (or two-part) type polyurethane (PU) adhesive, composed of a first component base resin having an isocyanate (NCO) group (“First Component”) and a second component curing agent (also called hardener) having one or more active hydrogen groups (“Second Component”).
- the two-part type polyurethane adhesive has excellent adhesivity, durability, and heat resistance properties. Further, it can be widely applied in the manufacture of film/film and film/metal foil laminates including multilayer laminates in food packaging industry and other industries.
- the first component contains an isocyanate-containing polyurethane prepolymer obtained by the reaction of excess diisocyanate with a polyether and/or polyester containing two or more active hydrogen groups per molecule.
- the second component usually is a polyether and/or polyester functionalized with two or more hydroxyl groups or the like per molecule.
- the two components are combined in a predetermined ratio and applied on one of the film or metal foil substrates, which is then laminated to a second substrate.
- Application may be from a solution in a suitable solvent using gravure or smooth roll coating cylinders or from a solvent-free state using special application machinery.
- Solvent-free or solventless laminating adhesives that can be applied at 100% solids and that do not contain either organic solvents or water, have a distinct advantage because they can be applied and operated at very high line speed. This is due to the fact that there is no organic solvent or water which must be removed from the adhesive. The application speed of solvent or waterbased laminating adhesives is limited because the solvent or water must be effectively dried in an oven, or otherwise removed, and such solvent/water removal process is generally time-consuming.
- NCO-terminated PU prepolymers In order to obtain NCO-terminated PU prepolymers, it is a common practice to react polyhydric alcohols with an excess of monomeric polyisocyanates—generally at least predominantly diisocyanates.
- Bio-based oil sources such as soy oil, castor oil, palm oil, linseed oil, or chemicals derived from them for instance oleochemical polyols, are suggested as substitutes for the polyols in the second components of the urethane reactants, for manufacturing foams, elastomers, plastics, adhesives and other products, as they provide the promise of a relatively stable and renewable raw material source.
- U.S. Pat. Nos. 6,624,244 and 6,465,569 disclose the combination of a multi functional polyol such as ethylene glycol and blown soy oil with an isocyanate to form urethane foam.
- U.S. Pat. No. 6,649,667 discloses the reaction of a mixture of polyester or polyether Polyol and a blown vegetable oil with an isocyanate in a reaction-injection-molded (RIM) process to produce closed cell polyurethane foam.
- RIM reaction-injection-molded
- U.S. Pat. No. 6,180,686 discloses polyurethane foam prepared by reaction of an isocyanate with a mixture of a blown vegetable oil and a polyether polyol. Because soybeans or the like are renewable, relatively inexpensive, versatile, and environmentally friendly, they are desirable as ingredients for foam manufacturers. Soybeans may be processed to yield fatty acid triglyceride rich soy oil and protein rich soy flour.
- DE 44 01 572 A1 describes a two-component polyurethane adhesive based on an isocyanate component and on a polyol component, which contain an oleochemical polyol such as castor oil from 2 to 7 percent by weight, based on the oleochemical polyol, of at least one di- and/or trifunctional alcohol, the hydroxyl value of the alcohols or the mixtures thereof being 1,100 to 1,850.
- This adhesive is suitable for non-load bearing wooden structural members.
- U.S. Pat. Publication No. 20040138402A1 discloses a two-component polyurethane adhesive for wooden materials comprising components A and B wherein A) a polyol mixture, containing at least a) 10 to 98 wt. % of at least one oleochemical polyol, b) 1 to 7.5 wt. % of at least one diol having a hydroxyl value of 400 to 2,000 and c) 1 to 7.5 wt. % of at least one tri-, tetra- or pentafunctional polyol having a hydroxyl value of 200 to 2,000, the wt.
- the adhesive is useful for bonding of load bearing wooden building components.
- U.S. Pat. Publication No. 20060276614A1 describes a bio-based multipurpose urethane adhesive in which the B side component is derived mainly from a vegetable oil, preferably soy oil.
- the vegetable oil derivative is a hydroxylated vegetable oil which is present in the B side component at a concentration from 65 to 98 weight percent.
- a phosphated soy oil can be present in an amount from 0.1 to 15 weight percent to enhance the adhesive properties, particularly for use on metals.
- water can be present in an amount from 0.1 to 10 weight percent with a slight amount of a surfactant to stabilize the mixture.
- Catalysts are included in the B side component to reduce the amount of the A side component and to accelerate curing of the adhesive.
- the A and B side components are admixed in amounts which provide from 40 to 90 weight percent of bio-based content in the adhesive.
- CN101280167A discloses a solvent-free polyurethane laminating adhesive that could be processed at room temperature, comprises two components, where the hardener comprises 1%-10% weight percent of polylol a) with carbon chain length less than 12 carbon, at least two functionality 30% to 70% of polylol b) 20% to 70% of polylol c) modified by plant oil, and 0.01% to 1% of curing speed adjusting agent.
- the base resin comprises polyurethane prepolymers obtained by the reaction of 25% to 50% of polylol modified by plant oil or other polyester polylol or polyether polylol and 50% to 75% of diisocyanate.
- low-volatility diisocyanates such as diphenylmethane diisocyanates (MDI)
- MDI diphenylmethane diisocyanates
- TDI high volatile diisocyanates
- the PU prepolymers based thereon have viscosities that are outside the range relevant to simple methods of application. Consequently, by adding an excess of diisocyanate monomers as reactive diluents, the viscosity of the polyurethane prepolymers could be reduced. Nevertheless, the incomplete reaction of the reactive diluents is capable of “migrating,” even into the bonded materials. By contact with moisture (H 2 O), the isocyanate groups of migrated material may react to form primary undesirable aromatic amines (R—N ⁇ C ⁇ O+H 2 O ⁇ R—NH 2 +CO 2 ).
- Migrated material and side reaction are undesirable in the food packaging industry, because the passage of the migrated material through the packaging material can lead to contamination of the packaged food product. To avoid contamination, the laminates must be “migrate-free”. Another unwanted side effect caused by the migration is the antisealing effect during the production of bags or carrier bags using laminated plastic film. Thus, substances and preparations containing, for example, more than 0.1% free TDI fall under hazardous material regulations and have to be identified accordingly. The obligation to do so involves special measures for the food packaging industry.
- reactive adhesives that are suitable for the production of composite materials should have a suitable application viscosity, but not contain or release any volatile or migratable substances into the environment or packaged material as such could cause hazardous effects to human beings.
- the current invention addresses these issues.
- Certain embodiments of the invention provide a two-component solvent-free polyurethane adhesive comprising: a First Component comprising: a first vegetable oil based Polyol A in an amount from 20 to 40 weight percent; a second vegetable oil based Polyol B in an amount from 0.5 to 5 weight percent, and a Polyisocyanate C in amount from 60 to 74 weight percent; and a Second Component comprising: a first vegetable oil based Polyol A in an amount from 87 to 99 weight percent, and a Polyol E in an amount from 0.5 to 5 weight percent.
- the first vegetable oil based Polyol A are selected from the group of castor oil based polylols and soybean oil based polylols.
- the amount of the first vegetable oil based Polyol A in the First Component is between 25 and 35 by weight percent. In alternative embodiments, the amount of the second vegetable oil based Polyol Bin the First Component is between 1 and 3 by weight percent.
- the second vegetable oil based Polyol B is linseed oil based polylol or tung oil based polylol.
- the amount of the first vegetable oil based Polyol A in the Second Component is between 92 and 97 by weight percent.
- the Polyisocyanate C is a polyfunctional isocyanate containing between 2 and 5 NCO groups. While in specific embodiments, the Polyisocyanate C comprises 4,4′-diphenylmethane diisocyanate (MDI).
- MDI 4,4′-diphenylmethane diisocyanate
- the two-component solvent-free polyurethane adhesive of claim 1 wherein the Polyol E is selected from low molecular polyhydric alcohols or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular polybasic carboxylic acids.
- the two-component solvent-free polyurethane adhesive of claim 9 wherein the Polyol E comprises low molecular diols or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular dibasic carboxylic acids.
- the two-component solvent-free polyurethane adhesive of claim 10 wherein the Polyol E comprises dipropylene glycol.
- the First Component further comprises Antioxidant D in an amount of less than about 0.5 weight percent.
- the Antioxidant D is selected from the group consisting of triphenyl phosphite, butylated hydroxyanisole (BHA), dibutyl hydroxy toluene (BHT), ditert-butylhydro quinone (TBHQ) and propyl gallate (PG).
- the Second Component further comprises Coupling Agent F in an amount of less than about 0.5 weight percent.
- the Coupling Agent F is selected from the group consisting of silane coupling agents, chromium complex coupling agents and titante coupling agents.
- the Second Component further comprises an Organic Acid Additive G in an amount of less than about 0.5 weight percent.
- the Organic Acid Additive G is selected from the group consisting of citric acid, acetic acid, acetic acid, oleic acid, and tannin.
- the First Component and the Second Component of the adhesive are present in proportions of 100 parts of the First Component to 60 to 85 parts of the Second Component. In specific embodiments, the proportion of the First Component and the Second Component is 100 parts to 75 parts.
- FIG. 1 illustrates the viscosity variation of the adhesive in Example 1 as a function of time.
- the vegetable oil based polylol also called hydroxylated vegetable oil, is derived from a vegetable oil.
- a first vegetable oil based polylol A comprises castor oil based polylol or soybean oil based polylol
- a second vegetable oil based polylol B comprises linseed oil based polylol or tung oil based polylol.
- the hydroxylated vegetable oil can be prepared by hydrolyzing an epoxidized vegetable oil.
- the crude vegetable oil is generally refined by settling to separate gums and other insoluble and impurities such as color bodies and phospholipids.
- the oil layer is removed and can be further treated with an alkali to remove free fatty acids which may be present.
- the refined vegetable oil can be epoxidized by reaction with peroxide such as hydrogen peroxide, and per-organic acids, such as peracetic acid, perbenzoic acid.
- the vegetable oils can also be epoxidized by reaction with oxygen and peroxide-containing reagents, which donates a single oxygen.
- Typical peroxide reagents include hydrogen peroxide, peroxycarboxylic acids (generated in situ or preformed), and alkyl hydroperoxides.
- the most preferred preparation is the oxidation of vegetable oil, preferably by blowing air through the vegetable oil for a sufficient time to oxidize the unsaturated groups of the triglyceride esters in the vegetable oil.
- the blown or epoxidized vegetable oil is hydrolyzed to open the epoxy rings and form adjacent hydroxyl groups, thus preparing a reactive polyol.
- the hydrolysis is preferably conducted by reacting the blown vegetable oil with water at a temperature from 170° C. to about 200° C. over a period of time from about 5 hours to about 10 hours.
- the first vegetable oil based polylol A is castor oil based polylol having a hydroxyl number from 50 to 190, depending on the degree of adhesion desired in the final adhesive composition.
- a hydroxylated derivative having a hydroxyl number in the high end of the range e.g., from 135 to 190 is used.
- hydroxylated soy oil having a hydroxyl number from 50 to about 135 can be used.
- the amount of the first vegetable oil based polylol A in the First Component is preferably from 25 to 35 by weight percent.
- the amount of the first vegetable oil based polylol A in the Second Component is preferably from 92 to 97 by weight percent.
- the second vegetable oil based polylol B is linseed oil based polylol for its availability and high content of triglycerides of unsaturated fatty acids such as linoleic, oleic and linolenic acids and lesser contents of triglycerides of saturated fatty acids such as palmitic and stearic acids. Having a high content of unsaturated bonds, linseed oil based polylol is particularly susceptible to reactions upon exposure to free aromatic amines. Only small content of linseed oil based polylol can considerably decrease the content of free aromatic amines in resulted product.
- the amount of the second vegetable oil based polylol B in the First Component is preferably from 1 to 3 by weight percent.
- the said polyisocyanate C is polyfunctional.
- Suitable polyfunctional isocyanates preferably contain on average 2 to at most 5, preferably up to 4 and in particular 2 or 3, NCO groups.
- suitable isocyanates include 2,4′/4,4′-tolylene diisocyanate (TDI), 2,4′/4,4′-diphenylmethane diisocyanate (MDI), phenyl isocyanate, 1,5-naphthylene diisocyanate, hydrogenated MDI (HI2MDI), xylylene diisocyanate (XDI), m- and p-tetramethyl xylylene diisocyanate (TMXDI), 4,4′-diphenyldimethylmethane diisocyanate, tetraalkyldiphenylmethane diisocyanate, 4,4′-dibenzyl diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate,
- the said Polyol E in the Second Component as a reactive dilution agent in the adhesive, comprises low molecular polyhydric alcohols (preferably diols) or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular polybasic (preferably dibasic) carboxylic acids.
- low molecular polyhydric alcohols preferably diols
- polyester polyols prepared by the reaction of the low molecular polyols with low molecular polybasic (preferably dibasic) carboxylic acids.
- Suitable polyhydric alcohols include ethylene glycol, 1,2- and 1,3-propanediol, dipropylene glycol, 1,4- and 2,3-butanediol, 1,6-hexanediol, 1,8-octanediol, neopentyl glycol, 1,3- and 1,4-bis(hydroxy-methyl)cyclohexane, 2-methyl-1,3-propanediol, glycerol, trimethylolpropane, 1,2,6-hexanetriol, 1,2,4-butanetriol, trimethylolethane, pentaerythritol, quinnitol, mannitol, sorbitol, methyl glycoside, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycols, dipropylene glycol, polypropylene glycols, dibutylene glycol, and poly-butylene glycols.
- the polycarboxylic acids may be aliphatic, cycloaliphatic, aromatic, or heterocyclic and may be substituted, e.g., by halogen atoms, and/or unsaturated.
- Suitable polycarboxylic acids include succinic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, trimellitic 55 acid, phthalic acid anhydride, tetrahydrophthalic acid anhydride, hexahydrophthalic acid anhydride, tetrachlorophthalic acid anhydride, endomethylene tetrahydrophthalic acid anhydride, glutaric acid anhydride, maleic acid, maleic acid anhydride, fumaric acid, dimeric and 60 trimeric fatty acids, dimethyl terephthalic, and terephthalic acid bis-glycol esters.
- the amount of polylol E in the Second Component is preferably from 1 to 2 by weight percent.
- the two-component polyurethane adhesive according to the certain embodiments of the invention may also contain auxiliary substances, which preferably are completely or partially admixed to the First Component and/or the Second Component.
- auxiliary substances which preferably are completely or partially admixed to the First Component and/or the Second Component.
- Substances except for fillers are usually added in small quantities in order to modify the properties of the essential components in the required direction, for example, to accommodate their workability, stability in storage and also properties in use to the particular field of application.
- Useful auxiliary substances may include: fillers, flow-control agents, deaerators, thixotropic agents, catalysts, antioxidants, dyes, drying agents, flame-proofing agents, solvents and wetting agents.
- the First Component further comprises antioxidant D in amounts of less than about 0.5 weight percent, wherein the antioxidant D comprises triphenyl phosphite, butylated hydroxyanisole (BHA), dibutyl hydroxy toluene (BHT), ditert-butylhydro quinone (TBHQ), propyl gallate (PG), or combinations thereof.
- the Second Component further comprises a coupling agent F in amounts of less than about 0.5 weight percent, wherein the coupling agent F comprises silane coupling agents, chromium complex coupling agent, titante coupling agent, or combinations thereof.
- the Second Component may also further comprises less than about 0.5 weight percent of organic acid additive G, such as citric acid, acetic acid, oleic acid, tannin, and combinations thereof.
- the First Component is prepared by mixing ingredient a first vegetable oil based polylol A, a second vegetable oil based polylol B and antioxidant D by optionally heating the mixture to 95 to 105° C. with stirring.
- the polyisocyanate C is then admixed into this mixture.
- the Second Component is also prepared by mixing ingredient a first vegetable oil based polylol A, Polyol E, coupling agent F and organic acid additive G at a temperature of about 95 to 105° C.
- the First and Second Components are packaged in two side-by-side cylinders which are secured together in a single package and which have dispensing plungers secured to a common dispensing handle.
- these two components are mixed with one another in a known manner or operating condition and the mixture is applied to the substrates which are to be bonded together.
- the First Component and the Second Component of embodiments of the inventive adhesive are admixed together for application in proportions of 100 parts of the First Component to 60 to 85 parts of the Second Component, preferably in proportions of 100 parts to about 75 parts.
- the two-component polyurethane adhesive according to embodiments of the invention can be applied to laminate surfaces of widely varied flexible substrates including OPP, CPP, PVDC, LDPE, PET, PA, VMPET, cellophane paper, and combinations of these substrates to the same or differing substrate.
- the two component polyurethane system of embodiments of the invention may be formed to any degree desired to serve as a sealant and an adhesive simply by adjustment of the proportions of reactants.
- the two-component polyurethane adhesive according to the current invention displays desirable physical properties such as pot life, peeling strength, tensile and shear strength.
- the adhesive of embodiments of the invention may be applied at temperatures between about 30 and 40° C., as well as at lower temperatures such as room temperature (about 25° C.).
- the cure time of embodiments of the two component polyurethane adhesive range from two or more days to a maximum of seven days.
- pot life is an important property in the application of two component polyurethane adhesives.
- a pot life of more than 30 minutes is desirable.
- the pot life of one commercial system namely ADEKIT A 200 BK, a two component room temperature cure polyurethane adhesive available from Axson Technologies, is 40 minutes at 25° C.
- the two component polyurethane adhesives of embodiments of the invention have longer pot life and lower viscosity than known systems.
- the initial viscosity ranges from about 650 mPa ⁇ s at room temperature, and after 30 minutes the viscosity may increase to about 1,500 mPa ⁇ s.
- Liofol® UR7740/UR6050 available from HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (Düsseldorf/Germany) is 1,500 mPa ⁇ s at 75° C.
- the two-component polyurethane adhesive according to preferred embodiments of the invention has a bio-based, renewable content of about 60 weight percent.
- certain embodiments of the inventive adhesive may be prepared and applied with minimal or with no migrated aromatic amines.
- Polyol B hydroxylated linseed oil
- Polyols A and B (only for Example 1) and Antioxidant D were admixed in a round-bottom flask, subsequently dehydrated at a temperature of 100° C. under a vacuum pressure less than 0.09 MPa for 2 hours. Then N 2 was fed into the flask and Polyisocyanate C was added into the mixture to react at a temperature of 80° C. to 90° C. for 2 to about 3 hours, to obtain the First Component.
- Polyols A and E, coupling agent F and organic acid additive G were admixed in a round-bottom flask, the resultant mixture was then heated up to about 100° C. and maintained at that temperature for about 2 hours for dehydration under a vacuum pressure less than 0.09 MPa to obtain the Second Component.
- the First Component was admixed with the Second Component in a ratio of 100 parts First Component to 75 parts Second Component to obtain two-component laminating adhesives.
- FIG. 1 shows the relation between the keeping time and the viscosity of the adhesive of Example 1.
- the viscosity of the adhesive was about 1500 mPa ⁇ s (at 25° C.), and from about 30 minutes to about 50 minutes after mixing the First and Second Components, the adhesive had a viscosity of about 3,150 mPa ⁇ s. That is, the adhesive of Example 1 has a longer pot life than that of the two component polyurethane adhesives products currently commercially available or known.
- Example 1 To test the peeling strength, the adhesive of Example 1 is applied to each of a VMPET/PE film, a BOPP/PE film and a BOPA/CPP film (2 g/m 2 ). The results given in Table 2 illustrate that the adhesive of Example 1 has an unexpectedly high peeling strength when applied to these films.
- Free MDI was tested for the adhesives of both Examples 1 and 2 by GC-MS (Agilent GC-MS 5975B), using the following testing conditions:
- Input mode automatic injection; injection volume: 1 ul;
- mass spectrometry is used for detecting.
- Example 1 The results illustrate that the area of MDI of Example 1 was 53456 and that of Example 2 was 119334 (average value of three testing results for each Example), illustrating that the free MDI content can be reduced by 55.2% when Polyol B was present in the First Component.
- the presence of hydroxylated linseed oil in the inventive two-component polyurethane adhesive considerably reduces the migration of aromatic isocyanate in the final products.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
- No applicable
- No applicable
- The present invention relates to two component laminating polyurethanes adhesives used in flexible packaging industry.
- Recently, complex flexible packaging is developed by industry players due to package strength requirement, food protection needs, labeling and appearance needs of package. The complex flexible packaging is prepared via the laminated films produced by so-called laminating adhesives (also called laminate adhesives). The current main stream of such a laminate adhesive is a two-component (or two-part) type polyurethane (PU) adhesive, composed of a first component base resin having an isocyanate (NCO) group (“First Component”) and a second component curing agent (also called hardener) having one or more active hydrogen groups (“Second Component”). The two-part type polyurethane adhesive has excellent adhesivity, durability, and heat resistance properties. Further, it can be widely applied in the manufacture of film/film and film/metal foil laminates including multilayer laminates in food packaging industry and other industries.
- Typically, the first component contains an isocyanate-containing polyurethane prepolymer obtained by the reaction of excess diisocyanate with a polyether and/or polyester containing two or more active hydrogen groups per molecule. The second component usually is a polyether and/or polyester functionalized with two or more hydroxyl groups or the like per molecule. The two components are combined in a predetermined ratio and applied on one of the film or metal foil substrates, which is then laminated to a second substrate. Application may be from a solution in a suitable solvent using gravure or smooth roll coating cylinders or from a solvent-free state using special application machinery.
- Solvent-free or solventless laminating adhesives, that can be applied at 100% solids and that do not contain either organic solvents or water, have a distinct advantage because they can be applied and operated at very high line speed. This is due to the fact that there is no organic solvent or water which must be removed from the adhesive. The application speed of solvent or waterbased laminating adhesives is limited because the solvent or water must be effectively dried in an oven, or otherwise removed, and such solvent/water removal process is generally time-consuming.
- In order to obtain NCO-terminated PU prepolymers, it is a common practice to react polyhydric alcohols with an excess of monomeric polyisocyanates—generally at least predominantly diisocyanates.
- It is known that, irrespective of the reaction time, a certain quantity of the polyisocyanate used in excess remains unreacted. The presence of monomeric polyisocyanate is problematical, for example, when readily volatile diisocyanates have been used as the monomeric polyisocyanate. “Readily volatile” as used herein represents the property of the substances having a vapor pressure of more than about 0.0007 mm Hg at 30° C. or at a boiling point less than about 190° C. (70 mPa).
- Even at room temperature, the significant vapor pressure of volatile diisocyanates, such as 2,4-toluene diisocyanate (TDI), is a serious issue during spray application process. Since isocyanate vapor is toxic, the use of products with a high content of readily volatile diisocyanates involves elaborate measures on the part of the users to protect themselves, more particularly elaborate measures for keeping the surrounding air fit to inhale, as legally stipulated by the maximum permitted concentration of working materials as gas, vapor or particulate matter in the air at the workplace.
- Because protective and cleaning measures generally involve considerable financial investment and operating cost, there is a need for products which, depending on the isocyanate used, have a low content of readily volatile diisocyanates.
- Currently, the vast majority of adhesives marketed are based on petroleum derived components. The use of petrochemicals such as polyester or polyether polyols is disadvantageous for a variety of reasons. Because petrochemicals are ultimately derived from petroleum, the production of a polyol requires a great deal of energy, as oil must be drilled, refined, and processed to make the polyols. Moreover, petrochemical based polyols are subject to price fluctuations and availabilities of petroleum and natural gas. As the public becomes more aware of environmental issues, there are distinct marketing disadvantages in using petrochemical based products. With the continuously growing demand for “greener” products from consumers, there is a motivation to replace polyester or polyether polyols, as used in the production of polyurethane adhesives, with a more versatile, renewable, less costly, and more environmentally friendly component.
- Efforts have been made to address these challenges. Bio-based oil sources such as soy oil, castor oil, palm oil, linseed oil, or chemicals derived from them for instance oleochemical polyols, are suggested as substitutes for the polyols in the second components of the urethane reactants, for manufacturing foams, elastomers, plastics, adhesives and other products, as they provide the promise of a relatively stable and renewable raw material source.
- U.S. Pat. Nos. 6,624,244 and 6,465,569 disclose the combination of a multi functional polyol such as ethylene glycol and blown soy oil with an isocyanate to form urethane foam. U.S. Pat. No. 6,649,667 discloses the reaction of a mixture of polyester or polyether Polyol and a blown vegetable oil with an isocyanate in a reaction-injection-molded (RIM) process to produce closed cell polyurethane foam. U.S. Pat. No. 6,180,686 discloses polyurethane foam prepared by reaction of an isocyanate with a mixture of a blown vegetable oil and a polyether polyol. Because soybeans or the like are renewable, relatively inexpensive, versatile, and environmentally friendly, they are desirable as ingredients for foam manufacturers. Soybeans may be processed to yield fatty acid triglyceride rich soy oil and protein rich soy flour.
- DE 44 01 572 A1 describes a two-component polyurethane adhesive based on an isocyanate component and on a polyol component, which contain an oleochemical polyol such as castor oil from 2 to 7 percent by weight, based on the oleochemical polyol, of at least one di- and/or trifunctional alcohol, the hydroxyl value of the alcohols or the mixtures thereof being 1,100 to 1,850. This adhesive is suitable for non-load bearing wooden structural members.
- U.S. Pat. Publication No. 20040138402A1 discloses a two-component polyurethane adhesive for wooden materials comprising components A and B wherein A) a polyol mixture, containing at least a) 10 to 98 wt. % of at least one oleochemical polyol, b) 1 to 7.5 wt. % of at least one diol having a hydroxyl value of 400 to 2,000 and c) 1 to 7.5 wt. % of at least one tri-, tetra- or pentafunctional polyol having a hydroxyl value of 200 to 2,000, the wt. % of each of a), b) and c) based on the whole of the polyol mixture, and B) at least one polyisocyanate, wherein the NCO/OH ratio of components A) and B) is within the range of 1.5 to 0.9, and further comprising from 0 to 85 wt. %, based on the total weight of the adhesive, of at least one auxiliary substance; wherein the polyol mixture contains up to 60 wt. %, based on the total weight of the polyol mixture, of a resin homogeneously dissolved therein. The adhesive is useful for bonding of load bearing wooden building components.
- U.S. Pat. Publication No. 20060276614A1 describes a bio-based multipurpose urethane adhesive in which the B side component is derived mainly from a vegetable oil, preferably soy oil. Preferably the vegetable oil derivative is a hydroxylated vegetable oil which is present in the B side component at a concentration from 65 to 98 weight percent. Optionally, a phosphated soy oil can be present in an amount from 0.1 to 15 weight percent to enhance the adhesive properties, particularly for use on metals. Also, water can be present in an amount from 0.1 to 10 weight percent with a slight amount of a surfactant to stabilize the mixture. Catalysts are included in the B side component to reduce the amount of the A side component and to accelerate curing of the adhesive. The A and B side components are admixed in amounts which provide from 40 to 90 weight percent of bio-based content in the adhesive.
- CN101280167A discloses a solvent-free polyurethane laminating adhesive that could be processed at room temperature, comprises two components, where the hardener comprises 1%-10% weight percent of polylol a) with carbon chain length less than 12 carbon, at least two
functionality 30% to 70% of polylol b) 20% to 70% of polylol c) modified by plant oil, and 0.01% to 1% of curing speed adjusting agent. The base resin comprises polyurethane prepolymers obtained by the reaction of 25% to 50% of polylol modified by plant oil or other polyester polylol or polyether polylol and 50% to 75% of diisocyanate. - In order to reduce the volatile effects of chemicals used in the laminating process, low-volatility diisocyanates, such as diphenylmethane diisocyanates (MDI), are typically used rather than high volatile diisocyanates TDI, wholly or partly. But the PU prepolymers based thereon have viscosities that are outside the range relevant to simple methods of application. Consequently, by adding an excess of diisocyanate monomers as reactive diluents, the viscosity of the polyurethane prepolymers could be reduced. Nevertheless, the incomplete reaction of the reactive diluents is capable of “migrating,” even into the bonded materials. By contact with moisture (H2O), the isocyanate groups of migrated material may react to form primary undesirable aromatic amines (R—N═C═O+H2O→R—NH2+CO2).
- Migrated material and side reaction are undesirable in the food packaging industry, because the passage of the migrated material through the packaging material can lead to contamination of the packaged food product. To avoid contamination, the laminates must be “migrate-free”. Another unwanted side effect caused by the migration is the antisealing effect during the production of bags or carrier bags using laminated plastic film. Thus, substances and preparations containing, for example, more than 0.1% free TDI fall under hazardous material regulations and have to be identified accordingly. The obligation to do so involves special measures for the food packaging industry.
- Accordingly, reactive adhesives that are suitable for the production of composite materials should have a suitable application viscosity, but not contain or release any volatile or migratable substances into the environment or packaged material as such could cause hazardous effects to human beings. The current invention addresses these issues.
- Certain embodiments of the invention provide a two-component solvent-free polyurethane adhesive comprising: a First Component comprising: a first vegetable oil based Polyol A in an amount from 20 to 40 weight percent; a second vegetable oil based Polyol B in an amount from 0.5 to 5 weight percent, and a Polyisocyanate C in amount from 60 to 74 weight percent; and a Second Component comprising: a first vegetable oil based Polyol A in an amount from 87 to 99 weight percent, and a Polyol E in an amount from 0.5 to 5 weight percent. In another embodiment, the first vegetable oil based Polyol A are selected from the group of castor oil based polylols and soybean oil based polylols. In certain embodiments of the invention, the amount of the first vegetable oil based Polyol A in the First Component is between 25 and 35 by weight percent. In alternative embodiments, the amount of the second vegetable oil based Polyol Bin the First Component is between 1 and 3 by weight percent.
- In another aspect of the invention, the second vegetable oil based Polyol B is linseed oil based polylol or tung oil based polylol. In specific embodiments, the amount of the first vegetable oil based Polyol A in the Second Component is between 92 and 97 by weight percent.
- In another aspect of the invention, the Polyisocyanate C is a polyfunctional isocyanate containing between 2 and 5 NCO groups. While in specific embodiments, the Polyisocyanate C comprises 4,4′-diphenylmethane diisocyanate (MDI).
- The two-component solvent-free polyurethane adhesive of claim 1, wherein the Polyol E is selected from low molecular polyhydric alcohols or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular polybasic carboxylic acids. The two-component solvent-free polyurethane adhesive of claim 9, wherein the Polyol E comprises low molecular diols or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular dibasic carboxylic acids. The two-component solvent-free polyurethane adhesive of
claim 10, wherein the Polyol E comprises dipropylene glycol. - In another aspect of the invention, the First Component further comprises Antioxidant D in an amount of less than about 0.5 weight percent. In specific embodiments, the Antioxidant D is selected from the group consisting of triphenyl phosphite, butylated hydroxyanisole (BHA), dibutyl hydroxy toluene (BHT), ditert-butylhydro quinone (TBHQ) and propyl gallate (PG).
- In another aspect of the invention, the Second Component further comprises Coupling Agent F in an amount of less than about 0.5 weight percent. In specific embodiments, the Coupling Agent F is selected from the group consisting of silane coupling agents, chromium complex coupling agents and titante coupling agents.
- In another aspect of the invention, the Second Component further comprises an Organic Acid Additive G in an amount of less than about 0.5 weight percent. In specific embodiments, the Organic Acid Additive G is selected from the group consisting of citric acid, acetic acid, acetic acid, oleic acid, and tannin.
- In another aspect of the invention, the First Component and the Second Component of the adhesive are present in proportions of 100 parts of the First Component to 60 to 85 parts of the Second Component. In specific embodiments, the proportion of the First Component and the Second Component is 100 parts to 75 parts.
-
FIG. 1 illustrates the viscosity variation of the adhesive in Example 1 as a function of time. - The vegetable oil based polylol, also called hydroxylated vegetable oil, is derived from a vegetable oil. As used herein, the term a first vegetable oil based polylol A comprises castor oil based polylol or soybean oil based polylol, and the term a second vegetable oil based polylol B comprises linseed oil based polylol or tung oil based polylol.
- The hydroxylated vegetable oil can be prepared by hydrolyzing an epoxidized vegetable oil. The crude vegetable oil is generally refined by settling to separate gums and other insoluble and impurities such as color bodies and phospholipids. The oil layer is removed and can be further treated with an alkali to remove free fatty acids which may be present. The refined vegetable oil can be epoxidized by reaction with peroxide such as hydrogen peroxide, and per-organic acids, such as peracetic acid, perbenzoic acid. The vegetable oils can also be epoxidized by reaction with oxygen and peroxide-containing reagents, which donates a single oxygen. Typical peroxide reagents include hydrogen peroxide, peroxycarboxylic acids (generated in situ or preformed), and alkyl hydroperoxides. The most preferred preparation is the oxidation of vegetable oil, preferably by blowing air through the vegetable oil for a sufficient time to oxidize the unsaturated groups of the triglyceride esters in the vegetable oil. The blown or epoxidized vegetable oil is hydrolyzed to open the epoxy rings and form adjacent hydroxyl groups, thus preparing a reactive polyol. The hydrolysis is preferably conducted by reacting the blown vegetable oil with water at a temperature from 170° C. to about 200° C. over a period of time from about 5 hours to about 10 hours.
- In certain preferred embodiments, the first vegetable oil based polylol A is castor oil based polylol having a hydroxyl number from 50 to 190, depending on the degree of adhesion desired in the final adhesive composition. For adhesive compositions having high adhesion, a hydroxylated derivative having a hydroxyl number in the high end of the range, e.g., from 135 to 190 is used. For less adhesive products, such as those to be applied as a carpet adhesive, hydroxylated soy oil having a hydroxyl number from 50 to about 135 can be used. The amount of the first vegetable oil based polylol A in the First Component is preferably from 25 to 35 by weight percent. The amount of the first vegetable oil based polylol A in the Second Component is preferably from 92 to 97 by weight percent.
- In certain preferred embodiments, the second vegetable oil based polylol B is linseed oil based polylol for its availability and high content of triglycerides of unsaturated fatty acids such as linoleic, oleic and linolenic acids and lesser contents of triglycerides of saturated fatty acids such as palmitic and stearic acids. Having a high content of unsaturated bonds, linseed oil based polylol is particularly susceptible to reactions upon exposure to free aromatic amines. Only small content of linseed oil based polylol can considerably decrease the content of free aromatic amines in resulted product. Other vegetable oils with high content of unsaturated bonds, such as tung oil, also can show desired performance to free aromatic amines. The person having ordinary skill in the art can give more such vegetable oils. The amount of the second vegetable oil based polylol B in the First Component is preferably from 1 to 3 by weight percent.
- The said polyisocyanate C is polyfunctional. Suitable polyfunctional isocyanates preferably contain on average 2 to at most 5, preferably up to 4 and in particular 2 or 3, NCO groups. Examples of suitable isocyanates include 2,4′/4,4′-tolylene diisocyanate (TDI), 2,4′/4,4′-diphenylmethane diisocyanate (MDI), phenyl isocyanate, 1,5-naphthylene diisocyanate, hydrogenated MDI (HI2MDI), xylylene diisocyanate (XDI), m- and p-tetramethyl xylylene diisocyanate (TMXDI), 4,4′-diphenyldimethylmethane diisocyanate, tetraalkyldiphenylmethane diisocyanate, 4,4′-dibenzyl diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, 1-methyl-2,4-diisocyanatocyclohexane, 1,6-diisocyanato-2,2,4-trimethylhexane, 1,6-diisocyanato-2,4,4-trimethylhexane, 1-isocyanatomethyl-3-isocyanato-1,5,5-trimethylcyclohexane (IPDI), or combinations thereof. 4,4′-diphenylmethane diisocyanate (MDI) is preferred in certain embodiments. The amount of the said polyisocyanate C in the First Component is preferably from 65 to 70 by weight percent.
- The said Polyol E in the Second Component, as a reactive dilution agent in the adhesive, comprises low molecular polyhydric alcohols (preferably diols) or the corresponding polyester polyols prepared by the reaction of the low molecular polyols with low molecular polybasic (preferably dibasic) carboxylic acids. Suitable polyhydric alcohols include ethylene glycol, 1,2- and 1,3-propanediol, dipropylene glycol, 1,4- and 2,3-butanediol, 1,6-hexanediol, 1,8-octanediol, neopentyl glycol, 1,3- and 1,4-bis(hydroxy-methyl)cyclohexane, 2-methyl-1,3-propanediol, glycerol, trimethylolpropane, 1,2,6-hexanetriol, 1,2,4-butanetriol, trimethylolethane, pentaerythritol, quinnitol, mannitol, sorbitol, methyl glycoside, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycols, dipropylene glycol, polypropylene glycols, dibutylene glycol, and poly-butylene glycols. While dipropylene glycol is preferred, the polycarboxylic acids may be aliphatic, cycloaliphatic, aromatic, or heterocyclic and may be substituted, e.g., by halogen atoms, and/or unsaturated. Suitable polycarboxylic acids include succinic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, trimellitic 55 acid, phthalic acid anhydride, tetrahydrophthalic acid anhydride, hexahydrophthalic acid anhydride, tetrachlorophthalic acid anhydride, endomethylene tetrahydrophthalic acid anhydride, glutaric acid anhydride, maleic acid, maleic acid anhydride, fumaric acid, dimeric and 60 trimeric fatty acids, dimethyl terephthalic, and terephthalic acid bis-glycol esters. The amount of polylol E in the Second Component is preferably from 1 to 2 by weight percent.
- The two-component polyurethane adhesive according to the certain embodiments of the invention may also contain auxiliary substances, which preferably are completely or partially admixed to the First Component and/or the Second Component. Substances except for fillers are usually added in small quantities in order to modify the properties of the essential components in the required direction, for example, to accommodate their workability, stability in storage and also properties in use to the particular field of application. Useful auxiliary substances may include: fillers, flow-control agents, deaerators, thixotropic agents, catalysts, antioxidants, dyes, drying agents, flame-proofing agents, solvents and wetting agents. In one embodiment of the invention, the First Component further comprises antioxidant D in amounts of less than about 0.5 weight percent, wherein the antioxidant D comprises triphenyl phosphite, butylated hydroxyanisole (BHA), dibutyl hydroxy toluene (BHT), ditert-butylhydro quinone (TBHQ), propyl gallate (PG), or combinations thereof. In another embodiment of the invention, the Second Component further comprises a coupling agent F in amounts of less than about 0.5 weight percent, wherein the coupling agent F comprises silane coupling agents, chromium complex coupling agent, titante coupling agent, or combinations thereof. The Second Component may also further comprises less than about 0.5 weight percent of organic acid additive G, such as citric acid, acetic acid, oleic acid, tannin, and combinations thereof.
- To produce the claimed two-component polyurethane adhesive, firstly, the First Component is prepared by mixing ingredient a first vegetable oil based polylol A, a second vegetable oil based polylol B and antioxidant D by optionally heating the mixture to 95 to 105° C. with stirring. The polyisocyanate C is then admixed into this mixture. The Second Component is also prepared by mixing ingredient a first vegetable oil based polylol A, Polyol E, coupling agent F and organic acid additive G at a temperature of about 95 to 105° C.
- It is conventional to store the First and Second Components in separate containers sized in conformity to the relative proportions of the Components, until they are applied in two-component form, i.e. up to the time of their application. In a preferred embodiment of the invention, the First Component and Second Component are packaged in two side-by-side cylinders which are secured together in a single package and which have dispensing plungers secured to a common dispensing handle. For the application, these two components are mixed with one another in a known manner or operating condition and the mixture is applied to the substrates which are to be bonded together.
- The First Component and the Second Component of embodiments of the inventive adhesive are admixed together for application in proportions of 100 parts of the First Component to 60 to 85 parts of the Second Component, preferably in proportions of 100 parts to about 75 parts.
- The two-component polyurethane adhesive according to embodiments of the invention can be applied to laminate surfaces of widely varied flexible substrates including OPP, CPP, PVDC, LDPE, PET, PA, VMPET, cellophane paper, and combinations of these substrates to the same or differing substrate. The two component polyurethane system of embodiments of the invention may be formed to any degree desired to serve as a sealant and an adhesive simply by adjustment of the proportions of reactants.
- The two-component polyurethane adhesive according to the current invention displays desirable physical properties such as pot life, peeling strength, tensile and shear strength. Significantly, the adhesive of embodiments of the invention may be applied at temperatures between about 30 and 40° C., as well as at lower temperatures such as room temperature (about 25° C.). In addition, the cure time of embodiments of the two component polyurethane adhesive range from two or more days to a maximum of seven days.
- Moreover, pot life (also known as working life or usable life) is an important property in the application of two component polyurethane adhesives. Generally, a pot life of more than 30 minutes is desirable. For example, the pot life of one commercial system, namely ADEKIT A 200 BK, a two component room temperature cure polyurethane adhesive available from Axson Technologies, is 40 minutes at 25° C. The two component polyurethane adhesives of embodiments of the invention have longer pot life and lower viscosity than known systems. The initial viscosity ranges from about 650 mPa·s at room temperature, and after 30 minutes the viscosity may increase to about 1,500 mPa·s. In contrast, the initial viscosity of another commercial system, Liofol® UR7740/UR6050 available from HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN (Düsseldorf/Germany) is 1,500 mPa·s at 75° C.
- The two-component polyurethane adhesive according to preferred embodiments of the invention has a bio-based, renewable content of about 60 weight percent.
- More importantly, due to the vegetable oil derivatives especially the second vegetable oil based polylol B, certain embodiments of the inventive adhesive may be prepared and applied with minimal or with no migrated aromatic amines.
- The following examples are illustrative of certain embodiments of the invention without being limitative thereof.
- In the following examples, the raw materials are as follows:
- Polyol A—hydroxylated castor oil
- Polyol B—hydroxylated linseed oil
- Polyisocyanate C—4,4′-diphenylmethane diisocyanate (MDI), Bayer 2640
- Antioxidant D—triphenyl phosphite
- Polyol E—dipropylene glycol
- Coupling Agent F—silane coupling agents
- Organix Acid Additive G—citric acid
- To prepare the adhesives, the raw materials were used in amounts showed in Table 1.
-
TABLE 1 Content of Content First & Second Raw (weight parts) Components Materials Example 1 Example 2 (weight parts) First Polyol A 50 50 100 Component Polyol B 3 0 Polyisocyanate C 100 100 Antioxidant D 0.1 0.1 Second Polyol A 100 100 75 Component Polyol E 1.5 1.5 Coupling Agent F 0.1 0.1 Organix Acid 0.1 0.1 Additive G - Polyols A and B (only for Example 1) and Antioxidant D were admixed in a round-bottom flask, subsequently dehydrated at a temperature of 100° C. under a vacuum pressure less than 0.09 MPa for 2 hours. Then N2 was fed into the flask and Polyisocyanate C was added into the mixture to react at a temperature of 80° C. to 90° C. for 2 to about 3 hours, to obtain the First Component.
- Polyols A and E, coupling agent F and organic acid additive G were admixed in a round-bottom flask, the resultant mixture was then heated up to about 100° C. and maintained at that temperature for about 2 hours for dehydration under a vacuum pressure less than 0.09 MPa to obtain the Second Component.
- The First Component was admixed with the Second Component in a ratio of 100 parts First Component to 75 parts Second Component to obtain two-component laminating adhesives.
-
FIG. 1 shows the relation between the keeping time and the viscosity of the adhesive of Example 1. As illustrated byFIG. 1 , up to 30 minutes following mixing the First and Second Components, the viscosity of the adhesive was about 1500 mPa·s (at 25° C.), and from about 30 minutes to about 50 minutes after mixing the First and Second Components, the adhesive had a viscosity of about 3,150 mPa·s. That is, the adhesive of Example 1 has a longer pot life than that of the two component polyurethane adhesives products currently commercially available or known. - To test the peeling strength, the adhesive of Example 1 is applied to each of a VMPET/PE film, a BOPP/PE film and a BOPA/CPP film (2 g/m2). The results given in Table 2 illustrate that the adhesive of Example 1 has an unexpectedly high peeling strength when applied to these films.
-
TABLE 2 VMPET/PE BOPP/PE film film BOPA/CPP film Peel Strength Traverse 2.3 Cannot be 5.8 peeled off (N/mm2) Vertical 2.8 Cannot be Cannot be peeled peeled off off (Conditions: room temperature) - Free MDI was tested for the adhesives of both Examples 1 and 2 by GC-MS (Agilent GC-MS 5975B), using the following testing conditions:
- Input mode: automatic injection; injection volume: 1 ul;
- chromatographic column: HP-5MS, 30 m*250 um*0.25 um;
- carrier gas: He;
- flow rate of carrier gas: 1 ml/min;
- mass spectrometry is used for detecting.
- The results illustrate that the area of MDI of Example 1 was 53456 and that of Example 2 was 119334 (average value of three testing results for each Example), illustrating that the free MDI content can be reduced by 55.2% when Polyol B was present in the First Component. Thus, the presence of hydroxylated linseed oil in the inventive two-component polyurethane adhesive considerably reduces the migration of aromatic isocyanate in the final products.
Claims (19)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/717,610 US8022164B1 (en) | 2010-03-04 | 2010-03-04 | Two-component solvent-free polyurethane adhesives |
PCT/US2011/027212 WO2011109720A1 (en) | 2010-03-04 | 2011-03-04 | Two-component solvent-free polyurethane adhesives |
CN2011800122639A CN102844398B (en) | 2010-03-04 | 2011-03-04 | Two-component solvent-free polyurethane adhesives |
EP11751429.9A EP2542638B1 (en) | 2010-03-04 | 2011-03-04 | Two-component solvent-free polyurethane adhesives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/717,610 US8022164B1 (en) | 2010-03-04 | 2010-03-04 | Two-component solvent-free polyurethane adhesives |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110218275A1 true US20110218275A1 (en) | 2011-09-08 |
US8022164B1 US8022164B1 (en) | 2011-09-20 |
Family
ID=44531876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/717,610 Expired - Fee Related US8022164B1 (en) | 2010-03-04 | 2010-03-04 | Two-component solvent-free polyurethane adhesives |
Country Status (4)
Country | Link |
---|---|
US (1) | US8022164B1 (en) |
EP (1) | EP2542638B1 (en) |
CN (1) | CN102844398B (en) |
WO (1) | WO2011109720A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120208957A1 (en) * | 2009-07-02 | 2012-08-16 | Adco Products, Inc. | Two-part foamable adhesive with renewable polyol |
CN103820069A (en) * | 2014-03-18 | 2014-05-28 | 新东方油墨有限公司 | Double-component solvent-free polyurethane adhesive and preparation method thereof |
CN105111997A (en) * | 2015-09-08 | 2015-12-02 | 江南大学 | Preparation method of double-component non-solvent polyurethane adhesive used for food-grade packaging |
CN106085333A (en) * | 2016-06-13 | 2016-11-09 | 江南大学 | A kind of composite membrane preparation method of Semen sojae atricolor oil base no-solvent polyurethane adhesive |
CN106674464A (en) * | 2016-12-27 | 2017-05-17 | 上海汇得科技股份有限公司 | Polyurethane resin for OPP (O-Phenylphenol) membrane coating and preparation method of polyurethane resin |
WO2017166003A1 (en) * | 2016-03-28 | 2017-10-05 | Dow Global Technologies Llc | Two-component solventless adhesive compositions and methods of making same |
CN108264881A (en) * | 2018-02-11 | 2018-07-10 | 江苏力合粘合剂有限公司 | A kind of high just viscous solvent-type double-component polyurethane adhesive and preparation method thereof |
JP2019532143A (en) * | 2016-09-19 | 2019-11-07 | ダウ グローバル テクノロジーズ エルエルシー | Two-component solventless adhesive compositions and methods for making them |
US11171306B2 (en) * | 2017-08-16 | 2021-11-09 | Boe Technology Group Co., Ltd. | Package substrate, manufacturing method thereof, OLED display panel and manufacturing method thereof |
CN113710764A (en) * | 2019-04-24 | 2021-11-26 | 汉高股份有限及两合公司 | Two-component solvent-free polyurethane laminating adhesive composition |
JPWO2021256270A1 (en) * | 2020-06-18 | 2021-12-23 | ||
US11220617B2 (en) * | 2016-07-11 | 2022-01-11 | Dow Global Technologies Llc | High-solids content solvent-based adhesive compositions and methods of making same |
CN114479744A (en) * | 2021-12-31 | 2022-05-13 | 广州市昌鹏实业有限公司 | Development of bi-component oily optical pressure-sensitive adhesive |
CN116355560A (en) * | 2023-02-21 | 2023-06-30 | 南京林业大学 | Environment-friendly adhesive for organic acid-polyol-based formaldehyde-free high-performance plywood, and preparation method and application thereof |
CN116478608A (en) * | 2023-05-11 | 2023-07-25 | 河北宇阳泽丽防水材料有限公司 | High-cohesiveness and high-extensibility bi-component environment-friendly polyurethane waterproof material |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2888303B1 (en) * | 2012-08-24 | 2020-10-21 | Ashland Licensing And Intellectual Property, LLC | Solvent free polyurethane laminating adhesive with high oxygen transfer rate |
CN103045148A (en) * | 2012-12-11 | 2013-04-17 | 浙江农林大学 | Method for producing soya-bean oil alcoholysate polyurethane adhesive |
WO2014161638A1 (en) * | 2013-04-05 | 2014-10-09 | Fischerwerke Gmbh & Co. Kg | Biogenic fluid non-reactive thinning agents in synthetic resin adhesives |
CN103280156B (en) * | 2013-06-17 | 2015-04-08 | 海南赛诺实业有限公司 | Plastic tag and manufacturing method thereof |
CN103709985B (en) * | 2013-12-03 | 2015-02-25 | 田德光 | Floor board joint filling adhesive and preparation method therefor |
CN106748767B (en) * | 2015-11-19 | 2020-03-17 | 中国石油化工股份有限公司 | Low-hydroxyl-value vegetable oil-based polyol and preparation method thereof |
MX2018007949A (en) | 2016-01-19 | 2018-08-09 | Fuller H B Co | One-part polyurethane adhesive composition, method of making a laminate, and laminate. |
BR112018069669B1 (en) * | 2016-03-28 | 2022-08-02 | Dow Global Technologies Llc | TWO-COMPONENT SOLVENT-FREE ADHESIVE COMPOSITION, METHOD TO FORM A LAMINATED AND LAMINATED |
TWI791434B (en) * | 2016-05-10 | 2023-02-11 | 美商陶氏全球科技有限責任公司 | Two-component solventless adhesive compositions comprising an amine-initiated polyol |
CN105969293B (en) * | 2016-07-01 | 2017-09-05 | 陈肖强 | A kind of double component solvent-free vegetable oil base adhesive |
CN106753175B (en) * | 2016-12-16 | 2020-08-18 | 山西省交通科学研究院 | Soybean oil-based polyurethane binder and preparation method thereof |
US20200263064A1 (en) * | 2017-09-05 | 2020-08-20 | Dow Global Technologies Llc | Two-component solvent based adhesive compositions and methods of making same |
EP3880766B1 (en) | 2018-11-16 | 2023-08-02 | Dow Global Technologies Llc | Solventless adhesive composition and process for making and use in forming a laminate |
EP3660067A1 (en) | 2018-11-30 | 2020-06-03 | Henkel AG & Co. KGaA | Adhesive composition for flexible lamination |
CN109762507B (en) * | 2018-12-21 | 2020-11-06 | 中山市康和化工有限公司 | Biomass polyurethane adhesive and preparation method thereof |
CN110305615B (en) * | 2019-06-13 | 2021-08-10 | 南京威邦新材料有限公司 | Preparation method of sprayable bi-component solvent-free polyurethane adhesive |
CN110684502B (en) * | 2019-11-13 | 2021-07-09 | 江苏华大新材料有限公司 | Solvent-free two-component polyurethane adhesive for aluminum plating transfer resistance and preparation method thereof |
CN111234186A (en) * | 2020-01-14 | 2020-06-05 | 湖州欧美化学有限公司 | Polyester polyol for polyurethane adhesive, preparation method thereof and polyurethane adhesive |
US11746266B2 (en) | 2020-10-01 | 2023-09-05 | The Dow Chemical Company | Adhesive composition |
FR3120870B1 (en) * | 2021-03-18 | 2024-03-22 | Bostik Sa | LAMINATION ADHESIVE |
CN114276774A (en) * | 2021-12-21 | 2022-04-05 | 上海宏诺建筑科技有限公司 | Solvent-free bi-component foamed polyurethane adhesive and application thereof |
WO2024098320A1 (en) * | 2022-11-10 | 2024-05-16 | Dow Global Technologies Llc | Polyurethane adhesive |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6180686B1 (en) * | 1998-09-17 | 2001-01-30 | Thomas M. Kurth | Cellular plastic material |
US20040138402A1 (en) * | 2001-02-19 | 2004-07-15 | Lothar Thiele | Two component polyurethane adhesive for wooden materials |
US20060276614A1 (en) * | 2005-04-12 | 2006-12-07 | Niemann Lance K | Bio-based, multipurpose adhesive |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345311A (en) * | 1965-03-24 | 1967-10-03 | Baker Castor Oil Co | Castor oil, diisocyanate and hydroxy aliphatic acid ester prepolymers and elastomeric products prepared therefrom |
US4256617A (en) * | 1979-11-01 | 1981-03-17 | Nl Industries, Inc. | Catalyzed non-toxic polyurethane forming compositions and separatory devices employing the same |
DE4401572B4 (en) | 1994-01-20 | 2006-07-06 | Henkel Kgaa | Two-component polyurethane adhesives with improved adhesion |
MX9703702A (en) * | 1996-05-22 | 1998-06-30 | Fuller H B Licensing Financ | Improved isocyanate-based laminating adhesives. |
JP2002249745A (en) * | 2001-02-27 | 2002-09-06 | Mitsui Takeda Chemicals Inc | Two-part curable solventless adhesive composition |
US20030083394A1 (en) | 2001-06-07 | 2003-05-01 | Clatty Jan L. | Polyurethane foams having improved heat sag and a process for their production |
US7071248B2 (en) * | 2003-01-21 | 2006-07-04 | Ashland Licensing And Intellectual Property, Llc | Adhesive additives and adhesive compositions containing an adhesive additive |
EP1803756A4 (en) * | 2004-10-19 | 2012-06-20 | Nippon Polyurethane Kogyo Kk | Polyurethane resin forming composition, process for production of sealant, and process for production of hollow-fiber membrane modules |
US8933188B2 (en) * | 2004-11-12 | 2015-01-13 | Henkel US IP LLC | Low misting laminating adhesives |
US8382937B2 (en) * | 2005-02-14 | 2013-02-26 | Henkel Corporation | Laminating adhesives based on triglyceride-derived polyols |
US20070299167A1 (en) | 2006-06-23 | 2007-12-27 | Gang-Fung Chen | Two-part bio-based furfuryl adhesive composition for engineered wood |
CN101280167B (en) | 2007-04-02 | 2011-11-02 | 上海康达化工新材料股份有限公司 | Solvent-free polyurethane laminating adhesive for normal temperature coating, preparation and use thereof |
DE102007062529A1 (en) * | 2007-12-20 | 2009-06-25 | Henkel Ag & Co. Kgaa | 2K PU adhesive for bonding fiber molded parts |
CN101289602A (en) | 2008-05-22 | 2008-10-22 | 上海世鹏聚氨酯科技发展有限公司 | Liquid solvent-free environment-protection nano-high molecule spinning and adhering material |
-
2010
- 2010-03-04 US US12/717,610 patent/US8022164B1/en not_active Expired - Fee Related
-
2011
- 2011-03-04 CN CN2011800122639A patent/CN102844398B/en active Active
- 2011-03-04 EP EP11751429.9A patent/EP2542638B1/en active Active
- 2011-03-04 WO PCT/US2011/027212 patent/WO2011109720A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6180686B1 (en) * | 1998-09-17 | 2001-01-30 | Thomas M. Kurth | Cellular plastic material |
US6465569B1 (en) * | 1998-09-17 | 2002-10-15 | Urethane Soy Systems Co. | Plastic material |
US6624244B2 (en) * | 1998-09-17 | 2003-09-23 | Urethane Soy Systems Company | Plastic material |
US20040138402A1 (en) * | 2001-02-19 | 2004-07-15 | Lothar Thiele | Two component polyurethane adhesive for wooden materials |
US20060276614A1 (en) * | 2005-04-12 | 2006-12-07 | Niemann Lance K | Bio-based, multipurpose adhesive |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120208957A1 (en) * | 2009-07-02 | 2012-08-16 | Adco Products, Inc. | Two-part foamable adhesive with renewable polyol |
CN103820069A (en) * | 2014-03-18 | 2014-05-28 | 新东方油墨有限公司 | Double-component solvent-free polyurethane adhesive and preparation method thereof |
CN105111997A (en) * | 2015-09-08 | 2015-12-02 | 江南大学 | Preparation method of double-component non-solvent polyurethane adhesive used for food-grade packaging |
US11312888B2 (en) | 2016-03-28 | 2022-04-26 | Dow Global Technologies Llc | Two-component solventless adhesive compositions and methods of making same |
WO2017166003A1 (en) * | 2016-03-28 | 2017-10-05 | Dow Global Technologies Llc | Two-component solventless adhesive compositions and methods of making same |
CN108884373A (en) * | 2016-03-28 | 2018-11-23 | 陶氏环球技术有限责任公司 | Bi-component adhesive for solvent-free use composition and preparation method thereof |
CN106085333A (en) * | 2016-06-13 | 2016-11-09 | 江南大学 | A kind of composite membrane preparation method of Semen sojae atricolor oil base no-solvent polyurethane adhesive |
US11220617B2 (en) * | 2016-07-11 | 2022-01-11 | Dow Global Technologies Llc | High-solids content solvent-based adhesive compositions and methods of making same |
JP7030111B2 (en) | 2016-09-19 | 2022-03-04 | ダウ グローバル テクノロジーズ エルエルシー | Two-component solvent-free adhesive composition and method for producing them |
JP2019532143A (en) * | 2016-09-19 | 2019-11-07 | ダウ グローバル テクノロジーズ エルエルシー | Two-component solventless adhesive compositions and methods for making them |
CN106674464A (en) * | 2016-12-27 | 2017-05-17 | 上海汇得科技股份有限公司 | Polyurethane resin for OPP (O-Phenylphenol) membrane coating and preparation method of polyurethane resin |
US11171306B2 (en) * | 2017-08-16 | 2021-11-09 | Boe Technology Group Co., Ltd. | Package substrate, manufacturing method thereof, OLED display panel and manufacturing method thereof |
CN108264881A (en) * | 2018-02-11 | 2018-07-10 | 江苏力合粘合剂有限公司 | A kind of high just viscous solvent-type double-component polyurethane adhesive and preparation method thereof |
CN113710764A (en) * | 2019-04-24 | 2021-11-26 | 汉高股份有限及两合公司 | Two-component solvent-free polyurethane laminating adhesive composition |
WO2021256270A1 (en) * | 2020-06-18 | 2021-12-23 | Dic株式会社 | Adhesive agent, laminate, method for manufacturing laminate, and packaging material |
JPWO2021256270A1 (en) * | 2020-06-18 | 2021-12-23 | ||
CN115461424A (en) * | 2020-06-18 | 2022-12-09 | Dic株式会社 | Adhesive, laminate, method for producing laminate, and packaging material |
JP7207609B2 (en) | 2020-06-18 | 2023-01-18 | Dic株式会社 | Adhesive, laminate, method for producing laminate, packaging material |
JP2023024587A (en) * | 2020-06-18 | 2023-02-16 | Dic株式会社 | Adhesive agent, laminate, method for manufacturing laminate, and packaging material |
CN114479744A (en) * | 2021-12-31 | 2022-05-13 | 广州市昌鹏实业有限公司 | Development of bi-component oily optical pressure-sensitive adhesive |
CN116355560A (en) * | 2023-02-21 | 2023-06-30 | 南京林业大学 | Environment-friendly adhesive for organic acid-polyol-based formaldehyde-free high-performance plywood, and preparation method and application thereof |
CN116478608A (en) * | 2023-05-11 | 2023-07-25 | 河北宇阳泽丽防水材料有限公司 | High-cohesiveness and high-extensibility bi-component environment-friendly polyurethane waterproof material |
Also Published As
Publication number | Publication date |
---|---|
WO2011109720A1 (en) | 2011-09-09 |
CN102844398B (en) | 2013-11-27 |
EP2542638A1 (en) | 2013-01-09 |
EP2542638B1 (en) | 2019-10-23 |
EP2542638A4 (en) | 2016-05-25 |
US8022164B1 (en) | 2011-09-20 |
CN102844398A (en) | 2012-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8022164B1 (en) | Two-component solvent-free polyurethane adhesives | |
US11015094B2 (en) | Polyurethane adhesives for bonding low surface energy films | |
JP6949722B2 (en) | Polyurethane-based binder system | |
JP5889887B2 (en) | Adhesive for TPU lamination | |
US9458363B2 (en) | Polyurethane lamination adhesive | |
JP7231623B2 (en) | Polyester polyol adhesive based on furancarboxylic acid obtained from renewable raw materials | |
US20190270838A1 (en) | Low-Viscosity, Rapid Curing Laminating Adhesive Composition | |
EP2049612A1 (en) | Two component solventless polyurethane laminating adhesives based on 1,4:3,6 dianhydrohexitols | |
JP7156176B2 (en) | LAMINATE ADHESIVE HAVING RELEABILITY FROM COMPOSITE FILM, LAMINATE, AND METHOD FOR RECYCLING SHEET SUBSTRATE | |
KR101093528B1 (en) | Polyurethane adhesive composition and process for preparing the same | |
US11292947B2 (en) | Polyurethane-based binder system | |
JP2024037964A (en) | Adhesive composition and laminate | |
JP2022536966A (en) | Retort adhesive composition | |
JP2022536962A (en) | Retort adhesive composition | |
CN103214650A (en) | Isocyanate-terminated prepolymer | |
JP6777258B1 (en) | Two-component curable adhesive, laminate and packaging | |
JP2006160904A (en) | Adhesive agent composition | |
JP2022070384A (en) | Reactive adhesive, laminate and package | |
US20230174835A1 (en) | Epoxy phosphate ester | |
TW202346526A (en) | High performance laminating adhesives with low free monomer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MICROVAST TECHNOLOGIES, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, YANG;NING, CHAOFENG;YUAN, XINBING;AND OTHERS;REEL/FRAME:024347/0625 Effective date: 20100317 Owner name: HUZHOU OCHEM CHEMICAL CO., LTD., CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, YANG;NING, CHAOFENG;YUAN, XINBING;AND OTHERS;REEL/FRAME:024347/0625 Effective date: 20100317 |
|
AS | Assignment |
Owner name: MICROVAST, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SUNKEM, INC. F/K/A MICROVAST TECHNOLOGIES, INC.;REEL/FRAME:026533/0317 Effective date: 20110629 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
CC | Certificate of correction | ||
FPAY | Fee payment |
Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20230920 |