WO2002077049A1 - Copolymere polyoxymethylene et article moule correspondant - Google Patents
Copolymere polyoxymethylene et article moule correspondant Download PDFInfo
- Publication number
- WO2002077049A1 WO2002077049A1 PCT/JP2002/002920 JP0202920W WO02077049A1 WO 2002077049 A1 WO2002077049 A1 WO 2002077049A1 JP 0202920 W JP0202920 W JP 0202920W WO 02077049 A1 WO02077049 A1 WO 02077049A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyoxymethylene copolymer
- polymerization
- copolymer
- weight
- polyoxymethylene
- Prior art date
Links
- 229920012196 Polyoxymethylene Copolymer Polymers 0.000 title claims abstract description 55
- 229920001577 copolymer Polymers 0.000 claims abstract description 51
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims abstract description 22
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 230000008025 crystallization Effects 0.000 claims abstract description 14
- 230000014759 maintenance of location Effects 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000004580 weight loss Effects 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 19
- -1 amino substituted triazine compound Chemical class 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 6
- 239000000347 magnesium hydroxide Substances 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 description 91
- 238000000034 method Methods 0.000 description 23
- 239000008188 pellet Substances 0.000 description 17
- 239000003054 catalyst Substances 0.000 description 15
- 230000000087 stabilizing effect Effects 0.000 description 14
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 12
- 238000000465 moulding Methods 0.000 description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- 238000011282 treatment Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 230000006641 stabilisation Effects 0.000 description 8
- 238000011105 stabilization Methods 0.000 description 8
- 229910015900 BF3 Inorganic materials 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000012760 heat stabilizer Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 5
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 150000003918 triazines Chemical class 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 238000012662 bulk polymerization Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 4
- 238000009661 fatigue test Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002685 polymerization catalyst Substances 0.000 description 4
- 239000000243 solution Substances 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
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
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- 238000000354 decomposition reaction Methods 0.000 description 3
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- 238000001746 injection moulding Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 description 2
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002903 organophosphorus compounds Chemical class 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- UYVWNPAMKCDKRB-UHFFFAOYSA-N 1,2,4,5-tetraoxane Chemical compound C1OOCOO1 UYVWNPAMKCDKRB-UHFFFAOYSA-N 0.000 description 1
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 1
- RXAJVQFAGVLDEU-UHFFFAOYSA-N 2,2,3-trifluorooxane Chemical compound FC1CCCOC1(F)F RXAJVQFAGVLDEU-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- SFXNZFATUMWBHR-UHFFFAOYSA-N 2-morpholin-4-yl-2-pyridin-3-ylacetonitrile Chemical compound C=1C=CN=CC=1C(C#N)N1CCOCC1 SFXNZFATUMWBHR-UHFFFAOYSA-N 0.000 description 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- 229910021630 Antimony pentafluoride Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000002841 Lewis acid Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- MVNCAPSFBDBCGF-UHFFFAOYSA-N alpha-pinene Natural products CC1=CCC23C1CC2C3(C)C MVNCAPSFBDBCGF-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- VBVBHWZYQGJZLR-UHFFFAOYSA-I antimony pentafluoride Chemical compound F[Sb](F)(F)(F)F VBVBHWZYQGJZLR-UHFFFAOYSA-I 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000002635 aromatic organic solvent Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- YBGKQGSCGDNZIB-UHFFFAOYSA-N arsenic pentafluoride Chemical compound F[As](F)(F)(F)F YBGKQGSCGDNZIB-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical class [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
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- 230000006866 deterioration Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
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- 235000011187 glycerol Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 150000004820 halides Chemical class 0.000 description 1
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- 230000020169 heat generation Effects 0.000 description 1
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- 150000003949 imides Chemical class 0.000 description 1
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- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- OBCUTHMOOONNBS-UHFFFAOYSA-N phosphorus pentafluoride Chemical compound FP(F)(F)(F)F OBCUTHMOOONNBS-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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- 229920001223 polyethylene glycol Polymers 0.000 description 1
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- 229910052700 potassium Inorganic materials 0.000 description 1
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- 150000003139 primary aliphatic amines Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- GRWFGVWFFZKLTI-UHFFFAOYSA-N rac-alpha-Pinene Natural products CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
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- 238000007873 sieving Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003510 tertiary aliphatic amines Chemical class 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
- C08L59/04—Copolyoxymethylenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/18—Copolymerisation of aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
Definitions
- the present invention relates to a polyoxymethylene copolymer having excellent thermal stability, excellent bending fatigue, and having very little deposit on a mold during molding, and a molded article thereof.
- Conventional technology
- Polyoxymethylene copolymers are excellent in mechanical and thermal performance, and are used as representative engineering plastics in a wide range of fields such as mechanical, electrical and electronic, and automotive.
- a polyoxymethylene copolymer is obtained by copolymerizing formaldehyde or its cyclic oligomer, trioxane tetraoxane, and a comonomer copolymerizable therewith, but is easily decomposed from the terminal of the polymer. It is known.
- the triazine derivative does not improve the thermal stability of the polyoxymethylene copolymer. Although it is a very effective additive, it is poorly compatible with polyoxyethylene copolymers, so that when a large amount of a triazine derivative is added to a continuously formed oxymethylene copolymer, this triazine derivative becomes gold. This causes a problem that causes adhesion to the mold (deterioration of mold deposit resistance).
- Japanese Patent Application Laid-Open No. Hei 8-59977 discloses that an oxymethylene copolymer produced by a conventional technique using 1,3-dioxolan as a copolymer component in an amount of 3 to 7 moles relative to trioxane is disclosed. It is disclosed that the unstable portion causing poor thermal stability is smaller than when ethylene oxide is used as a copolymer component. However, the effect of improving the thermal stability is insufficient with the amount of 1,3-dioxolane produced by this production method.
- the method of improving the polymerization yield is to increase the amount of the catalyst used, but it is known that a simple increase in the amount of the catalyst promotes formation of an unstable portion and is not preferable. Problems to be solved by the invention
- the first object of the present invention is to provide excellent thermal stability and excellent properties against bending fatigue.
- folding resistance (Hereinafter referred to as "folding resistance").
- a second object of the present invention is to provide a polyoxymethylene copolymer which has very little deposits on a mold during molding, that is, has excellent moldability.
- a third object of the present invention is to provide a polyoxymethylene copolymer having a high polymerization yield and a small weight loss due to heating.
- Another object of the present invention is to provide a molded article of a polyoxymethylene copolymer having excellent properties with respect to bending fatigue.
- the object of the present invention is to provide a method for producing a polyoxymethylene copolymer having the above-mentioned excellent properties.
- Means for solving the problem According to the study of the present inventors, the object of the present invention is to provide a polyoxymethylene copolymer obtained by copolymerizing 8 to 20 mol of 1,3-dioxolane per 100 mol of trioxane.
- the crystallization time at 144 ° C. is 10 to 2,000 seconds
- the number of times of the bending resistance test is 30 to 1,000 times. It has been found that this can be achieved by providing a polyoxymethylene copolymer having the property that the retention stability is 40 minutes or more.
- a polyoxymethylene copolymer having excellent folding resistance and excellent heat stability can be obtained. Further, according to the present invention, a polyoxymethylene copolymer having extremely small amount of deposits on a metal mold during molding and thus having excellent molding productivity can be obtained.
- the polyoxymethylene copolymer of the present invention can be obtained by using trioxane as a main monomer and using 1,3-dioxolane as a comonomer in an amount of 8 to 20 mol per 100 mol of trioxane. At this time, cation activated catalyst is used as a catalyst.
- Examples of the polymerization method of the polyoxymethylene copolymer include a bulk polymerization method and a melt polymerization method.
- a preferred polymerization method is a bulk polymerization method using substantially no solvent or a quasi-bulk polymerization method using 20% by weight or less of a solvent based on a monomer, and these bulk polymerization methods are in a molten state. This is a method of polymerizing using a monomer to obtain a solid and powdered polymer as the polymerization proceeds.
- the starting monomer is trioxane, a cyclic trimer of formaldehyde, and 1,3-dioxolane is used as the comonomer.
- the amount of 1,3-dioxolan added is in the range of 8 to 20 mol, preferably in the range of 8.5 to 18 mol, particularly preferably in the range of 9 to 15 mol, based on 100 mol of trioxane. .
- the amount of 1,3-dioxolane used is larger than this, the polymerization yield decreases, and when it is small, the thermal stability decreases.
- a cationically active catalyst is used as the polymerization catalyst.
- cationically active catalysts include Lewis acids, especially halides such as boron, tin, titanium, phosphorus, arsenic, and antimony, such as boron trifluoride, tin tetrachloride, and tetrachloride.
- protic acids for example trifluoromethanesulfonic acid, perchloric acid, esters of protic acids, In particular, an ester of perchloric acid with a lower aliphatic alcohol, an anhydride of a protic acid, particularly a mixed anhydride of perchloric acid with a lower aliphatic carboxylic acid; or triethyloxoniumhexafluoro Examples thereof include phosphato, triphenylmethylhexafluoroarsenate, acetylhexafluoroporate, a heteropoly acid or an acid salt thereof, an isopoly acid or an acid salt thereof, and the like.
- boron trifluoride jetifleate which is a coordination complex with ethers
- Monoterate and boron trifluoride dibutyl etherate are particularly preferred.
- the amount of the catalyst, relative Toriokisan 1 mole is usually 1 X 1 0- 7 ⁇ 1 X 1 0- 3 mol, preferably 1 X 1 Fei - is 7 to 1 X 1 0 one 4 mol .
- a suitable molecular weight regulator may be used for controlling the molecular weight of the polyoxymethylene copolymer. Examples of the molecular weight regulator include carboxylic acids, carboxylic anhydrides, esters, amides, imides, phenols, and acedal compounds.
- phenol, 2,6-dimethylphenol, methylal, and polyoxymethylene dimethoxide are preferably used, and most preferred is methylal.
- the molecular weight regulator is used alone or in the form of a solution.
- the solvent may be hexane, heptane, cyclohexane, etc.
- the polymerization apparatus used to obtain the polyoxymethylene copolymer of the present invention can be either a batch type or a continuous type.
- a batch type polymerization apparatus a commonly used reaction vessel equipped with a stirrer is used. Can be used.
- the continuous polymerization equipment is a kneader or twin shaft equipped with rapid solidification during polymerization, strong stirring ability to cope with heat generation, precise temperature control, and a self-cleaning function to prevent scale adhesion.
- a screw-type continuous extrusion kneader, a twin-screw paddle-type continuous mixer and other continuous polymerization devices for trioxane proposed so far can be used, and a combination of two or more types of polymerization devices is used. You can also.
- polymerization yield is a value measured according to the method described below.
- the boundary yield is preferably between 65 and 90%, more preferably between 70 and 90%, and most preferably between 80 and 90%.
- the polymerization temperature is between 60 and 115, preferably between 60 and 110, more preferably between 60 and 100, most preferably between 60 and 100, until the polymerization yield reaches the boundary yield. Should be kept in the range 60-9O :.
- the polymerization yield is not less than the boundary yield, it is preferably 0 to 100, preferably 0 to 80 ⁇ , more preferably 0 to 70 ° C, and most preferably 0 to 60 ° C. It should be kept in scope. If the polymerization temperature until the polymerization yield reaches the boundary yield is higher than this, the thermal stability decreases and the polymerization yield also decreases. When the temperature is low, the thermal stability is maintained, but the polymerization yield also decreases in this case. If the polymerization temperature at or above the boundary yield is higher than this, the thermal stability will decrease. If the polymerization temperature is lower, problems will occur, such as an increase in the torque of the stirring power of the polymerization apparatus. Also, the polymerization temperature above the boundary yield must not be higher than the temperature to reach the boundary yield. If this is reversed, thermal stability will be reduced.
- the polymerization time is selected in the range of 3 to 120 minutes, preferably in the range of 5 to 60 minutes, and particularly preferably in the range of 10 to 60 minutes. If the polymerization time is short, the thermal stability and yield of the obtained resin will be poor. On the other hand, if the polymerization time is long, the productivity is reduced.
- the polymerization time has a preferred lower limit depending on the proportion of 1,3-dioxolane to be copolymerized. For example, when the ratio of 1,3-dioxolane is in the range of 8 to 11 moles per 100 moles of trioxane, it is 3 minutes or more, preferably 4 minutes or more. On the other hand, when the ratio of 1,3-dioxolane is in the range of 11 to 20 moles per 100 moles of trioxane, it is 5 minutes or more, preferably 6 minutes or more.
- the coalescence discharged from the polymerization apparatus must be immediately brought into contact with a deactivator to deactivate the polymerization catalyst and terminate the polymerization reaction.
- a deactivator to deactivate the polymerization catalyst and terminate the polymerization reaction.
- Examples of the deactivator used include trivalent organic phosphorus compounds, amine compounds, hydroxides of alkali metals and alkaline earth metals.
- the amine compound primary, secondary, and tertiary aliphatic amines, aromatic amines, heterocyclic amines, hindered amines, and other known catalyst deactivators can be used.
- ethylamine, getylamine, triethylamine, mono-n-butylamine, di-n-butylamine, tree-n-butylamine, aniline, diphenylamine, pyridine, piperidine, morpholine and the like can be used.
- trivalent organic phosphorus compounds and tertiary amines are particularly preferred, and triphenylphosphine is most preferred.
- the amount of the deactivator to be added is not particularly limited as long as the catalyst is deactivated and the reaction is stopped, but is usually 0.5 to 30 mol per 1 mol of the polymerization catalyst used, and is preferably used. Is 1 to 20 mol.
- the solvent used is not particularly limited.
- acetone, methyl ethyl ketone, hexane, and cyclohexane Various kinds of aliphatic and aromatic organic solvents such as water, heptane, benzene, toluene, xylene, methylene dichloride and ethylene dichloride can be used.
- the deactivation treatment is preferably carried out in such a manner that the crude polymer is a fine solid, and for this purpose, a polymerization reactor having a function of sufficiently pulverizing a bulk polymer is preferable.
- the reactant may be separately pulverized using a pulverizer, and then a quenching agent may be added.
- the pulverization and stirring may be carried out simultaneously in the presence of the quencher.
- the degree of crushing was as follows: The crushed particle size was determined by sieving with a standard sieve using a Ro-Tap (mouth-to-mouth) shaker, and 10 O wt% passed through a 10-mesh sieve. It is desirable to pulverize so that the particle size is such that 90 wt% or more passes through a 20-mesh sieve and 60 wt% or more passes through a 60-mesh sieve. If milling is not performed to such a particle size, the reaction between the deactivator and the catalyst is complete. Therefore, the remaining catalyst causes the depolymerization to proceed gradually, resulting in a decrease in molecular weight.
- the copolymer in which the polymerization catalyst has been deactivated can be obtained in a high yield because it can be sent to the subsequent stabilization step as it is, but if further purification is necessary, washing and unreacted monomer It can be separated and collected, dried, etc.
- the following stabilization methods (1) and (2) can be employed.
- the method (1) is simpler in process than the method (2) and is preferred as an industrial method. That is, when the method (1) is adopted, the polyoxymethylene copolymer is heated from its melting temperature (mp) to a temperature higher by 100 ° C. under a pressure of 760 to 0.1 l Torr. Is preferably kneaded. If the treatment temperature is lower than the melting temperature of the polyoxymethylene copolymer, the decomposition of the unstable portion becomes insufficient, and the stabilizing effect cannot be obtained. If the melting temperature (mp) exceeds 100, which is a high temperature, the yellowing may occur, the main chain of the polymer may be decomposed by heat, and at the same time, an unstable portion may be generated and thermal stability may be impaired.
- the melting temperature (mp) exceeds 100, which is a high temperature, the yellowing may occur, the main chain of the polymer may be decomposed by heat, and at the same time, an unstable portion may be generated and thermal stability may be impaired.
- the pressure during the treatment is higher than 76 Torr, the effect of removing the decomposition gas generated by decomposition of the unstable part out of the system is low, and a sufficient stabilizing effect cannot be obtained. If the pressure is lower than 0.1 Torr, the equipment for obtaining such a high degree of decompression becomes expensive, causing not only industrial disadvantages but also the possibility that the molten resin easily flows out of the suction vent, resulting in operational problems. It is not preferable because it easily causes a trajectory.
- a single-screw extruder or a twin-screw or more extruder with vent can be used as an apparatus used for the stabilization treatment.
- the extruder must have at least two extruders to achieve the required residence time
- a stabilizer such as an antioxidant or a heat stabilizer can be added during the melt kneading of the polyoxymethylene copolymer.
- Antioxidants that can be used include triethylene glycol-bis-3- (3-t-butyl-4-hydroxy-15-methylphenylene) propionate, pentaerythrityl-tetrakis-3- (3-, 5-di-t-butyl-4) —Hydroxyphenyl) sterically hindered phenols such as propionate.
- the heat stabilizer include melamine, methylol melamine, benzoguanamine, cyanoguanidine, amine-substituted triazines such as N, N-diarylmelamine, polyamides, urea derivatives, urethanes, etc. sodium, potassium, calcium, magnesium, etc. And inorganic salts, hydroxides and organic salts of barium.
- an amine-substituted triazine compound particularly melamine
- its content is 0.001-1% by weight based on the polyoxymethylene copolymer.
- the use of magnesium hydroxide particles as a heat stabilizer is a preferred embodiment.
- the magnesium hydroxide particles are used in a proportion of 0.001-1% by weight based on the polyoxymethylene copolymer.
- an amine-substituted triazine compound and magnesium hydroxide particles are used in combination as a heat stabilizer, particularly excellent effects are achieved.
- the polyoxymethylene copolymer of the present invention includes a coloring agent, a nucleating agent, a plasticizer, a release agent, an antistatic agent such as polyethylene glycol and glycerin, and a benzotriazole or benzophenone compound.
- Additives such as ultraviolet absorbers and light stabilizers such as hindered amines can be added as desired. Since the polyoxymethylene copolymer according to the present invention has the characteristics described below, a valuable molded article can be obtained.
- the copolymer of the present invention gives a molded article having significantly improved bending fatigue properties, and thus has extremely excellent value as a material for a molded article requiring a high degree of bending resistance.
- the crystallization time of the polyoxymethylene copolymer is from 10 to 2,000 seconds, and under preferable conditions, from 30 to 1,500 seconds. If the crystallization time is less than 10 seconds, the molded product is likely to warp. If it exceeds 2000 seconds, the molding cycle becomes longer, which is not preferable.
- the polyoxymethylene copolymer has excellent thermal stability. According to the retention heat stability test described below, it has a value of 40 minutes or more, preferably 60 minutes or more, and particularly preferably 70 minutes or more. According to the heating weight reduction rate test described below, the reduction rate is 2.5% by weight or less, preferably 2% by weight or less, and most preferably 1.5% by weight or less.
- the polyoxymethylene copolymer has little adhesion to the mold during molding and has excellent molding productivity. According to the mold deposit (MD resistance) test described below, the number of shots is 4,000 or more, preferably 5,000 or more. Since the polyoxymethylene copolymer of the present invention has excellent bending fatigue properties, it is suitably used for hinge parts.
- the hinge part refers to a molded part having a thin part (hinge part) to which one or more bending or bending loads are applied in a certain part of the molded part.
- the shape of the hinge is not particularly limited, and may be a sheet, a band, a string, or the like.
- the thickness and length of the hinge portion are not specified, and those having a function substantially as a hinge portion are included in the hinge component according to the present invention.
- the term “bend resistance” is defined as the durability against one or more bending or bending loads at the hinge portion as described above.
- the polyoxymethylene copolymer of the present invention is used as various molded articles by utilizing its properties. The specific uses are listed.
- Molded parts for automobiles and vehicles For example, pipe holders, electric wire holders, connectors, assist clips, storage materials for pumps, automotive parts such as consoles / boxes, door trims and door checkers, vehicle parts such as sun paisers, and other internal gears for bicycles .
- connectors in the electronics industry housing cases for single-fiber optical fiber connections, disk cartridges, tape cassettes, trays for disc-shaped recording media, toners, film holders, protection covers for electronic components.
- caps and compact containers For example, caps and compact containers, card cases, toothbrushes, eating and drinking utensils, clothing parts, clips, cover rails, curtain rail caps, liquid container lids, writing utensils, collapsible storage frames, baskets and accessories hand.
- pipe fittings for structures For example, pipe fittings for structures, conveyor chains, cable chain ties, roof units, anti-vibration clamps.
- the two circles have an inner cross section partially overlapping, the inner diameter of the inner cross section is 20 cm, and a pair of shafts is provided in a long case with a jacket around it.
- a continuous mixer with a length of 144 cm, in which a large number of triangular plates are fitted and the inside of the case and the surface of the partner pseudo triangular plate can be cleaned with the tip of the pseudo-triangular plate. ( ⁇ 2) Folding resistance test Zhe-ri bend fatigue test)
- the pellets (3 kg) were placed in a stainless steel pad and pre-dried at 90 ° C for 2 hours or more.
- a hot air circulation type dryer was used as a dryer.
- the pre-dried pellets were put into a molding machine attached to a hopper dryer (Nissei Plastic Industry Co., Ltd., model: FS160S, mold clamper 160 tf), and test pieces were molded under the following molding conditions.
- the test piece is 0.8 mm thick, 12.7 mm wide and 127 mm long.
- Zone 4 1 80 Screw, rpm) 60 Injection pressure (k fcm2) 9 50 Injection time (sec; 15 Cooling time sec) 1 5 Mold temperature (V) 90 Hopper dryer temperature (in) 80 (iii) Folding resistance Measurement
- test pieces After forming, the test pieces are conditioned in a room with a temperature of 23 ⁇ 2 ° C and a relative humidity of 50 soil 5% for 48 hours or more, and then subjected to a bending fatigue test.
- Test conditions bending angle; ⁇ 135 degrees, tension load; 1 kgf, Test speed: 220 times Zmin, Chuck R: 0.38mm
- the change in birefringence due to crystallization was measured by a polymer crystallization rate measuring device (MK-701 manufactured by Hexa Chemical Co., Ltd.) that optically detects the change.
- a film sample with a thickness of about 50 im produced by a hot press was heated and melted at 200 ° C for 2 minutes, immersed in an oil bath at 143 ° C, and passed through a polarizing plate (polarizer 1) to transmit light.
- the amount of the transmitted light after passing through a polarizing plate (analyzer) was detected by a light receiving element, and the time from the time change of the light amount to the crystallization was measured.
- the crude copolymer was dissolved in 0.1% by weight in a p-chlorophenol solvent to which 2% of ⁇ -pinene was added, and measured by 6CTC.
- Polyoxymethylene copolymer is used on an injection molding machine with a mold clamping pressure of 75 tons. Then, the sample was kept in the cylinder at a cylinder temperature of 240 ° C. for a certain period of time, and the required residence time until the generation of silver strike was measured. The higher the value, the better the thermal stability.
- Continuous injection molding of polyoxymethylene copolymer was performed using an injection molding machine with a mold clamping pressure of 7 ton at a cylinder temperature of 220 and a mold temperature of 70 ° (: molding cycle of about 6 seconds). Then, the number of shots until a mold deposit occurred in the mold was measured.
- the temperature was raised from room temperature at 10 / min, and the melting temperature was measured.
- the above-mentioned two continuous polymerization machines and a terminator mixer having a structure in which a number of screw-like blades are fitted on the shaft instead of the pseudo-triangular plate that meshes with each other,
- an oxymethylene copolymer was produced by using a series-connected continuous polymerization machine which continuously mixes the polymer.
- 80 kg / hr (899 mo1 / r) of trioxane, 1,3-dioxolane in the amount shown in Table 1, and boron trifluoride tereyl esterate were added.
- the shaft rotation speed was set to about 40 rpm
- the first-stage jacket temperature (polymerization temperature) was 65 ° C
- the second-stage and terminator mixer jacket temperatures were each 4 (TC).
- the polymerization yield and the weight loss on heating of the obtained crude copolymer were measured, and the results are shown in Table 1.
- 100 parts by weight of the obtained crude copolymer was mixed with triethyleneglycol-l-bis [3- (3-t-butyl-5-methyl-14-hydroxyphenyl) propionate] (manufactured by Ciba-Geigy Co., Ltd.).
- a crude copolymer was produced in the same manner as in Example 1 except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed to the polymerization time shown in Table 1, and the polymerization yield and the weight loss on heating were reduced. The measurements were made and the results are shown in Table 1. Further, using the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 1, the retention heat stability and mold deposit resistance (MD resistance) were evaluated. The measurements were made and the results are shown in Table 1.
- Example 1 To 100 parts by weight of the crude copolymer obtained in Example 1, triethylene glycol-pis [3- (3-t-butyl-15-methyl-14-hydroxyphenyl) probionate] After adding and mixing 0.3 parts by weight of IRGANOX (trade name, manufactured by Co., Ltd.), the mixture was pelletized and measured in the same manner as in Example 1. Table 1 shows the results.
- a crude copolymer was produced in the same manner as in Example 1 except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed to the polymerization time shown in Table 1, and the polymerization yield and the weight loss on heating were reduced. The measurements were made and the results are shown in Table 1. In addition, using the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 1, the retention heat stability and mold depositability (MD resistance) were measured. The results are shown in Table 1.
- a crude copolymer was produced in the same manner as in Example 1 except that 1,3-dioxolane was changed to the supply amount shown in Table 1, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 1. Further, using the pellets obtained by subjecting the obtained crude copolymer to stabilization treatment in the same manner as in Example 1, the retention heat stability and mold depositability (MD resistance) were measured. Table 1 shows the results.
- a crude copolymer was produced in the same manner as in Example 6 except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed to the polymerization time in Table 1, and the polymerization yield and the weight loss on heating were reduced.
- Table 1 shows the results of the measurement.
- the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 1 were used to determine their retention heat stability and mold deposit resistance (MD resistance). The measurements were made and the results are shown in Table 1.
- MD resistance mold deposit resistance
- Example 6 To 100 parts by weight of the crude copolymer obtained in Example 6, triethylenedalichol-bis [3- (3-t-butyl-5-methyl-14-hydroxyphenyl) probionate] (Cipagagi) After adding and mixing 0.3 parts by weight of Irganox (product name: Irganox), the mixture was pelletized and measured in the same manner as in Example 6. Table 1 shows the results.
- a crude copolymer was produced in the same manner as in Example 6 except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed to the polymerization time in Table 1, and the polymerization yield and the weight loss on heating were reduced. The measurements were made and the results are shown in Table 1. The pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 1 were used to determine the retention heat stability and blind mold deposit properties (MD resistance). The measurements were made and the results are shown in Table 1.
- Example 1 1
- a crude copolymer was produced in the same manner as in Example 1 except that 1,3-dioxolane was changed to the supply amount shown in Table 1, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 1.
- the pellets obtained by subjecting the obtained crude copolymer to stabilization in the same manner as in Example 1 the retention heat stability and the blind mold deposit (MD resistance) ) was measured, and the results are shown in Table 1.
- Comparative Example 3 A crude copolymer was produced in the same manner as in Example 1, except that the amount of 1,3-dioxolane was changed to the supply amount shown in Table 1, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 1. Further, using the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 1, the retention heat stability and mold depositability (MD resistance) were measured. Table 1 shows the results.
- a crude copolymer was produced in the same manner as in Example 12, except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed and the polymerization time was changed as shown in Table 2, and the polymerization yield and the weight loss on heating were reduced. Was measured, and the results are shown in Table 2. Further, using the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 12, the retention heat stability and the mold deposit resistance (MD resistance) was measured, and the results are shown in Table 2.
- MD resistance mold deposit resistance
- Example 12 To 100 parts by weight of the crude copolymer obtained in Example 12 was added triethyleneglycol-l-bis [3- (3-t-butyl-15-methyl-14-hydroxyphenyl) propionate] (Chipagigi After adding and mixing 0.3 part by weight of Irganox (trade name), manufactured by one company, the mixture was pelletized and measured in the same manner as in Example 12. Table 2 shows the results.
- a crude copolymer was produced in the same manner as in Example 12, except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed and the polymerization time was changed as shown in Table 2, and the polymerization yield and the weight loss on heating were reduced. was measured, and the results are shown in Table 2.
- the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 12 the retention heat stability and mold deposit resistance (MD resistance) were measured. Table 2 shows the results.
- MD resistance mold deposit resistance
- a crude copolymer was produced in the same manner as in Example 12 except that 1,3-dioxolane was changed to the supply amount shown in Table 2, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 2.
- the retention heat stability and mold deposit resistance (MD resistance) were measured. Table 2 shows the results.
- Example 2 1 A crude copolymer was produced in the same manner as in Example 17 except that the polymerization time in Table 2 was changed by changing the combination of the pseudo-triangular plates of the continuous polymerization machine, and the polymerization yield and the weight loss on heating were reduced. was measured, and the results are shown in Table 2. In addition, using the pellets obtained by stabilizing the obtained polymer in the same manner as in Example 12, the retention heat stability and mold depositability (MD resistance) were measured. The results are shown in Table 2. Example 2 1
- Example 17 To 100 parts by weight of the crude copolymer obtained in Example 17 was added triethylene glycol-bis [3- (3-t-butyl-15-methyl-14-hydroxyphenyl) propionate] (Chipagigi Brand name: IRGANOX 2 4 5) 0.3 parts by weight After addition and mixing, the mixture was pelletized and measured in the same manner as in Example 17. Table 2 shows the results.
- a crude copolymer was produced in the same manner as in Example 17 except that the combination of the pseudo-triangular plates of the continuous polymerization machine was changed and the polymerization time was changed as shown in Table 2, and the polymerization yield and the weight loss upon heating were reduced. was measured, and the results are shown in Table 2. Further, using the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 12, their retention heat stability and mold deposit resistance (MD resistance) were evaluated. The measurement was performed and the results are shown in Table 2.
- MD resistance mold deposit resistance
- a crude copolymer was produced in the same manner as in Example 12 except that 1,3-dioxolane was changed to the supply amount shown in Table 2, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 2.
- the pellets obtained by stabilizing the obtained crude copolymer in the same manner as in Example 12 the retention heat stability and mold depositability (MD resistance) were measured. Table 2 shows the results.
- a crude copolymer was produced in the same manner as in Example 12 except that 1,3-dioxolane was changed to the supply amount shown in Table 2, and the polymerization yield and the weight loss on heating were measured. The results are shown in Table 2.
- the retention heat stability and mold deposit resistance (MD resistance) were measured. Table 2 shows the results.
- Example 1 889 75.6 8.5 3 92 2.2 60 4000 101 51
- Example 2 889 75.6 8.5 10 94 1.7 70 ⁇ 5000 104 71
- Example 3 889 75.6 8.5 20 98 1.2 70 gu 5000 104 63
- Example 4 889 75.6 8.5 30 99 1.0 70 aku 5000 107 63
- Example 5 889 75.6 8.5 3 92 2.2 40 5000 103 67
- Comparative example 1 889 75.6 8.5 2 94 5.3 20 1000 102 62
- Example 6 889 88.9 10.0 3 91 2.0 60 4000 121 89
- Example 7 889 88.9 10.0 10 93 1.6 70 ⁇ 5000 123 97
- Example 889 88.9 10.0 20 97 1.1 70 ⁇ .5000 123 93
- Example 10 889 88.9 10.0 3 91 2.0 40 5000 118 91
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Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60220479T DE60220479T2 (de) | 2001-03-27 | 2002-03-26 | Poloxymethylencopolymer und daraus hergestelltes formteil |
US10/257,476 US6617416B2 (en) | 2001-03-27 | 2002-03-26 | Polyoxymethylene copolymer and molded article thereof |
KR1020027011916A KR100740812B1 (ko) | 2001-03-27 | 2002-03-26 | 폴리옥시메틸렌 공중합체 및 그 성형품 |
EP02713195A EP1275671B1 (en) | 2001-03-27 | 2002-03-26 | Polyoxymethylene copolymer and molded article thereof |
JP2002576506A JP4172274B2 (ja) | 2001-03-27 | 2002-03-26 | ポリオキシメチレン共重合体およびその成形品 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2001090106 | 2001-03-27 | ||
JP2001-90106 | 2001-03-27 | ||
JP2001-90107 | 2001-03-27 | ||
JP2001090107 | 2001-03-27 |
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Publication Number | Publication Date |
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WO2002077049A1 true WO2002077049A1 (fr) | 2002-10-03 |
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PCT/JP2002/002920 WO2002077049A1 (fr) | 2001-03-27 | 2002-03-26 | Copolymere polyoxymethylene et article moule correspondant |
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Country | Link |
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US (1) | US6617416B2 (ja) |
EP (1) | EP1275671B1 (ja) |
JP (1) | JP4172274B2 (ja) |
KR (1) | KR100740812B1 (ja) |
DE (1) | DE60220479T2 (ja) |
WO (1) | WO2002077049A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008069182A1 (ja) | 2006-12-04 | 2008-06-12 | Mitsubishi Gas Chemical Company, Inc. | オキシメチレン系重合体を含む樹脂材料の接着方法および構造体 |
WO2008069183A1 (ja) | 2006-12-04 | 2008-06-12 | Mitsubishi Gas Chemical Company, Inc. | オキシメチレン系重合体を含む樹脂材料の接着方法および構造体 |
JP2010174236A (ja) * | 2009-02-02 | 2010-08-12 | Mitsubishi Gas Chemical Co Inc | 樹脂組成物及び成形体 |
WO2014189139A1 (ja) * | 2013-05-24 | 2014-11-27 | 三菱瓦斯化学株式会社 | オキシメチレン共重合体の製造方法 |
WO2015008537A1 (ja) | 2013-07-18 | 2015-01-22 | 三菱瓦斯化学株式会社 | オキシメチレン共重合体の製造方法 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1275671B1 (en) * | 2001-03-27 | 2007-06-06 | Mitsubishi Gas Chemical Company, Inc. | Polyoxymethylene copolymer and molded article thereof |
JP2002309061A (ja) * | 2001-04-09 | 2002-10-23 | Mitsubishi Gas Chem Co Inc | ポリオキシメチレン樹脂組成物 |
US20050131124A1 (en) * | 2003-12-15 | 2005-06-16 | Jean-Michel Philippoz | High temperature diesel-resistant polyacetal molded articles |
US20060010098A1 (en) * | 2004-06-04 | 2006-01-12 | Goodnow Timothy T | Diabetes care host-client architecture and data management system |
DE102008018966A1 (de) | 2008-04-16 | 2009-10-22 | Ticona Gmbh | Verfahren zur Herstellung von Oxymethylen-Polymeren und dafür geeignete Vorrichtung |
US20090286905A1 (en) * | 2008-05-19 | 2009-11-19 | E. I. Du Pont De Nemours And Company | Toughened Blends of Cellulose Esters with Polyacetals |
US8226985B2 (en) * | 2010-01-28 | 2012-07-24 | International Business Machines Corporation | Surface modified nanoparticles, methods of their preparation, and uses thereof for gene and drug delivery |
GB2487207B (en) * | 2011-01-12 | 2013-07-31 | Cambridge Display Tech Ltd | Electroluminescence |
US10136845B2 (en) | 2011-02-28 | 2018-11-27 | Abbott Diabetes Care Inc. | Devices, systems, and methods associated with analyte monitoring devices and devices incorporating the same |
EP2546272A1 (en) | 2011-07-15 | 2013-01-16 | Ticona GmbH | Process for producing oxymethylene polymers |
US9902797B2 (en) * | 2012-05-14 | 2018-02-27 | Mitsubishi Gas Chemical Company, Inc. | Method for producing oxymethylene copolymer |
JP6241478B2 (ja) * | 2013-07-12 | 2017-12-06 | 三菱瓦斯化学株式会社 | ポリジオキソランの製造方法 |
CN106795359A (zh) * | 2014-09-05 | 2017-05-31 | Sabic环球技术有限责任公司 | 聚甲醛组合物、 用于制造的方法和由其制备的制品 |
JP2017149854A (ja) * | 2016-02-25 | 2017-08-31 | 旭化成株式会社 | カチオン重合触媒を含む溶液の送液方法 |
JP2017149853A (ja) * | 2016-02-25 | 2017-08-31 | 旭化成株式会社 | ポリアセタール共重合体の製造方法 |
CN117178049A (zh) * | 2021-02-16 | 2023-12-05 | 国际人造丝公司 | 耐介质的聚甲醛聚合物组合物 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07330848A (ja) * | 1994-06-13 | 1995-12-19 | Mitsubishi Gas Chem Co Inc | 熱安定性等に優れたオキシメチレン共重合体の製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6509513A (ja) * | 1964-07-25 | 1966-01-26 | ||
US3883450A (en) * | 1971-08-19 | 1975-05-13 | Hoechst Ag | Process for producing homo- and copolymers of cyclic acetals |
DE2356531C2 (de) * | 1973-11-13 | 1982-06-03 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von festen thermoplastischen Terpolymerisaten des Trioxans |
JPS61275320A (ja) | 1985-05-29 | 1986-12-05 | Mitsubishi Gas Chem Co Inc | オキシメチレン共重合体の製造方法 |
US4751272A (en) | 1986-05-01 | 1988-06-14 | Toray Industries, Inc. | Process for producing oxymethylene copolymer and resinous composition |
JPH0759615B2 (ja) | 1986-11-14 | 1995-06-28 | 三菱瓦斯化学株式会社 | ポリオキシメチレン共重合体の改良された安定化方法 |
KR0146285B1 (ko) * | 1989-08-09 | 1998-08-17 | 마에다 가쓰노스께 | 폴리옥시메틸렌 다원공중합체 및 그의 성형품 |
SG82521A1 (en) * | 1990-10-05 | 2001-08-21 | Asahi Chemical Ind | Polyoxymethylene copolymer and process for producing the copolymer |
WO1995027747A1 (fr) | 1994-04-07 | 1995-10-19 | Asahi Kasei Kogyo Kabushiki Kaisha | Procede d'obtention d'un copolymere d'aldehyde formique stabilise |
JP3257581B2 (ja) | 1994-06-13 | 2002-02-18 | 三菱瓦斯化学株式会社 | オキシメチレン共重合体の製造方法 |
DE19815663B4 (de) * | 1998-04-08 | 2010-09-09 | Ticona Gmbh | Verwendung von Polyoxymethylen-Formmassen mit verbesserter Verarbeitungsstabilität und verminderter Emissionsneigung zur Herstellung von Formteilen |
DE69903370T2 (de) * | 1998-05-14 | 2003-07-03 | Mitsubishi Gas Chemical Co., Inc. | Polyoxymethylenharz-Zusammensetzung |
US5962623A (en) * | 1998-09-08 | 1999-10-05 | Ticona Gmbh | Process for the preparation of polyacetal copolymers |
EP1275671B1 (en) * | 2001-03-27 | 2007-06-06 | Mitsubishi Gas Chemical Company, Inc. | Polyoxymethylene copolymer and molded article thereof |
-
2002
- 2002-03-26 EP EP02713195A patent/EP1275671B1/en not_active Expired - Lifetime
- 2002-03-26 DE DE60220479T patent/DE60220479T2/de not_active Expired - Lifetime
- 2002-03-26 US US10/257,476 patent/US6617416B2/en not_active Expired - Lifetime
- 2002-03-26 JP JP2002576506A patent/JP4172274B2/ja not_active Expired - Lifetime
- 2002-03-26 WO PCT/JP2002/002920 patent/WO2002077049A1/ja active IP Right Grant
- 2002-03-26 KR KR1020027011916A patent/KR100740812B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07330848A (ja) * | 1994-06-13 | 1995-12-19 | Mitsubishi Gas Chem Co Inc | 熱安定性等に優れたオキシメチレン共重合体の製造方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008069182A1 (ja) | 2006-12-04 | 2008-06-12 | Mitsubishi Gas Chemical Company, Inc. | オキシメチレン系重合体を含む樹脂材料の接着方法および構造体 |
WO2008069183A1 (ja) | 2006-12-04 | 2008-06-12 | Mitsubishi Gas Chemical Company, Inc. | オキシメチレン系重合体を含む樹脂材料の接着方法および構造体 |
US8377250B2 (en) | 2006-12-04 | 2013-02-19 | Mitsubishi Gas Chemical Company, Inc. | Method for adhesion of resin material comprising oxymethylene polymer, and structure |
US8617345B2 (en) | 2006-12-04 | 2013-12-31 | Mitsubishi Gas Chemical Company, Inc. | Method for bonding resin materials containing oxymethylene polymer and structures |
JP2010174236A (ja) * | 2009-02-02 | 2010-08-12 | Mitsubishi Gas Chemical Co Inc | 樹脂組成物及び成形体 |
WO2014189139A1 (ja) * | 2013-05-24 | 2014-11-27 | 三菱瓦斯化学株式会社 | オキシメチレン共重合体の製造方法 |
WO2015008537A1 (ja) | 2013-07-18 | 2015-01-22 | 三菱瓦斯化学株式会社 | オキシメチレン共重合体の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100740812B1 (ko) | 2007-07-19 |
DE60220479D1 (de) | 2007-07-19 |
EP1275671B1 (en) | 2007-06-06 |
US6617416B2 (en) | 2003-09-09 |
US20030125512A1 (en) | 2003-07-03 |
EP1275671A1 (en) | 2003-01-15 |
DE60220479T2 (de) | 2008-02-07 |
JPWO2002077049A1 (ja) | 2004-07-15 |
KR20030007459A (ko) | 2003-01-23 |
JP4172274B2 (ja) | 2008-10-29 |
EP1275671A4 (en) | 2003-07-02 |
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