EP3997161A1 - Method for producing flameproof pur/pir rigid foams - Google Patents
Method for producing flameproof pur/pir rigid foamsInfo
- Publication number
- EP3997161A1 EP3997161A1 EP20737011.5A EP20737011A EP3997161A1 EP 3997161 A1 EP3997161 A1 EP 3997161A1 EP 20737011 A EP20737011 A EP 20737011A EP 3997161 A1 EP3997161 A1 EP 3997161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyol
- pur
- acid
- polyol formulation
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000006260 foam Substances 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 229920005862 polyol Polymers 0.000 claims abstract description 97
- 150000003077 polyols Chemical class 0.000 claims abstract description 94
- 239000000203 mixture Substances 0.000 claims abstract description 72
- 239000004814 polyurethane Substances 0.000 claims abstract description 50
- -1 alkylphenyl ethers Chemical class 0.000 claims abstract description 43
- 238000009472 formulation Methods 0.000 claims abstract description 41
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 23
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 22
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 16
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 13
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims description 29
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 20
- 239000003063 flame retardant Substances 0.000 claims description 15
- 239000012948 isocyanate Substances 0.000 claims description 15
- 150000002513 isocyanates Chemical class 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 13
- 239000011541 reaction mixture Substances 0.000 claims description 13
- 239000004604 Blowing Agent Substances 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 150000002334 glycols Chemical class 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 150000002170 ethers Chemical class 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 35
- 229920002635 polyurethane Polymers 0.000 abstract description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 48
- 229920000582 polyisocyanurate Polymers 0.000 description 38
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 27
- 229920000570 polyether Polymers 0.000 description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 17
- 239000004721 Polyphenylene oxide Substances 0.000 description 16
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 239000007858 starting material Substances 0.000 description 14
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 12
- 150000002009 diols Chemical class 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 10
- 235000014113 dietary fatty acids Nutrition 0.000 description 9
- 239000000194 fatty acid Substances 0.000 description 9
- 229930195729 fatty acid Natural products 0.000 description 9
- 229920000515 polycarbonate Polymers 0.000 description 9
- 239000004417 polycarbonate Substances 0.000 description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 8
- 229910052783 alkali metal Inorganic materials 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 8
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 8
- 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 description 7
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 7
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 235000011187 glycerol Nutrition 0.000 description 6
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 150000002894 organic compounds Chemical class 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- 239000001361 adipic acid Substances 0.000 description 5
- 235000011037 adipic acid Nutrition 0.000 description 5
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 5
- 150000001735 carboxylic acids Chemical class 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 4
- JQQFZXSKPIMYRS-UHFFFAOYSA-N 1,3,5-tris(2-phenylethenyl)-2-[2,4,6-tris(2-phenylethenyl)phenoxy]benzene Chemical compound O(c1c(C=Cc2ccccc2)cc(C=Cc2ccccc2)cc1C=Cc1ccccc1)c1c(C=Cc2ccccc2)cc(C=Cc2ccccc2)cc1C=Cc1ccccc1 JQQFZXSKPIMYRS-UHFFFAOYSA-N 0.000 description 4
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 4
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 4
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 4
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 4
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 3
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000004359 castor oil Substances 0.000 description 3
- 235000019438 castor oil Nutrition 0.000 description 3
- 239000002666 chemical blowing agent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229960002887 deanol Drugs 0.000 description 3
- 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 description 3
- 150000008282 halocarbons Chemical class 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 3
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 235000013772 propylene glycol Nutrition 0.000 description 3
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 3
- 229960003656 ricinoleic acid Drugs 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 3
- YWWVWXASSLXJHU-AATRIKPKSA-N (9E)-tetradecenoic acid Chemical compound CCCC\C=C\CCCCCCCC(O)=O YWWVWXASSLXJHU-AATRIKPKSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- GHPVDCPCKSNJDR-UHFFFAOYSA-N 2-hydroxydecanoic acid Chemical compound CCCCCCCCC(O)C(O)=O GHPVDCPCKSNJDR-UHFFFAOYSA-N 0.000 description 2
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 235000019483 Peanut oil Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 235000011054 acetic acid Nutrition 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- MBMBGCFOFBJSGT-KUBAVDMBSA-N all-cis-docosa-4,7,10,13,16,19-hexaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O MBMBGCFOFBJSGT-KUBAVDMBSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- UWHZIFQPPBDJPM-BQYQJAHWSA-N trans-vaccenic acid Chemical compound CCCCCC\C=C\CCCCCCCCCC(O)=O UWHZIFQPPBDJPM-BQYQJAHWSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- KVMPUXDNESXNOH-UHFFFAOYSA-N tris(1-chloropropan-2-yl) phosphate Chemical compound ClCC(C)OP(=O)(OC(C)CCl)OC(C)CCl KVMPUXDNESXNOH-UHFFFAOYSA-N 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000008170 walnut oil Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/225—Catalysts containing metal compounds of alkali or alkaline earth metals
-
- 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
- C08G18/2815—Monohydroxy compounds
- C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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- 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
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- 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
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- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
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- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4244—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
- C08G18/4247—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
- C08G18/425—Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids the polyols containing one or two ether groups
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- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- 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
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- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
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- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/10—Water or water-releasing compounds
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/06—Polyurethanes from polyesters
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
Definitions
- the present invention relates to a polyol formulation for producing flame-retardant polyurethane / polyisocyanurate rigid foams (hereinafter referred to individually or collectively as “PUR / PIR rigid foams”) containing a polyester polyol with an OH number ⁇ 250 mg KOH / g, a functionality of 1.5-2.5 and a content of free glycols with M n ⁇ 150 g / mol of ⁇ 6% by weight, a polyethylene glycol with an average molecular weight of ⁇ 700 g / mol and an average functionality of ⁇ 2.5 and certain polyethylene glycol alkyl phenyl ethers, as well as processes for the production of PUR / PIR rigid foams using this polyol formulation and the PUR / PIR rigid foams thus produced.
- PUR / PIR rigid foams flame-retardant polyurethane / polyisocyanurate rigid foams
- PUR / PIR rigid foams refers to those rigid foams that have both urethane and isocyanurate structures.
- PUR / PIR foams are also flammable, whereby the large surface area per unit of mass in rigid foams intensifies this behavior.
- PUR / PIR rigid foams are often used as insulation materials, for example as insulation in the construction industry. In many areas of application of PUR / PIR rigid foams, fire protection equipment through added flame retardants is therefore necessary.
- the fire properties of the polymer backbone can be controlled within certain limits by the selection and composition of the monomers.
- the presence of isocyanurate structures has a positive effect on fire behavior.
- the use of high molecular weight polyester building blocks, as in US 2013/184366 A and US 2014/364528 A, is also said to lead to an increase in flame retardancy, but also often hampers the trimerization of isocyanate to isocyanurate structures via a premature increase in the glass transition temperature, which in turn gives the foam strength.
- a concept for lowering the viscosity could lie in the addition of polyether polyols.
- PEG polyethylene glycol
- the object of the present invention is therefore to provide a polyol formulation A containing a high molecular weight polyester polyol for the production of rigid PUR / PIR foams, the rigid PUR / PIR foams having good flame retardancy and good mechanical properties.
- US 2012/0202903 A describes the use of alkyl ethoxylate alcohols with an average HLB value between 10 and 15 as compatibility promoters for polyol formulations which contain high proportions of water and are used for the production of water-driven polyurethane spray foams.
- Polyester polyol component which has an OH number of 190-310 mg KOH / g, consisting of
- Al -2 optionally other polyester polyols which do not fall under the definition of Al-1,
- A3 further isocyanate-reactive components
- RI, R2, R3, R4 H, Cl-C4-alkyl
- R5, R6, R7 H, CI- to C8-alkyl, aryl
- n 7-20, preferably 10-18, particularly preferably 11-15
- RI, R3 H, C (CH 3) 2 CR4R5R6
- R2 C (CH 3) 2 CR4R5R6
- R4, R5 H or CH 3
- R6 C2 to C5 alkyl, aryl
- n 3-8 where the compounds A4 have a molecular weight of less than 1.5 kg / mol and a content of 25-70% ethylene oxide, preferably 40-60% ethylene oxide, and
- the invention also relates to a method for producing PUR / PIR rigid foams by converting a reaction mixture containing them the polyol formulation A, a polyisocyanate component B, and a blowing agent C, optionally in the presence of a catalytically active component D, the production taking place with an index of 150 to 600, preferably 240-400.
- component A according to the invention it was possible to provide a formulation which contains high molecular weight polyester building blocks and yet has a low viscosity and can be processed into rigid PUR / PIR foams with a good cell structure.
- the polyesters produced with component A according to the invention also have good flame retardancy and improved mechanical properties, such as tensile strength, elongation at break, toughness and open-cell structure of the rigid PUR / PIR foams.
- the polyester polyol component Al-1 is a polyester polyol with an OH number ⁇ 240 mg KOH / g, preferably ⁇ 200 mg KOH / g, a functionality of 1.5-2.5 and a content of free glycols with a molar mass ⁇ 150 g / mol of less than 6% by weight, based on the total mass of Al-1. Due to its molecular weight, such a polyol component usually has a high viscosity for PUR / PIR rigid foam applications, in particular a viscosity of> 5 Pa * s.
- the proportion of polyester polyols Al-1 in the polyester polyol component Al is preferably> 60% by weight, in particular> 80% by weight and very particularly preferably> 90% by weight.
- the mass ratio of Al-1 to Al-2 is therefore preferably at least 6: 1, in particular at least 8: 1.
- Polyester polyols with a low content of free glycols are known per se and their production and use in CFC-based PUR / PIR formulations is disclosed, for example, in US Pat. No. 5,109,301.
- the polyester polyols of component Al can be, for example, polycondensates of polyhydric alcohols, preferably diols, with 2 to 12 carbon atoms, preferably with 2 to 6 carbon atoms, and polycarboxylic acids, such as di-, tri- or even tetracarboxylic acids, or hydroxycarboxylic acids or lactones, preferably aromatic dicarboxylic acids or mixtures of aromatic and aliphatic dicarboxylic acids are used.
- the corresponding polycarboxylic anhydrides or corresponding Polycarboxylic acid esters of lower alcohols can be used to produce the polyester. Phthalic anhydride, terephthalic acid and / or isophthalic acid are preferably used.
- carboxylic acids are: succinic acid, glutaric acid, adipic acid, suberic acid, azelaic acid, sebacic acid, decanedicarboxylic acid, tetrahydrophthalic acid, hexahydrophthalic acid, cyclohexanedicarboxylic acid, tetrachlorophthalic acid, itaconic acid, malonic acid, itaconic acid, malonic acid, 2,2-dimethyl-succinic acid, 3,3-methyl-succinic acid, succinic acid , Dodecanedioic acid, endomethylenetetrahydrophthalic acid, dimer fatty acid, trimer fatty acid, citric acid, trimellitic acid, benzoic acid, trimellitic acid, maleic acid, fumaric acid, phthalic acid, isophthalic acid and terephthalic acid.
- carboxylic acids for example dimethyl terephthalate.
- the carboxylic acids can be used either individually or as a mixture.
- the carboxylic acids used are preferably adipic acid, sebacic acid and / or succinic acid, particularly preferably adipic acid and / or succinic acid.
- Hydroxycarboxylic acids which can also be used as reactants in the production of a polyester polyol with terminal hydroxyl groups are, for example, hydroxycaproic acid, hydroxybutyric acid, hydroxydecanoic acid, hydroxystearic acid and the like.
- Suitable lactones include caprolactone, propiolactone, butyrolactone and homologues.
- Bio-based starting materials and / or their derivatives are particularly suitable for the production of polyester polyols, such as B. castor oil, polyhydroxy fatty acids, ricinoleic acid, hydroxyl-modified oils, grape seed oil, black caraway seed oil, pumpkin seed oil, borage seed oil, soybean oil, wheat seed oil, rapeseed oil, sunflower seed oil, peanut oil, apricot kernel oil, avicorn oil, hempseed oil, sandduck oil, almond oil, hempseed oil Hazelnut oil, primrose oil, wild rose oil, safflower oil, walnut oil, fatty acids, hydroxyl-modified and epoxidized fatty acids and fatty acid esters, for example based on myristoleic acid, palmitoleic acid, oleic acid, vaccenic acid, petroselic acid, gadoleic acid, erucic acid, nervonic acid, monoleic acid, arachidonic acid and gamma acid , Timnodonic acid,
- suitable diols are ethylene glycol, butylene glycol, diethylene glycol, triethylene glycol, polyalkylene glycols such as polyethylene glycol, furthermore 1,2-propanediol, 1,3-propanediol, cyclohexanedimethanol, 1,3-butanediol, 1,4-butanediol, 1,6-hexanediol and Isomers, neopentyl glycol or neopentyl glycol hydroxypivalate.
- polyalkylene glycols such as polyethylene glycol, furthermore 1,2-propanediol, 1,3-propanediol, cyclohexanedimethanol, 1,3-butanediol, 1,4-butanediol, 1,6-hexanediol and Isomers, neopentyl glycol or neopentyl glycol hydroxypivalate.
- Ethylene glycol diethylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol or mixtures of at least two of the diols mentioned, in particular mixtures of 1,4-butanediol, 1,5-pentanediol and 1,6-hexanediol .
- polyols such as trimethylolpropane, glycerol, erythritol, pentaerythritol, trimethylolbenzene or trishydroxyethyl isocyanurate can also be used, glycerol and trimethylolpropane being preferred.
- Monohydric alkanols can also be used.
- polyester-polyols which have polyether structures can also be used in the polyester polyol component. These are often referred to as “polyetherester polyols”.
- Polyetherester polyols that can be used are those compounds containing ether groups, ester groups and OH groups.
- Organic dicarboxylic acids with up to 12 carbon atoms are suitable for the production of the polyetherester polyols, preferably aliphatic dicarboxylic acids with 4 to 6 carbon atoms or aromatic dicarboxylic acids, which are used individually or in a mixture.
- Examples are suberic acid, azelaic acid, decanedicarboxylic acid, furandicarboxylic acid, maleic acid, malonic acid, phthalic acid, pimelic acid and sebacic acid, and in particular glutaric acid, fumaric acid, succinic acid, adipic acid, phthalic acid, terephthalic acid and isoterephthalic acid.
- derivatives of these acids for example their anhydrides and their esters and half esters with low molecular weight, monofunctional alcohols having 1 to 4 carbon atoms, can also be used.
- bio-based starting materials mentioned above in particular fatty acids or fatty acid derivatives (oleic acid, soybean oil, etc.) is also possible and can have advantages, e.g. with regard to the storage stability of the polyol formulation, dimensional stability, fire behavior and compressive strength of the foams.
- Polyether polyols obtained by alkoxylating starter molecules such as polyhydric alcohols are used as a further component for the production of the polyether ester polyols.
- the starter molecules are at least difunctional, but can optionally also contain proportions of higher-functional, in particular trifunctional, starter molecules.
- Starter molecules are, for example, diols such as 1,2-ethanediol, 1,3-propanediol, 1,2-propanediol, 1,4-butanediol, 1,5-pentenediol, 1,5-pentanediol, neopentyl glycol, 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,10-decanediol, 2-methyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 2-butyl-2-ethyl-l, 3-propanediol, 2-butene-l, 4-diol and 2-butyne-l, 4-diol, ether diols such as diethylene glycol, triethylene glycol, tetraethylene glycol
- compounds with more than 2 Zerewitinoff-active hydrogens especially with number-average functionalities from 3 to 8, in particular from 3 to 6, for example 1,1,1-trimethylolpropane, triethanolamine, can also be used as starter molecules for the production of the polyethers , Glycerine, sorbitan and pentaerythritol as well as polyethylene oxide polyols started on triols or tetraoene.
- Polyetherester polyols can also be prepared by alkoxylation, in particular ethoxylation and / or propoxylation, of reaction products obtained by reacting organic dicarboxylic acids and their derivatives and components with Zerewitinoff-active hydrogens, especially diols and polyols.
- organic dicarboxylic acids for example, their anhydrides can be used, such as phthalic anhydride.
- Polyethylene glycols are used as component A2, i. H. Reaction products of a low molecular weight 2-3-functional hydroxy-functional starter molecule with ethylene oxide are used, the ethylene oxide making up> 80% of the molecular weight.
- the starter molecules are in particular water, ethylene glycol, diethylene glycol, propylene glycol, glycerol and / or trimethylolpropane.
- the preparation of such polyethylene glycols is known to those skilled in the art and many of these substances are commercially available.
- Suitable polyethylene glycols are preferably liquid at 298 K and in particular have molecular weights of ⁇ 700 g / mol and an average functionality of ⁇ 2.5, particularly preferably they have an average molecular weight of 200-600 g / mol and very particularly preferably an average functionality of ⁇ 2.12.
- the further isocyanate-reactive components A3 are, for example, polyols, such as polyether polyols, polycarbonate polyols and polyether-polycarbonate polyols, which do not fall under the definition of components A1 and A2.
- long-chain polyols in particular polyether polyols, can improve the flowability of the reaction mixture and the emulsifiability of the blowing agent-containing formulation.
- these can, for example, enable the continuous production of elements with flexible or rigid cover layers.
- long-chain polyols have functionalities of> 1.2 to ⁇ 3.5 and have a hydroxyl number between 10 and 100 mg KOH / g, preferably between 20 and 50 mg KOH / g, and have more than 70 mol%, preferably more than 80 mol%, in particular more than 90 mol% primary OH groups.
- the long-chain polyols are preferably polyether polyols with functionalities of> 1.2 to ⁇ 3.5 and a hydroxyl number between 10 and 100 mg KOH / g.
- medium-chain polyols in particular polyether polyols
- low molecular weight isocyanate-reactive compounds can improve the adhesion and dimensional stability of the resulting foam.
- these medium-chain polyols can enable the continuous production of elements with flexible or rigid cover layers.
- the medium-chain polyols, which are in particular polyether polyols, have functionalities from> 2 to ⁇ 6 and have a hydroxyl number between 300 and 700 mg KOH / g.
- polyether polyols used are the polyether polyols known to the person skilled in the art and which can be used in polyurethane synthesis and have the features mentioned.
- Polyether polyols which can be used are, for example, polytetramethylene glycol polyethers, such as are obtainable by polymerizing tetrahydrofuran by means of cationic ring opening.
- Polyether polyols are obtained by production methods known to those skilled in the art, such as, for example, by anionic polymerization of one or more alkylene oxides having 2 to 4 carbon atoms with alkali hydroxides such as sodium or potassium hydroxide, alkali alcoholates such as sodium methylate, sodium or potassium ethylate or potassium isopropylate, or aminic alkoxylation catalysts , such as dimethylethanolamine (DMEOA), imidazole and / or imidazole derivatives, using at least one starter molecule which contains 2 to 8, preferably 2 to 6, reactive hydrogen atoms bonded.
- alkali hydroxides such as sodium or potassium hydroxide
- alkali alcoholates such as sodium methylate, sodium or potassium ethylate or potassium isopropylate
- aminic alkoxylation catalysts such as dimethylethanolamine (DMEOA), imidazole and / or imidazole derivatives, using at least one starter molecule which contains 2 to 8, preferably 2 to 6,
- Suitable alkylene oxides are, for example, tetrahydrofuran, 1,3-propylene oxide, 1,2- or 2,3-butylene oxide, styrene oxide and preferably ethylene oxide and 1,2-propylene oxide.
- the alkylene oxides can be used individually, alternately in succession or as mixtures.
- Preferred alkylene oxides are propylene oxide and ethylene oxide, and ethylene oxide is particularly preferred.
- the alkylene oxides can be converted in combination with CO2.
- starter molecules for example: water, organic dicarboxylic acids such as succinic acid, adipic acid, phthalic acid and terephthalic acid, aliphatic and aromatic, optionally N-mono-, N, N- and N, N'-dialkyl-substituted diamines with 1 to 4 carbon atoms in the alkyl radical such as optionally mono- and dialkyl-substituted ethylenediamine, diethylenetriamine, triethylenetetramine, 1,3-propylenediamine, 1,3- or 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5- and 1,6-hexamethylenediamine, phenylenediamines, 2,3-, 2,4- and 2,6-tolylenediamine, and 2,2'-, 2,4'- and 4,4'-diaminodiphenylmethane.
- organic dicarboxylic acids such as succinic acid, adipic acid, phthalic acid
- two or polyhydric alcohols such as ethanediol, 1,2- and 1,3-propanediol, diethylene glycol, dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, triethanolamine, bisphenols, glycerol, trimethylolpropane, pentaerythritol, sorbitol and Sucrose.
- Polycarbonate polyols which can be used are polycarbonates containing hydroxyl groups, for example polycarbonate diols. These arise in the reaction of carbonic acid derivatives, such as diphenyl carbonate, dimethyl carbonate or phosgene, with polyols, preferably diols.
- diols examples include ethylene glycol, 1,2- and 1,3-propanediol, 1,3- and 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol, neopentyl glycol, 1,4-bishydroxymethylcyclohexane, 2- Methyl-1,3-propanediol, 2,2,4-trimethylpentanediol-1,3, dipropylene glycol, polypropylene glycols, dibutylene glycol, polybutylene glycols, bisphenols and lactone-modified diols of the type mentioned above.
- polyether-polycarbonate diols which are obtainable, for example, by copolymerizing alkylene oxides, such as propylene oxide, with CO 2.
- polyester and polyether polyols from suitable polymer recyclates via glycolysis.
- Suitable polyether-polycarbonate polyols and their production are described, for example, in EP 2 910 585 A1, [0024] - [0041]. Examples of polycarbonate polyols and their production can be found, inter alia, in EP 1 359 177 A1.
- the production of suitable polyetherester polyols is described in WO 2010/043624 A and in EP 1 923 417 A, among others.
- low molecular weight isocyanate-reactive compounds are used to produce the PUR / PIR rigid foams, e.g. in the function of chain lengthening agents and / or crosslinking agents, these are expediently used in an amount of a maximum of 6% by weight, based on the total weight of the polyol formulation A. for use.
- Compounds which, due to their structure, fall under the definition of component A3 as well as under one of the definitions of the above-described polyol compounds Al or A2 are counted in quantitative terms as Al or A2 and not with component A3.
- the mixture of the polyols A1 and A2 preferably has a viscosity of ⁇ 4 Pa * s, in particular a viscosity of 2-4 Pa * s.
- the mixture of the polyols Al and A2 preferably has an OH number of ⁇ 260 mg KOH / g, in particular ⁇ 230 mg KOH / g
- the mass ratio of polyester polyols A1 to polyethylene glycols A2 in the polyol formulation is preferably 2-10.
- the compounds A4 are one or more compounds selected from the group consisting of
- RI, R2, R3, R4 H, Cl-C4-alkyl
- R5, R6, R7 H, CI- to C8-alkyl, aryl
- n 7-20, preferably 10-18, particularly preferably 11-15
- RI, R3 H, C (CH 3) 2 CR4R5R6
- R2 C (CH 3) 2 CR4R5R6
- R4, R5 H or CH 3
- R6 C2 to C5 alkyl, aryl
- n 3-8 where the compounds A4 have a molecular weight of less than 1.5 kg / mol and a content of 25-70% ethylene oxide, preferably 40-60% ethylene oxide.
- the compounds A4 having a molecular weight of less than 1.5 kg / mol and a content of 25-70% ethylene oxide, preferably 40-60% ethylene oxide.
- Preferred compounds A4 are shown in Table 1 and are those with structure IV (falls under the definition of compounds A4-2), structure V (falls under the definition of compounds A4-1) and structure VI (falls under the definition of compounds A4-3).
- component A5 In addition to the compounds A4, one or more further additives can optionally also be used as component A5.
- component A5 are surface-active substances, foam stabilizers, cell regulators, flame retardants, fillers, dyes, pigments, hydrolysis inhibitors, fungistatic and bacteriostatic substances.
- Suitable surface-active substances are, for example, compounds which serve to support the homogenization of the starting materials and, if necessary, are also suitable for regulating the cell structure of the plastics.
- emulsifiers such as the sodium salts of castor oil sulfates or of fatty acids and salts of fatty acids with amines, e.g. oleic diethylamine, stearic acid diethanolamine, ricinolate diethanolamine, salts of sulfonic acids, e.g.
- Foam stabilizers such as siloxane oxalkylene copolymers and other organopolysiloxanes, ethoxylated alkylphenols different from A4, ethoxylated fatty alcohols, paraffin oils, castor oil or ricinoleic acid esters, Turkish red oil and peanut oil, and cell regulators such as paraffins, fatty alcohols and dimethylpolysiloxanes.
- oligomeric acrylates with polyoxyalkylene and fluoroalkane radicals as side groups are also suitable for improving the emulsifying effect, the cell structure and / or stabilizing the foam.
- Emulsifiers which, in terms of their structure, fall under the definition of component A4 are also counted in terms of quantity as component A4 and not as component A5.
- inorganic fillers such as silicate minerals, for example sheet silicates such as. B.
- metal oxides such as kaolin, aluminum oxides, titanium oxides and iron oxides, metal salts such as chalk, huntite, barite and inorganic pigments such as magnetite, goethite, cadmium sulfide and zinc sulfide, as well as glass, among other things, as well as natural and synthetic fibrous minerals such as wollastonite, metal and especially glass fibers of various catches, which can optionally be sized.
- organic fillers are: carbon, melamine, rosin, cyclopentadienyl resins and graft polymers and cellulose fibers, polyamide, polyacrylonitrile, polyurethane, polyester fibers based on aromatic and / or aliphatic dicarboxylic acid esters and carbon fibers.
- a flame retardant A5 is also preferably used to produce the PUR / PIR rigid foams.
- Flame retardants are known in principle to those skilled in the art and are described, for example, in “Kunststoffhandbuch”, Volume 7 “Polyurethane”, Chapter 6.1. These can be, for example, halogenated polyesters and polyols, bromine- and chlorine-containing paraffins or phosphorus compounds, such as, for example, the esters of orthophosphoric acid and metaphosphoric acid, which can also contain halogen. Liquid flame retardants at 298 K are preferred.
- Examples are triethyl phosphate, diethyl ethane phosphonate, cresyl diphenyl phosphate and other triaryl phosphates, dimethyl propane phosphonate, hydroxymethyl phosphonates and tris ( ⁇ -chloroisopropyl) phosphate.
- Flame retardants selected from the group consisting of tris (chloro-2-propyl) phosphate (TCPP) and triethyl phosphate (TEP) and mixtures thereof are particularly preferred.
- Flame retardants are preferably used in an amount of 1 to 30% by weight, particularly preferably 5 to 30% by weight, based on the total weight of the isocyanate-reactive composition A) so that a phosphorus content in the foam of 0.4-1, 3 wt .-% is achieved.
- a phosphorus content in the foam of 0.4-1, 3 wt .-% is achieved.
- the presence of triethyl phosphate (TEP) in the flame retardant mixture or as the sole flame retardant is particularly advantageous.
- the polyol formulation furthermore contains A6 a maximum of 2% by weight, preferably a maximum of 2.0% by weight, particularly preferably a maximum of 1.2% by weight of water, based on the total mass of the polyol formulation A.
- the number average molar mass M n (also: molecular weight) is determined in the context of this invention by gel permeation chromatography according to DIN 55672-1 (March 2007).
- the OH number (also: hydroxyl number) indicates the OH number in the case of an individually added polyol.
- Information on the OH number for mixtures relates to the number-average OH number of the mixture, calculated from the OH numbers of the individual components in their respective molar proportions.
- the OH number indicates the amount of potassium hydroxide in milligrams, which is equivalent to the amount of acetic acid bound during acetylation of one gram of substance.
- the OH number is determined in accordance with the DIN 53240-1 standard (June 2013).
- “functionality” denotes the theoretical average functionality calculated from the known starting materials and their proportions (Number of functions that are reactive towards isocyanates or towards polyols in the molecule or averaged over the respective mixture of molecules).
- the equivalent weight indicates the ratio of the number average molecular mass and the functionality of the isocyanate-reactive component.
- the equivalent weight data for mixtures are calculated from equivalent weights of the individual components in their respective molar proportions and relate to the number-average equivalent weight of the mixture.
- blowing agent C can be used as blowing agent C, such as, for example, low-boiling organic compounds such as hydrocarbons, halogenated hydrocarbons, ethers, ketones, carboxylic acid esters or carbonic acid esters.
- Organic compounds which are inert to isocyanate component B and have boiling points below 100 ° C., preferably below 50 ° C. at atmospheric pressure are particularly suitable. These boiling points have the advantage that the organic compounds evaporate under the influence of the exothermic polyaddition reaction.
- Examples of such, preferably used organic compounds are alkanes, such as heptane, hexane, n- and iso-pentane, preferably technical mixtures of n- and iso-pentanes, n- and iso-butane and propane, cycloalkanes, such as. B. cyclopentane and / or cyclohexane, ethers, such as. B. furan, dimethyl ether and diethyl ether, ketones, such as. B. acetone and methyl ethyl ketone, carboxylic acid alkyl esters, such as. B.
- alkanes such as heptane, hexane, n- and iso-pentane, preferably technical mixtures of n- and iso-pentanes, n- and iso-butane and propane
- cycloalkanes such as. B. cyclopentane and / or cyclo
- halogenated hydrocarbons such as. B. methylene chloride, difluoromethane, trifluoromethane, difluoroethane, tetrafluoroethane, and heptafluoropropane. It is preferred not to use propellants that are known to have a harmful effect on the earth's ozone layer.
- propellants that are known to have a harmful effect on the earth's ozone layer.
- the use of (hydro) fluorinated olefins such as. B. HFO 1233zd (E) (Trans-l-chloro-3,3,3-trifluoro-l-propene) or HFO 1336mzz (Z) (cis-1, 1,1, 4,4,4-
- Hexafluoro-2-butene or additives such as FA 188 from 3M (l, l, l, 2,3,4,5,5,5-nonafluoro-4- (trifluoromethyl) pent-2-en). Mixtures of two or more of the organic compounds mentioned can also be used.
- the organic compounds can also be used in the form of an emulsion composed of small droplets.
- blowing agents such as, for example, water, carboxylic acid and mixtures thereof, can also be used as blowing agent C. These react with isocyanate groups to form the propellant gas, as in the case of water, for example, carbon dioxide is formed and in the case of z.
- formic acid produces carbon dioxide and carbon monoxide.
- At least one compound selected from the group consisting of formic acid, acetic acid, oxalic acid and ricinoleic acid is preferably used as the carboxylic acid.
- Water is particularly preferably used as the chemical blowing agent.
- blowing agents Preferably, no halogenated hydrocarbons are used as blowing agents. At least one compound selected from the group consisting of physical and chemical blowing agents is used as blowing agent C. Only physical blowing agent is preferably used. In a preferred embodiment, the blowing agents C used have an average global warming potential (GWP) of ⁇ 120, preferably a GWP of ⁇ 20.
- GWP global warming potential
- catalyst D for the production of PUR / PIR rigid foams compounds are used which accelerate the reaction of the reactive hydrogen atoms, in particular compounds containing hydroxyl groups, with the isocyanate component B, such as. B. tertiary amines or metal salts.
- the catalyst components can be metered into the reaction mixture or completely or partially in the polyol formulation A.
- tertiary amines such as triethylamine, tributylamine, dimethylbenzylamine, dicyclohexylmethylamine, dimethylcyclohexylamine, N, N, N ', N'-
- Tetramethyldiaminodiethylether bis (dimethylaminopropyl) urea, N-methyl- or N-ethylmorpholine, N-cyclohexylmorpholine, N, N, N ', N'-tetramethylethylenediamine, N, N, N, N, N-tetramethylbutanediamine, N, N, N, N-Tetramethylhexanediamine-1,6, pentamethyldiethylenetriamine, bis [2- (dimethylamino) ethyl] ether, dimethylpiperazine, N-dimethylaminoethylpiperidine, 1,2-dimethylimidazole, 1-azabicyclo- (3,3,0) -octane , 1,4-Diaza-bi-cyclo- (2,2,2) -octane (Dabco) and alkanolamine compounds such as triethanolamine, triisopropanolamine, N-methyl- and N
- the transition metal salts used are, for example, zinc, bismuth, iron, lead or, preferably, tin salts.
- transition metal salts used are iron (II) chloride, zinc chloride, lead octoate, tin dioctoate, tin diethylhexoate and dibutyltin dilaurate.
- the transition metal salt is particularly preferably selected from at least one compound from the group consisting of tin dioctoate, tin diethylhexoate and dibutyltin dilaurate.
- alkali metal salts are alkali alcoholates, such as. B.
- alkali metal carboxylates such as. B. potassium acetate
- alkali metal salts of long-chain fatty acids with 10 to 20 carbon atoms and optionally pendant OH groups are preferably used as the alkali metal salt.
- amidines such as. B. 2,3-dimethyl-3,4,5,6-tetrahydropyrimidine
- tetraalkylammonium hydroxides such as. B. tetramethylammonium hydroxide
- alkali hydroxides such as. B. sodium hydroxide
- tetraalkylammonium or phosphonium carboxylates tetraalkylammonium or phosphonium carboxylates.
- Mannich bases and salts of phenols are also suitable Catalysts. It is also possible to run the reactions without catalysis. In this case, the catalytic activity of polyols started with amines is used.
- Catalysts forming isocyanurate groups for example ammonium ions or alkali metal salts, especially ammonium or alkali metal carboxylates, alone or in combination with tertiary amines.
- the isocyanurate formation leads to particularly flame-retardant PIR rigid foams.
- the catalyst components can be metered into the reaction mixture or completely or partially in the polyol formulation A.
- the reactivity of the reaction mixture is usually adapted to the needs by means of the catalyst component.
- the production of thin plates requires a reaction mixture with a higher reactivity than the production of thicker plates.
- Typical parameters are the start time and the setting time as a measure of the time at which the reaction mixture begins to react and for the point in time at which a sufficiently stable polymer network is formed.
- the above-mentioned catalysts can be used alone or in combination with one another.
- Suitable isocyanate component B are, for. B. polyisocyanates, d. H. Isocyanates with an NCO functionality of at least 2 are possible. Examples of such suitable polyisocyanates are
- Isocyanate component B is preferably selected from at least one compound from the group consisting of MDI, polymeric MDI and TDI.
- modified diisocyanates with uretdione, isocyanurate, urethane, carbodiimide, uretonimine, allophanate, biuret, amide, iminooxadiazinedione and / or oxadiazinetrione structure, and unmodified polyisocyanate with more than 2 NCO groups per molecule such as, for example, 4-isocyanatomethyl-1,8-octane diisocyanate (nonane triisocyanate) or triphenylmethane-4,4 ', 4 "-triisocyanate, can also be used.
- NCO prepolymers can also be used as isocyanate component B.
- the prepolymers can be prepared by reacting one or more polyisocyanates with one or more polyols, corresponding to the polyols described under the isocyanate-reactive components A1.
- polymeric MDI types in rigid foam are particularly preferred over monomeric isocyanates.
- the NCO content of the polyisocyanate component A) is preferably from> 29.0% by weight to ⁇ 33.0% by weight, and preferably has a viscosity at 25 ° C. of> 80 mPas to ⁇ 2900 mPas, particularly preferably of> 95 mPas to ⁇ 850 mPas at 25 ° C.
- the NCO value (also: NCO content, isocyanate content) is determined using EN ISO 11909: 2007. Unless otherwise stated, the values are at 25 ° C.
- the viscosity information is the dynamic viscosity at 25 ° C (unless otherwise stated), determined using DIN EN ISO 3219: 1994-10 "Plastics - Polymers / Resins in a liquid, emulsified or dispersed state".
- the isocyanate index (also called index or isocyanate index) is understood to mean the quotient of the amount of substance [mol] of isocyanate groups actually used and the amount of substance [mol] of isocyanate-reactive groups actually used, multiplied by 100:
- the index in the reaction mixture is 150 to 600, preferably 240 to 400.
- This index is particularly preferably in a range from 240 to 400 in which a high proportion of polyisocyanurates (PIR) is present (the foam is called PIR foam or PUR / PIR foam) and leads to a higher flame retardancy of the PUR / PIR foam itself.
- PIR polyisocyanurates
- the NCO value (also: NCO content, isocyanate content) is determined using EN ISO 11909 (May 2007). Unless otherwise stated, the values are at 25 ° C.
- the invention also relates to a PUR / PIR foam which is produced by the method according to the invention.
- a reaction mixture is produced from components AD by mixing them, which leads to the PUR / PIR foam. Production generally takes place by mixing all the components using conventional high or low pressure mixing heads.
- the PUR / PIR rigid foams according to the invention are produced according to the one-step process known to those skilled in the art, in which the reaction components are reacted with one another continuously or discontinuously and then either manually or with the aid of mechanical devices in the high-pressure or low-pressure process after discharge onto a conveyor belt or be brought into suitable molds for curing.
- the PUR / PIR rigid foams according to the invention are preferably used for the production of composite elements.
- the foaming usually takes place here in a continuous or discontinuous manner against at least one cover layer.
- the invention accordingly also relates to the use of a rigid PUR / PIR foam according to the invention as an insulation foam and / or as an adhesion promoter in
- Composite elements comprising a layer comprising a PUR / PIR rigid foam according to the invention and at least one cover layer.
- the cover layer is at least partially contacted by a layer comprising the PUR / PIR rigid foam according to the invention.
- Composite elements of the type of interest here are also used as sandwich
- cover layers can form, for example, metal sheets, plastic sheets or chipboard panels up to 7 mm thick, depending on the intended use of the composite elements.
- the one or two cover layers can each be a flexible cover layer, for example an aluminum foil, paper, multi-layer cover layers made of paper and aluminum or mineral fleece, and / or a rigid cover layer, for example made of sheet steel or chipboard .
- OH ethylene oxide ratio of 1: 4.
- the OH number is 250 mg KOH / g, the viscosity is 0.37 Pa * s at 25 ° C.
- the flame spread of the PUR / PIR rigid foams was measured by applying flame to the edges with the small burner test according to DIN 4102-1 (March 1998) on a sample measuring 18 cm x 9 cm x 2 cm. The value given is for the maximum vertical flame height in cm.
- the measurement of the mean heat release rate and its maximum (MARHE), the CO yield and the specific light absorption area SEA as a measure of the smoke gas density was measured according to ISO standard 5660-1: 1990 with a “cone calorimeter”.
- the test specimens measuring 1 dm x 1 dm x 0.3 dm are irradiated for 20 minutes by a heat radiator with 50 kW / m2.
- the determined CO yield indicates the average value from two measurements.
- OH number (hydroxyl number) was determined in accordance with DIN 53240-1 (June 2013).
- the acid number was determined in accordance with DIN EN ISO 2114 (January 2006).
- the viscosity was determined on a Physica MCR 501 rheometer from Anton Paar. A cone-plate configuration with a distance of 1 mm was selected (DCP25 measuring system). The polyol (0.1 g) was applied to the rheometer plate and subjected to a shear of 0.01 to 1000 1 / s at 25 ° C. and the viscosity was measured every 10 s for 10 minutes. The viscosity given is averaged over all measuring points.
- the open-cell content of the PUR / PIR rigid foams was measured with an Accupyk-1330 device on test specimens measuring 5 cm x 3 cm x 3 cm in accordance with DIN EN ISO 4590 (March 2003).
- the cell structure of the foam was determined by visual inspection.
- the bulk density was measured in accordance with DIN EN ISO 845 (October 2009).
- the respective polyol formulations were obtained from a basic polyol component containing
- the base polyol component also already contains 5 parts by weight of catalyst D-a.
- the other polyol components according to Table 2 and n-pentane as blowing agent were mixed in a paper cup in addition to the basic polyol component.
- the isocyanate-reactive mixture obtained was mixed with the isocyanate and the reaction mixture was poured into a paper form (3 ⁇ 3 ⁇ 1 dm 3 ) and reacted completely therein.
- the exact formulations of the individual experiments are given in the tables below, as are the results of the physical measurements on the samples obtained.
- Examples 3-5 according to the invention are superior to comparative examples 1 *, 2 *, 6 * and 7 * not according to the invention, inter alia in the combination of the properties of good flame retardancy and cell structure.
- viscosity of polyol mixture proportion of Al-la in the mixture x ln (viscosity Al-la) + proportion of A2-a in the mixture x ln (viscosity A2-a) + proportion of A2-b in the mixture x is viscosity A2 -b).
- a viscosity> 5 Pa * s is unfavorable during processing.
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Abstract
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JP2869695B2 (en) * | 1993-12-08 | 1999-03-10 | ニチアス株式会社 | Manufacturing method of lightweight organic foam |
JP3197513B2 (en) * | 1997-08-12 | 2001-08-13 | 東邦理化株式会社 | Flame retardant polyester polyol composition |
DE10219028A1 (en) | 2002-04-29 | 2003-11-06 | Bayer Ag | Production and use of high molecular weight aliphatic polycarbonates |
JP2004059641A (en) * | 2002-07-25 | 2004-02-26 | Toyo Tire & Rubber Co Ltd | Polyol composition for rigid polyurethane foam and method for manufacturing rigid polyurethane foam |
US9284401B2 (en) | 2006-11-13 | 2016-03-15 | Bayer Materialscience Llc | Process for the preparation of polyether-ester polyols |
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US9290604B2 (en) * | 2010-08-13 | 2016-03-22 | Air Products And Chemicals, Inc. | NPE-free emulsifiers for water-blown polyurethane spray foam |
CN103228701B (en) * | 2010-09-29 | 2016-01-20 | 陶氏环球技术有限责任公司 | High functionality aromatic polyester, comprise they polyol blends and be derived from their products obtained therefrom |
CN103339164B (en) * | 2010-12-21 | 2016-08-17 | 陶氏环球技术有限责任公司 | Polyol Formulation for the low temperature epidermis solidification that hard foamed poly urethane improves |
CN103289039A (en) * | 2012-02-28 | 2013-09-11 | 拜耳材料科技(中国)有限公司 | Rigid polyurethane foam polyether composition and rigid polyurethane foam prepared from same |
EP2910585B1 (en) | 2014-02-21 | 2018-07-04 | Covestro Deutschland AG | Ballast layer and method for production of ballast layers |
-
2019
- 2019-07-12 EP EP19185931.3A patent/EP3763776A1/en not_active Ceased
-
2020
- 2020-07-06 CN CN202080050824.3A patent/CN114080410A/en active Pending
- 2020-07-06 EP EP20737011.5A patent/EP3997161A1/en not_active Withdrawn
- 2020-07-06 WO PCT/EP2020/069002 patent/WO2021008921A1/en unknown
- 2020-07-06 CA CA3140032A patent/CA3140032A1/en active Pending
- 2020-07-06 US US17/618,135 patent/US20220332881A1/en active Pending
Also Published As
Publication number | Publication date |
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WO2021008921A1 (en) | 2021-01-21 |
CN114080410A (en) | 2022-02-22 |
EP3763776A1 (en) | 2021-01-13 |
CA3140032A1 (en) | 2021-01-21 |
US20220332881A1 (en) | 2022-10-20 |
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