NZ624632B2 - Expansion joint comprising a hybrid polyurea-polyurethane header composition - Google Patents
Expansion joint comprising a hybrid polyurea-polyurethane header composition Download PDFInfo
- Publication number
- NZ624632B2 NZ624632B2 NZ624632A NZ62463212A NZ624632B2 NZ 624632 B2 NZ624632 B2 NZ 624632B2 NZ 624632 A NZ624632 A NZ 624632A NZ 62463212 A NZ62463212 A NZ 62463212A NZ 624632 B2 NZ624632 B2 NZ 624632B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- header
- expansion joint
- polyurethane
- composition
- polyurea
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 227
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 100
- 239000004814 polyurethane Substances 0.000 title claims abstract description 100
- 239000000463 material Substances 0.000 claims description 135
- 150000001412 amines Chemical class 0.000 claims description 65
- -1 aromatic isocyanates Chemical class 0.000 claims description 58
- 229920005862 polyol Polymers 0.000 claims description 42
- 150000003077 polyols Chemical class 0.000 claims description 42
- IQPQWNKOIGAROB-UHFFFAOYSA-N [N-]=C=O Chemical compound [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 35
- 238000003860 storage Methods 0.000 claims description 32
- 239000003054 catalyst Substances 0.000 claims description 25
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 21
- 239000000194 fatty acid Substances 0.000 claims description 21
- 150000002500 ions Chemical class 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000000654 additive Substances 0.000 claims description 14
- 230000003068 static Effects 0.000 claims description 14
- 229920002396 Polyurea Polymers 0.000 claims description 13
- 239000004359 castor oil Substances 0.000 claims description 12
- 235000019438 castor oil Nutrition 0.000 claims description 12
- 230000000994 depressed Effects 0.000 claims description 12
- 239000000049 pigment Substances 0.000 claims description 12
- 125000005442 diisocyanate group Chemical group 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 230000002000 scavenging Effects 0.000 claims description 11
- 230000000996 additive Effects 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 9
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical class CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims description 7
- UPMLOUAZCHDJJD-UHFFFAOYSA-N Diphenylmethane p,p'-diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- JIABEENURMZTTI-UHFFFAOYSA-N 1-isocyanato-2-[(2-isocyanatophenyl)methyl]benzene Chemical class O=C=NC1=CC=CC=C1CC1=CC=CC=C1N=C=O JIABEENURMZTTI-UHFFFAOYSA-N 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 150000004982 aromatic amines Chemical class 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000003549 soybean oil Substances 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 4
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 235000019486 Sunflower oil Nutrition 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000000828 canola oil Substances 0.000 claims description 3
- 235000019519 canola oil Nutrition 0.000 claims description 3
- 239000003240 coconut oil Substances 0.000 claims description 3
- 235000019864 coconut oil Nutrition 0.000 claims description 3
- 239000002385 cottonseed oil Substances 0.000 claims description 3
- 235000012343 cottonseed oil Nutrition 0.000 claims description 3
- 239000010460 hemp oil Substances 0.000 claims description 3
- 239000000944 linseed oil Substances 0.000 claims description 3
- 235000021388 linseed oil Nutrition 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 239000008171 pumpkin seed oil Substances 0.000 claims description 3
- 235000005713 safflower oil Nutrition 0.000 claims description 3
- 239000003813 safflower oil Substances 0.000 claims description 3
- 239000008159 sesame oil Substances 0.000 claims description 3
- 235000011803 sesame oil Nutrition 0.000 claims description 3
- 239000002600 sunflower oil Substances 0.000 claims description 3
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims description 2
- 229940119170 jojoba wax Drugs 0.000 claims description 2
- 230000031700 light absorption Effects 0.000 claims description 2
- 239000004006 olive oil Substances 0.000 claims description 2
- 235000008390 olive oil Nutrition 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 claims 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 15
- 229920001296 polysiloxane Polymers 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 150000004985 diamines Chemical class 0.000 description 9
- IMNIMPAHZVJRPE-UHFFFAOYSA-N DABCO Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 238000009440 infrastructure construction Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000009472 formulation Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000006229 carbon black Substances 0.000 description 6
- 239000003086 colorant Substances 0.000 description 6
- 150000002009 diols Chemical class 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 206010024855 Loss of consciousness Diseases 0.000 description 5
- 229920001451 Polypropylene glycol Polymers 0.000 description 5
- 239000003570 air Substances 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 150000002513 isocyanates Chemical class 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 239000002808 molecular sieve Substances 0.000 description 5
- WNLRTRBMVRJNCN-UHFFFAOYSA-N Adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene (PE) Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N Sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- 150000003512 tertiary amines Chemical class 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2,6-dimethylheptan-4-one Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 3
- SZXQTJUDPRGNJN-UHFFFAOYSA-N Dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 3
- 230000001070 adhesive Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 230000000762 glandular Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000460 iron oxide Inorganic materials 0.000 description 3
- 235000013980 iron oxide Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 229940116351 sebacate Drugs 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 150000004072 triols Chemical class 0.000 description 3
- 239000003981 vehicle Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- ARXKVVRQIIOZGF-UHFFFAOYSA-N 1,2,4-Butanetriol Chemical compound OCCC(O)CO ARXKVVRQIIOZGF-UHFFFAOYSA-N 0.000 description 2
- YABQYGQKNQNSBG-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)-3,4,5,6-tetramethylbenzene Chemical compound CC1=C(C)C(C)=C(CN=C=O)C(CN=C=O)=C1C YABQYGQKNQNSBG-UHFFFAOYSA-N 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-Propanediol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N 1,4-Butanediol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N Antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L Barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N Diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N Glutaric acid Chemical compound OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N Hexamethylene diisocyanate Chemical class O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N Isophorone diisocyanate Chemical class CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 2
- YZZTZUHVGICSCS-UHFFFAOYSA-N N-butan-2-yl-4-[[4-(butan-2-ylamino)phenyl]methyl]aniline Chemical compound C1=CC(NC(C)CC)=CC=C1CC1=CC=C(NC(C)CC)C=C1 YZZTZUHVGICSCS-UHFFFAOYSA-N 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N Suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N Triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 2
- PYOKUURKVVELLB-UHFFFAOYSA-N Trimethyl orthoformate Chemical compound COC(OC)OC PYOKUURKVVELLB-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004059 degradation Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine hydrate Chemical compound O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 239000003638 reducing agent Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- ZMANZCXQSJIPKH-UHFFFAOYSA-N triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- ATXLALDFCMZNHY-HTXNQAPBSA-N (1E)-1-[(4-methyl-2-nitrophenyl)hydrazinylidene]naphthalen-2-one Chemical compound [O-][N+](=O)C1=CC(C)=CC=C1N\N=C\1C2=CC=CC=C2C=CC/1=O ATXLALDFCMZNHY-HTXNQAPBSA-N 0.000 description 1
- ACHQDMGGRZPFAW-VLGSPTGOSA-N (1Z)-1-[(4-nitrophenyl)hydrazinylidene]naphthalen-2-one Chemical compound C1=CC([N+](=O)[O-])=CC=C1N\N=C/1C2=CC=CC=C2C=CC\1=O ACHQDMGGRZPFAW-VLGSPTGOSA-N 0.000 description 1
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-Aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- SSUJUUNLZQVZMO-UHFFFAOYSA-N 1,2,3,4,8,9,10,10a-octahydropyrimido[1,2-a]azepine Chemical compound C1CCC=CN2CCCNC21 SSUJUUNLZQVZMO-UHFFFAOYSA-N 0.000 description 1
- MYBOTUJPOSBJSE-UHFFFAOYSA-N 1,2,3,7,8,9,10,10a-octahydropyrido[1,2-a][1,4]diazepine Chemical compound C1=CCNCC2CCCCN21 MYBOTUJPOSBJSE-UHFFFAOYSA-N 0.000 description 1
- 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
- 229940035437 1,3-propanediol Drugs 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
- CWKVFRNCODQPDB-UHFFFAOYSA-N 1-(2-aminoethylamino)propan-2-ol Chemical compound CC(O)CNCCN CWKVFRNCODQPDB-UHFFFAOYSA-N 0.000 description 1
- FIXBBOOKVFTUMJ-UHFFFAOYSA-N 1-(2-aminopropoxy)propan-2-amine Chemical compound CC(N)COCC(C)N FIXBBOOKVFTUMJ-UHFFFAOYSA-N 0.000 description 1
- FJWZMLSQLCKKGV-UHFFFAOYSA-N 1-(2-ethylphenyl)propane-1,1-diamine Chemical compound CCC1=CC=CC=C1C(N)(N)CC FJWZMLSQLCKKGV-UHFFFAOYSA-N 0.000 description 1
- DMYOHQBLOZMDLP-UHFFFAOYSA-N 1-[2-(2-hydroxy-3-piperidin-1-ylpropoxy)phenyl]-3-phenylpropan-1-one Chemical compound C1CCCCN1CC(O)COC1=CC=CC=C1C(=O)CCC1=CC=CC=C1 DMYOHQBLOZMDLP-UHFFFAOYSA-N 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N 1-[2-[bis(2-hydroxypropyl)amino]ethyl-(2-hydroxypropyl)amino]propan-2-ol Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- LFSYUSUFCBOHGU-UHFFFAOYSA-N 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=CC=C1N=C=O LFSYUSUFCBOHGU-UHFFFAOYSA-N 0.000 description 1
- LEPOSOXCCTUJIP-UHFFFAOYSA-L 1-methoxy-2-(2-methoxyphenyl)benzene;dicyanate Chemical compound [O-]C#N.[O-]C#N.COC1=CC=CC=C1C1=CC=CC=C1OC LEPOSOXCCTUJIP-UHFFFAOYSA-L 0.000 description 1
- JCTXKRPTIMZBJT-UHFFFAOYSA-N 2,2,4-trimethylpentane-1,3-diol Chemical compound CC(C)C(O)C(C)(C)CO JCTXKRPTIMZBJT-UHFFFAOYSA-N 0.000 description 1
- OHJDDRJXKMWSFJ-UHFFFAOYSA-N 2,4-diethyl-5-methylbenzene-1,3-diamine Chemical compound CCC1=C(C)C=C(N)C(CC)=C1N OHJDDRJXKMWSFJ-UHFFFAOYSA-N 0.000 description 1
- HGXVKAPCSIXGAK-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine;4,6-diethyl-2-methylbenzene-1,3-diamine Chemical compound CCC1=CC(CC)=C(N)C(C)=C1N.CCC1=CC(C)=C(N)C(CC)=C1N HGXVKAPCSIXGAK-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
- FJGQBLRYBUAASW-UHFFFAOYSA-N 2-(benzotriazol-2-yl)phenol Chemical class OC1=CC=CC=C1N1N=C2C=CC=CC2=N1 FJGQBLRYBUAASW-UHFFFAOYSA-N 0.000 description 1
- JZUMVFMLJGSMRF-UHFFFAOYSA-N 2-Methyladipic acid Chemical compound OC(=O)C(C)CCCC(O)=O JZUMVFMLJGSMRF-UHFFFAOYSA-N 0.000 description 1
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 1
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 1
- WDGCBNTXZHJTHJ-UHFFFAOYSA-N 2H-1,3-oxazol-2-id-4-one Chemical class O=C1CO[C-]=N1 WDGCBNTXZHJTHJ-UHFFFAOYSA-N 0.000 description 1
- DUHQIGLHYXLKAE-UHFFFAOYSA-N 3,3-dimethylglutaric acid Chemical compound OC(=O)CC(C)(C)CC(O)=O DUHQIGLHYXLKAE-UHFFFAOYSA-N 0.000 description 1
- ALRHLSYJTWAHJZ-UHFFFAOYSA-N 3-Hydroxypropionic acid Chemical compound OCCC(O)=O ALRHLSYJTWAHJZ-UHFFFAOYSA-N 0.000 description 1
- OXKAXHPVFLEQHV-UHFFFAOYSA-N 3-tri(propan-2-yloxy)silylpropan-1-amine Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)CCCN OXKAXHPVFLEQHV-UHFFFAOYSA-N 0.000 description 1
- TZZGHGKTHXIOMN-UHFFFAOYSA-N 3-trimethoxysilyl-N-(3-trimethoxysilylpropyl)propan-1-amine Chemical compound CO[Si](OC)(OC)CCCNCCC[Si](OC)(OC)OC TZZGHGKTHXIOMN-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 1
- HJCUTNIGJHJGCF-UHFFFAOYSA-N 9,10-dihydroacridine Chemical class C1=CC=C2CC3=CC=CC=C3NC2=C1 HJCUTNIGJHJGCF-UHFFFAOYSA-N 0.000 description 1
- 229940064734 Aminobenzoate Drugs 0.000 description 1
- BDJRBEYXGGNYIS-UHFFFAOYSA-N Azelaic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
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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
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4288—Polycondensates having carboxylic or carbonic ester groups in the main chain modified by higher fatty oils or their acids or by resin acids
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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
- C08G18/70—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
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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
- C08G2190/00—Compositions for sealing or packing joints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/12—Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
- E01C11/103—Joints with packings prepared only in situ; Materials therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
- E01C11/106—Joints with only prefabricated packing; Packings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6803—Joint covers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6807—Expansion elements for parts cast in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/681—Sealings of joints, e.g. expansion joints for free moving parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6812—Compressable seals of solid form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6813—Compressable seals of hollow form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/21—Utilizing thermal characteristic, e.g., expansion or contraction, etc.
Abstract
Provided is a header composition for an expansion joint system. The header composition includes a hybrid polyurea-polyurethane composition and is designed to have a short cure time at low temperatures. Also provided are an expansion joint system incorporating the hybrid polyurea-polyurethane header composition and a method for applying the header composition into the expansion joint system. composition and a method for applying the header composition into the expansion joint system.
Description
EXPANSION JOINT COMPRISING A HYBRID POLYUREA-
ETHANE HEADER COMPOSITION
TECHNICAL FIELD
Provided is a header material for an ion joint system. The header material
provides a transition from an expansion joint gap to an adjacent structure and is capable
of being used in various types of infrastructure.
BACKGROUND
During infrastructure construction, a gap is intentionally provided between
adjacent ural members for accommodating dimensional changes within the
infrastructure. Such dimensional changes occur as a result of ion and ction
of the structural members due to ions including, but not limited to, temperature
changes, shortening caused by pre- and /or post- stressing of the concrete sections, creep,
seismic disturbances, as well as deflections and longitudinal forces caused by vehicular
traffic.
An expansion joint system is typically ed to accommodate such gaps within
infrastructure construction ing movements in the vicinity of such gaps. An
expansion joint is typically formed by sealing the gap between adjoining structural
members with an expansion joint and applying a mass of structural material (aka, a
header al) to each side of the joint opening. Expansion joint systems are capable of
accommodating dimensional changes to the gap occurring with the expansion and
contraction of the structural members due to factors listed above.
Expansion joint systems, particularly in heavily trafficked bridge structures, sports
ms, parking garages and airports are degraded when the header material must bear
the wear and tear caused by contact with vehicle Wheels. The expansion joint material
can be compromised from the gap between the structures when the adhesion between the
concrete al and the expansion material degrades allowing the s of water and
development of damaging affects.
In addition, header compositions typically have a short g time (also
referred to as pot life) before cure. At higher temperatures, the working time is even
shorter as higher temperatures generally result in shorter working times. This poses a
problem because such header compositions do not e for an adequate amount of
time for the header material to be applied properly within an expansion joint system.
Therefore, a need exists in the art for an improved expansion joint system and
header material which is capable of resisting degradation by providing ed
performance and which provides for an adequate amount of time to be applied before
cure.
SUMMARY
Provided is a header composition, for use as a component of an expansion joint
system, the header composition comprising a blend of a polyurea component and a
polyurethane component.
Also provided is an expansion joint system comprising first and second adjacent
ural members having a gap defined between said structurai members, recesses
formed in the surfaces of said first and second adjacent structural members, and a hybrid
polyurea~polyurethane composition located within said the recess of at least one of said
first and second adjacent structural members.
Further provided is an expansion joint system comprising first and second
nt ural members having a gap defined between said structural members,
recesses formed in the surfaces of said first and second adjacent structural members, and
a header composition located within said recess of at least one of said first and second
nt structural members, said header composition sing a polymer and a low
moisture content aggregate.
Also provided is a method of applying a header composition within an expansion
joint comprising introducing a first component of said header composition from a first
storage container to a mix chamber through a first conduit; introducing a second
ent of said header composition from a second storage container to a mix chamber
through a second 00nduit; mixing said first and second components to initiate a reaction
n said first and second components; and applying the mixture of said first and
second components into a recess formed in the surface of at least one of a first and second
adjacent structural members.
According to certain iliustrative embodiments, the method of applying a header
composition within an expansion joint system for an tructure construction
comprises introducing at least one nate from a first e container to a mix
chamber through a first conduit, introducing at least one ‘polyol and an amine from a
IS second storage container to the mix head through a second t, mixing the
isocyanate, the polyol and the amine in the mix head to form a hybrid polurea-
polyurethane header composition and applying the hybrid polurea-polyurethane header
composition into recesses formed in nt structural members. The hybrid polurea~
polyurethane header composition may be applied h a movable mixer output.
According to further rative embodiments, the method of applying a header
composition within an expansion joint comprises introducing a first component of said
header composition from a first storage container to a mix r through a first
conduit; introducing a second component of said header composition from a second
storage ner to a mix chamber through a second conduit; mixing said first and
second components to initiate a reaction between said first and second components;
positioning a third conduit having a plurality of res within a recess formed in the
surface of at least one adjacent first and second structural members; and applying the
mixture of said first and second components into said recess formed in the surface of at
least of said first and second adjacent structural members.
According to certain illustrative embodiments, the method of ng a header
composition within an expansion joint system comprises introducing at least one
nate from a first storage container to a mix chamber through a first conduit;
ucing at least one polyol and an amine from a second e container to the mix
chamber through a second conduit; mixing the nate, the polyol and the amine in the
mix chamber to form a hybrid poiyurea-polyurethane header material; and applying the
hybrid polyurea—polyurethane header material to the expansion joint through a third
conduit having a plurality of apertures, wherein the third t is positioned within a
recess formed in the surface of at least one of first and second structural members.
BRIEF DESCRIPTION OF THE DRAWINGS
is a schematic of an illustrative embodiment of a device used to apply the
header material within an expansion joint for infrastructure construction.
is a schematic of an illustrative embodiment of a device used to apply the
header material within an expansion joint for infrastructure construction.
is a schematic of an illustrative embodiment of an expansion joint system
containing a header material.
is a schematic of an rative embodiment of an expansiOn joint system
containing a header material.
is a schematic of an illustrative ment of an expansion joint system
containing a header material.
is a schematic of an illustrative embodiment of an expansion joint system
containing a header material.
FlG. 7 is a schematic of an illustrative embodiment of an expansion joint system
containing a header material.
is a tic of an illustrative embodiment of an expansion joint system
containing a header material.
is a schematic of an illustrative embodiment of an expansion joint system
ning a header material.
DETAILED DESCRIPTION
Provided is a header material that is a component of an expansion joint system
used between two adjacent, spaced-apart sections of an infrastructure construction. Non-
limiting es of infrastructure construction which the expansion joint system and
header material may be utilized include bridges, ys, waterways, piers, railways,
airport runways, parking decks and other similar ages. These structures are
typically installed in sections to allow for te space to set, to minimize cracking
which may result from the thermal expansion and ction of the concrete and to
accommodate the various stresses that are typically placed on the structure.
The header material comprises a hybrid polyurea—polyurethane header
ition. The header material may serve as a structural component of the expansion
joint system to e a transition from an expansion joint gap to an adjacent structure.
In certain embodiments, the header material is capable of transferring vehicular wheel
loads to the superstructure in addition to absorbing impact load as vehicles traverse
across
an expansion joint.
Between each construction section is a gap defined between nt first and
second structural members. Each of the first and second structural members has a recess
formed therein. The header material may be installed in recessed areas formed in first
and second structural members defining a
gap therebetween. The recesses of the first and
WO 83694
second structural members oppose each other and abut the gap formed between the first
and second structural members. in certain embodiments, the expansion joint is sealed by
providing a stop-gap (e.g., a backing rod) in between the gap formed between the
adjacent first and second roadway sections and applying a sealant over the step—gap to
close the gap n the adjacent first and second roadway sections.
In other embodiments, the ion joint is sealed by anchoring a strip seal or a
glandular seal between the adjacent first and second roadway sections. A header material
is applied within the recessed portions of the nt first and second y sections.
The seal and the header material close the gap between the adjacent first and second
roadway ns and provide a smooth road surface or base which also functions as a
cushion and an energy absorber for passing traffic.
The header composition used in the expansion joint system
may also include low
moisture content aggregates which are used as a form of reinforcement to the header
composition. By "low moisture content" it is meant that the aggregate has a re
content which does not contribute to foaming of the hybrid poiyurea—poiyurethane header
composition which may lower the l compressive strength of the set header
composition. in certain embodiments, the low moisture content aggregate has a moisture
t of about 0.2% or less. In other embodiments, the low moisture content aggregate
has a re content of less than 0.05%. In other embodiments, the aggregate has a
moisture content of less than 0.02%. in other embodiments, the low moisture content
aggregate has a moisture content of less than 0.01%. t being bound to any
particular theory, it is believed that the tow moisture content of the aggregate aliows for
superior bonding upon application of the header material to the aggregate and allow the
header material to achieve the final strengths (i.e., compressive strength) required for
expansion joint systems after cure.
Without being bound to any particular theory, it is ed that the aggregate
may also function like a heat sink during the ric reaction which takes place during
formation of the header material. In general, the polymeric reaction is an exothermic
reaction, wherein the heat produced during the al reaction may function as a
catalyst to further speed up the reaction process. The low moisture content aggregate
may counteract this effect by absorbing the heat produced during the formation of the
header material and g down the l reaction process to allow sufficient time for
application of the header material. In addition, without being bound to any particular
theory, it is believed that the aggregate has the effect of minimizing age. Material
without aggregate exotherms and in so doing, expands. Once the material cools, it
shrinks back to a smaller size. It is believed that aggregates ze this tendency.
According to certain embodiments, any header material may be used in
combination with the low moisture content ate, including the hybrid polyurea—
polyurethane header composition. in certain embodiments, about 50% to about 60% of
the recesses are filled with the low moisture content aggregate and about 40% to about
50% of the es is filled with a header material. The low moisture content aggregate
may be first placed within the recesses of the nt roadway sections before the header
material is installed into the recesses. The header material flows around the low moisture
content aggregate and is allowed to cure. in other embodiments, the header material is
first added to the recesses before the aggregate is added. The aggregate is then added to
the header material and allowed to sink within the header al.
The header material is a high performance hybrid header material comprising a
blend or mixture of a polyurea component and a polyurethane component. The hybrid
polyurea—polyurethane header material is formed by the reaction of at least one
nate, at least one polyol and at least one amine.
Any known isocyanate may be utilized to form the hybrid polyurea-polyurethane
header ition. The isocyanate may include at least one of aromatic isocyanates,
aliphatic isocyanates, cycloaliphatic isocyanates, araliphatic isocyanates or mixtures
thereof. The isocyanate component typically is a diisocyanate or a triisocyanate or
mixtures f. Examples of aromatic isocyanates which may be utilized to form the
polyurea-polyurethane hybrid header material e but are not limited to methylene
diphenyl diisocyanates (MDl), toluene diisocyanates (TDI), ric methylene
diphenyl diisocyanates (PMDI), p-phynyl diisocyanates (PDI), naphthalene diisocyanates
(NDI), aliphatic isocyanates such as hexamethylene diisocyanates (HDI), hexamethylene
diisocyanate trimers (HDl Trimers), dicyclohexylmethane diisocyanates ),
isophorone diisocyanates (lPDI), cyciohexane diisocyanate (CHDI), tetramethylxylylene
diisocyanate (TMXDI) or mixtures thereof.
In other embodiments, suitable polyisocyanates may include diisocyanates such as
m-phenylene diisocyanate, to]uene-2,4—diisocyanate, toluene—2,6-diisocyanate, mixtures
of 2,4— and 2,6-toluene diisocyanate, hexamethylene—l,6-diisocyanate, tetramethylene-
isocyanate, cyclohexane-l,4-diisocyanate, hexahydrotolylene diisocyanate (and
s), naphthylene-l ,S-diisocyanate, l-methoxyphenyl-2,4-diisocyanate,
diphenylmethane-4,4‘-diisocyanate, diphenylmethane-2,4’diisocyanate, diphenyimethane
2,2'diisocyanate, m—xylene diisocyanate, m- or amethylxylene diisocyanate,
4,4'dicyclohexylmethane diisocyanate, hydrogenated xylylene yanate, l-methyl-
2,4-diisocyanato-cyclohexane, tetramethoxybutane isocyanate, butane 1,4-
yanate, 1,6-diisocyanato-2,2,4-trimethylhexane, tetramethoxybutane 1,4-
diisocyanate, butane 1,4-diisocyanate, l,6-diisyanate-2,2,4-trimethylhexane, 1,6-
diisocyanato-2,4,4-trimethylhexane, l-isocyanato-lmethyl-4(3)-
isocyanatomethylcyclohexane, 1 ,1 2-dodecane diisocyanate, 4,4'»biphenylene
diisocyanate, 3,3'—dimethoxy-4,4’-biphenyl diisocyanate, 3,3’-dimethyl-4,4'-diisocyanate,
1-isocyanato~3,3,S-trimethyl~5-isoeyanatomethyieyclohexane; triisocyanates such as
4,4‘,4‘-triphenylmethane tri-isocyanate; triisocyanates such as 4,4',4'-triphenylmethane tri-
isocyanate, polymethylene polyphenylisocyanate and toluene, 2,4,5-triisocyanate; and
tetraisocyanates, such as imethyldiphenylmethane~2,2'-5,5‘-tetraisocyanate, or
mixtures thereof. In certain embodiments, the isocyanate comprises a methylene
diphenyl yanate. More particularly, in n embodiments, the isocyanate
comprises diphenylmethane 4,4'—diisocyanate. The amount of diphenylmethane 4,4'-
diisocyanate used to form the hybrid poiyurea-polyurethane header composition may
range from about 20 to about 55 percent by weight of the header material.
Any known polyol may be utilized to form the hybrid polyurea-polyurethane
header composition. in certain embodiments, the polyol is a ble based polyol.
Suitable polyols include glassy solid/amorphous or crystalline polyhydroxy compounds
and fatty acid . Difunctional polypropylene glycols may be mentioned as typical
examples. Random copclymers and/or block copolymers of ethylene oxide and
ene oxide which have hydroxyl groups can also be used. Suitable polyetherpolyols
are the polyethers known in polyurethane try, such as the polyols, prepared using
r molecules from styrene oxide, propylene oxide, butylene oxide, ydrofilran or
epichlorohydrin.
Further le polyols which may be used to form the polyurea~polyurethane
hybrid header material include glassy amorphous or crystalline terdiols or
polyesterpolyols which are liquid at 25°C and can be prepared by condensation of di-or
tricarboxylic acids, such as adipic acid, sebacic acid, glutaric acid, azelaic acid, suberic
acid, undecanedioic acid, dodecanedioic acid, 3,3-dimethylglutaric acid, terephthalic
acid, isophthalic acid, hexahydrophthalic acid, andz’or dimeric fatty acid, with low
molecular weight diols, triols or polyols, such as ethylene glycol, propylene glycol,
diethylene glycol, triethylene glycol, dipropylene glycol, 1,4-butanediol, l,6-hexanediol,
l,8-octanediol, 1,10-decanediol, l,’l2—dodecanediol, dimeric fatty alcohol, glycerol,
pentaerythritol and/or trimethylolpropane.
Other suitable polyols which may be used to form the polyurea—polyurethane
hybrid header material include polypropylene diol, polypropylene triol, polypropylene
polyol, polyethylene diol, polyethylene triol, polyethylene polyol, tadiene diol,
polyesterdiol, polyestertriol, polyesterpolyol, polyesteretherdiol, polyesterethetriol,
polyesteretherpolyol and mixtures thereof.
Further suitable polyols include polyesters, for example those based on
caproiactone, which are also referred to as aprolactones". Further polyols which
may be used are polycarbonate polyols and dimeric diols and polyols based on vegetable
oils and their derivatives, such as castor oil and the derivatives thereof or epoxidezed
soybean oil. Also suitable are polycarbonates which have hydroxyl groups and are
obtainable by on of carbonic acid derivatives, e.g. diphenyl carbonate, dimethyl
carbonate or ne, with diols. For example, ethylene glycol, 1,2-and 1,3-
propanediol, l,3-and 1,4-butanedioi, l,6-hexanediol, tanediol, tyl glycol,
l,4—bishydroxymethylcyclohexane, 2-methyl- 1 ,3-propanediol, 2,2,4—trimethylpentane—
1,3—diol, dipropyiene glycoi, opylene glycols, dibutylene glycol, polybutylene
glycols, bisphenol A, tetrabromobisphenol A, glycerol, trimethylolpropane, 1,2,6-
hexanetriol, 1,2,4—butanetriol, trimethylolpropane, pentaerythritol, quinitol, mannitol,
sorbitol, methylg'lycoside and l,3,4,6—dianydrohexitols are particularly suitable.
Hydroxy-functional polybutadienes, which are commercially ble, inter alia, under
the trade name "Poly-bdg", can also be used as polyois, as can hydrogenated analogues
thereof. Hydroxy-functional polysulphides, which are marketed under the trade name
"Thiokol®" NPS-282" and hydroxyl-functional poiysiloxanes are also suitable.
in certain embodiments, the polyol used to form the hybrid polyurea-polyurethane
header composition typically comprises a fatty acid ester. The fatty acid ester may be at
least one of l fatty acid esters, synthetic fatty acid esters or mixtures thereof. Non-
ng examples of natural fatty acid esters which may be used to form the polyurea-
polyurethane hybrid header material include but are not limited to canola oil, castor oil,
coconut oil, cotton seed oil, flax seed oil, hemp seed oil, jojoba oil, olive oil, palm oil,
peanut oil, pumpkin seed oil, safflower oil, sesame oil, soybean oil, sunflower oil, or
mixtures thereof. In certain embodiments, the fatty acid ester or polyol used to form the
hybrid polyurea-polyurethane header composition is castor oil. Castor oil, when cross—
linked with the isocyanate, has been shown to resist water ion and degradation.
The amount of castor oil used to form the hybrid polyurea-poiyurethane header
ition may range from about 65 to about 95 percent by weight of the header
material.
Synthetic fatty acid esters which may be utilized to form the ea-
polyurethane hybrid header material include but are not limited to various polyether
trimers or tetra-functional resins. le but non—limiting examples of synthetic fatty
acid esters which may be utilized to form the polyurea-polyurethane header material
include Polycin® D290 and n® 13-265, commercially available from Vertellus
Performance Materials (Greensboro, NC) and N, N, N”, N'—Tetrakis (2-hydroxypropyl)
ethylene-diamine, commercially sold under the trademark Quadrol (BASF Corporation,
Wyandotte, MI). Polycin 0-290 has a renewable character of greater than 80% and, in
certain embodiments, may function as a modifier to e a portion of the amine
component. Polycin D~290 may also have the effect of improving the ity of the
overall hybrid polyurea-polyurethane header composition. In n embodiments,
Polycin D-290 may improve the ity of the hybrid polyurea—polyurethane header
composition by about 20%, allowing the header al to more easily flow through the
low moisture content aggregate, where applied. In certain embodiments, the polyol may
comprise a combination of castor oil and Polycin D-290. In certain embodiments, the
amount of Polycin 13-290 used in combination with castor oil is about 10% by weight of
the total amount of polyol used to form the hybrid polyurea—polyurethane header material.
Any amine may be utilized to form the hybrid polyurea—polyurethane header
composition. in certain embodiments, a ation of more than one amine
may be
used to form the hybrid polyurea-polyurethane header ition. The amine
may be at
least one of a monofunctional amine, a difunctional amine, a trifunctional amine, a
tetrafunctional amine, polyamines or mixtures thereof.
Non—limiting examples of polyamines which may be used to form the polyurea—
polyurethane hybrid header al, include but are not limited to, hydrazine, hydrazine
hydrate and substituted hydrazines, such as N—methylhydrazine, N,N'-dimethylhydrazine,
acid hydrazides of adipic acid, methyl adipic acid, sebacic acid, hydracrylic acid,
terephthalic acid, semicarbazidoalkylenehydrazides, such as icarbazidopropionic
acid hydrazide, semicarbazidoalkylene carbazine esters, such as, for example 2-
semicarbazidoethyl carbazine ester, andfor aminosemicarbazide compounds, such as 13-
aminoethylsemicarbazidocarbonate and mixtures thereof.
Other suitable examples of amines which may be used to form the polyurea-
polyurethane hybrid header material include polypropylene diamine,
polypropylenetriamine, polypropylenepolyamine, poiy-THF—diamine and mixtures
thereof.
In certain ments, the amine comprises two difunctional amines and a
trifunctional amine. in certain embodiments, at least one of the difunctional amines is an
aromatic amine. Suitable examples of aromatic difunctional amines which may be
ed to form the hybrid polyurea-polyurethane header composition include but are not
limited to N,N'-bis(2-propyl)polyoxypropylene diamine, commercially sold under the
trademarks Jeffamine® SD, Jeffamine® SD-231 and Jeffarnine® SD 2001 (Huntsman
Corporation, The Woodlands, TX); Jeffamine® RFD-270 (Huntsman Corporation, The
Woodlands, TX); polyoxypropylene diamine, commercially sold under the trademarks
Jeffamine® D400, ine® D-2000, Jeffamine® D-4000 (Huntsman Corporation,
The Woodlands, TX); l,5-pentanediamine, 2-methyl, commercially sold under the
ark Dytek® A (lnvista, Wilmington, DE); 1.,2-diaminocyclohexane, commercially
sold under the trademark Dytek® DCH-99 ta, Wilimington, DE); 4,4'—
enebis[N-sec-butylaniline], commercially sold under the trademarks UnilinkTM
4200 Diamine (Dorf Ketal Chemicals india Pvt Ltd, Mumbai, India), PolyLink 4200 (The
Hanson Group LLC, , GA and Aceto Corporation, Port Washington, NY); meta-
xylenediamine, commercially available from the Mitsubishi Gas Chemical y, Inc.
(New York, New York); diethylmethylbenzenediamine, commercially available under the
trademark Lonzacure® DETDA 80 LC (Lonza Ltd, Basel, Switzerland);
diethyltoluenediamine, commercially available under the trademarks Ethacure® 100 and
Ethacure® IOOLC (Albemarle, Baton Rouge, LA); dimetbyl thin-toluene diamine,
commercially available under the trademark Ethacure® 300 arle, Baton Rouge,
LA); and bis(N-sec—butyl-p-aminophenyl)methane, commercially available under the
trademark Ethacure® 420 (Albemarle, Baton Rouge, LA) or mixtures thereof. In certain
embodiments, one of the two difuctional amines is ethylenebis[N-sec-butylaniline].
In n embodiments, the amount of 4,4'-methylenebis[N-sec-butylaniline] used to
form the hybrid polyurea-polyurethane header composition may range from about 1 to
about 10 percent by weight of the header material.
In certain embodiments, at least one of the difunctional amines is an eric
e. Suitable examples of oligorneric diamines which may be utilized to form the
hybrid polyurea-polyurethane header composition include but are not limited to a
diamine curative, commercially sold under the trademark Versalink® D-740M; a
polytetramethyleneoxide-di—p—aminobenzoate, commercially sold under the trademarks
Versalink® P—250, Versalink® P—650, ink® P-lOOO (Air Products and Chemicals,
lnc., Allentown, PA); or mixtures thereof. In certain ments, one of the two
difunctional amines is polytetramethyleneoxide—di-p—aminobenzoate. The amount of
p0lytetramethyleneoxide-di-p-aminobenzoate used to form the hybrid polyurea»
polyurethane header composition may range from about i to about 10 percent by weight
of the header material.
Non-limiting examples of trifunctional amines which may be utilized to form the
hybrid polyurea-polyurethane header composition include but are not limited to
polyetheramines. Examples of polyetheramines which may be utilized to form the
polyurea—polyurethane hybrid header material include but are not limited to a
polyoxypropylenediamine such as glycerol oly{propylene glycol)aminc terminated]
ether, commercially sold under the trademarks Baxxodur® EC 3]] (BASF SE,
shafen, Germany) and Jeffamine® T-SOOO (Huntsman Corporation, The
Woodlands, TX); a polyoxypropylenetriamine such as that commercially sold under the
trademark Jeffamine® T403 (Huntsman Corporation, The Woodlands, TX); glyceryl
poly(oxypropylene)triamine, commercially sold under the ark Jeffamine® T-BOOO
(Huntsman Corporation, The Woodlands, TX); xamethylene)triamine,
commercially sold under the trademark Dytek® BHMT (lnvista, Wilmington, DE);
poly(propylene glycol) bis(2-aminopropyl ether), commercially sold under the mark
Polyetheramine D 2000 (BASF SE, Ludwigshafen, y) or mixtures thereof. In
certain embodiments, the polyetheramine is a glycerol tris[poly(propylene glycol)amine
terminated] ether. The amount of glycerol olymropylene glycol)amine terminated]
ether used to form the hybrid polyurea-polyurethane header composition may range from
about 1 to about 10 percent by weight of the header material.
A suitable but niting example of a tetrafunctional amine which may be used
to form the hybrid polyurea—polyurethane header composition is N,N‘-bis(2~
propyl)polyoxypropylenediaminc) commercially sold under the trademark Jeffamine®
SD-401 (Huntsman Corporation, The Woodlands, TX).
In certain embodiments, the polyurea component of the hybrid polyurea-
polyurethane header composition is formed first h a multiple curing process. This
multi-step curing process may be achieved through the ion of various amines. For
example, the curing process may involve three steps where two difunctional amines and a
trifunctional amine are utilized. First a trifunctional amine such as
polyoxypropylenediamine reacts with the isocyanate. Next, an oligomeric diamine, such
as polytetramethyleneoxide-di-p-aminobenzoate, reacts with the isocyanate. Third, an
aromatic diamine, such as 4:4'-methylenebisiN-sec-butylaniline] reacts with the
isocyanate and also functions as a chain extender. It is also possible that a lesser amount
of polyol may react with an nate during this multi-step curing
process to form a
relatively small portion of the polyurethane component in addition to the ea
component.
In certain embodiments, the isocyanate comprises about 38.3 percent by weight of
the header material, the polyol comprises about 44.8 t by weight of the header
material and the amines comprise about 12.2 t by weight of the header material. in
n embodiments, the ratio of polyol to isocyanate is 2:1 by volume without
any other
components being present.
The header material ation may comprise additional components which
include but are not limited to at least one of catalysts, pigments, defoarners, moisture
scavenging molecules, moisture sensitivity reducers, adhesion ers, viscosity
depressants, UV ers, plasticizers, antioxidants, fungicides, UV stabilizers, and
thixotropic agents.
in one embodiment, the total amount of such additives range from about 4 to
about 5 weight percent; and in some embodiments, range from about 1 to about 10 weight
percent, based on the total weight of the header material.
One or more catalysts which rate the isocyanate-poiyol and/or nate—
amine reaction may be used within the header material, including the hybrid polyurea-
polyurethane header composition, including but not limited to acids, e.g.,
paratoiuenesulphonic acid, or tertiary amines or organo metallic nds which have
atoms such as, for example, Sn, Mn, Fe, Co, Cd, Ni, Cu, Zn, Zr, Ti, Hf, Al, Th, Ce, Bi,
Hg, N, and P and mixtures thereof. The molar catalyst/isocyanate ratio is dependent on
the type of isocyanate and the type alyst.
Suitable examples of tertiary amines which may be used within the header
material, including the hybrid polyurea-polyurethane header composition, include but are
not d to triethylamine, triethylenediarnine (DABCO), dimethylethanolamine,
triethanolamine, N-ethyl morpholine, N-methyidicyclohexy]amine, N,N—dimethyl
cyclohexylamine, and N,N,N',N‘-tetramethyl~1,3-butanediamine, ether and the like.
Other suitable examples of tertiary amine catalysts include but are not d to 1,8-
diazabicyclo[5.4.0]undec~7~ene (a DBU catalyst), l,5-diaza-bicyclo[5.4.0}undecene
(an acid blocked DBU type catalyst), 1,8 Diaza—bicyclo (5,4,0) undecene-7, a solution of
triethylenediamine and dipropyiene giycol, 1,4—diazabicyclo[2.2.2]octane (crystalline),
Urea,[3—(dimethylamino)propyli-(6Ci,8(3l,QCI), 2,4,6—tris(dimethyia‘minomethyl)phenol,
Dabco® DCSLE (Air Products and Chemicals, Allentown, PA), an acid d tertiary
amine such as Dabco® 8254 (Air Products and Chemicals, Ailentown, PA), 3-(3-
hydroxypropoxy)propan-l-ol, 2—ethy1hexanoic acid or mixtures thereof. in certain
embodiments, l,S-diaza-bicyclo[5.4.0]undec—S-ene and l,8-diazabicyclo[5.4.0]undec
ene are utilized as sts. in certain embodiments, these catalysts are activated by
rising temperatures below 122°F (50°C).
Suitable examples of organo metallic compounds which may be used within the
header material, including the hybrid polyurea-polyurethane header composition include
but are not limited to tin compounds such as us octoate, us chloride,
dibutyltin dilaurate, dibutyltin diacetate, dibutyltin-di—Z ethyl hexoate and the like. Other
suitable organo metallic compounds include bismuth octoate, zinc octoate and the like.
The amount of catalysts, if used, may, in one ment, be present in an
amount ranging from about 0.1 to about 1 weight percent based on the total weight of the
header material. In other embodiments, if a solution of ylenediamine and
dipropylene glycol is used as a catalyst, the amount may be from about 0.] to about 5
weight percent based on the total weight of the header composition. In n
embodiments, where 1,5-diaza~bicyclo[5.4.0]undec~5-ene and 1,8—
diazabicyclo[5.4.0]undecene are utilized as catalysts, the amount of l,5~diaza—
0[5.4.0]undecene which is used is 0 to about 0.5% of the total a and the
amount of l,8-diazabicyclo[5.4.0]undecene ed is about 0.05 to about 1% of the
total formula.
In certain embodiments, two catalysts such as l,8—diazabicyclo[5,4.0]undec—7—ene
(a DBU catalyst) and l,5-diaza—bicyclo[5.4.0]undecene (an acid blocked DBU—type
catalyst) are used within the hybrid polyurea-polyurethane header composition
formulation (where castor oil is used as the polyol) in order to accelerate the reaction time
and extend the working time of the final mixture. The DBU st causes the polyol
and isocyanate to react and form the polyurethane ent of the polyurea-
polyurethane hybrid header material. This reaction lly takes place afier the amines
react to form the polyurea component of the hybrid polyurea—polyurethane header
composition as described above. The DBU catalyst, when applied to the mixture,
produces an exothermic reaction between the polyol and the isocyanate which accelerates
the cure further and deblocks the acid blocked DBU-type catalyst, such as 1,5-diaza-
bicyclo[5.4.0]undecene, which is activated by rising temperatures below 122°F
(50°C). The tie—blocked catalyst accelerates the reaction further but delays it long enough
2012/074644
to allow for sufficient time for application of the hybrid polyurea—polyurethane header
composition to the expansion joint system.
In certain ments, a complexing agent may be used with the catalyst to slow
down the reactivity of the catalyst. For example, the catalyst l,5~diaza-bicyclo (5.4.0)
undec-S-ene uses an acid blocking system to slow down the reaction of the catalyst.
in certain embodiments, the hybrid polyurea—polyurethane header composition has
a cure time or potlife before gellation of imately 4 to 10 minutes at 75°F (24°C)
and about 300 ml mass, with no aggregate t. in other embodiments, where low
moisture content aggregate are added to about 300 mi mass of the hybrid polyurea—
polyurethane header ition, the header material has a potlife before gellation of
approximately 20 minutes to 3 hours at 75°F (24°C). in certain ments, the cure
time before vehicles can pass over the hybrid polymers-polyurethane header composition
may range from about 30 minutes to about 14 hours.
The header composition may also comprise at least one coloring agent, such as a
pigment or a dye, to provide a desired color to the formulation. The header composition
may be any color and shade. Examples of colors which may be used include black,
green, gray, brown and blue. in certain embodiments, the desired color is achieved by
combining at least two coloring agents. The amounts of coloring agents combined may
vary in any amount to obtain the desired color. Examples of coloring agents are carbon
black and titanium dioxide which may be in the rutile form, but other coloring agents are
also useful. Carbon black and titanium e may act as both pigments and fillers in
the ation. Additional examples of pigments include, but are not limited to, barium
e, zinc oxide, zinc sulfide, basic lead carbonate, antimony trioxide, ones (zinc
sulfide and barium sulfate), fluorescent dyes, oxaline dyes, inorganic color pigments
such as iron oxides (e.g., iron oxide black and iron oxide brown), iron blue, carbon black,
flyash, graphite, luminescent pigments, zinc yellow, zinc green, ultramarine, ese
black, antimony black, manganese violet, Paris biue, and Schweinfurter green, organic
color pigments such as sepia, gamboge, Cassel brown, toluidine red, para red, Hansa
yellow, indigo, azo dyes, anthraquinonoid and indigoid dyes, as well as dioxazine,
quinacridone, phthalocyanine, phthalo blue, phthalo green, isoindolinone, metal complex
pigments, and mixtures f. ln certain embodiments, the hybrid polyurea-
polyurethane header composition comprises carbon black as a filler/pigment. The
amount of carbon black used within the hybrid polyurea—polyurethane header
composition may range from 0 to about 0.6 percent by weight of the header composition.
The header composition may also include a defoamer to reduce the amount of
foaming or gas bubbles produced during the polymerization reaction. Any defoamer
suitable for use within solvent—free poiyurea-polyurethane systems may be used. le
examples of defoamers which may be used in the header material, ing the hybrid
polyurea~polyurethane header composition include but are not limited to silicone
defoamers, mineral oil/silica ers, low surface tension additives and mixtures
thereof. Examples of silicone defoamers which may be used in the hybrid polyurea-
polyurethane header composition include but are not limited to polysiloxane solutions
and non-aqueous emulsions of polysiloxanes. Examples of polysiloxane solutions which
may be used as a defoamer include but are not d to a cyclohexanone polysiloxane
solution, a diisobutylketone polysiloxane on and mixtures f. An example of a
non—aqueous polysiloxane emulsion which may be used as a defoamer is a polysiloxane
propylene glycol emulsion. in certain ments, the defoamer is a diisobutylketone
polysiloxane solution commercially available from BYK Chemie GmbH (Wesel,
Germany) under the under the trademarks BYK®-066N, BYK®~070, BYK®~077,
BYK®~A500. in other embodiments, the defoamer is a ne er commercially
available. from Cognis {Monheim Germany) under the trademark DEHYDRAN® 1208.
The amount of defoamer used within the hybrid polyurea-polyurethane header
composition may range from about 0.1 to about 0.5 percent by weight of the header
composition.
Moisture scavenging molecules may be added to the header ition, to
ensure that the d reaction between the nate group (NCO) and the hydroxyl
(OH) group takes place to form a polyurethane rather than a reaction between the
WO 2013083694
isocyanate group (NCO) and water. Thus, a moisture scavenging molecule may be used
to l the water level of the polyurethane prepolymer component of the header
composition. Examples of moisture gers include but are not limited to molecular
sieves which physically absorb the water, quicklime, oxazolidones, monoisocyanates
such as enesulfonyl isocyanate, and ortho esters such as methyl orthoformate and
triethylorthoformate and mixtures thereof. In certain embodiments, the moisture
scavenging molecule which may be used in the hybrid polyurea-polyurethane header
composition is a molecular sieve such as a molecular sieve zeolite capable of absorbing
moisture from the system. The molecular sieve may have a size of from about 3 to about
4 angstroms to absorb water from the system. In other embodiments, the re
scavenging molecule is a 50% solids paste in castor oil. Suitable but non-limiting
examples of a moisture scavenging molecule which may be utilized in the t hybrid
polyurea-polyurethane header composition es Baylith L Paste, commercially
available by Bayer Material Science, LLC (Pittsburgh, PA), Molsiv L paste and universal
oil product (UOP) Paste, commercially available from A.B. Colby, lnc. (McMurry, PA)
and Purmol 35'!” paste commercially available from Zeochem AG (Uetikon, Switzerland).
The amount of moisture scavenging molecule used within the hybrid polyurea—
polyurethane header composition may range from about 0.2 to about 2.5 percent by
weight of the header ition.
re~sensitivity reduction additives may also be included within the hybrid
polyurea-polyurethane header composition in order to reduce the sensitivity to free
water/moisture. Without being bound to any particular , it is believed that this is
accomplished by reducing the amount of secondary reactions of isocyanate groups with
water molecules. Suitable examples of moisture sensitivity ves include but are not
limited to ric isocyanate oxazolidine additives such as Amox LV and Arnox 4,
commercially available by TH l-lilson Company (Wheaten, IL); lncozol LV and lncozol 4
LV, cially available by lncorez Corporation (Lancashire, United Kingdom); para—
tosylisocyanate (PTS l), 3-ethy1~2~methyl(3-methylbutyl)—1 , 3-oxazolidine
commercially sold under the trademark ZoldineTM MS~P1us (Angus/The Dow Chemical
Company, Sterlington, LA). An example of a moisture sensitivity additive which may be
used in the hybrid polyurea-poiyurethane header composition is Amox LV. The amount
of Arnox LV used within the hybrid poiyurea—polyurethane header composition may
range from about 0.2 to about 1 percent by weight of the header composition.
on promoters can also be used in the header composition to enhance the
adhesive properties of the underlying structural moiecules. Examples of adhesion
promoters include, but are not limited to at least one of 2-aminoethyi-
dimethylmethoxysiiane, 6~aminohexyi-tributoxysilane, 3-aminopropyl—trimethoxysilane,
3-aminopropyl-triethoxysilane. 3—aminepropyl-methyldirnethoxysilane, 3~aminopropyl-
methyldiethoxysiiane, S-aminopentthrimethoxysilane, 5~aminopentyl~triethoxysilane, 3-
aminopropyl-triisopropoxysilane, y-glycidoxypropyltrimethoxysilane, y-
glycidoxypropyitriethoxysilane, aptopropyltrimethoxysilane,
y—mercaptopropyitriethoxysilane, y-ureidopropyltrimethoxysilane,
y-ureidopropyltriethoxysilane, l~{3-(trimethoxysiiyl)propyi]urea, l-[3—
(triethoxysilyl)propyl]urea, arninoethylamino)propyl]trimethoxysiiane, [3-(2-
minoethylamino)propyl]triethoxysilane, 2-(3,4~epoxycyclohexyl)ethyl-trimethoxysilane,
-epoxycyclohexyl)ethyl—triethoxysilane, 3-(phenylamino)propyl~trimethoxysilane,
3-(phenylamino)propyl—triethoxysiianeg bis{3—(trimethoxysilyl)propyl} amine, bis[3-
(triethoxysilyl)propyi]amine, 3-mercaptopropyi-methyldimethoxysilane, 3—
mpropyl-methyldiethoxysilane, [3-(2-aminoethylamino)propyl]methyl
dimethoxysiiane, [3—(2—aminoethyiamino) propylimethyi diethoxysilane, 3-
glycidoxypropyl dimethoxysilane, 3-giycidoxypropyl—methyldiethoxysilane, 3-
glycidyloxypropyltrimethoxy silane, or combinations thereof. In certain embodiments, 3-
giycidyloxypropyltrimethoxysiiane may be used as an on er in the hybrid
poiyurea-polyurethane header composition. The amount of adhesion promoter used
within the hybrid poiyurea—poiyurethane header composition
may range from about 0.1 to
about 0.8 t by weight of the header composition.
Viscosity depressants may aiso be used within the header material to reduce the
viscosity and improve flow during processing. These additives are also capable of
improving the mixing of high viscosity polyols with low viscosity isocyanates. In certain
W0 2013I083694
embodiments, a er may function as a ity depressant. Suitable es of
viscosity depressants which may be used within the ea-polyurethane hybrid header
material formulation include but are not limited to low molecular weight glycol ethers,
dimethyl AGS esters and propylene carbonate, Viscobyk® 4015 commercially ble
from BYK Chemie GMBH (Wesel, Germany) and Solsperse® hyperdispersants
commercially available from The Lubrizoi Corporation (Wickliffe, 0H). In certain
embodiments, the hybrid polyurea-polyurethane hybrid header material formulation
includes a polyoxyalkylene derivative viscosity depressant. In certain. embodiments, the
polyoxyalkylene derivative viscosity depressant comprises from about 30 to about 60
weight percent polyoxyalkylenes, from about 30 to about 60 weight percent triethylene
glycol monobutyl ether, and from about 10 to about 30 weight t of an oligomer of
alkylene glycol. A suitable but non-limiting example of a viscosity depressant which
may be ed within the hybrid polyurea-polyurethane header composition
formulation is BYK-P 99l5 commercially available by BYK Chemie GMBl—l (Wesel,
Germany). The amount of viscosity depressant used within the hybrid eapolyurethane
header composition may range from about 0 to about 2.5 percent by weight
of the header composition.
UV stabilizers may also be used within the header material, including the hybrid
polwrea—polyurethane header composition formulation. UV stabilizers may comprise 2-
(2'-hydroxyphenyl)benzotriazoles, commercially available under the trademark Ciba®
Tinuvin® 328 from BASF SE (Ludwigshafen, Germany); 2~hydroxybenzophenones such
as Methanone, [241y'droxy(octyloxylphenyljphenyl, commercially available under the
trademark Ciba® Chimassorb® 8i from BASF SE (Ludwigshafen, Germany); esters of
substituted and unsubstituted benzoic acids; acrylates; nickel compounds; Hindered
Amine Light Stabilizers ") such as methyl 1,2,2,6,6'pentamethyl~4-piperidyl
sebacate, bis(1,2,2,6,6-pentamethylpiperidyl)sebaCate + methyl l,2,2,6,6-pentamethyl-
4-piperidyl sebacate, bis(2,2,6,6—tetramethyl—4-piperidyl)sebacate, polymer of
butanedioic acid dimethylester with 4-hydroxy—2,2,6,6-tetramethylpiperidine ethanol,
bis(l,2,2,6,6—pentamethylpiperidinyl)butyl~2-(4-hydroxy-3,S-di-tert-
butylbenzyl)propanedioate; ally hindered amines, oxanilides; 2-{2—hydroxyphenyl)-
W0 20131083694
tria2ines; and mixtures thereof. A le but non-limiting example of a UV
stabilizer which may be used in the polyurea-polyurethane header composition is
PolyStab 100 commercially available from The Hanson Group LLC (Duluth, GA). In
certain embodiments, UV stabilizer used within the hybrid poiyurea-polyurethane header
composition is methyl l52,2,6,6-pentameti‘ryl~4—piperidyl sebacate. The amount of UV
stabilizers used within the hybrid poiyurea-polyurethane header composition may
range
from about 0.1 to about 2.0 percent by weight of the header composition.
In certain embodiments, the hybrid polyurea-polyurethane header composition has
a compressive strength after 24 hours cure ranging from about 1400 to about 3500 psi
using the 2“ x 2" x 2" cube method according to ASTM C 579 Method B. The 24 hour
and 1 week compressive strength values may vary depending on the mass of the header
and the ambient temperature when the header material is applied. in certain
embodiments, the hybrid polyurea-polyurethane header composition (with aggregate) has
a compressive strength after 1 week cure ranging from about 2600 to about 3700 psi.
The hybrid ea‘polyurethane header composition exhibits an excellent
tensile th. Elongation of the header material before it breaks according to ASTM D
638 must be at a minimum of 200%. The present header material exceeds this value and
in certain embodiments, the hybrid polyurea—polyurethane header composition was tested
at 225% elongation before break.
The hybrid polyurea-polyurethane header composition possesses sufficient impact
resistance and passes the dart/cube impact test at 32°F (0°C)= -20°F (—29°C) and 158°F
(70°C) according to ASTM test formerly known as ASTM D 3029.
The hybrid polyurea~polyurethane header composition without the on of low
re content aggregate has an initial Brookfield viscosity g from about 400 to
about 800 cps at 75°F d on Spindle #3 at l0 rpm). The addition of low moisture
content aggregate to the hybrid polyurea-poiyurethane header composition increases the
viscosity further.
Also provided is a method of ng a header material within an expansionjoint
system for an infrastructure construction. The method comprises g a first
component of the header composition from a first storage ner to a mix chamber
through a first conduit and pumping a second component of the header composition from
a second storage container to a mix chamber through a second conduit. The first and
second components of the header composition are then mixed within the mix chamber to
initiate a reaction between the first and second components to form the header
composition. In certain embodiments, the first component within the first storage
ll) ner includes the pclyol material and the second ent within second storage
container includes an isocyanate material. In other ments, the first components
within the first storage container include a polyol and an amine which when mixed with
the isocyanate from the first storage container, form a polyurea-polyurethane hybrid
header material. Additional components which may include but are not d to at least
one of catalysts, pigments, defoamers, moisture scavenging molecules, moisture
sensitivity reducers, adhesion promoters, viscosity depressants, and UV absorbers may be
added to the first storage container as first components in n embodiments.
The mixing chamber may comprise a mechanical mixing chamber or a static
mixing chamber. In certain embodiments, the mix chamber is a static mix r. After
the ents comprising the header material formulation are mixed within the mix
head, the header material e may be applied to the recessed portions of the adjacent
structural members. Methods of ng the header material mixture to the recessed
portions of the adjacent structural members include allowing the material to flow from
the mix head through a third conduit containing a plurality of apertures (e.g., a tube hose
that contains through holes) placed within the expansion joint header or allowing the
material to flow through an aperture (cg, a nozzle) within a movable mix head.
In embodiments where a third conduit is used, such as a tube hose, the third
t may be detachable from the mix head after application of the header material
allowing the third conduit to remain within the recessed portion of the structural member
after application of the header material.
in certain embodiments, the movable mix head may be moved manually or
mechanically along the length of the expansion joint allowing for uniform application of
the header material.
An illustrative example of an apparatus which may be used to apply a header
material to an expansion joint system for an infrastructure uction is depicted in Fig.
l. The apparatus 10 comprises a first container 12 and a second ner 14 for storing
the two (2) liquid components of the header material. For instance, in n
embodiments, the components of the header material may be divided into two parts,
namely Part A, comprising a polyol and optionally, at least one amine and Part 8,
comprising an isocyanate. Part A of the header material is stored in the first container 12
and Part B of the header material is stored in the second container 14. The ratio of Part A
within the first storage container 12 to Part B within the second storage container 14 is
about 2:]. Part A of the header material flows through a first conduit 16 from an aperture
13 in the first storage container 12 and Part B of the header material flows through a
second conduit 18 from an aperture 15 in the second storage container 14. Part A of the
2O header material flows through the first conduit i6 by gravity feed to a first pump 20 and
Part B of the header material flows through the second conduit 18 by y feed to a
second pump 22. The first pump 20 pumps the Part A header material h the first
conduit 16 to manifold 24 and into a static mix head 28. Likewise, the second pump 22
pumps the Part B header material through the second conduit 18 to manifold 24 and into
the static mix head 28. Electronically controlled and calibrated s 21 and 23
uously monitor and adjust the amount of al delivered to manifold 24 for Part
A and Part B. Viscosity of Part A and Bart B varies due to s in ambient air
temperature. Viscosity values generally get higher as air temperature decreases. Devices
21 and 23 provide for operation of the expansion joint header apparatus in a wide
range
of ambient air atures to ensure :. proper mix ratio is achieved. Manifold 24
contains internal chambers 25 and 26 to keep Part A and Part B separated until both Part
W0 2013;083694
A and Part B materials depart into static mix head 28. Part A and Part B of the header
material are mixed in the static mix head 28 to form the header material. The header
material exits the static mix head 28 through an end nozzle 42. The expansion joint
system 36 is at least partially pre-filled prior to application of the header material with a
low moisture content aggregate 38 for further rcement.
Another illustrative e of an apparatus which may be used to apply a header
material to an expansion joint system for an infrastructure construction is depicted in
The apparatus 40 comprises a first storage ner 12 and a second storage
container 14 for storing two (2) liquid components of the header material. For instance,
in certain embodiments, the components of the header material may be divided into two
parts, namely Part A, comprising a polyoi and optionally, at least one amine and Part B,
comprising an isocyanate. Part A of the header material is stored in the first storage
container 12 and Part B of the header material is stored in the second container 14. The
ratio of Part A within the first storage container 12 to Part B within the second storage
ner M is about 2:1. Part A of the header material flows through a first conduit 16
from an re 13 in the first e container 12 and Part B of the header al
flows through a second conduit ill from an aperture 15 in the second storage container
14. Part A of the header material flows through a first conduit 16 from the first storage
container 12 and Part B of the header material flows through a second conduit 18 from
the second storage container 14. Part A of the header al flows through the first
conduit 16 by gravity feed to a first pump 20 and Part B of the header material flows
through the second conduit 18 by gravity feed to a second pump 22. The first pump 20
pumps the Part A header material through the first conduit 16 to manifold 24 and into a
static mix head 28. Likewise: the second pump 22 pumps the Part B header al
through the second conduit 18 to ld 24 and into the static mix head 28.
Electronically controlled and calibrated devices 2] and 23 continuously monitor and
adjust the amount of material delivered to manifold 24 for Part A and Part B. Viscosity
of Part A and Part B varies due to changes in ambient air temperature. Viscosity values
generally get higher as air temperature decreases. Devices 21 and 23 provide for
operation of the expansion joint header apparatus in a wide range of ambient air
WO 2013083694
temperatures to ensure a proper mix ratio is achieved. ld 24 contains internal
chambers 25 and 26 to keep Part A and Part B separated until both Part A and Part B
materials depart into static mix head 28. Part A and Part B of the header material are
mixed in the static mix head 28 to form the header material. The header material exits
the static mix head 28 through a third conduit 30 having a plurality of apertures 32 (e.g.,
tube or hose with pro-drilled through holes). The third t 30 is inserted into an
expansion joint header 36 having been treated with a layer of low moisture content
ate 38. The header material flows from the static mix head 28 into the third
conduit 30 by means of end nozzle 42, and exits the third conduit 30 into the ion
joint system 36 through apertures 32 found within the third conduit 30. The expansion
joint header 36 is at least lly pre~filled prior to application of the header al
with low moisture content ate 38 for further reinforcement.
An illustrative embodiment of an expansion joint system is shown in 3 depicts an expansion joint system 70 comprising a first structural member 52 and a
second structural member 54. The first and second ural members 52 and 54 contain
blockouts (i.e., recessed sections) 56 and 58 respectively. An expansion joint comprised
of steel shapes 72 and 74 and rubber seal material 78 is placed into the blockout area to
seal the gap between the adjacent first and second ural members 52 and 54. The
blackouts 56 and 58 are filled with a header material 62 and 64 to attach and make
watertight the expansion joint to the structural members. The blackouts 56 and 58 are
filled with a header material 62 and 64. The blackouts 56 and 58 each further contain a
first channel 72 and a second channel 74 which are embedded within the header material
62 and 64 present within blockouts 56 and 58. The channels 72 and 74 are stabilized
within the header material 62 and 64 by an anchor 76 (not shown for channel 72).
An illustrative embodiment of an ion joint system is shown in depicts an expansion joint system 80 comprising a first structural member 52 and a
second structural member 54. The first and second structural members 52 and 54 contain
blackouts (i.e., recessed sections) 56 and 58 reSpectively. The blockouts 56 and 58 are
filled with a header material 62 and 64. A first flange 82 and a second flange 84 attaches
a glandular seal 86 to uts 56 and 58 respectively.
An rative embodiment of an expansion joint system is shown in depicts an expansion joint system 90 comprising a. first structural member 52 and a
second structural member 54. The first and second structural members 52 and 54 contain
blackouts (i.e., recessed sections) 56 and 58 respectively. The blockouts 56 and 58 are
filled with a header material 62 and 64. A first flange 82, a second flange 84, a first
anchor 92 and a second anchor 94 attaches a glandular seal 96 to blockouts 56 and 58
respectively.
An illustrative embodiment of an expansion joint system is shown in FlG. 6. depicts an expansion joint system 100 sing a first structural member 52 and a
second structural member 54. The first and second structural members 52 and 54 contain
blockouts (i.e., recessed sections) 56 and 58 respectively. The blockouts 56 and 58 are
filled with a header material 62 and 64. A first flange 82 and a second flange 84 attaches
a slip seal 102 to blockouts 56 and, 58 respectively.
An illustrative embodiment of an expansion joint system is shown in 7 depicts an expansion joint system 50 comprising to a first structural member 52 and a
second structural member 54. The first and second ural members 52 and 54 contain
blockouts (i.e., recessed sections) 56 and 58 respectively. The expansion joint 66
includes a backing rod 60. The blockouts 56 and 58 are filled with a header al 62
and 64 to attach and make watertight the expansion joint 66 to the ural members 52
and 54.
An illustrative embodiment of an ionjoint system is shown in depicts an expansion joint system 200 comprising to a first structural member 202 and a
second structural member 204. The first and second structural members 202 and 204
contain blockouts (i.e., recessed sections) 206 and 208 respectively. The blockouts 206
and 208 are filled with a header al 210 and 212. A preformed expansion joint seal
W0 20131083694
214 is positioned in the gap 216 between the first structural member 202 and the second
structural member 204. The preformed seal 214 includes grooves or channels 218, 220.
An adhesive material 222, 224 is d to the grooves 218, 220 in order to adhesively
bond the preformed seal 214 to the cured header material 210, 212. Without limitation,
the perform seal 214 may comprise a blown low density closed cell ethylene Vinyl acetate
polyethylene copolymer.
An illustrative embodiment of an expansion joint system is shown in depicts an ion joint system 300 comprising to a first structural member 302 and a
second structural member 304. The first and second structural members 302 and 304
contain blockouts (i.e., recessed sections) 306 and 308 respectively. The blockouts 306
and 308 are filled with a header material 3l0 and 312. A preformed ion joint seal
314 is positioned in the gap 316 between the first structural member 302 and the second
structural member 304. The preformed seal 314 is adhesively bonded to the cured header
al 310, 312 with a suitable adhesive 318, 320. Without limitation, the perform seal
314 may comprise a preformed silicone strip seal which is bonded in place with a silicone
Thusa the ion joint comprising first and second adjacent structural members
having a gap defined between said ural members; a recess formed in the surfaces of
said first and second adjacent structure sections; and a hybrid poiyurea-polyurethane
composition d within said recess of at least one of said first and second adjacent
structural members.
The expansion joint of the above embodiment may further comprise a seal
ing across said gap.
The expansion joint of any of the above embodiments, wherein said polyurea
component of the hybrid polyurea-polyurethane blend comprises the reaction product of
an amine and a polyol, and wherein the polyurethane component of the hybrid polyurea»
polyurethane blend comprises the reaction product of an isocyanate and a polyol.
The expansion joint of any of the above embodiments, n said isocyanate
comprises at least one of ic isoeyanates, aliphatic isocyanates, and mixtures
thereof.
The expansion joint of any of the above embodiments, wherein said aromatic
isocyanate is selected from the group consisting of methylene diphenyl diisocyanates
(MDI), toluene diisocyanates (TDD, polymeric methylene yl diisocyanate (PMDI),
p-phynyl diisocyanate (PDI), alene diisooyanate (NDI), and mixtures thereof.
The expansion joint of any of the above embodiments, n said isocyanate
comprises a ene diphenyl diisocyanate.
The expansion joint of any of the above embodiments, wherein said polyol
comprises a fatty acid ester.
The expansion joint of any of the above embodiments, wherein said fatty acid
ester is selected from the group consisting of natural fatty acid esters, tic fatty acid
esters and mixtures thereof.
The expansion joint of any of the above embodiments, wherein said natural fatty
acid esters are selected from the group consisting of canola oil, castor oil, coconut oil,
cotton seed oil, flax seed oil, hemp seed oil, jojoba oii, oiive oil, paim oil, peanut oil,
pumpkin seed oil, safflower oil, sesame oil, soybean oil, sunflower oil, and mixtures
thereof.
The ion joint of any of the above embodiments, wherein said natural fatty
acid ester comprises castor oil.
The expansion joint of any of the above embodiments, wherein said amine
comprises at least one of a monofunctionai amine, a difunctionai amine, a trifunctional
amine, or mixtures thereof.
The expansion joint of any of the above embodiments, wherein said amine
comprises two difunctional amines and a trifunctional amine.
The expansion joint of any of the above ments, wherein at least one of said
difunctional amines comprises an aromatic amine.
The expansion joint of any of the above embodiments, wherein, wherein said
aromatic amine comprises 4,4lmethylenebist-see-butyianiiine}.
The expansion joint of any of the above embodiments, wherein wherein at least
one of said difunctional amines comprises an oiigomeric diamine.
The expansion joint of any of the above embodiments, wherein said oligomeric
diamine comprises polytetramethyleneoxide—di~p«aminobenzoate.
The expansion joint of any of the above embodiments, n said trifunctional
amine comprises a polyetheramine.
The expansion joint of any of the above embodiments, wherein wherein said
poiyetheramine comprises a polyoxypropylenediamine.
The ion joint of any of the above embodiments, wherein said hybrid
polyurea-polyurethane header composition r ses at least one of a catalyst, a
t, a defoamer, a moisture scavenging molecule, a moisture sensitivity reduction
additive, an adhesion additive, a viscosity depressant, or a UV light absorption additive.
The expansion joint of any of the above ments, wherein catalyst comprises
at least one of azabicyclo[5.4.0}undec-7—ene; 1,5-diaza-bicycle[5.4.0]undecene;
or mixtures thereof.
W0 2013;083694
The expansion joint of any of the above embodiments, wherein said er
comprises a diisobutylketone; the pigment comprises carbon black; the moisture
scavenging molecule comprises a molecular sieve zeolite; the moisture sensitivity
reduction additive comprises an oxazoiidine; the adhesion additive comprises 3-
glycidyioxypropyltrimethoxysiiane; and the UV light absorber comprises methyl
1,2,2,6,6-pentamethyl~4—piperidyl sebacate.
The expansion joint of any of the above embodiments, wherein a defoamer
functions as a viscosity depressant.
The expansion joint of any of the above embodiments, wherein the viscosity
sant comprises from about 30 to about 60 weight percent yalkylene, from
about 30 to about 60 weight percent triethyiene giycoi monobutyl ether, and from about
to about 30 weight t of an oligamer of alkylene glycol.
The ion joint of any of the above embodiments, wherein the aggregate
comprises an aggregate having a moisture content of less than 0.1%.
The expansion joint of any of the above embodiments, wherein about 50% to
about 60% of the volume of the recesses are fiiled with the low moisture content
aggregate and about 40% to about 50% oi'the volume of the ion joint is filled with
a header materiai.
The expansion joint of any of the above embodiments, wherein said hybrid
poiyurea-polyurethane header composition has an elongation at break of about 225%.
The ion joint of any of the above embodiments, wherein the hybrid
polyurea-poiyurethane header composition has a cure time. to fuii ion of from about
4 to about it) minutes at 75°F (24°C).
W0 2013f083694
The expansion joint of any of the above embodiments, wherein the hybrid
polyurea-polyurethane header composition has a cure time to full geliation of about i to
about 3 hours at 75°F (24°C).
Thus, the expansion joint comprises first and second adjacent structural members
having a gap defined. between said structural s; a recess formed in the surfaces of
said first and second adjacent structural members; and a header composition of any one
of the above embodiments d within said recess of at least one of said first and
second adjacent structural members, said header composition comprising a polymer
composition and a low moisture content aggregate;
Thus, the method of applying a header composition in an expansion joint
comprises introducing at least one isocyanate from a first storage container to a mix
chamber through a first conduit, introducing at least one polyol and an amine from a
second e container to the mix chamber through a second conduit, mixing the
isocyanate, the polyol and the amine in the mix chamber to form the header ition
of any one of the above embodiments and applying the hybrid polyurea-polyurethane
header composition into a recess formed in an expansion joint header through a movable
output.
The method of the above ment; wherein the first component is introduced
from the first e container into the mix r by pumping and the second
component is introduced from the second storage container into the mix chamber by
pumping.
The method of any one ofthe above embodiments, wherein the amount ofthe first
component and the amount of the second component pumped into the mix chamber is
continuously monitored and adgusted to ensure a proper mix ratio is achieved.
The method of any one of the above ments, further comprising positioning
a conduit having a plurality of apertures within a recess formed in the surface of at least
one of adjacent first and second structural members; and applying the mixture into a
recess formed in an expansion joint header.
While the present disclosure has been described in connection with various
illustrative embodiments, it is to be understood that other similar embodiments may be
used or modifications and additions may be made to the described ments for
performing the same function disclosed herein without deviating there from. The
embodiments described above are not necessarily in the alternative, as various
embodiments may be combined to provide the desired characteristics. ore, the
present disclosure should not be limited to any single embodiment, but rather construed
in breadth and scope in accordance with the recitation of the ed claims.
WE
Claims (26)
1. An expansion joint comprising: first and second adjacent ural members having a gap defined between said structural members; a recess formed in the es of said first and second adjacent structure sections; and a hybrid polyurea—polyurethane ition d within said recess of at least one of said first and second adjacent structural members.
2. The expansion joint of claim 1, r comprising a seal extending across said gap.
3. The expansion joint of claim 1, wherein said polyurea component of the hybrid 15 polyurea-polyurethane blend comprises the reaction product of an amine and a polyol, and wherein the polyurethane component of the hybrid polyurea-polyurethane blend comprises the reaction product of an isocyanate and a polyol.
4. The ion joint of claim 3, wherein said isocyanate comprises at least one of 20 aromatic isocyanates, aliphatic isocyanates, and mixtures f.
5. The expansion joint of claim 4, wherein said aromatic isocyanate is selected from the group consisting of methylene diphenyl diisocyanates (MDT), toluene diisocyanates (TDI), ric methylene diphenyl diisocyanate (PMDI), p—phynyl diisocyanate (PDI), 25 naphthalene diisocyanate (NDI), and mixtures thereof.
6. The expansion joint of claim 5, wherein said isocyanate comprises a methylene diphenyl diisocyanate and wherein said polyol comprises a fatty acid ester.
7. The expansion joint of claim 6, n said fatty acid ester is selected from the group consisting of natural fatty acid , synthetic fatty acid esters and mixtures thereof.
8. The ion joint of claim 7, wherein said natural fatty acid esters are selected from the group consisting of canola oil, castor oil, coconut oil, cotton seed oil, flax seed oil, hemp seed oil, jojoba oil, olive oil, palm oil, peanut oil, pumpkin seed oil, safflower oil, sesame oil, soybean oil, sunflower oil, and mixtures thereof. 10
9. The ion joint of claim 3, wherein said amine comprises at least one of a monofunctional amine, a difunctional amine, a trifunctional amine, or mixtures thereof.
10. The expansion joint of claim 9, wherein said amine comprises two difunctional amines and a trifunctional amine.
11. The ion joint of claim 10, n at least one of said tional amines comprises an aromatic amine.
12. The expansion joint of claim 10, wherein at least one of said difunctional amines 20 comprises an oligomeric e.
13. The expansion joint of claim 10, wherein said trifunctional amine comprises a polyetheramine. 25
14. The expansion joint of claim 3, wherein said hybrid polyurea-polyurethane header composition further comprises at least one of a catalyst, a pigment, a defoamer, a moisture scavenging molecule, a moisture sensitivity reduction additive, an adhesion additive, a viscosity depressant, or a UV light absorption additive. 3O
15. The expansion joint of claim 1, wherein an aggregate having a moisture content of less than 0.1% is blended with said polyurea-polyurethane header composition.
16. The expansion joint system of claim 15, wherein about 50% to about 60% of the volume of the recesses are filled with the low moisture content aggregate and about 40% to about 50% of the volume of the expansion joint is filled with a header material.
17. The expansion joint of claim 1, wherein said hybrid polyurea-polyurethane header composition is characterized by at least one of the following: (i) said header composition has an elongation at break of about 225%, (ii) said header composition has a cure time to full gellation of from about 4 to about 10 minutes at 75°F (24°C), and (iii) said header ition has a cure time to full gellation of about 1 to about 3 hours at 75°F (24°C).
18. An expansion joint sing: first and second nt ural members having a gap defined between said structural members; a recess formed in the surfaces of said first and second adjacent ural 15 members; and a header composition located within said recess of at least one of said first and second adjacent structural members, said header composition comprising a blend or mixture of a polyurea component and a polyurethane component and a low moisture content aggregate.
19. A method of ng a header composition in an ion joint comprising: ucing a first component of said header composition from a first storage container to a mix chamber through a first conduit; introducing a second component of said header composition from a second 25 storage container to the mix chamber through a second conduit; mixing said first and second components to initiate a reaction between said first and second components; and applying the mixture of said first and second components into a recess formed within the surface of at least one of first and second adjacent structural 30 members.
20. The method of claim 19, wherein the mix chamber comprises a static mix head.
21. The method of claim 19, n the first component is introduced from the first e container into the mix chamber by pumping and the second component is introduced from the second storage container into the mix chamber by pumping.
22. The method of claim 19, wherein the step of applying comprises applying the hybrid polyurea—polyurethane header composition into a recess formed in an expansion joint header through a e output. 10
23. The method of claim 19, further comprising positioning a conduit having a plurality of apertures within a recess formed in the surface of at least one of adjacent first and second structural members and ng the hybrid polyurea-polyurethane header composition into a recess formed in an expansion joint header through said conduit. 15
24. The method of any one of claims 19—23, comprising introducing at least one isocyanate from a first storage container to a mix chamber h a first t; introducing at least one polyol and an amine from a second storage container to the mix chamber h a second conduit; 20 mixing the isocyanate, the polyol and the amine in the mix chamber to form a header material; and applying the hybrid polyurea—polyurethane header material to the expansion joint through a third conduit having a plurality of apertures, wherein the third conduit is positioned within a recess formed in the surface of at least one 25 of first and second nt structural members.
25. The expansion joint according to claim 1 or 18, substantially as herein described with reference to any one of the accompanying examples and/or figures. 30
26. The method according to claim 19, substantially as herein described with reference to any one of the accompanying examples and/or figures.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161567250P | 2011-12-06 | 2011-12-06 | |
US61/567,250 | 2011-12-06 | ||
PCT/EP2012/074644 WO2013083694A2 (en) | 2011-12-06 | 2012-12-06 | Hybrid polyurea-polyurethane header composition |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ624632A NZ624632A (en) | 2015-05-29 |
NZ624632B2 true NZ624632B2 (en) | 2015-09-01 |
Family
ID=
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