WO2016096352A1 - Farbstabile nitrilkautschuke - Google Patents
Farbstabile nitrilkautschuke Download PDFInfo
- Publication number
- WO2016096352A1 WO2016096352A1 PCT/EP2015/077669 EP2015077669W WO2016096352A1 WO 2016096352 A1 WO2016096352 A1 WO 2016096352A1 EP 2015077669 W EP2015077669 W EP 2015077669W WO 2016096352 A1 WO2016096352 A1 WO 2016096352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum
- nitrile rubber
- weight
- nitrile
- range
- Prior art date
Links
- 229920000459 Nitrile rubber Polymers 0.000 title claims abstract description 161
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 238000005345 coagulation Methods 0.000 claims abstract description 40
- 230000015271 coagulation Effects 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 28
- 238000005406 washing Methods 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 50
- 150000001993 dienes Chemical class 0.000 claims description 46
- 239000000178 monomer Substances 0.000 claims description 46
- -1 aluminum halide Chemical class 0.000 claims description 43
- 229920000126 latex Polymers 0.000 claims description 37
- 150000003839 salts Chemical class 0.000 claims description 32
- 239000004816 latex Substances 0.000 claims description 31
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 28
- 238000006116 polymerization reaction Methods 0.000 claims description 28
- 238000001556 precipitation Methods 0.000 claims description 27
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 21
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 19
- 241001441571 Hiodontidae Species 0.000 claims description 17
- 150000002825 nitriles Chemical class 0.000 claims description 17
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 12
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 12
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 11
- 239000004971 Cross linker Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 150000001450 anions Chemical class 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 235000011126 aluminium potassium sulphate Nutrition 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- BPLYVSYSBPLDOA-GYOJGHLZSA-N n-[(2r,3r)-1,3-dihydroxyoctadecan-2-yl]tetracosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@H](CO)[C@H](O)CCCCCCCCCCCCCCC BPLYVSYSBPLDOA-GYOJGHLZSA-N 0.000 claims description 2
- 229940050271 potassium alum Drugs 0.000 claims description 2
- 235000011127 sodium aluminium sulphate Nutrition 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229920001971 elastomer Polymers 0.000 description 47
- 239000005060 rubber Substances 0.000 description 47
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 34
- 239000011734 sodium Substances 0.000 description 23
- 239000003995 emulsifying agent Substances 0.000 description 21
- 150000002148 esters Chemical class 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 15
- 238000005984 hydrogenation reaction Methods 0.000 description 15
- 239000000047 product Substances 0.000 description 14
- 239000000654 additive Substances 0.000 description 13
- 229910052708 sodium Inorganic materials 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 12
- 239000002253 acid Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 11
- 235000014113 dietary fatty acids Nutrition 0.000 description 11
- 239000000194 fatty acid Substances 0.000 description 11
- 229930195729 fatty acid Natural products 0.000 description 11
- 229910052717 sulfur Chemical group 0.000 description 11
- 150000002763 monocarboxylic acids Chemical class 0.000 description 10
- 229920000642 polymer Polymers 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 125000005907 alkyl ester group Chemical group 0.000 description 8
- 125000000129 anionic group Chemical class 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 8
- 150000003254 radicals Chemical class 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 7
- 230000003712 anti-aging effect Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000003999 initiator Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 7
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 6
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 6
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003426 co-catalyst Substances 0.000 description 6
- 150000005690 diesters Chemical class 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 6
- 150000002989 phenols Chemical class 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 150000001356 alkyl thiols Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000005649 metathesis reaction Methods 0.000 description 5
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 5
- 239000007800 oxidant agent Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 5
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 5
- 229960002447 thiram Drugs 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 4
- UEZWYKZHXASYJN-UHFFFAOYSA-N cyclohexylthiophthalimide Chemical compound O=C1C2=CC=CC=C2C(=O)N1SC1CCCCC1 UEZWYKZHXASYJN-UHFFFAOYSA-N 0.000 description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 4
- 239000012990 dithiocarbamate Substances 0.000 description 4
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 4
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052707 ruthenium Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 3
- XSZYESUNPWGWFQ-UHFFFAOYSA-N 1-(2-hydroperoxypropan-2-yl)-4-methylcyclohexane Chemical compound CC1CCC(C(C)(C)OO)CC1 XSZYESUNPWGWFQ-UHFFFAOYSA-N 0.000 description 3
- CPGFMWPQXUXQRX-UHFFFAOYSA-N 3-amino-3-(4-fluorophenyl)propanoic acid Chemical compound OC(=O)CC(N)C1=CC=C(F)C=C1 CPGFMWPQXUXQRX-UHFFFAOYSA-N 0.000 description 3
- UDQCDDZBBZNIFA-UHFFFAOYSA-N 4-methyl-1,3-dihydrobenzimidazole-2-thione Chemical compound CC1=CC=CC2=C1NC(=S)N2 UDQCDDZBBZNIFA-UHFFFAOYSA-N 0.000 description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical class NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Chemical group 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical class C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 3
- 150000008052 alkyl sulfonates Chemical class 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 229940018560 citraconate Drugs 0.000 description 3
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 3
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000001530 fumaric acid Substances 0.000 description 3
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical group 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000000600 sorbitol Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000000346 sugar Nutrition 0.000 description 3
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical class [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 3
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 3
- 150000003467 sulfuric acid derivatives Chemical group 0.000 description 3
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 3
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- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
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- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- OQAIUHLITJGRMM-UHFFFAOYSA-N n,n-di(propan-2-yl)hydroxylamine Chemical compound CC(C)N(O)C(C)C OQAIUHLITJGRMM-UHFFFAOYSA-N 0.000 description 1
- BLCKKNLGFULNRC-UHFFFAOYSA-L n,n-dimethylcarbamodithioate;nickel(2+) Chemical compound [Ni+2].CN(C)C([S-])=S.CN(C)C([S-])=S BLCKKNLGFULNRC-UHFFFAOYSA-L 0.000 description 1
- CMAUJSNXENPPOF-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-cyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)SC1=NC2=CC=CC=C2S1 CMAUJSNXENPPOF-UHFFFAOYSA-N 0.000 description 1
- UUORTJUPDJJXST-UHFFFAOYSA-N n-(2-hydroxyethyl)prop-2-enamide Chemical class OCCNC(=O)C=C UUORTJUPDJJXST-UHFFFAOYSA-N 0.000 description 1
- KGNDVXPHQJMHLX-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)cyclohexanamine Chemical compound CO[Si](OC)(OC)CCCNC1CCCCC1 KGNDVXPHQJMHLX-UHFFFAOYSA-N 0.000 description 1
- GFSJJVJWCAMZEV-UHFFFAOYSA-N n-(4-anilinophenyl)-2-methylprop-2-enamide Chemical compound C1=CC(NC(=O)C(=C)C)=CC=C1NC1=CC=CC=C1 GFSJJVJWCAMZEV-UHFFFAOYSA-N 0.000 description 1
- HKLPOBRVSAUJSG-UHFFFAOYSA-N n-(4-anilinophenyl)prop-2-enamide Chemical compound C1=CC(NC(=O)C=C)=CC=C1NC1=CC=CC=C1 HKLPOBRVSAUJSG-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- AGVKXDPPPSLISR-UHFFFAOYSA-N n-ethylcyclohexanamine Chemical compound CCNC1CCCCC1 AGVKXDPPPSLISR-UHFFFAOYSA-N 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920000847 nonoxynol Polymers 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical class CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000002889 oleic acids Chemical class 0.000 description 1
- 229920002601 oligoester Polymers 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- QUPCNWFFTANZPX-UHFFFAOYSA-M paramenthane hydroperoxide Chemical compound [O-]O.CC(C)C1CCC(C)CC1 QUPCNWFFTANZPX-UHFFFAOYSA-M 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000005385 peroxodisulfate group Chemical group 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-N peroxydisulfuric acid Chemical class OS(=O)(=O)OOS(O)(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- FCQRKDSALKMOGU-UHFFFAOYSA-K rhodium(3+);triphenylphosphane;trichloride Chemical compound Cl[Rh](Cl)Cl.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 FCQRKDSALKMOGU-UHFFFAOYSA-K 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- QBERHIJABFXGRZ-UHFFFAOYSA-M rhodium;triphenylphosphane;chloride Chemical compound [Cl-].[Rh].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 QBERHIJABFXGRZ-UHFFFAOYSA-M 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical class [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- CEAYCPAHSNTNGO-UHFFFAOYSA-M sodium;ethane-1,2-diamine;acetate Chemical compound [Na+].CC([O-])=O.NCCN CEAYCPAHSNTNGO-UHFFFAOYSA-M 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000003375 sulfoxide group Chemical group 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- APEJMQOBVMLION-VOTSOKGWSA-N trans-cinnamamide Chemical compound NC(=O)\C=C\C1=CC=CC=C1 APEJMQOBVMLION-VOTSOKGWSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- WLPUWLXVBWGYMZ-UHFFFAOYSA-N tricyclohexylphosphine Chemical compound C1CCCCC1P(C1CCCCC1)C1CCCCC1 WLPUWLXVBWGYMZ-UHFFFAOYSA-N 0.000 description 1
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- UWSYCPWEBZRZNJ-UHFFFAOYSA-N trimethoxy(2,4,4-trimethylpentyl)silane Chemical compound CO[Si](OC)(OC)CC(C)CC(C)(C)C UWSYCPWEBZRZNJ-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- NOYPYLRCIDNJJB-UHFFFAOYSA-N trimetrexate Chemical compound COC1=C(OC)C(OC)=CC(NCC=2C(=C3C(N)=NC(N)=NC3=CC=2)C)=C1 NOYPYLRCIDNJJB-UHFFFAOYSA-N 0.000 description 1
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- GRPURDFRFHUDSP-UHFFFAOYSA-N tris(prop-2-enyl) benzene-1,2,4-tricarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C(C(=O)OCC=C)=C1 GRPURDFRFHUDSP-UHFFFAOYSA-N 0.000 description 1
- XHGIFBQQEGRTPB-UHFFFAOYSA-N tris(prop-2-enyl) phosphate Chemical compound C=CCOP(=O)(OCC=C)OCC=C XHGIFBQQEGRTPB-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 229940070710 valerate Drugs 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- DRKOTOCDZAUOFY-UHFFFAOYSA-L zinc;n,n-bis(7-methyloctyl)carbamodithioate Chemical compound [Zn+2].CC(C)CCCCCCN(C([S-])=S)CCCCCCC(C)C.CC(C)CCCCCCN(C([S-])=S)CCCCCCC(C)C DRKOTOCDZAUOFY-UHFFFAOYSA-L 0.000 description 1
- XKMZOFXGLBYJLS-UHFFFAOYSA-L zinc;prop-2-enoate Chemical compound [Zn+2].[O-]C(=O)C=C.[O-]C(=O)C=C XKMZOFXGLBYJLS-UHFFFAOYSA-L 0.000 description 1
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/12—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with nitriles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
- C08C1/15—Coagulation characterised by the coagulants used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/20—Incorporating sulfur atoms into the molecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/14—Treatment of polymer emulsions
- C08F6/22—Coagulation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
- C08L9/04—Latex
Definitions
- the invention relates to a novel aluminum-containing nitrile rubber, a process for its preparation, vulcanizable mixtures based on this nitrile rubber, and a process for
- Nitrile rubbers also abbreviated to "NBR”, are understood to mean rubbers which are copolymers or terpolymers of at least one ⁇ , ⁇ -unsaturated nitrile, at least one conjugated diene and optionally one or more further copolymerisable
- NBR is prepared by emulsion polymerization, initially obtaining an NBR latex.
- the NBR solid is isolated from this latex by coagulation with salts or acids.
- salts or acids By coagulation of latices with metal salts, it is known that monovalent metal ions, e.g. in
- JP 2006 / 063247A2 describes a compound of an ethylene- ⁇ -olefin copolymer and a nitrile rubber.
- the nitrile rubber is prepared by emulsion polymerization and the resulting latex is precipitated with aluminum sulfate at a pH of less than or equal to 6.
- JP 5078427A2 describes the preparation of resins by graft polymerization in emulsion.
- acrylates and acrylonitrile are polymerized in the presence of an NBR latex to obtain the desired resin.
- These latexes are coagulated by a combination of aluminum and magnesium salts, the precipitate having a pH in the range of 2 to 7 and the
- JP S46 / 039477 discloses a flocculation method for synthetic rubber latex in which basic aluminum chloride and basic aluminum sulfate added to the rubber latex are added singly or as a mixture. It is stated that no special treatment is required when using said coagulants. Since the coagulants can be easily diluted in water, they can be poured into the latex in any amount diluted in water.
- a process for the radical copolymerization of butadiene and acrylonitrile in emulsion which has a special, suitably computer-aided dosing program for the monomers and the molecular weight regulator, such as. tert-dodecylmercaptan, is controlled and in which the latices obtained are worked up by coagulation in an acidic medium to the solid rubber.
- the molecular weight regulator such as. tert-dodecylmercaptan
- NBR copolymers having 10-30% by weight of acrylonitrile are said to have good elasticity and low temperature properties combined with increased swelling resistance and advantageous processability. Measures by which an influence on the stability of the nitrile rubber is possible, in particular for aluminum precipitations, can not be deduced from the teaching of this patent.
- EP-A-0 692 496, EP-A-0 779 301 and EP-A-0 779 300 each describe nitrile rubbers which have in common that they contain 10-60% by weight of unsaturated nitrile and a Mooney Have viscosity in the range of 15-150 or according to EP-A-0 692 496 of 15-65 and each have at least 0.03 mol of a Ci2-Ci6-alkylthio group per 100 mol of monomer units, said alkylthio group at least three contains tertiary C atoms and a sulfur atom which is bonded directly to at least one of the tertiary C atoms.
- the NBR preparation is carried out in each case in the presence of a correspondingly structured Ci2-Ci6-alkylthiol as molecular weight regulator, which acts as a "chain transfer agent” and is thus incorporated as an end group in the polymer chains.
- the production process is characterized in that that only 30-80 wt.% Of the total amount of monomer used at the start of polymerization and the remaining amount of monomer is added only at a conversion of the polymerization of 20-70 wt.%.
- the nitrile rubbers according to EP-A-0 779 301 are stated to have 3-20% by weight of a low molecular weight fraction having a number average molecular weight M n of less than 35,000.
- the process for their preparation differs from that of EP-A-0 692 496 in that only 10-95% by weight of the alkylthiol are mixed into the monomer mixture before the polymerization and the remaining amount of the alkylthiol only when a Polymerization conversion of 20-70 wt.%> Is added.
- any coagulants can be used.
- inorganic coagulants calcium chloride and aluminum chloride are mentioned and used.
- the focus is on nitrile rubbers that are substantially halogen-free and are obtained by performing the latex coagulation in the presence of a nonionic surfactant and using halogen-free metal salts such as aluminum sulfate, magnesium sulfate, and sodium sulfate.
- halogen-free metal salts such as aluminum sulfate, magnesium sulfate, and sodium sulfate.
- Detailed parameters for the precipitation of the latex and the subsequent required washing of the rubber crumb are not given.
- Nothing is said about the stability of an Al-precipitated rubber as a function of the pH values in the precipitation and wash.
- the object of the present invention was therefore to provide aluminum salt precipitated nitrile rubbers which predictably good color stability and a have a certain aluminum content and at the same time have very good processing properties and a good vulcanization profile.
- the desired low-salt and color-stable nitrile rubbers, vulcanizable mixtures based thereon and vulcanizates based thereon having excellent vulcanizate properties are obtained when the precipitation of the nitrile rubber latexes obtained after the polymerization is maintained under special conditions by means of aluminum salts in the acid and the subsequent wash the rubber crumb is made in the basic.
- the present invention thus relates to a nitrile rubber which contains repeating units of at least one ⁇ , ⁇ -unsaturated nitrile monomer and at least one conjugated diene monomer and which has an aluminum index E according to the general formula (I) of less than or equal to 35.0 ppm / MU on the nitrile rubber, with
- [Aluminum] means the aluminum content of the nitrile rubber in ppm and
- Mooney Viscosity represents the Mooney Viscosity (ML 1 + 4 at 100 ° C) value of the nitrile rubber expressed in Mooney units (MU).
- the aluminum content "[aluminum]" is determined by inductively coupled plasma-optical emission spectrometry (OES) at a wavelength of 309.271 nm against acid matrix-adapted calibration solutions, and the following method has been used to determine the aluminum content 0.5 g of the nitrile rubber are digested in the platinum crucible by dry ashing at 550 ° C., followed by dissolution of the ash in hydrochloric acid.
- inductively coupled plasma - optical emission spectrometry at a wavelength of 309.271nm against calibration solutions adapted to acid matrix
- concentrations of the sample solutions for the wavelengths used will be in the linear range Calibration adapted (B. Welz "Atomic Absorption Spectrometry", 2nd Ed., Verlag Chemie, Weinheim 1985, p.395).
- the nitrile rubbers according to the invention have an aluminum index E according to the general formula (I), less than or equal to 35.0 ppm / MU, preferably in the range from 3 ppm / MU to less than or equal to 35 ppm / MU, particularly preferably in the range from 5 ppm / MU to less than 35 ppm / MU and very particularly preferably in the range from 7 ppm / MU to less than 35 ppm / MU, based on the nitrile rubber.
- an aluminum index E according to the general formula (I), less than or equal to 35.0 ppm / MU, preferably in the range from 3 ppm / MU to less than or equal to 35 ppm / MU, particularly preferably in the range from 5 ppm / MU to less than 35 ppm / MU and very particularly preferably in the range from 7 ppm / MU to less than 35 ppm / MU, based on the nitrile
- the nitrile rubbers of the invention have the desired very good processing behavior in the form of a considerable scorch safety and show good optical
- the scorch safety can be measured by the scorching behavior and the scorching time t 5 according to DIN53523.
- the scorching time t 5 describes the time in minutes from the beginning of the measurement to the Mooney viscosity increase by 5 Mooney units above the viscosity minimum.
- the present invention further provides a process for the preparation of nitrile rubbers by emulsion polymerization of at least one ⁇ , ⁇ -unsaturated nitrile monomer and at least one conjugated diene monomer, characterized in that
- the subsequent washing of the nitrile rubber is carried out at a pH in the range from 6 to 12, preferably from 6.25 to 11, more preferably from 6.5 to 10.5 and in particular from 6.75 to 10.5.
- Further objects of the present invention are furthermore a vulcanizable mixture containing the nitrile rubber according to the invention, a process for the preparation of this vulcanizable mixture, vulcanizates based on this vulcanizable mixture and a process for the preparation of such vulcanizates.
- the nitrile rubbers according to the invention which are optionally hydrogenated, have repeating units of at least one ⁇ , ⁇ -unsaturated nitrile, at least one conjugated diene and optionally one or more further copolymerizable monomers.
- the conjugated diene in nitrile rubber can be of any nature. Preference is given to using (C 4 -C 6) conjugated dienes. Particular preference is given to 1,2-butadiene, 1,3-butadiene, isoprene, 2,3- Dimethyl butadiene, piperylene or mixtures thereof. Particular preference is given to 1,3-butadiene and isoprene or mixtures thereof. Very particular preference is 1, 3-butadiene.
- ⁇ -unsaturated nitrile may be used any known ⁇ , ⁇ -unsaturated nitrile, (C3-C5) are preferably -a, ß-unsaturated nitriles such as acrylonitrile, methacrylonitrile, ethacrylonitrile or mixtures thereof. Particularly preferred is acrylonitrile.
- a particularly preferred nitrile rubber is a copolymer of acrylonitrile and 1,3-butadiene.
- no nitrile rubbers grafted using monomers, in particular acrylates, are used.
- Examples of further copolymerizable termonomers are aromatic vinyl monomers, preferably styrene, ⁇ -methylstyrene and vinylpyridine, fluorine-containing vinyl monomers, preferably fluoroethyl vinyl ether, fluoropropylvinyl ether, o-fluoromethylstyrene, vinyl pentafluorobenzoate, difluoroethylene and tetrafluoroethylene, or else N- (4-anilinophenyl) acrylamide , N- (4-anilinophenyl) methacrylamide,
- carboxy-containing, copolymerizable termonomers can be used as further copolymerizable termonomers, for example ⁇ , ⁇ -unsaturated monocarboxylic acids, their esters, ⁇ , ⁇ -unsaturated dicarboxylic acids, their mono- or diesters or their corresponding anhydrides or amides.
- Acrylic acid and methacrylic acid may preferably be used as ⁇ , ⁇ -unsaturated monocarboxylic acids.
- esters of ⁇ , ⁇ -unsaturated monocarboxylic acids preferably their alkyl esters and alkoxyalkyl esters.
- Alkyl esters, in particular CpCig alkyl esters of the ⁇ , ⁇ -unsaturated monocarboxylic acids are particularly preferred, alkyl esters are particularly preferred, CpCig alkyl esters of acrylic acid or methacrylic acid, in particular methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, tert-butyl acrylate, 2-ethylhexyl acrylate, n-dodecyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and 2-ethylhexyl methacrylate.
- alkoxyalkyl esters of the ⁇ , ⁇ -unsaturated monocarboxylic acids particularly preferably alkoxyalkyl esters of acrylic acid or of methacrylic acid, in particular C 2 -C 12 -alkoxyalkyl esters of acrylic acid or of methacrylic acid, very particularly preferably methoxymethyl acrylate, methoxyethyl (meth) acrylate and ethoxyethyl (meth) acrylate.
- alkyl esters such as aforementioned, with alkoxyalkyl, for example in the form of the aforementioned.
- cyanoalkyl acrylate and cyanoalkyl methacrylate in which the C atom number of the cyanoalkyl group is 2-12, preferably ⁇ -cyanoethyl acrylate, ⁇ -cyanoethyl acrylate and cyanobutyl methacrylate.
- hydroxyalkyl acrylates and hydroxyalkyl methacrylates in which the C atom number of the hydroxyalkyl groups is 1-12, preferably 2-hydroxyethyl acrylate, 2-
- ⁇ , ⁇ -unsaturated dicarboxylic acids preferably maleic acid, fumaric acid, crotonic acid, itaconic acid, citraconic acid and mesaconic acid.
- ⁇ , ⁇ -unsaturated dicarboxylic acid anhydrides preferably maleic anhydride, itaconic anhydride, citraconic anhydride and mesaconic anhydride.
- ⁇ , ⁇ -unsaturated dicarboxylic acid mono- or diesters may, for example, be alkyl, preferably C 1 -C 10 -alkyl, in particular ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, n-pentyl or n-hexyl, alkoxyalkyl, preferably C 2 -C 12 -alkoxyalkyl, particularly preferably C 3 -C 8 -alkoxyalkyl, hydroxyalkyl, preferably C 1 -C 12 -hydroxyalkyl, particularly preferably C 2 -C -g-
- Hydroxyalkyl cycloalkyl, preferably C 5 -C 12 -cycloalkyl, particularly preferably C 6 -C 12 -cycloalkyl, alkylcycloalkyl, preferably C 6 -C 12 -alkylcycloalkyl, particularly preferably C 7 -C 10 -alkylcycloalkyl, aryl, preferably C 6 -C 4 -cycloalkyl,
- Aryl mono- or diesters, which in the case of the diester can each also be mixed esters.
- alkyl esters of ⁇ , ⁇ -unsaturated monocarboxylic acids are methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, t-butyl (meth) acrylate, hexyl (meth) acrylate , 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, 2-propylheptyl acrylate and lauryl (meth) acrylate.
- n-butyl acrylate is used.
- alkoxyalkyl esters of the ⁇ , ⁇ -unsaturated monocarboxylic acids are methoxyethyl (meth) acrylate, ethoxyethyl (meth) acrylate and methoxyethyl (meth) acrylate.
- methoxyethyl acrylate is used.
- Particularly preferred hydroxyalkyl esters of the ⁇ , ⁇ -unsaturated monocarboxylic acids are hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate and hydroxybutyl (meth) acrylate.
- esters of the ⁇ , ⁇ -unsaturated monocarboxylic acids are, for example, polyethylene glycol (meth) acrylate, polypropylene glycol (meth) acrylate, glycidyl (meth) acrylate, epoxy (meth) acrylate, N- (2-hydroxyethyl) acrylamides, N- (2 Hydroxymethyl) acrylamides and urethane (meth) acrylate.
- ⁇ , ⁇ -unsaturated dicarboxylic acid monoesters examples include
- Monoalkyl maleate preferably monomethyl maleate, monoethyl maleate, monopropyl maleate and mono-n-butyl maleate;
- Malemic monocycloalkyl ester preferably monocyclopentyl maleate, monocyclohexyl maleate and monocycloheptyl maleate;
- Maleic acid monoalkylcycloalkyl ester preferably monomethylcyclopentyl maleate and monoethylcyclohexyl maleate;
- Maleic monoaryl ester preferably monophenylmaleate
- Fumaric acid monoalkyl esters preferably monomethyliumarate, monoethyliumarate, monopropyl fumarate and mono-n-butyl fumarate;
- Fumaric monocycloalkyl esters preferably monocyclopentyl fumarate, monocyclohexyl fumarate and monocycloheptyl fumarate;
- Fumaric acid monoalkylcycloalkyl ester preferably monomethylcyclopentyl fumarate and monoethylcyclohexyl fumarate;
- Fumaric monoaryl ester preferably monophenyl fumarate
- Fumaric acid monobenzyl ester preferably monobenzyl fumarate
- Citracon Acidmonoalkylester preferably Monomethylcitraconat, Monoethylcitraconat, Monopropylcitraconat and mono-n-butyl citraconate;
- Citraconic monocycloalkyl esters preferably monocyclopentylcitraconate, monocyclohexyl citraconate and monocycloheptylcitraconate;
- Citracon Acidmonoalkylcycloalkylester preferably Monomethylcyclopentylcitraconat and Monoethylcyclohexylcitraconat;
- Citracon Acidmonoarylester preferably Monophenylcitraconat
- Citraconic acid monobenzyl ester preferably monobenzyl citraconate
- Itaconic acid monoalkyl ester preferably monomethyl itaconate, monoethyl itaconate, monopropyl itaconate and mono-n-butyl itaconate
- Itaconic acid monocycloalkyl ester preferably monocyclopentyl itaconate, monocyclohexyl itaconate and monocycloheptyl itaconate;
- Itacon preferably Monomethylcyclopentylitaconat and
- Itaconic acid monoaryl ester preferably monophenyl itaconate
- Itaconic acid monobenzyl ester preferably monobenzyl itaconate
- the analog diesters can be used based on the aforementioned monoester groups, wherein the ester groups can also be chemically different.
- Radical polymerizable compounds which contain at least two olefinic double bonds per molecule are also suitable as further copolymerizable monomers. Examples of polyunsaturated compounds are acrylates, methacrylates or itaconates of polyols, e.g.
- acrylamides e.g.
- Methylenebisacrylamide, hexamethylene-l, 6-bisacrylamide, diethylenetriamine-tris-methacrylamide, bis (methacrylamido-propoxy) ethane or 2-acrylamido ethyl acrylate examples of polyunsaturated vinyl and allyl compounds are divinylbenzene, ethylene glycol divinyl ether, diallyl phthalate, allyl methacrylate, diallyl maleate, triallyl isocyanurate or triallyl phosphate.
- the proportions of conjugated diene and ⁇ , ⁇ -unsaturated nitrile in the nitrile rubbers according to the invention can vary within wide limits.
- the proportion of or the sum of the conjugated dienes is usually in the range of 20 to 95 wt.%, Preferably in the range of 40 to 90 wt .-%, particularly preferably in the range of 60 to 85 wt.%, Based on the total polymer.
- the proportion of or the sum of the ⁇ , ⁇ -unsaturated nitriles is usually 5 to 80% by weight, preferably from 10 to 60% by weight, more preferably from 15 to 40% by weight, based on the total polymer.
- the proportions of the monomers in each case add up to 100% by weight.
- the additional monomers may be present in amounts of from 0 to 40% by weight, based on the total polymer.
- corresponding proportions of the conjugated diene (s) and / or the ⁇ or ⁇ -unsaturated nitriles are replaced by the proportions of the additional monomers, with the proportions of all monomers in each case adding up to 100% by weight.
- esters of (meth) acrylic acid are used as additional monomers, this is usually carried out in amounts of from 0.5 to 25% by weight.
- ⁇ , ⁇ -unsaturated mono- or dicarboxylic acids are used as additional monomers, this is usually carried out in amounts of less than 10% by weight.
- the nitrogen content is determined in the nitrile rubbers according to the invention according to DIN 53 625 according to Kjeldahl. Due to the content of polar comonomers, the nitrile rubbers are usually soluble in methyl ethyl ketone at 20 ° C> 85 wt.%.
- nitrile rubbers in particular acrylonitrile-butadiene copolymers, are used which are not graft copolymers which have been obtained by grafting using further monomers, in particular no acrylates, onto the starting copolymer.
- the nitrile rubbers have Mooney viscosities (ML (1 + 4 @ 100 ° C)) of 10 to 160 Mooney units, preferably 20 to 150 Mooney units, more preferably 25 to 140 Mooney units.
- the Mooney viscosity is determined on uncalendered samples in accordance with ASTM DI 646.
- the glass transition temperatures of the nitrile rubbers are in the range of -80 ° C to + 20 ° C, preferably in the range of -70 ° C to + 10 ° and especially preferably in the range of -60 ° C to 0 ° C.
- nitrile rubbers according to the invention or optionally completely or partially hydrogenated nitrile rubbers, which have repeating units of acrylonitrile, 1,3-butadiene and optionally one or more further copolymerisable monomers.
- nitrile rubbers comprising repeating units of acrylonitrile, 1,3-butadiene and one or more ⁇ , ⁇ -unsaturated mono- or dicarboxylic acid, their esters or amides, and in particular Repeating units of an alkyl ester of an ⁇ , ⁇ -unsaturated carboxylic acid, most preferably of methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, t-butyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate or lauryl (meth) acrylate.
- the novel process for preparing the nitrile rubbers by emulsion polymerization of at least one ⁇ , ⁇ -unsaturated nitrile monomer and at least one conjugated diene monomer is characterized in that
- the subsequent washing of the nitrile rubber is carried out at a pH in the range from 6 to 12, preferably from 6.25 to 11, more preferably from 6.5 to 10.5 and in particular from 6.75 to 10.5.
- emulsion polymerization water-soluble salts of anionic emulsifiers or neutral emulsifiers can be used.
- Anionic emulsifiers are preferably used.
- Modified resin acids obtained by dimerization, disproportionation, hydrogenation and modification of resin acid mixtures containing abietic acid, neoabietic acid, palustric acid, levopimaric acid can be used as anionic emulsifiers.
- a particularly preferred modified rosin acid is the disproportionated rosin acid (Ullmann's Encyclopedia of Industrial Chemistry, 6th Edition, Volume 31, pp. 345-355).
- anionic emulsifiers and C6-C22 fatty acids can be used. They can be fully saturated or contain one or more double bonds in the molecule.
- fatty acids are caproic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid.
- the carboxylic acids are usually based on origin-specific oils or fats such. Castoroil, cottonseed, peanut oil, linseed oil, coconut fat, palm kernel oil, olive oil, rapeseed oil, soybean oil, fish oil and beef tallow, etc. (Ullmann's Encyclopedia of Industrial Chemistry, 6th Edition, Volume 13, pp. 75-108).
- Preferred carboxylic acids are derived from coconut fatty acid and beef tallow and are partially or completely hydrogenated. Such carboxylic acids based on modified resin acids or fatty acids are used as water-soluble lithium sodium, potassium and ammonium salts. The sodium and potassium salts are preferred.
- Anionic emulsifiers are also sulfonates, sulfates and phosphates bonded to an organic radical. Suitable organic radicals are aliphatic radicals, aromatic radicals, alkylated aromatic radicals, fused aromatic radicals and also methylene-bridged aromatic radicals, where the methylene-bridged and fused aromatic radicals may additionally be alkylated.
- the length of the alkyl chains is 6 to 25 C atoms.
- the length of the alkyl chains bonded to the aromatics is between 3 and 12 C atoms.
- the sulfates, sulfonates and phosphates are used as lithium, sodium, potassium and ammonium salts.
- the sodium, potassium and ammonium salts are preferred.
- Examples of such sulfonates, sulfates and phosphates are sodium lauryl sulfate, sodium alkyl sulfonate, sodium
- the alkylated naphthalenesulfonic acids and the methylene-bridged (and optionally alkylated) naphthalenesulfonic acids are usually in the form of isomer mixtures which may also contain more than 1 sulfonic acid group (2 to 3 sulfonic acid groups) in the molecule.
- Neutral emulsifiers are derived from addition products of ethylene oxide and propylene oxide on compounds with sufficiently acidic hydrogen. These include, for example, phenol, alkylated phenol and alkylated amines. The average degrees of polymerization of the epoxides are between 2 and 20. Examples of neutral emulsifiers are ethoxylated nonylphenols having 8, 10 and 12 ethylene oxide units. The neutral emulsifiers are usually not used alone, but in combination with anionic emulsifiers.
- the emulsifiers are used in an amount of 0.2-15 parts by weight, preferably 0.5-12.5 parts by weight, particularly preferably 1.0-10 parts by weight, based on 100 parts by weight of monomer mixture ,
- the emulsion polymerization is carried out using the emulsifiers mentioned. If, after completion of the polymerization, latices are obtained which tend to premature self-coagulation due to a certain instability, the said emulsifiers can also be used for the post-stabilization of the latexes. This may be necessary in particular before removal of unreacted monomers by treatment with water vapor and before latex storage.
- peroxidic initiators which can be used are the following peroxo compounds which have an -O-O unit: hydrogen peroxide, peroxodisulfates, peroxodiphosphates, hydroperoxides, peracids, peracid esters, peracid anhydrides and peroxides with two organic peroxides
- Residues As salts of peroxodisulfuric acid and peroxodiphosphoric acid, sodium, potassium and ammonium salts can be used.
- Suitable hydroperoxides are e.g. t-butyl hydroperoxide, cumene hydroperoxide, pinane hydroperoxide and p-menthane hydroperoxide.
- Suitable peroxides with two organic radicals are dibenzoyl peroxide, 2,4-dichlorobenzoyl peroxide, di-t-butyl peroxide, dicumyl peroxide, t-butyl perbenzoate, t-butyl peracetate. Preference is given to using p-menthane hydroperoxide or pinane hydroperoxide.
- oxidizing agent As redox systems, the following systems of an oxidizing agent and a reducing agent can be used.
- the choice of suitable amounts of oxidizing and reducing agents is sufficiently familiar to the person skilled in the art.
- salts of transition metal compounds such as iron, cobalt or nickel in combination with suitable complexing agents such as sodium ethylenediamtetraacetat, sodium nitrilotriacetate and trisodium phosphate or tetrapotassium diphosphate.
- peroxo compounds which have been mentioned above for the peroxidic initiators can be used as the oxidizing agent.
- suitable reducing agents in the process according to the invention are: sodium formaldehyde sulfoxylate, sodium benzaldehydesulfoxylate, reducing sugars, ascorbic acid, sulfenates, sulfinates, sulfoxylates, dithionite, sulfite, metabisulfite, disulfite, Sugar, urea, thiourea, xanthates, thioxanthogenates, hydrazinium salts, amines and amine derivatives such as aniline, dimethylaniline, monoethanolamine, diethanolamine or triethanolamine. Preference is given to using sodium formaldehyde sulfoxylate.
- Preferred redox systems are, for example: 1) potassium peroxodisulfate in combination with
- Triethanolamine 2) ammonium peroxodiphosphate in combination with sodium metabisulfite (Na 2 S 2 O 5 ), 3) p-menthane hydroperoxide / sodium formaldehyde sulfoxylate in combination with Fe-II sulfate (FeS 4 O 7 H 2 O), sodium ethylenediaminoacetate and trisodium phosphate; 4) cumene hydroperoxide / sodium formaldehyde sulfoxylate in combination with Fe-II sulfate (FeS 4 O 7 H 2 O), sodium ethylenediamine acetate and tetrapotassium diphosphate.
- the amount of oxidizing agent is 0.001 to 1 part by weight based on 100 parts by weight of monomer.
- the molar amount of reducing agent is between 50% to 500% based on the molar amount of the oxidizing agent used.
- the molar amount of complexing agent refers to the amount of transition metal used and is usually equimolar with this.
- reaction rate can be controlled.
- molecular weight regulators which are generally alkylthiols containing 9-16 carbon atoms.
- alkylthiols or (isomeric) mixtures of alkylthiols are either commercially available or can be prepared by those skilled in the art by methods which are well described in the literature.
- the polymerization time is in the range of 5 h to 15 h and depends essentially on the acrylonitrile content of the monomer mixture and on the polymerization temperature.
- the polymerization temperature is in the range of 0 to 50 ° C, preferably in the range of 5 to 45 ° C, particularly preferably in the range of 8 to 40 ° C.
- conversions in the range of 50 to 99%, preferably in the range of 65 to 95%, are reached, the polymerization is stopped.
- a stopper is added to the reaction mixture.
- dimethyldithiocarbamate, Na nitrite, mixtures of dimethyldithiocarbamate and Na nitrite, hydrazine and hydroxylamine and derived therefrom salts such as hydrazinium sulfate and hydroxylammonium sulfate, diethylhydroxylamine, diisopropylhydroxylamine, water-soluble salts of hydroquinone, sodium dithionite, phenyl-a-naphthylamine and aromatic phenols such tert-butyl catechol, or phenothiazine.
- the amount of water used in the emulsion polymerization is in the range of 100 to 900 parts by weight, preferably in the range of 120 to 500 parts by weight, more preferably in the range of 150 to 400 parts by weight of water based on 100 parts by weight the monomer mixture.
- salts can be added to the aqueous phase to reduce the viscosity during the polymerization, for pH adjustment as well as for pH buffering.
- salts of monovalent metals in the form of potassium and sodium hydroxide, sodium sulfate, sodium carbonate, sodium bicarbonate, lithium chloride, sodium chloride and potassium chloride are usually used.
- the amounts of these electrolytes are in the range 0 to 1 parts by weight, preferably 0 to 0.5 parts by weight based on 100 parts by weight of the monomer mixture.
- the polymerization can be carried out either batchwise or continuously in a stirred tank cascade.
- the polymerization is usually started with from 10 to 80% by weight, preferably from 30 to 50% by weight, of the total amount of initiator.
- the addition of individual components of the initiator system is possible.
- acrylonitrile or butadiene are postdosed, if the composition should be outside the azeotropic butadiene / acrylonitrile ratio.
- the replenishment takes place - as indicated for example in DD 154 702 - preferably computer-controlled on the basis of a computer program.
- a post-stabilization of the latex with emulsifier can take place.
- the abovementioned emulsifiers in amounts of 0.1 to 2.5% by weight, preferably 0.5 to 2.0% by weight. % based on 100 parts by weight of nitrile rubber.
- one or more anti-aging agents can be added to the latex. Phenolische, aminische and others are suitable for this
- Suitable phenolic antioxidants are alkylated phenols, styrenated phenol, sterically hindered phenols such as 2,6-di-tert-butylphenol, 2,6-di-tert-butyl / cresol (BHT), 2,6-di-tert.
- BPH 2,2'-methylenebis (4-methyl-6-tert-butylphenol)
- 2-methyl -4,6-bis octylsulfanylmethyl
- two or more anti-aging agents are also added, e.g. a mixture of octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, poly (dicyclopentadiene-co-p-cresol) and 2-methyl-4,6-bis (octylsulfanylmethyl) phenol.
- a discoloration of the rubber is of no importance, also aminic aging inhibitor z.
- DTPD diaryl-p-phenylenediamines
- ODPA octylated diphenylamine
- PAN phenyl-a-naphthylamine
- PBN phenyl-ß-naphthylamine
- phenylenediamines are N-isopropyl-N'-phenyl-p-phenylenediamine, N, 3-dimethylbutyl-N'-phenyl- / phenylenediamine (6PPD), N-1, 4-dimethylpentyl-N'-phenyl- / phenylenediamine ( 7PPD), N, N'-bis-1, 4- (1,4-dimethylpentyl) - / phenylenediamine (77PD) etc.
- anti-aging agents include phosphites such as tris (nonylphenyl) phosphite, polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ), 2-mercaptobenzimidazole (MBI), methyl 2-mercaptobenzimidazole (MMBI), zinc methylmercaptobenzimidazole (ZMMBI ).
- TMQ 2,2,4-trimethyl-1,2-dihydroquinoline
- MBI 2-mercaptobenzimidazole
- MMBI methyl 2-mercaptobenzimidazole
- ZMMBI zinc methylmercaptobenzimidazole
- TMQ, MBI and MMBI are mainly used for NBR grades that are vulcanized peroxide.
- Essential for the process according to the invention is that the coagulation of the nitrile rubber is carried out using at least one aluminum salt.
- At least one aluminum salt is used, which is an aluminum salt of a monovalent or divalent anion, preferably an aluminum halide, nitrate, sulfate, bicarbonate, carbonate, formate or acetate, particularly preferably an aluminum chloride or - sulphate.
- the at least one aluminum salt is used in aqueous solution whose concentration with respect to the at least one aluminum salt is usually 40-70% by weight, preferably 40-60% by weight.
- This aluminum salt solution is used in such an amount that, based on 100 parts by weight of nitrile rubber, 0.5-50 parts by weight of aluminum salt are used, preferably 0.8-40% by weight, particularly preferably 1.5-20% by weight. Salt, based on 100 parts by weight of nitrile rubber.
- the NBR dispersion is added to the aluminum salt solution. It has been proven to perform this addition with stirring.
- precipitants may also be used in the coagulation.
- Suitable precipitation aids are, for example, water-soluble polymers. These are nonionic, anionic or cationic.
- nonionic polymeric precipitation aids are modified cellulose such as hydroxyalkyl cellulose or methyl cellulose and adducts of ethylene oxide and propylene oxide on compounds with acidic hydrogen.
- compounds with acidic hydrogen are: Fatty acid, sugars such as sorbitol, mono- and difatty acid glycerides, phenol, alkylated phenols, (alkyl) phenol / formaldehyde condensates, etc.
- ethylene oxide and propylene oxide may be random and block-like. Of these products, those in which solubility decreases with increasing temperature are preferred. Characteristic clouding temperatures are in the range 0 to 100 ° C, in particular in the range of
- anionic polymeric precipitation aids are the homopolymers and copolymers of (meth) acrylic acid, maleic acid, maleic anhydride, etc.
- the sodium salt of polyacrylic acid is preferred.
- Cationic polymeric precipitants are usually based on polyamines and on homo- and copolymers of (meth) acrylamide. Preference is given to polymethacrylamides and polyamines, in particular based on epichlorohydrin and dimethylamine.
- the amounts of polymeric precipitation aids are from 0.01 to 5 parts by weight, preferably from 0.05 to 2.5
- the use of other precipitation aids and salts is conceivable. It should be noted, however, that it is possible without problems, the inventive method with the desired success in the absence of additional precipitation aids, and in particular in the absence of Ci-C rAlkylcellulosen, hydroxyalkylcelluloses, plant-derived proteinaceous materials or polysaccharides, such. Starch, or water-soluble polyamine compounds, as well as other coagulating salts, e.g. Calcium or sodium salts.
- the latex used for coagulation expediently has an NBR solids concentration in the range from 1% by weight to 40% by weight, preferably in the range from 5% by weight to 35% by weight and more preferably in the range from 15% by weight to 30% by weight .%.
- the latex coagulation is carried out in the temperature range from 10 to 100 ° C. Preferably, the latex coagulation is carried out at a temperature of 20 to 90 ° C.
- the pH during coagulation is in the range from 1 to 4.5, preferably from 1 to 4, particularly preferably from 1 to 3.75 and particularly preferably from 1 to 3.5 or If necessary, it is kept in the manner known to the person skilled in the art.
- the latex coagulation can be continuous or discontinuous, preferably continuous.
- the coagulation in the process according to the invention is carried out exclusively using aluminum salts. If one or more other precipitation salts are used which are not based on aluminum, their amount is usually not more than 10% by weight, preferably not more than 5% by weight and more preferably not more than 3% by weight on the total amount of all salts used for coagulation.
- the rubber is usually present in the form of so-called crumbs.
- the laundry of the coagulated rubber is therefore also referred to as "crumb laundry.”
- deionized water or non-deionized water can be used
- the laundry is carried out at a temperature in the range of 15 to 90 ° C, preferably at a temperature in the range from 20 to 80 ° C.
- the amount of wash water is 0.5 to 20 parts by weight, preferably 1 to 10 parts by weight, and more preferably 1 to 5 parts by weight, based on 100 parts by weight of rubber.
- the rubber crumbs are subjected to a multi-stage washing, wherein the rubber crumbs are partially dewatered between the individual washing stages.
- the residual moistures of the crumbs between the individual washing stages are in the range from 5 to 50% by weight, preferably in the range from 7 to 25% by weight.
- the number of washing stages is usually from 1 to 7, preferably from 1 to 3.
- the washing is carried out batchwise or continuously. Preference is given to using a multistage, continuous process, with countercurrent washing being preferred for the careful handling of water.
- Essential for the process according to the invention is that the laundry of the coagulated
- Nitrile rubber is carried out at a pH in the range of 6 to 12, preferably from 6.25 to 11, more preferably from 6.5 to 10.5 and in particular from 6.75 to 10.5.
- the drying of the pre-dehydrated rubber takes place in a dryer; suitable are, for example, fluid bed dryers or plate dryers.
- the drying temperatures are between 80 and 150 ° C. Preference is given to drying with a temperature program, the temperature being lowered towards the end of the drying process.
- the invention therefore also relates to the use of the nitrile rubbers according to the invention for the preparation of vulcanizable mixtures containing at least one inventive compound Nitrile rubber and at least one crosslinker.
- at least one inventive compound Nitrile rubber and at least one crosslinker may be present.
- one or more further additives may be present.
- vulcanizable mixtures are prepared by mixing at least one nitrile rubber according to the invention with at least one crosslinker. If necessary, one or more further additives are additionally used.
- Suitable crosslinkers are, for example, peroxidic crosslinkers such as bis (2,4-dichlorobenzyl) peroxide, dibenzoyl peroxide, bis (4-chlorobenzoyl) peroxide, 1, 1-bis (t-butylperoxy) -3,3,5-trimethylcylohexane, tert Butyl perbenzoate, 2,2-bis (t-butylperoxy) butene, 4,4-di-tert-butyl peroxynonyl valerate, dicumyl peroxide, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, tert-butyl cumyl peroxide, 1,3-bis (t-butylperoxy isopropyl) benzene, di-t-butyl peroxide and 2,5-dimethyl-2,5-di (t-butylperoxy) hexyn-3.
- crosslinking yield can be increased.
- additives include triallyl isocyanurate, triallyl cyanurate, trimethylolpropane tri (meth) acrylate, triallyl trimellitate, ethylene glycol dimethacrylate, butanediol dimethacrylate, trimethylolpropane trimethacrylate, zinc diacrylate , Zn-dimethacrylate, 1, 2-polybutadiene or N, N'-m-phenylenedimaleimide suitable.
- the total amount of crosslinker (s) is usually in the range from 1 to 20 parts by weight, preferably in the range from 1.5 to 15 parts by weight and more preferably in the range from 2 to 10 parts by weight, based on 100% by weight Parts of nitrile rubber.
- crosslinkers it is also possible to use sulfur in elementary soluble or insoluble form or sulfur donors.
- Suitable sulfur donors are, for example, dimorpholyl disulfide (DTDM), 2-morpholino dithiobenzothiazole (MB SS), caprolactam disulfide, dipentamethylene thiuram tetrasulfide (DPTT), and tetramethyl thiuram disulfide (TMTD).
- DTDM dimorpholyl disulfide
- MB SS 2-morpholino dithiobenzothiazole
- caprolactam disulfide dipentamethylene thiuram tetrasulfide
- DPTT dipentamethylene thiuram tetrasulfide
- TMTD tetramethyl thiuram disulfide
- additives with the aid of which the crosslinking yield can be increased e.g. Dithiocarbamates, thiurams, thiazoles, sulfenamides, xanthogenates, guanidine derivatives, caprolactams and thiourea derivatives.
- dithiocarbamates can be used, for example: Ammomumdimethyldithiocarbamat, sodium diethyldithiocarbamate (SDEC), Natriumdibutyl-dithiocarbamate (SDBC), Zinkdimethyl- dithiocarbamate (ZDMC), zinc diethyldithiocarbamate (ZDEC), Zinkdibutyldithio-carbamate (ZDBC), zinc ethylphenyldithiocarbamate (ZEPC), zinc dibenzyldithiocarbamate (ZBEC), Zinc pentamethylene dithiocarbamate (Z5MC), tellurium diethyldithio-carbamate, nickel dibutyldithiocarbamate, nickel dimethyldithiocarbamate and zinc diisononyldithio-carbamate.
- SDEC sodium diethyldithiocarbamate
- SDBC Natriumdibuty
- thiurams which may be used are: tetramethylthiuram disulphide (TMTD), tetramethylthiuram monosulphide (TMTM), dimethyldiphenylthiuram disulphide, tetrabenzylthiuram disulphide, dipentamethylenethiuram tetrasulphide and tetraethylthiuram disulphide (TETD),
- Suitable thiazoles are 2-mercaptobenzothiazole (MBT), dibenzothiazyl disulfide (MBTS), zinc mercaptobenzothiazole (ZMBT) and copper 2-mercaptobenzothiazole.
- sulfenamide derivatives which can be used are: N-cyclohexyl-2-benzothiazyl sulfenamide (CBS), N-tert-butyl-2-benzthiazyl sulfenamide (TBBS), N, N'-dicyclohexyl-2-benzthiazyl sulfenamide (DCBS), 2-morpholinothiobenzothiazole (MBS), N-oxydiethylenethiocarbamyl-N-tert-butylsulfenamide and oxydiethylenethiocarbamyl-N-oxyethylene-sulfenamide.
- CBS N-cyclohexyl-2-benzothiazyl sulfenamide
- TBBS N-tert-butyl-2-benzthiazyl sulfenamide
- DCBS N'-dicyclohexyl-2-benzthiazyl sulfenamide
- MFS 2-morpholinothiobenzothiazole
- xanthates there may be used, for example, sodium dibutylxanthogenate, zinc isopropyldibutylxanthogenate and zinc dibutylxanthogenate.
- guanidine derivatives which can be used are: diphenylguanidine (DPG), di-o-tolylguanidine (DOTG) and o-tolylbiguanide (OTBG).
- DPG diphenylguanidine
- DDG di-o-tolylguanidine
- OTBG o-tolylbiguanide
- dithiophosphates which can be used are: zinc dialkyldithiophosphates (chain length of the alkyl radicals C 2 to Cie), copper dialkyldithiophosphates (chain length of the alkyl radicals C 2 to CI 6 ) and dithiophosphoryl polysulfide.
- caprolactam for example, dithio-bis-caprolactam can be used.
- thiourea derivatives for example, ⁇ , ⁇ '-diphenylthiourea (DPTU), diethylthiourea (DETU) and ethylene thiourea (ETU) can be used.
- additives are, for example: zinc diamine diisocyanate, hexamethylenetetramine, 1,3-bis (citraconimidomethyl) benzene and cyclic disulfanes.
- the additives mentioned as well as the crosslinking agents can be used both individually and in mixtures.
- the following substances for crosslinking the nitrile rubbers are preferably used: sulfur, 2-mercaptobenzothiazole, tetramethylthiuram disulfide, tetramethylthiuram monosulfide, zinc dibenzyldithiocarbamate, dipentamethylenethiuram tetrasulfide, zinc dialkyl dithiophosphate, dimorpholyl, tellurium diethyldithiocarbamate, nickel dibutyl-dithiocarbamate, zinc dibutyldithiocarbamate, zinc dimethyldithiocarbamate and dithio-bis-caprolactam.
- crosslinking agents and additives mentioned above may each be used in amounts of about 0.05 to 10 parts by weight, preferably 0.1 to 8 parts by weight, in particular 0.5 to 5 parts by weight (individual dosage, in each case based on the active substance) are used based on 100 parts by weight of the nitrile rubber.
- sulfur crosslinking in addition to the crosslinking agents and the abovementioned additives, further inorganic or organic substances, for example: zinc oxide, zinc carbonate, lead oxide, magnesium oxide, saturated or unsaturated organic fatty acids and their zinc salts, polyalcohols, Amino alcohols such as triethanolamine and amines such as dibutylamine, dicyclohexylamine, cyclohexylethylamine and polyetheramines.
- further inorganic or organic substances for example: zinc oxide, zinc carbonate, lead oxide, magnesium oxide, saturated or unsaturated organic fatty acids and their zinc salts, polyalcohols, Amino alcohols such as triethanolamine and amines such as dibutylamine, dicyclohexylamine, cyclohexylethylamine and polyetheramines.
- scorch retarders can also be used. These include cyclohexylthiophthalimide (CTP), ⁇ , ⁇ 'dinitrosopentamethylenetetramine (DNPT), phthalic anhydride (PTA) and diphenylnitrosamine. Cyclohexylthiophthalimide (CTP) is preferred.
- the nitrile rubber of the invention may also be mixed with other customary rubber additives.
- fillers include, for example, typical and well-known substances such as fillers, filler activators, antiozonants, antiaging agents, antioxidants, processing aids, extender oils, plasticizers, reinforcing materials and mold release agents.
- fillers for example, carbon black, silica, barium sulfate, titanium dioxide, zinc oxide, calcium oxide, calcium carbonate, magnesium oxide, alumina, iron oxide, aluminum hydroxide, magnesium hydroxide, aluminum silicates, diatomaceous earth, talc, kaolins, bentonites, carbon nanotubes, Teflon (the latter preferably in powder form), or Silicates are used.
- the amount of fillers is usually in the range of 1-200 parts by weight, preferably 1-180 parts by weight, more preferably 1 to 150 parts by weight based on 100 parts by weight of the nitrile rubber.
- Suitable filler activators are, in particular, organic silanes, for example vinyltrimethyloxysilane, vinyldimethoxymethylsilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N-cyclohexyl-3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane, dimethyldiethoxysilane,
- organic silanes for example vinyltrimethyloxysilane, vinyldimethoxymethylsilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N-cyclohexyl-3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxys
- Further filler activators are, for example, surfactants such as triethanolamine and ethylene glycols having molecular weights of 74 to 10,000 g / mol.
- the amount of filler activators is usually 0 to 10 parts by weight based on 100 parts by weight of the nitrile rubber.
- Suitable mold release agents are, for example: saturated and partially unsaturated fatty and oleic acids and derivatives thereof (fatty acid esters, fatty acid salts, fatty alcohols, fatty acid amides) which are preferably used as a mixing component, furthermore products which can be applied to the mold surface, for example products based on low molecular weight silicone compounds , Products based on fluoropolymers and products based on phenolic resins.
- the mold release agents are used as a blend component in amounts of from 0 to 10 parts by weight, preferably from 0.5 to 5 parts by weight, based on 100 parts by weight of the nitrile rubber.
- Fibers Reinforcement with glass strengtheners (fibers) according to the teachings of US-A-4,826,721 is also possible, as well as reinforcing by cords, fabrics, fibers of aliphatic and aromatic polyamides (Nylon®, Aramid®), polyesters and natural fiber products.
- the invention further relates to a process for the production of moldings based on at least one nitrile rubber according to the invention, which is characterized in that vulcanizing the vulcanizable mixture described above in a molding process, preferably using an injection molding process.
- the invention thus also relates to the special molding which is obtainable by the aforementioned vulcanization process.
- a plurality of moldings can be made, e.g. a
- the aluminum-precipitated nitrile rubbers according to the invention are suitable for producing a power steering hose, textile-reinforced hoses, a hydraulic or fuel hose, pump stators, a flat gasket, a large-area gasket, rubberized fabric, a thermal insulation hose (with and without PVC additive), an oil cooler hose, from flexible fuel tanks or one
- Hydrogenation reactions are well known in the art and described in the literature.
- the metathesis is known, for example, from WO-A-02/100941 and WO-A-02/100905 and can be used for molecular weight reduction.
- the hydrogenation can be carried out using homogeneous or heterogeneous hydrogenation catalysts.
- the catalysts used are usually based on rhodium, ruthenium or titanium, but it is also possible to use platinum, iridium, palladium, rhenium, ruthenium, osmium, cobalt or copper either as metal or preferably in the form of metal compounds (see, for example, US Pat 3,700,637, DE-A-25 39 132, EP-A-0 134 023, DE-OS 35 41 689, DE-OS 35 40 918, EP-A-0 298 386, DE-OS 35 29 252 DE-OS-34 33 392, US-A-4,464,515 and US-A-4,503,196).
- Suitable catalysts and solvents for homogeneous phase hydrogenation are described below and are also known from DE-A-25 39 132 and EP-A-0 471 250.
- the selective hydrogenation can be achieved, for example, in the presence of a rhodium- or ruthenium-containing catalyst. It is possible, for example, to use a catalyst of the general formula
- M is ruthenium or rhodium
- R 1 are the same or different and represent a CpCg alkyl group, a C pCg cycloalkyl group, a C 6 -C 15 aryl group or a C 7 -C 15 aralkyl group.
- X is hydrogen or an anion, preferably halogen and particularly preferably chlorine or bromine
- 1 is 2,3 or 4
- m is 2 or 3 and n is 1,2 or 3, preferably 1 or 3.
- Preferred catalysts are tris (triphenylphosphine) rhodium (I) chloride, tris (triphenylphosphine) rhodium (III) chloride and tris (dimethylsulfoxide) rhodium (III) chloride and tetrakis (triphenylphosphine) rhodium hydride of the formula (C 6 H 5 ) 3 P) 4 RnH and the corresponding compounds in which the triphenylphosphine has been wholly or partly replaced by tricyclohexylphosphine.
- the catalyst can be used in small quantities. A lot in the range of
- 0.01-1 wt.% Preferably in the range of 0.03-0.5 wt.% And particularly preferably in the range of 0.1-0.3 wt.% Based on the weight of the polymer are suitable.
- m is 3
- B is phosphorus and the radicals R 1 may be the same or different.
- R 1 may be the same or different.
- co-catalysts can be found, for example, in US Pat. No. 4,631,315.
- Preferred co-catalyst is triphenylphosphine.
- the co-catalyst is preferably used in amounts in a range of 0.3-5 wt.%, Preferably in the range of 0.5-4 wt.%, Based on the weight of the nitrile rubber to be hydrogenated.
- the weight ratio of the rhodium-containing catalyst to the cocatalyst is preferably in the range from 1: 3 to 1:55, particularly preferably in the range from
- 1: 5 to 1: 45 based on 100 parts by weight of the nitrile rubber to be hydrogenated are preferably 0.1 to 33 parts by weight of the co-catalyst, preferably 0.5 to 20 and most preferably 1 to 5 parts by wt., In particular More than 2 but less than 5 parts by weight of co-catalyst based on 100 parts by weight of the nitrile rubber to be hydrogenated used.
- hydrogenation is understood as meaning a conversion of the double bonds present in the starting nitrile rubber to at least 50%, preferably 70-100%, particularly preferably 80-100%.
- heterogeneous catalysts are usually supported catalysts based on palladium, which are supported for example on carbon, silica, calcium carbonate or barium sulfate.
- the nitrogen content for determining the acrylonitrile content is determined in the nitrile rubbers according to DIN 53 625 according to Kjeldahl. Due to the content of polar comonomers, the nitrile rubbers are usually soluble in methyl ethyl ketone at 20 ° C> 85 wt.%.
- Mooney viscosity (ML 1 + 4 @ 100 ° C.) are determined in each case by means of a shear disk viscometer in accordance with DIN 53523/3 or ASTM D 1646 at 100 ° C. Used are uncalendered samples ("unmassed").
- the dried NBR rubbers were characterized by the Mooney viscosity before and after hot air storage for 48 hours at 100 ° C, i. Mooney viscosity was determined once immediately after drying (i.e., prior to hot air storage) and then after 48 hours of hot air aging at 100 ° C.
- the color of the aged rubber was evaluated.
- the color evaluation of the aged rubber samples was on a scale of 1-10, with 1 corresponding to the color of the unaged rubber and 10 to a complete black color.
- the determination of the aluminum content was carried out by 0.5 g of the nitrile rubbers were digested by dry ashing at 550 ° C in platinum crucible with subsequent dissolution of the ash in hydrochloric acid. After appropriate dilution of the digestion solution with deionized water, the aluminum content was determined by ICP-OES (inductively coupled plasma-optical emission spectrometry) at a wavelength of 309.271 nm against calibration matrix adapted with acid matrix. Depending on the concentration of the elements in the digestion solution or sensitivity of the measuring instrument used, the concentrations of the sample solutions for the respective wavelengths used were adapted to the linear range of the calibration (B. Welz "Atomic Absorption Spectrometry", 2nd Ed., Verlag Chemie, Weinheim 1985 )
- the aluminum index E expressed in [ppm / MU], results from aluminum content in ppm per Mooney unit based on the nitrile rubber.
- the scorch safety can be determined by the scorching behavior and its scorching time t 5
- the scorching time t 5 describes the time in minutes from Start of measurement until the Mooney viscosity increases by 5 Mooney units above the minimum viscosity at the indicated temperature.
- the polymerization was carried out batchwise in an autoclave with stirrer. Both
- AOS Sodium ⁇ Olefin sulfonate
- tert-TDM tert-dodecylmercaptan III Aluminum precipitation of NBR rubbers, examples AI-A12
- NBR latex Before coagulation of the respective NBR latex of this respectively with a 50% dispersion of Vulkanox BKF ® (0.3% Vulkanox BKF ® wt. Based on NBR solid) was added.
- a stopped aqueous NBR latex dispersion is used which has a NBR solids content of 18% by weight and where the polymer content in the NBR latex has a content of 44% by weight based on the monomer acrylonitrile and 56% by weight based on the Monomer has butadiene.
- the concentration of the aluminum sulfate solutions is chosen so that homogeneous crumbs of the NBR rubber are obtained.
- the amounts of aluminum sulfate solutions relative to the NBR rubber are 9 +/- 1 phr and are given in Tables 2 and 3, respectively.
- Comparative Example 1 It can be seen that a small deviation in the pH of the wash of 5.1 beyond the range of 6 to 12 relevant to the invention leads to a substantially deteriorated color evaluation for the aged samples. It can also be seen that even by a higher amount of aluminum sulfate solutions (phr) in the precipitation (Example A10-A12 compared to A7-A9), the remaining amount of aluminum ions in the rubber is not necessarily increased.
- the concentration of the aluminum sulfate solutions is chosen so that homogeneous crumbs of the NBR rubber are obtained.
- the amounts of aluminum sulfate solutions relative to the rubber are given in Table 4.
- the crude rubber obtained is washed with water at the pH value and temperature given in Table 4 and dried at 60 ° C. for 16 hours in a vacuum oven, so that the residual moisture content is ⁇ 0.6%.
- Table 4 shows that obtained by aluminum precipitation at an acidic pH of 3 with subsequent basic wash in the invention relevant pH range from 6 to 12 rubbers, which have only a low salt content, in addition have a low aluminum index E and also after Aging to show good color stability. It is advantageous that this applies to nitrile rubbers having a very high as well as those having a very low acrylonitrile content in the polymer, since the latter react particularly sensitively.
- the vulcanizates VI to VI 8 were prepared from the nitrile rubbers Al - Al 8 as described below.
- the constituents of the vulcanizable mixtures are based on 100 parts of rubber and given in Table 5.
- the vulcanizate No. in Table 5 corresponds in each case to the nitrile rubber with the same number.
- vulcanizate VI is prepared, from nitrile rubber A2 vulcanizate V2, etc.
- the mixtures were made in a Banbury mixer according to IS04658, section 5.2.3.3. produced.
- the rubber and all additives listed in Table 4 were mixed for a total of 5 minutes at a maximum temperature of up to 60 ° C.
- Table 5 Composition of the vulcanizable mixtures for vulcanizates VI-V18
- the vulcanizates obtained were as shown in Table 6 to 8 scorch time t 5 to DIN53523 or the specified Mooney Scorch at 140 ° C (MS t 5/140 ° C). It can be seen that the polymers with an aluminum Index E is less or equal to 35 ppm / MU a longer scorch MS t5 / 140 ° C have a non-inventive samples, that the former have a very good processing safety, as it is required for aluminum precipitated types.
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Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EP15802041.2A EP3233929A1 (de) | 2014-12-19 | 2015-11-25 | Farbstabile nitrilkautschuke |
KR1020177016246A KR102440842B1 (ko) | 2014-12-19 | 2015-11-25 | 색-안정성 니트릴 고무 |
RU2017125781A RU2689632C2 (ru) | 2014-12-19 | 2015-11-25 | Цветоустойчивые нитрильные каучуки |
MX2017008088A MX358291B (es) | 2014-12-19 | 2015-11-25 | Cauchos de nitrilo de color estable. |
BR112017012986-8A BR112017012986B1 (pt) | 2014-12-19 | 2015-11-25 | Borracha de nitrila, processo para a produção de borrachas de nitrila, mistura vulcanizável, processo para a produção da mistura vulcanizável, processo para a produção de vulcanizados, e vulcanizados |
JP2017532870A JP6434626B2 (ja) | 2014-12-19 | 2015-11-25 | 色安定性ニトリルゴム |
US15/536,315 US11248078B2 (en) | 2014-12-19 | 2015-11-25 | Color-stable nitrile rubbers |
CN201580069331.3A CN107108763B (zh) | 2014-12-19 | 2015-11-25 | 颜色稳定的丁腈橡胶 |
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EP14290399.6A EP3034518B1 (de) | 2014-12-19 | 2014-12-19 | Farbstabile Nitrilkautschuke |
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JP7155594B2 (ja) * | 2018-04-27 | 2022-10-19 | 日本ゼオン株式会社 | アクリルゴムの製造方法 |
CN110452430B (zh) * | 2018-05-07 | 2021-11-09 | 枣庄市三兴高新材料有限公司 | 一种高岭土/橡胶纳米复合材料的制备方法 |
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2014
- 2014-12-19 EP EP14290399.6A patent/EP3034518B1/de active Active
- 2014-12-19 PL PL14290399T patent/PL3034518T3/pl unknown
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2015
- 2015-11-25 EP EP15802041.2A patent/EP3233929A1/de not_active Withdrawn
- 2015-11-25 CN CN201580069331.3A patent/CN107108763B/zh active Active
- 2015-11-25 BR BR112017012986-8A patent/BR112017012986B1/pt active IP Right Grant
- 2015-11-25 JP JP2017532870A patent/JP6434626B2/ja active Active
- 2015-11-25 US US15/536,315 patent/US11248078B2/en active Active
- 2015-11-25 KR KR1020177016246A patent/KR102440842B1/ko active IP Right Grant
- 2015-11-25 RU RU2017125781A patent/RU2689632C2/ru active
- 2015-11-25 MX MX2017008088A patent/MX358291B/es active IP Right Grant
- 2015-11-25 WO PCT/EP2015/077669 patent/WO2016096352A1/de active Application Filing
- 2015-12-17 TW TW104142404A patent/TWI682970B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US3790646A (en) * | 1971-05-01 | 1974-02-05 | H Fukuda | Oil-resistant polymer composition |
US4383108A (en) * | 1981-07-29 | 1983-05-10 | The B. F. Goodrich Company | Production of emulsion-polymerized butadiene rubber in powder form |
WO2007049651A1 (ja) * | 2005-10-25 | 2007-05-03 | Zeon Corporation | ニトリルゴム、ニトリルゴム組成物および架橋物 |
US20080293889A1 (en) * | 2007-05-22 | 2008-11-27 | Lanxess Deutschland Gmbh | Nitrile rubbers |
US20080293868A1 (en) * | 2007-05-22 | 2008-11-27 | Lanxess Deutschland Gmbh | Nitrile rubbers |
EP2177547A1 (de) * | 2007-08-10 | 2010-04-21 | Zeon Corporation | Hoch gesättigtes nitrilkautschuk für ein versiegelungsmaterial und vernetztes kautschuk |
Also Published As
Publication number | Publication date |
---|---|
RU2689632C2 (ru) | 2019-05-28 |
KR20170095862A (ko) | 2017-08-23 |
JP6434626B2 (ja) | 2018-12-05 |
EP3034518B1 (de) | 2017-05-24 |
US20170349687A1 (en) | 2017-12-07 |
RU2017125781A (ru) | 2019-01-21 |
JP2018503717A (ja) | 2018-02-08 |
MX2017008088A (es) | 2017-10-31 |
CN107108763A (zh) | 2017-08-29 |
CN107108763B (zh) | 2019-09-06 |
EP3233929A1 (de) | 2017-10-25 |
US11248078B2 (en) | 2022-02-15 |
TW201629137A (zh) | 2016-08-16 |
RU2017125781A3 (de) | 2019-03-28 |
PL3034518T3 (pl) | 2017-10-31 |
BR112017012986A2 (pt) | 2018-03-06 |
EP3034518A1 (de) | 2016-06-22 |
KR102440842B1 (ko) | 2022-09-06 |
TWI682970B (zh) | 2020-01-21 |
BR112017012986B1 (pt) | 2021-08-17 |
MX358291B (es) | 2018-08-13 |
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