EP0878567A2 - Polyolefin fibres and polyolefin yarns and textile materials thereof - Google Patents
Polyolefin fibres and polyolefin yarns and textile materials thereof Download PDFInfo
- Publication number
- EP0878567A2 EP0878567A2 EP98107669A EP98107669A EP0878567A2 EP 0878567 A2 EP0878567 A2 EP 0878567A2 EP 98107669 A EP98107669 A EP 98107669A EP 98107669 A EP98107669 A EP 98107669A EP 0878567 A2 EP0878567 A2 EP 0878567A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- propylene
- polypropylene
- melt
- polyolefin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 99
- 239000004753 textile Substances 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 title abstract description 3
- 229920001155 polypropylene Polymers 0.000 claims abstract description 191
- -1 polypropylene Polymers 0.000 claims abstract description 175
- 239000004743 Polypropylene Substances 0.000 claims abstract description 136
- 239000000203 mixture Substances 0.000 claims abstract description 61
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims abstract description 58
- 239000004744 fabric Substances 0.000 claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- 239000000178 monomer Substances 0.000 claims abstract description 26
- 239000004711 α-olefin Substances 0.000 claims abstract description 24
- 229920001384 propylene homopolymer Polymers 0.000 claims abstract description 22
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229920005606 polypropylene copolymer Polymers 0.000 claims abstract description 16
- 239000005977 Ethylene Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000010128 melt processing Methods 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 7
- 125000004018 acid anhydride group Chemical group 0.000 claims abstract description 6
- 230000009257 reactivity Effects 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 73
- 239000000155 melt Substances 0.000 claims description 41
- 238000009987 spinning Methods 0.000 claims description 41
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 35
- 229920001577 copolymer Polymers 0.000 claims description 25
- 125000004432 carbon atom Chemical group C* 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 229920001400 block copolymer Polymers 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 150000002976 peresters Chemical class 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 6
- 239000012968 metallocene catalyst Substances 0.000 claims description 6
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 150000002432 hydroperoxides Chemical class 0.000 claims description 5
- 230000005865 ionizing radiation Effects 0.000 claims description 5
- 239000002667 nucleating agent Substances 0.000 claims description 5
- 150000004978 peroxycarbonates Chemical class 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 230000001588 bifunctional effect Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 230000002902 bimodal effect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000002074 melt spinning Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000012442 inert solvent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 150000003254 radicals Chemical class 0.000 abstract description 15
- 150000004985 diamines Chemical class 0.000 abstract description 4
- 150000002009 diols Chemical class 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003999 initiator Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 10
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 10
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- DQCLZKINSGKBFP-UHFFFAOYSA-N 2-tert-butyl-4,6-di(propan-2-yl)phenol Chemical compound CC(C)C1=CC(C(C)C)=C(O)C(C(C)(C)C)=C1 DQCLZKINSGKBFP-UHFFFAOYSA-N 0.000 description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 5
- 235000013539 calcium stearate Nutrition 0.000 description 5
- 239000008116 calcium stearate Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 235000019359 magnesium stearate Nutrition 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- 229960004132 diethyl ether Drugs 0.000 description 4
- 229920001519 homopolymer Polymers 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 description 3
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].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.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- FLQULDKEPHBJJU-UHFFFAOYSA-N (3-methoxybenzoyl) 3-methoxybenzenecarboperoxoate Chemical compound COC1=CC=CC(C(=O)OOC(=O)C=2C=C(OC)C=CC=2)=C1 FLQULDKEPHBJJU-UHFFFAOYSA-N 0.000 description 2
- PRJNEUBECVAVAG-UHFFFAOYSA-N 1,3-bis(ethenyl)benzene Chemical compound C=CC1=CC=CC(C=C)=C1 PRJNEUBECVAVAG-UHFFFAOYSA-N 0.000 description 2
- WEERVPDNCOGWJF-UHFFFAOYSA-N 1,4-bis(ethenyl)benzene Chemical compound C=CC1=CC=C(C=C)C=C1 WEERVPDNCOGWJF-UHFFFAOYSA-N 0.000 description 2
- XSCQJTLZOWDAAJ-UHFFFAOYSA-N 1-butylperoxybutan-1-ol Chemical compound CCCCOOC(O)CCC XSCQJTLZOWDAAJ-UHFFFAOYSA-N 0.000 description 2
- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical compound CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 2
- 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 2
- CWCQMKNAWHSGCQ-UHFFFAOYSA-N 2-cyclohexylethaneperoxoic acid Chemical compound OOC(=O)CC1CCCCC1 CWCQMKNAWHSGCQ-UHFFFAOYSA-N 0.000 description 2
- XAXYTHWQHBSHRO-UHFFFAOYSA-N 3,3-diethylpenta-1,4-diene Chemical compound CCC(CC)(C=C)C=C XAXYTHWQHBSHRO-UHFFFAOYSA-N 0.000 description 2
- BHZUNHXTRRNKST-UHFFFAOYSA-N 3,3-dimethylpenta-1,4-diene Chemical compound C=CC(C)(C)C=C BHZUNHXTRRNKST-UHFFFAOYSA-N 0.000 description 2
- ZXABMDQSAABDMG-UHFFFAOYSA-N 3-ethenoxyprop-1-ene Chemical compound C=CCOC=C ZXABMDQSAABDMG-UHFFFAOYSA-N 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- UUGAMSCIXSHCOR-UHFFFAOYSA-N OOC(=O)C1=CC=CC(CCC=2C=CC=CC=2)=C1[N+]([O-])=O Chemical compound OOC(=O)C1=CC=CC(CCC=2C=CC=CC=2)=C1[N+]([O-])=O UUGAMSCIXSHCOR-UHFFFAOYSA-N 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- FHELEKLDAMMFQH-UHFFFAOYSA-N butyl 4-methoxybenzenecarboperoxoate Chemical compound CCCCOOC(=O)C1=CC=C(OC)C=C1 FHELEKLDAMMFQH-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- AHAREKHAZNPPMI-UHFFFAOYSA-N hexa-1,3-diene Chemical compound CCC=CC=C AHAREKHAZNPPMI-UHFFFAOYSA-N 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- IZYBEMGNIUSSAX-UHFFFAOYSA-N methyl benzenecarboperoxoate Chemical compound COOC(=O)C1=CC=CC=C1 IZYBEMGNIUSSAX-UHFFFAOYSA-N 0.000 description 2
- ZARXZEARBRXKMO-UHFFFAOYSA-N n,n-bis(ethenyl)aniline Chemical compound C=CN(C=C)C1=CC=CC=C1 ZARXZEARBRXKMO-UHFFFAOYSA-N 0.000 description 2
- MMCOUVMKNAHQOY-UHFFFAOYSA-L oxido carbonate Chemical compound [O-]OC([O-])=O MMCOUVMKNAHQOY-UHFFFAOYSA-L 0.000 description 2
- QYZLKGVUSQXAMU-UHFFFAOYSA-N penta-1,4-diene Chemical compound C=CCC=C QYZLKGVUSQXAMU-UHFFFAOYSA-N 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920006301 statistical copolymer Polymers 0.000 description 2
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OGQVROWWFUXRST-FNORWQNLSA-N (3e)-hepta-1,3-diene Chemical compound CCC\C=C\C=C OGQVROWWFUXRST-FNORWQNLSA-N 0.000 description 1
- OXYKVVLTXXXVRT-UHFFFAOYSA-N (4-chlorobenzoyl) 4-chlorobenzenecarboperoxoate Chemical compound C1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1 OXYKVVLTXXXVRT-UHFFFAOYSA-N 0.000 description 1
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- JPUBVXXQKAGTEI-UHFFFAOYSA-N 1-phenylethyl benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(C)OOC(=O)C1=CC=CC=C1 JPUBVXXQKAGTEI-UHFFFAOYSA-N 0.000 description 1
- GOAHRBQLKIZLKG-UHFFFAOYSA-N 1-tert-butylperoxybutane Chemical compound CCCCOOC(C)(C)C GOAHRBQLKIZLKG-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- JZODKRWQWUWGCD-UHFFFAOYSA-N 2,5-di-tert-butylbenzene-1,4-diol Chemical compound CC(C)(C)C1=CC(O)=C(C(C)(C)C)C=C1O JZODKRWQWUWGCD-UHFFFAOYSA-N 0.000 description 1
- FRAQIHUDFAFXHT-UHFFFAOYSA-N 2,6-dicyclopentyl-4-methylphenol Chemical compound OC=1C(C2CCCC2)=CC(C)=CC=1C1CCCC1 FRAQIHUDFAFXHT-UHFFFAOYSA-N 0.000 description 1
- WUHPLKWATBYDFS-UHFFFAOYSA-N 2,6-ditert-butyl-4-(3-methylbutyl)phenol Chemical compound CC(C)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 WUHPLKWATBYDFS-UHFFFAOYSA-N 0.000 description 1
- SCXYLTWTWUGEAA-UHFFFAOYSA-N 2,6-ditert-butyl-4-(methoxymethyl)phenol Chemical compound COCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SCXYLTWTWUGEAA-UHFFFAOYSA-N 0.000 description 1
- RQQWRNIJMXXFMI-UHFFFAOYSA-N 2-methyl-2-prop-2-enylperoxypropane Chemical compound CC(C)(C)OOCC=C RQQWRNIJMXXFMI-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- NOLLYPZAEJVJBX-UHFFFAOYSA-N 2-tert-butyl-4,6-dioctadecylphenol Chemical compound CCCCCCCCCCCCCCCCCCC1=CC(CCCCCCCCCCCCCCCCCC)=C(O)C(C(C)(C)C)=C1 NOLLYPZAEJVJBX-UHFFFAOYSA-N 0.000 description 1
- YFHKLSPMRRWLKI-UHFFFAOYSA-N 2-tert-butyl-4-(3-tert-butyl-4-hydroxy-5-methylphenyl)sulfanyl-6-methylphenol Chemical compound CC(C)(C)C1=C(O)C(C)=CC(SC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 YFHKLSPMRRWLKI-UHFFFAOYSA-N 0.000 description 1
- ACZGCWSMSTYWDQ-UHFFFAOYSA-N 3h-1-benzofuran-2-one Chemical class C1=CC=C2OC(=O)CC2=C1 ACZGCWSMSTYWDQ-UHFFFAOYSA-N 0.000 description 1
- CWTMUDGIRYDDHJ-UHFFFAOYSA-N 4-hexadecoxyphenol Chemical compound CCCCCCCCCCCCCCCCOC1=CC=C(O)C=C1 CWTMUDGIRYDDHJ-UHFFFAOYSA-N 0.000 description 1
- CYHYIIFODCKQNP-UHFFFAOYSA-N 5,7-ditert-butyl-3-(3,4-dimethylphenyl)-3h-1-benzofuran-2-one Chemical compound C1=C(C)C(C)=CC=C1C1C(C=C(C=C2C(C)(C)C)C(C)(C)C)=C2OC1=O CYHYIIFODCKQNP-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- GMTWRAMSPYKECN-UHFFFAOYSA-N [2-(3,5-ditert-butyloctadecyl)-4-hydroxyphenyl] propanoate Chemical compound C(C)(C)(C)C(CCC1=C(C=CC(=C1)O)OC(CC)=O)CC(CCCCCCCCCCCCC)C(C)(C)C GMTWRAMSPYKECN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000005399 allylmethacrylate group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- LYWWMXRIQXRTMV-UHFFFAOYSA-N benzoyl 4-chlorobenzenecarboperoxoate Chemical compound C1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=CC=C1 LYWWMXRIQXRTMV-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UPIWXMRIPODGLE-UHFFFAOYSA-N butyl benzenecarboperoxoate Chemical compound CCCCOOC(=O)C1=CC=CC=C1 UPIWXMRIPODGLE-UHFFFAOYSA-N 0.000 description 1
- ZKERZZMUXBDEOG-UHFFFAOYSA-N butyl ethaneperoxoate Chemical compound CCCCOOC(C)=O ZKERZZMUXBDEOG-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- MNQOTJZCKIJDGG-UHFFFAOYSA-N butylcyclobutane Chemical compound CCCCC1[CH]CC1 MNQOTJZCKIJDGG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003413 degradative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- OGQVROWWFUXRST-UHFFFAOYSA-N hepta-1,3-diene Chemical compound CCCC=CC=C OGQVROWWFUXRST-UHFFFAOYSA-N 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920002959 polymer blend Polymers 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
- QTECDUFMBMSHKR-UHFFFAOYSA-N prop-2-enyl prop-2-enoate Chemical compound C=CCOC(=O)C=C QTECDUFMBMSHKR-UHFFFAOYSA-N 0.000 description 1
- 229920005653 propylene-ethylene copolymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 150000003568 thioethers Chemical class 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
- 239000001993 wax Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
- Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
Definitions
- the invention relates to melt-processed polyolefin fibers and High tenacity and elongation polyolefin yarns, especially non-post-drawn ones Polyolefin fibers and polyolefin yarns, and textile fabrics made therefrom.
- Fibers, yarns and textile fabrics made of polypropylene are known (US 3,092,891; Films, fabrics and nonwovens made of polypropylene ", p.175-189, VDI-Verlag Düsseldorf 1979; Moore, P., Polypropylene Handbook "pp. 350-358, Carl Hanser Verlag Kunststoff 1996).
- the manufacturing process for fibers and yarns based on polypropylene differ in spinning speed and post-treatment of the spun threads.
- the filaments are moving at high speed (500 to 2000 m / min.) Withdrawn from the spinneret. Because with this procedure If the polypropylene macromolecules are not fully oriented, the produced filaments are stretched in a further operation. This mostly takes place in combination with other post-processing steps.
- Comparable conditions for influencing the basic fiber properties also apply to the spunbonded process.
- the filaments are drawn off through the cooling zone either by accelerated downpipe air or compressed air-operated nozzles [Fourne ' , F., Chemiefaser-Textilindustrie 95 (1993), 811-822].
- the undrawn filaments produced are deposited in a flat, disordered form on a sieve-shaped conveyor belt and further processed into spunbonded fabric in a post-processing step by applying thermal bonding (by means of calender strengthening) or needling processes.
- a special variant of the nonwoven production is the blown fiber (melt-blow) spinning technology, in which the thread formation takes place with the application of a highly heated devis stream around the capillary nozzle openings [Fourne ' , F. Chemical fibers / textile industry 81 (1979), 445-449].
- the air flow divides the molten polymer thread into many small individual fibers with a very small diameter and at the same time causes the individual threads to stretch.
- the further processing of the fibers or filaments deposited on the wire conveyor belt is carried out in accordance with the spunbond technology.
- High-strength filament yarns In the production of high-strength filament yarns [Fully Drawn Yarn (FDY)], the filaments are drawn off from the spinneret with the help of godets and processed in downstream devices consisting of a stretching device and a winder. High-strength filament yarns can be produced using both the short spinning process and the fast spinning process. In addition to stretching, the Bulked continuous filament "process a three-dimensional crimp by texturing devices [Bussmann, M., Chemiefaser / Textilindustrie 35 (1986) 87, 668-672].
- the properties of the fibers, yarns and textile fabrics are determined by the Manufacturing process and the polypropylene used determined.
- nucleating agents leads to a decrease in the strength of the Fibers (Richeson, G., ANTEC'96, 2305-2311).
- Formulations with fillers such as calcium carbonate [Nago, S., J. Appl. Polymer Sci. 62 (1996), 81-86] or poly (methylsesquioxane) [Nago, S., J. Appl. Polymer sci. 61 (1996), 2355-2359] after spinning and stretching microporous fibers.
- Fibers with increased heat resistance can be achieved by spinning polypropylene blends with polyethylene terephthalate [Qin, Y., J. Appl. Polymer sci. 61 (1966), 1287-1292] or with Prepare liquid crystalline polymers [Qin, Y., Polymer 34 (1993), 3597].
- Polypropylene fibers have the disadvantage of a relatively low tensile elongation.
- An addition of elastomers such as ethylene-propylene rubber or ethylene-propylene-diene rubber leads to an increase in stretch, but at the same time a sharp drop in the strength of the polypropylene fibers and polypropylene yarns.
- the object of the present invention was to develop Polyolefin fibers and polyolefin yarns of high strength and elongation, in particular of undrawn polyolefin fibers and polyolefin yarns, and therefrom manufactured textile fabrics.
- Propylene polymers A) are propylene polymers by radical coupling reactions or polymer-analogous reactions of functionalized polypropylenes were manufactured.
- the starting products for the modified propylene polymers A) are preferred Propylene homopolymers as well as copolymers of propylene and ⁇ -olefins 2 to 18 carbon atoms and mixtures of the polypropylenes mentioned.
- Especially preferred starting products for these modified propylene polymers are polypropylene - Homopolymers, statistical propylene - copolymers, propylene block copolymers and / or statistical propylene block copolymers.
- the modified propylene polymers produced by polymer-analogous reactions A) can be realized by implementing functionalized polypropylenes with multifunctional ones Make connections of opposite reactivity.
- the modified propylene polymers A) can also by hydrolytic Condensation of polypropylenes containing hydrolyzable silane groups, getting produced. Examples are those in DE 4107635 or US 47 14 716 described products.
- the polypropylenes used for the production of this preferred modified propylene polymer A) consist in particular of propylene homopolymers and / or copolymers of propylene and ⁇ -olefins having 2 to 18 carbon atoms and of mixtures of the polypropylenes mentioned.
- Polypropylene particles of polypropylenes with a bimodal molar mass distribution which were produced in a reactor cascade using Ziegler-Natta catalysts or metallocene catalysts, with a molar mass weight average M w of 500,000 to 1,500,000 g / mol and a molar mass number average M n of 25,000 to 100,000 are particularly preferred g / mol and M w / M n values from 5 to 60, preferably with weight average molecular weights M w from 600,000 to 1,000,000 g / mol, number average molecular weights M n from 30,000 to 100,000 g / mol and M w / M n - Values from 15 to 35.
- the heating and melting of the polypropylene particles takes place in which the acyl peroxides, alkyl peroxides, hydroperoxides and / or peresters as thermally disintegrating radical formers and the bifunctionally unsaturated monomers are sorbed under an atmosphere of volatile bifunctionally unsaturated Monomers preferably in continuously operating kneaders or extruders, preferably in twin-screw oars.
- the propylene polymers B) which are present as non-modified propylene polymers B) in the conventional propylene polymers 1) which may be present in the polyolefin fibers and polyolefin yarns and the textile fabrics made therefrom preferably consist of propylene homopolymers with an M w / M n ratio of 2 to 4.5 and / or copolymers Propylene and ⁇ -olefins with 2 to 18 carbon atoms and from mixtures of the polypropylenes mentioned.
- the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 2) contained polyolefin mixture of crystalline copolymers and Elastic copolymers are, for example, those in EP 400333 or EP 472946 described polymer mixtures.
- the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin fibers and fabric made therefrom, optionally as Component 3) contained amorphous polypropylenes are in particular stereoblock polypropylenes, which, for example, using highly active, metal oxide fixed Ziegler-Natta catalysts [Collette, J., Macromolecules 22 (1989), 3851-3858; DE 2830160] or soluble Ziegler-Natta catalysts [de Candia, F., Macromol. Chem. 189 (1988), 815-821], optionally under the following Reactive modification (EP 636863) and / or degradation (EP 640 850) will.
- the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 4) contained non-isotactic propylene homopolymers are in particular elastomeric high molecular propylene homopolymers, for example those in Products described in EP 475 307 or EP 475 308.
- Unmodified propylene polymers B) are particularly preferred in the polyolefin fibers and polyolefin yarns and textile fabrics made therefrom Polyolefin blends that combine several of the unmodified polyolefin components 1) to 4) included.
- auxiliaries contained are preferably 0.01 to 2.5% by mass of stabilizers, 0.1 to 1 % Antistatic, 0.2 to 3% pigment, 0.05 to 1% nucleating agent and / or 0.01 to 1 mass% processing aid.
- These excipients can already be used in the components used in melt processing A) and / or B) can be contained or additionally added to these components.
- HALS sterically hindered amines
- Suitable phenolic antioxidants are 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butyl-4-isoamylphenol, 2,6, -di-tert-butyl-4-ethylphenol, 2-tert-butyl-4,6-diisopropylphenol, 2,6-dicyclopentyl-4-methylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, 2-tert-butyl-4,6-dioctadecylphenol, 2,5-di-tert-butylhydroquinone, 2,6-di-tert-butyl-4,4-hexadecyloxyphenol, 2,2'-methylene-bis (6-tert-butyl-4-methylphenol), 4,4'-thio-bis- (6-tert-butyl-2-methylphenol), 3 (3,5-d
- 5,7-di-tert-butyl-3- (3,4-dimethylphenyl) -3H-benzofuran-2-one is a benzofuranone derivative suitable.
- Calcium stearate, magnesium stearate and / or can be used as processing aids Waxes are used.
- Diphenyl-heated melt pumps for the melts heated to 240-310 ° C used.
- the Fibers drawn off according to the invention with the aid of high-speed godets and in Successor devices from stretching unit, crimper, fixing unit and cutting machine processed by stretching, crimping and cutting, being in Short spinning lines (slow spinning) with numbers of nozzle holes from 2000 to 70000 Hole / nozzle the thread take-off speeds to 60 to 250 m / min and in Long spinning systems (conventional high-speed spinning systems) with numbers of nozzle holes the thread take-up speeds from 800 to 3500 holes / nozzle 350 to 4000 m / min can be set.
- the crimping takes place in a stuffer box, at Long spinning lines over crimper, the crimp is two-dimensional.
- the fibers from the polypropylene mixtures are drawn off according to the invention with the aid of high-speed godets in successor devices from stretching device, hot air texturing chamber, relaxing device, tangle device and winder by stretching, hot air testing, crimping and tangling at thread take-off speeds of 1000 to 4000 m / min further processed, the tangling saves a separate twisting process.
- the threads from the polypropylene mixtures are drawn off according to the invention with the aid of high-speed godets in successor devices consisting of stretching device and winder, in short spinning systems the thread take-off speeds are set to 60 to 450 m / min and in long spinning systems the thread take-off speeds are set to 350 to 4000 m / min.
- the threads are made from Polypropylene mixtures according to the invention in successor devices Cables and winders processed further.
- Filament yarn from Pre-oriented yarn type ( Preoriented yarn "type) with capillary titers from 2 to 6 dtex and total titers up to 500 dtex are produced according to the invention by further processing the fibers from the polypropylene mixtures in downstream devices from a deflection system and winder and optionally interposed godets at thread take-off speeds of 1000 to 5000 m / min.
- Textile fabrics in the form of nonwovens are according to the invention Extraction of the fibers from the polypropylene mixtures in the blow duct using air by processing the threads into spunbonded nonwovens in successor devices Screen conveyor belt, calender or needling device and winder Flat, disorderly laying down of the fibers on the sieve-shaped conveyor belt and application of thermal bonding or needling processes to achieve the required strength and dimensional stability.
- Opposite staple fiber fleeces these spunbonded fabrics have a significantly cheaper lengthways / crossways Strength ratio.
- application forms a special variant of nonwoven production a highly heated air flow around the capillary nozzle openings during the extrusion of the Fibers from the polypropylene mixtures from the capillary tool in the Blow duct.
- the air flow stretches the melted thread out of the Polyolefin mixture with simultaneous division into many individual vials Fiber diameters from 0.5 to 12 ⁇ m.
- the further processing of the on the The screen conveyor belt of the deposited fibers is analogous to the spunbond production.
- meltblowing variant of nonwoven production from the Polyolefin blends is the temperature and shear rate profile of the Melt processing facility, which must be set so that the Melt a degradative reduction in viscosity to a melt index 150g / 10 min at 230 ° C / 2, 16 kp.
- Preferred extruders (1) for melting the polyolefin mixtures are Single screw extruder with high homogenization effect with screw lengths of 28 up to 36 D, preferably with flanged static or dynamic mixers, used.
- Preferred dimensions of the spinnerets (3) are spinnerets with inner diameters from 0.35 to 1.5 mm.
- the take-off device (5) can be done directly via the winder (6) or under Intermediate switching of high-speed godets.
- Preferred take-off speeds for capillary titers from 2.5 to 5 dtex are 2500 to 3500 m / min.
- a polyolefin mixture which consists of 99 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (melt index 5.5 g / 10 min at 230 ° C / 2.16 kg, quotient of the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified Polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2% by mass of calcium stearate (auxiliaries in each case to the sum of the propylene polymers) at a melt temperature of 275 ° C in Extruder
- the melt becomes the with the spinning pump Spinnerets transferred and at a temperature of the spinnerets of 292 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
- the resulting undrawn polypropylene yarn has a total titer of 252 dTex, a tensile strength of 19.5 cN / tex and an elongation of 202%.
- a polyolefin mixture which consists of 89 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of an unmodified heterophasic statistical propylene-ethylene block copolymer (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (Melting indices 5.5 g / 10 min at 230 ° C / 2, 16 kg, quotient from the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.25 mass% bis - 2,2,6,6 - te
- the melt is with the Spinning pump transferred to the spinnerets and at a temperature of the spinnerets of 275 ° C through the blow shaft, which with compressed air has a temperature of 20 ° C is cooled, with a take-off speed of 3000 m / min high-speed godets removed and wound up.
- the resulting undrawn polypropylene yarn has a total titer of 253 dTex, a tensile strength of 18.5 cN / tex and an elongation of 195%.
- a polypropylene compound that is made 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 0.2% by mass of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl)] propionate, 0.2 mass% bis - 2,2,6,6 tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliary substances in each case based on the Polypropylene homopolymer) at a melt temperature of 280 ° C in the extruder melted.
- the melt becomes the spinnerets with the spinning pump transferred and at a temperature of the spinnerets of 290 ° C by the Blow duct, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min due to high-speed godets stripped and wound up.
- the resulting undrawn polypropylene yarn has a total titer of 254 dtex, a tensile strength of 23.7 cN / tex and an elongation of 124%.
- a powdery polypropylene homopolymer (melt index of 0.2 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.55 mm) is continuously metered into a continuous heatable continuous mixer.
- the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary is held for 6 min at 45 ° C.
- the resulting modified polypropylene has an IR spectroscopic determined bound butadiene content of 1.0% by weight and a Melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp.
- a polypropylene mixture is made up of 99 mass% of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass % of a modified polypropylene (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, content of bound butadiene 1.0% by weight), 0.25% by mass of 2-tert-butyl-4,6 -diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2 mass% calcium stearate (auxiliaries based in each case on the sum of the propylene polymers) melted in the extruder at a melt temperature of 272 ° C.
- the melt is transferred to the spinnerets with the melt pump and, at a temperature of the spinnerets of 290 ° C., is drawn off through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C., at a take-off speed of 3000 m / min by high-speed godets and wound up.
- the resulting filament yarn from Pre-oriented yarn type has a total titer of 252 dtex, a tensile strength of 19.5 cN / tex and a tensile elongation of 202%.
- a polypropylene compound that is 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C./2.16 kg), 0.2 mass% of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxy-phenyl)] propionate, 0.2 mass% bis - 2,2,6,6-tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliaries in each case based on the Polypropylene homopolymer) at a melt temperature of 275 ° C in the plasticizing extruder melted.
- the melt becomes the melt with the melt pump Spinnerets transferred and at a temperature of the spinnerets of 290 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
- the resulting filament yarn from Pre-oriented yarn type has a total titer of 254 dtex, a tensile strength of 23.7 cN / tex and a tensile elongation of 124%.
- a powdery random polypropylene copolymer (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.85 mm) is continuously metered into a continuous heatable continuous mixer. Furthermore, 0.05% by weight of hydrotalcite, 0.05% by weight of calcium stearate and 0.45% by weight of tert-butyl peroxybenzoate, in each case based on the polypropylene copolymer, are metered continuously into the continuous mixer. With homogeneous mixing at 70 ° C., the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary material is at a residence time of 4 min at 70 ° C.
- the resulting modified polypropylene copolymer has a content of bound divinylbenzene, determined by IR spectroscopy, of 0.32% by weight and a melt index of 1.35 g / 10 min at 230 ° C./2.16 kp.
- a polypropylene mixture is made up of 89% by mass of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of a reactor blend (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), consisting of a crystalline propylene-ethylene copolymer and an elastic ethylene-propylene copolymer, 1 mass% of one modified polypropylene (content of bound divinylbenzene of 0.32 mass%, melt index of 1.35 g / 10 min at 230 ° C / 2.16 kp), 0.25 mass% of 2-tert-butyl-4,6-diisopropylphenol , 0.25% by mass
- the melt is transferred to the spinnerets with the melt pump and drawn off at a spinning nozzle temperature of 285 ° C through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C, at a take-off speed of 3000 m / min by high-speed godets and placed in a jug.
- the discarded polypropylene thread is used for the discontinuous production of staple fibers in a laboratory post-processing line consisting of stretching unit, crimper and Cutting machine with 850% stretch and two-dimensional crimp subjected and cut into segments.
- a non-crimped sample (thread diameter 0.2 mm) has a tensile strength of 540 MPa and an elongation of 46%.
- the fiber segments are further processed on a laboratory calender by thermal bonding to form a nonwoven fabric that has a basis weight of 60 g / m 2 and a longitudinal / transverse strength ratio of 2.6: 1.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
Description
Die Erfindung betrifft durch Schmelzeverarbeitung hergestellte Polyolefinfasern und Polyolefingarne hoher Festigkeit und Dehnung, insbesondere nichtnachverstreckte Polyolefinfasern und Polyolefingarne, und daraus hergestellte textile Flächengebilde.The invention relates to melt-processed polyolefin fibers and High tenacity and elongation polyolefin yarns, especially non-post-drawn ones Polyolefin fibers and polyolefin yarns, and textile fabrics made therefrom.
Fasern, Garne und textile Flächengebilde aus Polypropylen sind bekannt (US 3 092
891; Folien, Gewebe und Vliesstoffe aus Polypropylen", S.175-189, VDI-Verlag
Düsseldorf 1979; Moore, P.,
Die Herstellungsverfahren für Fasern und Garne auf Basis von Polypropylen unterscheiden sich durch Spinngeschwindigkeit und Nachbehandlung der Spinnfäden.The manufacturing process for fibers and yarns based on polypropylene differ in spinning speed and post-treatment of the spun threads.
Bekannte Herstellungsverfahren für Polypropylen-Stapelfasern durch Schmelzspinnen sind das Schnellspinnverfahren und das Kurzspinnverfahren.Known manufacturing processes for polypropylene staple fibers by melt spinning are the fast spinning process and the short spinning process.
Bei der Herstellung von Stapelfasern auf Basis von Polypropylen nach dem Schnellspinnverfahren, bereits bekannt als Schnellspinnprozeß für das Ausspinnen von Polyester- oder Polyamidfäden, werden die Filamente mit hoher Geschwindigkeit (500 bis 2000 m/min.) von der Spinndüse abgezogen. Da bei diesem Verfahren keine vollständige Orientierung der Polypropylen-Makromoleküle erfolgt, müssen die hergestellten Filamente in einem weiteren Arbeitsgang verstreckt werden. Dies erfolgt zumeist in Kombination mit anderen Nachverarbeitungsschritten. In the production of staple fibers based on polypropylene using the fast spinning process, already known as a rapid spinning process for spinning Polyester or polyamide threads, the filaments are moving at high speed (500 to 2000 m / min.) Withdrawn from the spinneret. Because with this procedure If the polypropylene macromolecules are not fully oriented, the produced filaments are stretched in a further operation. This mostly takes place in combination with other post-processing steps.
Bei der Herstellung von Stapelfasern auf Basis von Polypropylen nach dem Kurzspinnverfahren wird bei sehr niedrigen Spinngeschwindigkeiten ( 30 bis 150 m/min) gearbeitet, dadurch können die Kühlzonen der Spinnanlagen sehr kurz dimensioniert werden [ Schweitzer, A., Chemiefasern/Textilindustrie 88(1986), 671-674]. Die niedrigen Spinngeschwindigkeiten ermöglichen ein direktes kontinuierliches Zuführen der zu Spinnkabeln zusammengeführten Filamente auf die Streck- und Nachfolgeeinrichtungen.In the production of staple fibers based on polypropylene using the short spinning process at very low spinning speeds (30 to 150 m / min) worked, so the cooling zones of the spinning systems can be dimensioned very short [Schweitzer, A., Chemiefaser / Textilindustrie 88 (1986), 671-674]. The low spinning speeds allow a direct continuous Feeding the filaments brought together into spinning cables on the stretching and Succession facilities.
Nach der Technologie des Schnellspinnverfahrens erfolgt ebenfalls das
Vergleichbare Verhältnisse zur Beeinflussung der Fasergrundeigenschaffen gelten auch für das Spinnvliesverfahren. Beim Spinnvliesverfahren werden die Filamente durch die Kühlzone entweder durch beschleunige Fallrohrluft oder preßluftbetriebene Düsen abgezogen [Fourne', F., Chemiefaser-Textilindustrie 95(1993), 811-822]. Die hergestellten unverstreckten Filamente werden in flächiger, ungeordneter Form auf einem siebförmigen Transportband abgelegt und in einem Nachverarbeitungsschritt durch Applikation von Thermobondier- (mittels Kalanderverfestigung) oder Vernadelungsprozessen zum Spinnvlies weiterverarbeitet.Comparable conditions for influencing the basic fiber properties also apply to the spunbonded process. In the spunbonded nonwoven process, the filaments are drawn off through the cooling zone either by accelerated downpipe air or compressed air-operated nozzles [Fourne ' , F., Chemiefaser-Textilindustrie 95 (1993), 811-822]. The undrawn filaments produced are deposited in a flat, disordered form on a sieve-shaped conveyor belt and further processed into spunbonded fabric in a post-processing step by applying thermal bonding (by means of calender strengthening) or needling processes.
Eine spezielle Variante der Vliesherstellung stellt die Blasfaser- (Melt-Blow) - Spinntechnologie dar, bei der die Fadenbildung unter Applikation eines hocherhitzten Luttstromes um die Kapillardüsenöffnungen erfolgt [Fourne',F. Chemiefasern/Textilindustrie 81(1979), 445-449]. Der Luftstrom zerteilt den schmelzeflüssigen Polymerfaden in viele kleine Einzelfäserchen mit sehr geringem Durchmesser und bewirkt gleichzeitig eine Verstreckung der Einzelfäden. Die Weiterverarbeitung der auf dem Siebtransportband abgelegten Fasern oder Filamente erfolgt entsprechend der Spinnvliestechnologie.A special variant of the nonwoven production is the blown fiber (melt-blow) spinning technology, in which the thread formation takes place with the application of a highly heated lutte stream around the capillary nozzle openings [Fourne ' , F. Chemical fibers / textile industry 81 (1979), 445-449]. The air flow divides the molten polymer thread into many small individual fibers with a very small diameter and at the same time causes the individual threads to stretch. The further processing of the fibers or filaments deposited on the wire conveyor belt is carried out in accordance with the spunbond technology.
Bei der Herstellung hochfester Filamentgarne [Fully Drawn Yarn (FDY) ] werden die
Filamente mit Hilfe von Galetten aus der Spinndüse abgezogen und in
Nachfolgeeinrichtungen aus Reckeinrichtung und Wickler weiterverarbeitet. Die Herstellung
hochfester Filamentgarne kann sowohl nach dem Kurzspinnverfahren als
auch nach dem Schnellspinnverfahren erfolgen. Zusätzlich zur Verstreckung erfolgt
beim
Die Eigenschaften der Fasern, Garne und textilen Flächengebilde werden durch das Herstellungsverfahren und die eingesetzten Polypropylene bestimmt.The properties of the fibers, yarns and textile fabrics are determined by the Manufacturing process and the polypropylene used determined.
Ein Zusatz von Nukleierungsmitteln führt zu einem Absinken der Festigkeit der Fasern (Richeson, G., ANTEC'96, 2305-2311). Rezepturen mit Füllstoffen wie Calciumcarbonat [Nago, S., J. Appl.Polymer Sci. 62(1996),81-86] oder Poly(methylsesquioxan) [Nago, S., J. Appl. Polymer Sci. 61(1996), 2355-2359] ergeben nach Verspinnen und Verstreckung mikroporöse Fasern. Fasern erhöhter Wärmeformbeständigkeit lassen sich durch Verspinnen von Polypropylen-Blends mit Polyethylenterephthalat [Qin, Y., J. Appl. Polymer Sci. 61(1966), 1287-1292] oder mit flüssigkristallinen Polymeren [Qin, Y., Polymer 34(1993), 3597] herstellen.The addition of nucleating agents leads to a decrease in the strength of the Fibers (Richeson, G., ANTEC'96, 2305-2311). Formulations with fillers such as calcium carbonate [Nago, S., J. Appl. Polymer Sci. 62 (1996), 81-86] or poly (methylsesquioxane) [Nago, S., J. Appl. Polymer sci. 61 (1996), 2355-2359] after spinning and stretching microporous fibers. Fibers with increased heat resistance can be achieved by spinning polypropylene blends with polyethylene terephthalate [Qin, Y., J. Appl. Polymer sci. 61 (1966), 1287-1292] or with Prepare liquid crystalline polymers [Qin, Y., Polymer 34 (1993), 3597].
Fasern aus Polypropylenen besitzen den Nachteil einer relativ niedrigen Zugdehnung. Ein Zusatz von Elastomeren wie Ethylen-Propylen-Kautschuk oder Ethylen-Propylen-Dien-Kautschuk führt zu einer Erhöhung der Dehnung, aber gleichzeitig zu einem starken Abfall der Festigkeit der Polypropylenfasern und Polypropylengarne. Polypropylene fibers have the disadvantage of a relatively low tensile elongation. An addition of elastomers such as ethylene-propylene rubber or ethylene-propylene-diene rubber leads to an increase in stretch, but at the same time a sharp drop in the strength of the polypropylene fibers and polypropylene yarns.
Die Aufgabe der vorliegenden Erfindung bestand in der Entwicklung von Polyolefinfasern und Polyolefingarnen hoher Festigkeit und Dehnung, insbesondere von nichtnachverstreckten Polyolefinfasern und Polyolefingarnen, und daraus hergestellten textilen Flächengebilden.The object of the present invention was to develop Polyolefin fibers and polyolefin yarns of high strength and elongation, in particular of undrawn polyolefin fibers and polyolefin yarns, and therefrom manufactured textile fabrics.
Die erfindungsgemäße Aufgabe wurde durch Schmelzeverarbeitung hergestellte
Polyolefinfasern und Polyolefingarne hoher Festigkeit und Dehnung, insbesondere
nichtnachverstreckte Polyolefinfasern und Polyolefingarne mit Kapillartitern von 1 bis
10 dtex und Zugdehnungen über 130% bei Zugfestigkeiten von mindestens 15
cN/tex, und daraus hergestellten textilen Flächengebilden gelöst, wobei die Polyolefinfasern
und Polyolefingarne und daraus hergestellte textile Flächengebilde
erfindungsgemäß
entweder aus Polypropylenmischungen bestehen,
die einerseits aus
und andererseits aus
oder nur aus nichtmodifizierten Propylenpolymeren B) bestehen, wobei die Komponenten 3) und/oder 4) in Anteilen von 5 bis 50 Masse% und die verbleibenden Komponenten im Gemisch von 95 bis 50 Masse% enthalten sind,
und wobei weiterhin in den Polyolefinfasern und Polyolefingarnen und daraus hergestellten textilen Flächengebilden 0,01 bis 5 Masse% Hilfsstoffe, bezogen auf die Polyolefine, enthalten sein können. The object of the invention was achieved by melt processing polyolefin fibers and polyolefin yarns of high strength and elongation, in particular non-post-stretched polyolefin fibers and polyolefin yarns with capillary titers of 1 to 10 dtex and tensile strains of over 130% at tensile strengths of at least 15 cN / tex, and textile fabrics produced therefrom, the Polyolefin fibers and polyolefin yarns and textile fabrics made therefrom according to the invention
either consist of polypropylene mixtures,
the one out
and on the other hand
or consist only of unmodified propylene polymers B), components 3) and / or 4) being present in proportions of 5 to 50% by mass and the remaining components in a mixture of 95 to 50% by mass,
and wherein the polyolefin fibers and polyolefin yarns and textile fabrics made therefrom may further contain 0.01 to 5% by weight of auxiliaries, based on the polyolefins.
Die in den Polyolefinfasern und Polyolefingarnen hoher Festigkeit und Dehnung und daraus hergestellten textilen Flächengebilden gegebenenfalls enthaltenen modifizierten Propylenpolymere A) sind Propylenpolymere, die durch radikalische Kopplungsreaktionen oder polymeranaloge Umsetzungen funktionalisierter Polypropylene hergestellt wurden.The high strength and elongation and in the polyolefin fibers and polyolefin yarns modified textile fabrics produced therefrom, if any, contain any modified ones Propylene polymers A) are propylene polymers by radical coupling reactions or polymer-analogous reactions of functionalized polypropylenes were manufactured.
Die Ausgangsprodukte für die modifizierten Propylenpolymere A) sind bevorzugt
Propylen-Homopolymere als auch aus Copolymere aus Propylen und α-Olefinen mit
2 bis 18 C-Atomen sowie Mischungen der genannten Polypropylene. Besonders
bevorzugte Ausgangsprodukte für diese modifizierten Propylenpolymere sind Polypropylen
- Homopolymere, statistische Propylen - Copolymere, Propylen-Blockcopolymere
und/oder statistische Propylen-Blockcopolymere.The starting products for the modified propylene polymers A) are preferred
Propylene homopolymers as well as copolymers of propylene and α-
Beispiele für diese durch radikalische Kopplungsreaktionen erzeugten modifizierten Propylenpolymere A) sind:
- modifizierte Polypropylene durch Umsetzung von Polypropylenen mit Bismaleimidoverbindungen in der Schmelze (EP 574 801 ; EP 574804),
- modifizierte Polypropylene durch Behandlung von Polypropylenen mit mehrfunktionell ethylenisch ungesättigten Monomeren unter Einwirkung ionisierender Strahlung (EP 678527),
- modifizierte Polypropylene durch Behandlung von Polypropylenen mit mehrfunktionell ethylenisch ungesättigten Monomeren in Gegenwart von Peroxiden in der Schmelze (EP 688817; EP 450342).
- modified polypropylenes by reacting polypropylenes with bismaleimido compounds in the melt (EP 574 801; EP 574804),
- modified polypropylenes by treating polypropylenes with polyfunctionally ethylenically unsaturated monomers under the action of ionizing radiation (EP 678527),
- modified polypropylenes by treating polypropylenes with polyfunctionally ethylenically unsaturated monomers in the presence of peroxides in the melt (EP 688817; EP 450342).
Die durch polymeranaloge Umsetzungen erzeugten modifizierten Propylenpolymere A) lassen sich durch Umsetzung funktionalisierter Polypropylene mit mehrfunktionellen Verbindungen entgegengesetzter Reaktivität herstellen.The modified propylene polymers produced by polymer-analogous reactions A) can be realized by implementing functionalized polypropylenes with multifunctional ones Make connections of opposite reactivity.
Beispiele für durch polymeranaloge Umsetzungen erzeugte modifizierte Propylenpolymere A) sind:
- modifizierte Polypropylene durch Umsetzung von Maleinsäureanhydridgepfropftem Polypropylen mit Diaminen oder Polyglycolen (EP 177401; JP 08 176 365),
- modifizierte Polypropylene durch Umsetzung von Säure- oder Säureanhydridgruppen enthaltenden Polypropylenen mit Epoxy-, Hydroxy- oder Aminogruppen enthaltenden Polymeren (EP 307684; EP 299486).
- modified polypropylenes by reacting polypropylene grafted with maleic anhydride with diamines or polyglycols (EP 177401; JP 08 176 365),
- modified polypropylenes by reacting polypropylenes containing acid or acid anhydride groups with polymers containing epoxy, hydroxyl or amino groups (EP 307684; EP 299486).
Die modifizierten Propylenpolymere A) können ebenfalls durch hydrolytische Kondensation von Polypropylenen, die hydrolysierbare Silangruppen enthalten, hergestellt werden. Beispiele bilden die in DE 4107635 oder US 47 14 716 beschriebenen Produkte.The modified propylene polymers A) can also by hydrolytic Condensation of polypropylenes containing hydrolyzable silane groups, getting produced. Examples are those in DE 4107635 or US 47 14 716 described products.
Für die Polyolefinfasern und Polyolefingarne und daraus hergestellten textilen
Flächengebilde werden als modifizierten Propylenpolymere A), die durch Behandlung
von Propylen-Homopolymeren und/oder Copolymeren aus Propylen und Ethylen
bzw. α-Olefinen mit 4 bis 18 C-Atomen sowie von Mischungen der genannten
Polypropylene mit mehrfunktionell ethylenisch ungesättigten Monomeren in Gegenwart
von thermisch zerfallenden Radikabildnern hergestellt wurden, insbesondere
solche modifizierte Propylenpolymere bevorzugt, die nach einem kontinuierlichen
Verfahren hergestellt worden sind, bei dem
und bei dem vor dem Verfahrensschritt 1) und/oder 5) und /oder vor bzw. während des Verfahrensschrittes 3) und/oder 4) als weitere Hilfsstoffe 0,01
and in which before the process step 1) and / or 5) and / or before or during process step 3) and / or 4) as further auxiliaries 0.01 to 2.5% by mass of stabilizers, 0.1 to 1% by mass Antistatic agents, 0.2 to 3 mass% of pigments, 0.05 to 1 mass% of nucleating agent and / or 0.01 to 5 mass% of processing aids, based on the polypropylene used, have been added.
Die für die Herstellung dieses bevorzugten modifizierten Propylenpolymeren A) eingesetzten Polypropylene bestehen insbesondere aus Propylen-Homopolymeren und/oder Copolymeren aus Propylen und α-Olefinen mit 2 bis 18 C-Atomen sowie aus Mischungen der genannten Polypropylene. Besonders bevorzugt werden Polypropylenpartikel aus Polypropylenen mit bimodaler Molmassenverteilung, die in einer Reaktorkaskade unter Einsatz von Ziegler-Natta-Katalysatoren oder Metallocenkatalysatoren hergestellt wurden, mit Molmassen-Gewichtsmitteln Mw von 500000 bis 1500000 g/mol, Molmassen-Zahlenmitteln Mn von 25000 bis 100000 g/mol und Mw / Mn -Werten von 5 bis 60, bevorzugt mit Molmassen-Gewichtsmitteln Mw von 600000 bis 1000000 g/mol, Molmassen-Zahlenmitteln Mn von 30000 bis 100000 g/mol und Mw / Mn -Werten von 15 bis 35.The polypropylenes used for the production of this preferred modified propylene polymer A) consist in particular of propylene homopolymers and / or copolymers of propylene and α-olefins having 2 to 18 carbon atoms and of mixtures of the polypropylenes mentioned. Polypropylene particles of polypropylenes with a bimodal molar mass distribution, which were produced in a reactor cascade using Ziegler-Natta catalysts or metallocene catalysts, with a molar mass weight average M w of 500,000 to 1,500,000 g / mol and a molar mass number average M n of 25,000 to 100,000 are particularly preferred g / mol and M w / M n values from 5 to 60, preferably with weight average molecular weights M w from 600,000 to 1,000,000 g / mol, number average molecular weights M n from 30,000 to 100,000 g / mol and M w / M n - Values from 15 to 35.
Beispiele für die bei der Herstellung dieses bevorzugten modifizierten Propylenpolymeren A) eingesetzten thermisch zerfallenden Radikalbildner sind :
- Acylperoxide wie Benzoylperoxid, 4-Chlorbenzoylperoxid, 3-Methoxybenzoylperoxid und/oder Methylbenzoylperoxid;
- Alkylperoxide wie Allyl-tert.butylperoxid, 2,2-Bis(tert.butylperoxybutan), 1,1-Bis-(tert.butylperoxi)-3,3,5-trimethylcyclohexan, n-Butyl-4,4-bis(tert.butylperoxi)valerat, Diisopropylaminomethyl-tert.amylperoxid, Dimethylaminomethyl-tert.amylperoxid, Diethylaminomethyl-tert.butylperoxid, Dimethylaminomethyl-tert.butylperoxid, 1.1-Di(tert.amylperoxi)cyclohexan, tert.Amylperoxid, tert.Butylcumylperoxid, tert.Butylperoxid, und/oder 1-Hydroxybutyl-n-butylperoxid;
- Perester und Peroxycarbonate wie Butylperacetat, Cumylperacetat, Cumylperpropionat, Cyclohexylperacetat, Di-tert.butylperadipat, Di-tert.butylperazelat, Di-tert.butylperglutarat, Di-tert.butylperphthalat, Di-tert.butylpersebazat, 4-Nitrocumylperpropionat, 1-Phenylethylperbenzoat, Phenylethylnitroperbenzoat, tert.Butylbicyclo-(2,2,1)heptanpercarboxylat, tert.Butyl-4-carbomethoxyperbutyrat, tert.Butylcyclobutanpercarboxylat, tert.Butylcyclohexylperoxycarboxylat, tert.Butylcyclopentylpercarboxylat, tert.Butylcyclopropanpercarboxylat, tert.Butyldimethylpercinnamat, tert.Butyl-2-(2,2-diphenylvinyl)perbenzoat, tert. Butyl-4-methoxyperbenzoat, tert.Butylperbenzoat, tert.Butylcarboxicyclohexan, tert.Butylpernaphthoat, tert.Butylperoxiisopropylcarbonat, tert.Butylpertoluat, tert. Butyl-1-phenylcyclopropylpercarboxylat, tert.Butyl-2-propylperpenten-2-oat, tert.Butyl-1-methylcypropylpercarboxylat, tert.Butyl-4-nitrophenylperacetat, tert.Butylnitrophenylperoxycarbamat, tert.Butyl-N-succinimidopercarborylat, tert.Butylpercrotonat, tert.Butylpermaleinsäure, tert.Butylpermethacrylat, tert.Butylperoctoat, tert.Butylperoxyisopropylcarbonat, tert.Butylperisobutyrat, tert.Butylperacrylat und/oder tert.Butylperpropionat;
- Acyl peroxides such as benzoyl peroxide, 4-chlorobenzoyl peroxide, 3-methoxybenzoyl peroxide and / or methylbenzoyl peroxide;
- Alkyl peroxides such as allyl tert-butyl peroxide, 2,2-bis (tert-butyl peroxybutane), 1,1-bis (tert-butyl peroxy) -3,3,5-trimethylcyclohexane, n-butyl-4,4-bis (tert .butylperoxi) valerate, diisopropylaminomethyl-tert.amylperoxide, dimethylaminomethyl-tert.amylperoxide, diethylaminomethyl-tert.butylperoxide, dimethylaminomethyl-tert.butylperoxide, 1.1-di (tert.amylperoxi) cyclohexane, tert.amylperoxide, tert.perylperoxide, tert.perylutoxide , and / or 1-hydroxybutyl-n-butyl peroxide;
- Peresters and peroxycarbonates such as butyl peracetate, cumyl peracetate, cumylperpropionate, cyclohexylperacetate, di-tert.butylperadipate, di-tert.butylperazelate, di-tert.butylperglutarate, di-tert.butylperphthalate, di-tert.butylpersrocate, 1-nitylperebate, 4-nitylperebate, Phenylethylnitroperbenzoate, tert.butylbicyclo- (2,2,1) heptane percarboxylate, tert.butyl-4-carbomethoxyperbutyrate, tert.butylcyclobutane percarboxylate, tert.butylcyclohexylperoxycarboxylate, tert.butylcyclopentylpercarboxylate, tert.butylcyclopropanutamate (benzyl) 2,2-diphenylvinyl) perbenzoate, tert. Butyl 4-methoxyperbenzoate, tert.butylperbenzoate, tert.butylcarboxicyclohexane, tert.butylpersaphthoate, tert.butylperoxiisopropyl carbonate, tert.butylpertoluate, tert. Butyl-1-phenylcyclopropyl percarboxylate, tert.butyl-2-propylperpentene-2-oate, tert.butyl-1-methylcypropylpercarboxylate, tert.butyl-4-nitrophenylperacetate, tert.butylnitrophenylperoxycarbamate, tert.butyl-N-succinimidopercutylperotonate, tert.butylpermaleic acid, tert.butyl permethacrylate, tert.butylperoctoate, tert.butylperoxyisopropyl carbonate, tert.butylperisobutyrate, tert.butylperacrylate and / or tert.butylperpropionate;
Mit Vorteil werden ebenfalls Mischungen dieser thermisch zerfallenden Radikalbildner bei der Herstellung dieses bevorzugten modifizierten Propylenpolymeren A) eingesetzt.Mixtures of these thermally decomposing radical formers are also advantageous in the production of this preferred modified propylene polymer A) used.
Bei der Herstellung dieses bevorzugten modifizierten Propylenpolymeren A), die in den erfindungsgemäßen Polyolefinfasern, Polyolefingarnen und daraus hergestellten textilen Flächengebilden gegebenenfalls enthalten sind, können als bifunktionell ungesättigte Monomere alle aus Gasphase sorbierbaren bifunktionell ungesättigten monomeren Verbindungen eingesetzt werden, die mit Hilfe von freien Radikalen polymerisierbar sind. Bevorzugt angewandt werden folgende bifunktionell ungesättigten Monomere:
- Divinylverbindungen wie Divinylanilin, m-Divinylbenzen, p-Divinylbenzen, Divinylpentan und/oder Divinylpropan;
- Allylverbindungen wie Allylacrylat, Allylmethacrylat, Allylmethylmaleat und/oder Allylvinylether;
- Diene wie Butadien, Chloropren, Cyclohexadien, Cyclopentadien, 2,3-Dimethylbutadien,
Heptadien, Hexadien, Isopren, und/
oder 1,4-Pentadien ;
- Divinyl compounds such as divinylaniline, m-divinylbenzene, p-divinylbenzene, divinylpentane and / or divinylpropane;
- Allyl compounds such as allyl acrylate, allyl methacrylate, allyl methyl maleate and / or allyl vinyl ether;
- Dienes such as butadiene, chloroprene, cyclohexadiene, cyclopentadiene, 2,3-dimethylbutadiene, heptadiene, hexadiene, isoprene, and / or 1,4-pentadiene;
Mit Vorteil werden ebenfalls Mischungen dieser ungesättigten Monomeren bei der Herstellung dieses bevorzugten modifizierten Propylenpolymeren A) eingesetzt.Mixtures of these unsaturated monomers are also advantageous in the Production of this preferred modified propylene polymer A) used.
Die Sorption dieser leichtflüchtigen bifunktionell ungesättigten Monomeren erfolgt bei der Herstellung dieses bevorzugten modifizierten Propylenpolymeren A) erfindungsgemäß insbesondere in kontinuierlichen Durchflußmischern als kontinuierliche Gas-Feststoff-Absorber.These highly volatile bifunctionally unsaturated monomers are sorbed in the production of this preferred modified propylene polymer A) according to the invention, in particular in continuous flow mixers as continuous Gas-solid absorber.
Bei der Herstellung dieser bevorzugten Variante der modifizierten Propylenpolymeren A) erfolgt die Erwärmung und das Aufschmelzen der Polypropylenpartikel, in denen die Acylperoxide, Alkylperoxide, Hydroperoxide und/oder Perester als thermisch zerfallende Radikalbildner und die bifunktionell ungesättigten Monomere sorbiert sind, unter einer Atmosphäre von leichtflüchtigen bifunktionell ungesättigten Monomeren bevorzugt in kontinuierlich arbeitenden Knetern oder Extrudern, vorzugsweise in Doppelschneckenestrudern. In the production of this preferred variant of the modified propylene polymers A) the heating and melting of the polypropylene particles takes place in which the acyl peroxides, alkyl peroxides, hydroperoxides and / or peresters as thermally disintegrating radical formers and the bifunctionally unsaturated monomers are sorbed under an atmosphere of volatile bifunctionally unsaturated Monomers preferably in continuously operating kneaders or extruders, preferably in twin-screw oars.
Die als nichtmodifizierte Propylenpolymere B) in den in den Polyolefinfasern und Polyolefingarnen und daraus hergestellten textilen Flächengebilden gegebenenfalls enthaltenen üblichen Propylenpolymeren 1) bestehen bevorzugt aus Propylen-Homopolymeren mit einem Mw/Mn-Verhältnis von 2 bis 4,5 und/oder Copolymeren aus Propylen und α-Olefinen mit 2 bis 18 C-Atomen sowie aus Mischungen der genannten Polypropylene.The propylene polymers B) which are present as non-modified propylene polymers B) in the conventional propylene polymers 1) which may be present in the polyolefin fibers and polyolefin yarns and the textile fabrics made therefrom preferably consist of propylene homopolymers with an M w / M n ratio of 2 to 4.5 and / or copolymers Propylene and α-olefins with 2 to 18 carbon atoms and from mixtures of the polypropylenes mentioned.
Die als nichtmodifizierte Propylenpolymere B) in den Polyolefinfasern und Polyolefingarnen und daraus hergestellten textilen Flächengebilden gegebenenfalls als Komponente 2) enthaltenen Polyolefinmischung aus kristallinen Copolymeren und elastischen Copolymeren sind beispielsweise die in EP 400333 oder EP 472946 beschriebenen Polymermischungen.The as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 2) contained polyolefin mixture of crystalline copolymers and Elastic copolymers are, for example, those in EP 400333 or EP 472946 described polymer mixtures.
Die als nichtmodifizierte Propylenpolymere B) in den Polyolefinfasern und Polyolefingamen und daraus hergestellten textilen Flächengebilden gegebenenfalls als Komponente 3) enthaltenen amorphen Polypropylene sind insbesondere Stereoblock-Polypropylene, die beispielsweise unter Anwendung hochaktiver, Metalloxidfixierter Ziegler-Natta-Katalysatoren [Collette, J., Macromolecules 22 (1989), 3851-3858; DE 2830160] oder löslicher Ziegler-Natta-Katalysatoren [de Candia, F., Makromol. Chem. 189 (1988), 815-821], gegebenfalls unter nachfolgender Reaktivmodifizierung ( EP 636863) und/oder Degradation (EP 640 850), hergestellt werden.The as unmodified propylene polymers B) in the polyolefin fibers and polyolefin fibers and fabric made therefrom, optionally as Component 3) contained amorphous polypropylenes are in particular stereoblock polypropylenes, which, for example, using highly active, metal oxide fixed Ziegler-Natta catalysts [Collette, J., Macromolecules 22 (1989), 3851-3858; DE 2830160] or soluble Ziegler-Natta catalysts [de Candia, F., Macromol. Chem. 189 (1988), 815-821], optionally under the following Reactive modification (EP 636863) and / or degradation (EP 640 850) will.
Die als nichtmodifizierte Propylenpolymere B) in den Polyolefinfasern und Polyolefingarnen und daraus hergestellten textilen Flächengebilden gegebenenfalls als Komponente 4) enthaltenen nichtisotaktischen Propylen-Homopolymere sind insbesondere elastomere hochmolekulare Propylenhomopolymere, beispielsweise die in EP 475 307 oder EP 475 308 beschriebenen Produkte.The as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 4) contained non-isotactic propylene homopolymers are in particular elastomeric high molecular propylene homopolymers, for example those in Products described in EP 475 307 or EP 475 308.
Besonders bevorzugt werden als nichtmodifizierte Propylenpolymere B) in den Polyolefinfasern und Polyolefingarnen und daraus hergestellten textilen Flächengebilden Polyolefinmischungen, die gleichzeitig mehrere der nichtmodifizierten Polyolefin-Komponenten 1) bis 4) enthalten.Unmodified propylene polymers B) are particularly preferred in the polyolefin fibers and polyolefin yarns and textile fabrics made therefrom Polyolefin blends that combine several of the unmodified polyolefin components 1) to 4) included.
Die in den in den Polyolefinfasern und Polyolefingarnen hoher Festigkeit und Dehnung und daraus hergestellten textilen Flächengebilden gegebenenfalls enthaltenen Hilfsstoffe sind bevorzugt 0,01 bis 2,5 Masse% Stabilisatoren, 0,1 bis 1 Masse% Antistatika, 0,2 bis 3 Masse% Pigmente , 0,05 bis 1 Masse% Nukleierungsmittel und/oder 0,01 bis 1 Masse% Verarbeitungshilfsmittel. Diese Hilfsstoffe können bereits in den bei der Schmelzeverarbeitung eingesetzten Komponenten A) und/oder B) enthalten sein oder zusätzlich diesen Komponenten zugefügt werden.The in high tenacity and in polyolefin fibers and polyolefin yarns Elongation and textile fabrics produced therefrom, if necessary auxiliaries contained are preferably 0.01 to 2.5% by mass of stabilizers, 0.1 to 1 % Antistatic, 0.2 to 3% pigment, 0.05 to 1% nucleating agent and / or 0.01 to 1 mass% processing aid. These excipients can already be used in the components used in melt processing A) and / or B) can be contained or additionally added to these components.
Als Stabilisatoren werden bevorzugt Mischungen aus 0,01 bis 0,6 Masse% phenolischen Antioxidantien, 0,01 bis 0,6 Masse% 3-Arylbenzofuranonen, 0,01 bis 0,6 Masse% Verarbeitungsstabilisatoren auf Basis von Phosphiten , 0,01 bis 0,6 Masse% Hochtemperaturstabilisatoren auf Basis von Disulfiden und Thioäthern und/oder 0,01 bis 0,8 Masse% sterisch gehinderten Aminen (HALS) eingesetzt .Mixtures of 0.01 to 0.6% by mass are preferred as stabilizers. phenolic antioxidants, 0.01 to 0.6% by mass of 3-arylbenzofuranones, 0.01 to 0.6 mass% processing stabilizers based on phosphites, 0.01 to 0.6 % By mass High-temperature stabilizers based on disulfides and thioethers and / or 0.01 to 0.8 mass% of sterically hindered amines (HALS) are used.
Geeignete phenolische Antioxidantien sind 2-tert.Butyl-4,6-dimethylphenol, 2,6-Di-tert.butyl-4-methylphenol, 2,6-Di-tert.butyl-4-isoamylphenol, 2,6,-Di-tert.butyl-4-ethylphenol, 2-tert.Butyl-4,6-diisopropylphenol, 2,6-Dicyclopentyl-4-methylphenol, 2,6-Di-tert.-butyl-4-methoxymethylphenol, 2-tert.Butyl-4,6-dioctadecylphenol, 2,5-Di-tert.butylhydrochinon, 2,6-Di-tert.butyl-4,4-hexadecyloxyphenol, 2,2'-Methylen-bis(6-tert.butyl-4-methylphenol), 4,4'-Thio-bis-(6-tert.butyl-2-methylphenol), 3(3,5-Di-tert.butyl - 4-hydroxyphenyl)propionsäureoctadecylester, 1,3,5-Trimethyl-2,4,6-tris(3',5'di-tert.butyl-4-hydroxybenzyl)benzen und/oder Pentaerythritol-tetrakis[3-(3,5-di-tert.butyl-4-hydroxyphenyl)]propionat.Suitable phenolic antioxidants are 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butyl-4-isoamylphenol, 2,6, -di-tert-butyl-4-ethylphenol, 2-tert-butyl-4,6-diisopropylphenol, 2,6-dicyclopentyl-4-methylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, 2-tert-butyl-4,6-dioctadecylphenol, 2,5-di-tert-butylhydroquinone, 2,6-di-tert-butyl-4,4-hexadecyloxyphenol, 2,2'-methylene-bis (6-tert-butyl-4-methylphenol), 4,4'-thio-bis- (6-tert-butyl-2-methylphenol), 3 (3,5-di-tert-butyl - Octadecyl 4-hydroxyphenyl) propionate, 1,3,5-trimethyl-2,4,6-tris (3 ', 5'di-tert.butyl-4-hydroxybenzyl) and / or pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl)] propionate.
Als Benzofuranonderivat ist insbesondere 5,7-Di-tert.butyl-3-(3,4-di-methylphenyl)-3H-benzofuran-2-on geeignet. In particular, 5,7-di-tert-butyl-3- (3,4-dimethylphenyl) -3H-benzofuran-2-one is a benzofuranone derivative suitable.
Als HALS-Verbindungen sind Bis-2,2,6,6 tetramethyl-4-piperidylsebazat und/oder Poly-([1,1,3,3,-tetramethylbutyl)-imino]-1,3,5-triazin-2,4,diyl)[2,2,6,6-tetramethylpiperidyl)-amino]-hexamethylen-4-(2,2,6,6-tetra-methyl)piperidyl)-imino] besonders geeignet.Bis-2,2,6,6 tetramethyl-4-piperidyl sebazate and / or are the HALS compounds Poly - ([1,1,3,3, -tetramethylbutyl) -imino] -1,3,5-triazine-2,4, diyl) [2,2,6,6-tetramethylpiperidyl) -amino] -hexamethylene- 4- (2,2,6,6-tetra-methyl) piperidyl) imino] especially suitable.
Als Verarbeitungshilfsmittel können Calciumstearat, Magnesiumstearat und/oder Wachse eingesetzt werden.Calcium stearate, magnesium stearate and / or can be used as processing aids Waxes are used.
Die Polyolefinfasern und Polyolefingarne hoher Festigkeit und Dehnung, insbesondere nichtnachverstreckte Polyolefinfasern und Polyolefingarne mit Kapillartitern von 1 bis 10 dtex und Zugdehnungen über 130% bei Zugfestigkeiten von mindestens 15 cN/tex, und daraus hergestellte textile Flächengebilde werden nach einem Verfahren durch Verarbeitung von Polypropylenmischungen in bekannten Schmelzspinnanlagen aus Plastifizierextruder, Spinnpumpe, Schmelzeverteiler, Spinndüsen, Blasschacht und Nachfolgeeinrichtungen mit den Verfahrensschritten
- Aufschmelzen bei Massetemperaturen von 185 bis 310°C,
- Überführung der Schmelze mittels Schmelzepumpe zu den Spinndüsen,
- Extrusion in den Blasschacht,
- Abzug als Fäden und Weiterverarbeitung in Nachfolgeeinrichtungen hergestellt, wobei erfindungsgemäß
und andererseits aus
oder Polypropylenmischungen eingesetzt werden, die nur aus nichtmodifizierten Propylenpolymeren B) bestehen, wobei die Komponenten 3) und/oder 4) in
und wobei weiterhin den Polypropylenmischungen zur Herstellung der Polyolefinfasern und Polyolefingarne und daraus hergestellten testen Flächengebilden 0,01
- Melting at melt temperatures of 185 to 310 ° C,
- Transfer of the melt to the spinnerets by means of a melt pump,
- Extrusion into the blow duct,
- Deduction as threads and further processing in successor devices, whereby according to the invention
and on the other hand
or polypropylene mixtures are used which consist only of unmodified propylene polymers B), components 3) and / or 4) in proportions of 5 to 50% by mass and the remaining components in the polypropylene mixtures for the production of the polyolefin fibers and polyolefin yarns and textile fabrics made therefrom contained in proportions of 95 to 50% by mass
and furthermore 0.01 to 5% by mass of auxiliaries, based on the polyolefins, can be added to the polypropylene mixtures for the production of the polyolefin fibers and polyolefin yarns and test fabrics produced therefrom.
Als Plastifizierextruder sind für das Aufschmelzen der Mischungen insbesondere Einschneckenextruder oder Doppelschneckenestruder mit Schneckenlängen von 28 bis 30 D , bevorzugt mit angeflanschten statischen oder dynamischen Mischern, geeignet. Durch Temperaturführung und Drehzahl werden Schergeschwindigkeiten von 102s-1 bis 103s-1 eingestellt.Single-screw extruders or twin-screw extruders with screw lengths of 28 to 30 D, preferably with flanged static or dynamic mixers, are particularly suitable as plasticizing extruders for melting the mixtures. Temperature control and speed set shear rates from 10 2 s -1 to 10 3 s -1 .
Zur gleichmäßigen Schmelzedosierung der im Plastifizierestruder aufgeschmolzenen Mischung über den Schmelzeverteiler zum Kapillarwerkzeug werden bevorzugt Diphenyl-beheizte Schmelzepumpen für die auf 240-310°C erhitzten Schmelzen eingesetzt.For uniform melt dosing of those melted in the plasticizing extruder Mixing via the melt distributor to the capillary tool is preferred Diphenyl-heated melt pumps for the melts heated to 240-310 ° C used.
Für die Herstellung von Stapelfasern aus den Polypropylenmischungen werden die Fasern erfindungsgemäß mit Hilfe schnellaufender Galetten abgezogen und in Nachfolgeeinrichtungen aus Reckeinheit, Crimper, Fixiereinheit und Schneidmaschine durch Recken, Kräuselung und Schneiden weiterverarbeitet, wobei in Kurtspinnanlagen (Langsam-Spinnen) bei Düsenlochzahlen von 2000 bis 70000 Loch/Düse die Fadenabzugsgeschwindigkeiten auf 60 bis 250 m/min und in Langspinnanlagen (konventionelle Hochgeschwindigkeitsspinnanlagen) bei Düsenlochzahlen von 800 bis 3500 Loch/Düse die Fadenabzugsgeschwindigkeiten auf 350 bis 4000 m/min eingestellt werden.For the production of staple fibers from the polypropylene blends, the Fibers drawn off according to the invention with the aid of high-speed godets and in Successor devices from stretching unit, crimper, fixing unit and cutting machine processed by stretching, crimping and cutting, being in Short spinning lines (slow spinning) with numbers of nozzle holes from 2000 to 70000 Hole / nozzle the thread take-off speeds to 60 to 250 m / min and in Long spinning systems (conventional high-speed spinning systems) with numbers of nozzle holes the thread take-up speeds from 800 to 3500 holes / nozzle 350 to 4000 m / min can be set.
Bei Kurzspinnanlagen erfolgt die Kräuselung in einer Stauchkammer, bei Langspinnanlagen über Crimper, dabei ist die Kräuselung zweidimensional.With short spinning systems, the crimping takes place in a stuffer box, at Long spinning lines over crimper, the crimp is two-dimensional.
Bei Langspinnanlagen, die bevorzugt für feinere Titer geeignet sind, sind die Verarbeitung der Polypropylenmischungen zu Fasern und die Weiterverarbeitung zu Stapelfasern in der Reckstrasse als Nachfolgeeinrichtung getrennte Prozesse. Die extrudierten Fäden werden zunächst zu Faserkabeln zusammengeführt und in Kannen abgelegt, bevor die Weiterverarbeitung in der Reckstraße erfolgt.In long spinning systems, which are preferably suitable for finer titers, these are Processing of the polypropylene mixtures into fibers and further processing Staple fibers in Reckstrasse as a successor to separate processes. The extruded threads are first brought together into fiber cables and in Jugs placed before further processing takes place in Reckstrasse.
Für die Herstellung dreidimensional gekräuselter Garne vom
Für die Herstellung hochfester Filamentgarne vom
Für die Herstellung von Multifilamentgarnen werden die Fäden aus den Polypropylenmischungen erfindungsgemäß in Nachfolgeeinrichtungen aus Verkabler und Wickler weiterverarbeitet.For the production of multifilament yarns, the threads are made from Polypropylene mixtures according to the invention in successor devices Cables and winders processed further.
Filament-Garne vom
Textile Flächengebilde in Form von Vliesstoffen werden erfindungsgemäß nach Abzug der Fasern aus den Polypropylenmischungen im Blasschacht mittels Luft durch Weiterverarbeitung der Fäden zu Spinnvliesen in Nachfolgeeinrichtungen aus Siebtransportband, Kalander bzw. Vernadelungseinrichtung und Wickler durch flächiges ungeordnetes Ablegen der Fasern auf dem siebförmigen Transportband und Applikation von Thermobondier- oder Vernadelungsprozessen zur Erzielung der erforderlichen Festigkeit und Dimensionsstabilität hergestellt. Gegenüber Stapelfaservliesen besitzen diese Spinnvliese ein bedeutend günstigeres längs/quer - Festigkeitsverhältnis.Textile fabrics in the form of nonwovens are according to the invention Extraction of the fibers from the polypropylene mixtures in the blow duct using air by processing the threads into spunbonded nonwovens in successor devices Screen conveyor belt, calender or needling device and winder Flat, disorderly laying down of the fibers on the sieve-shaped conveyor belt and application of thermal bonding or needling processes to achieve the required strength and dimensional stability. Opposite staple fiber fleeces these spunbonded fabrics have a significantly cheaper lengthways / crossways Strength ratio.
Eine spezielle Variante der Vliesherstellung bildet erfindungsgemäß die Applizierung eines hocherhitzten Luftstroms um die Kapillardüsenöffnungen bei der Extrusion der Fasern aus den Polypropylenmischungen aus dem Kapillarwerkzeug in den Blasschacht. Der Luftstrom verstreckt den geschmolzenen Faden aus der Polyolefinmischung unter gleichzeitiger Zerteilung in viele Einzelfäserchen mit Faserdurchmessern von 0,5 bis 12 µm. Die Weiterverarbeitung der auf dem Siebtransportband abgelegten Fasern erfolgt analog der Spinnvliesherstellung. Von besonderer Bedeutung bei dieser Schmelzblasvariante der Vliesherstellung aus den Polyolefin-Mischungen ist das Temperatur- und Schergeschwindigkeitsprofil der Schmelzeverarbeitungseinrichtung, das so eingestellt werden muß, daß die Schmelze einer degradativen Viscositätserniedrigung auf einen Schmelzindex über 150g/10 min bei 230°C/2, 16 kp unterzogen wird.According to the invention, application forms a special variant of nonwoven production a highly heated air flow around the capillary nozzle openings during the extrusion of the Fibers from the polypropylene mixtures from the capillary tool in the Blow duct. The air flow stretches the melted thread out of the Polyolefin mixture with simultaneous division into many individual vials Fiber diameters from 0.5 to 12 µm. The further processing of the on the The screen conveyor belt of the deposited fibers is analogous to the spunbond production. From of particular importance in this meltblowing variant of nonwoven production from the Polyolefin blends is the temperature and shear rate profile of the Melt processing facility, which must be set so that the Melt a degradative reduction in viscosity to a melt index 150g / 10 min at 230 ° C / 2, 16 kp.
Für die Herstellung von nichtnachverstreckten Polyolefinfasern und Polyolefingarnen
wird das erfindungsgemäße Verfahren beispielhaft durch ein Verfahrensschema
entsprechend Zeichnung 1 erläutert. Die Bezugszeichen haben dabei folgende
Bedeutung :
Als Extruder (1) zum Aufschmelzen der Polyolefinmischungen werden bevorzugt Einschneckenestruder mit hoher Homogenisierwirkung mit Schneckenlängen von 28 bis 36 D , bevorzugt mit angeflanschten statischen oder dynamischen Mischern, eingesetzt.Preferred extruders (1) for melting the polyolefin mixtures are Single screw extruder with high homogenization effect with screw lengths of 28 up to 36 D, preferably with flanged static or dynamic mixers, used.
Bevorzugte Dimensionierungen der Spinndüsen (3) sind Spinndüsen mit Innendurchmessern von 0,35 bis 1,5 mm.Preferred dimensions of the spinnerets (3) are spinnerets with inner diameters from 0.35 to 1.5 mm.
In der Abzugseinrichtung (5) kann der Abzug direkt über den Wickler (6) oder unter Zwischenschaltung schnellaufender Galetten erfolgen. Bevorzugte Abzugsgeschwindigkeiten für Kapillartiter von 2,5 bis 5 dtex sind 2500 bis 3500 m/min.In the take-off device (5) the take-off can be done directly via the winder (6) or under Intermediate switching of high-speed godets. Preferred take-off speeds for capillary titers from 2.5 to 5 dtex are 2500 to 3500 m / min.
Bevorzugte Anwendungsgebiete der erfindungsgemäßen Polyolefinfasern, Polyolefingarne und daraus hergestellten textilen Flächengebilde sind :
- mehrschichtige Textilien, bevorzugt in Kombination mit Naturfasern, mit hohem Tragekomfort und Wärmerückhaltevermögen, insbesondere für Trikotagen, Sport- und Freizeitbekleidung,
- Strickwaren mit hohem Wärmerückhaltevermögen,
- hochfeste technische Gewebe hoher Scheuerfestigkeit und Dimensionsstabilität im Naßzustand, bevorzugt in Form von Tauwerken, Gurten und Filtergeweben,
- Heimtextilien wie Teppichböden hoher Pflegeleichtigkeit und geringer elektrostatischer Aufladbarkeit sowie Möbelbezugsstoffe, insbesondere für Gartenmöbel,
- Viesstoffe im Medizin- und Hygienebereich wie OP-Kittel und Windelhüllen,
- Geotestilvliese für Straßen- und Eisenbahnbau und zur Baustellenbefestigung,
- Vliesbänder zur Beseitigung von Ölhavarien,
- elastische Hygieneartikel.
- multi-layer textiles, preferably in combination with natural fibers, with high wearing comfort and heat retention, especially for jersey days, sports and leisure clothing,
- Knitwear with high heat retention,
- high-strength technical fabrics with high abrasion resistance and dimensional stability when wet, preferably in the form of ropes, belts and filter fabrics,
- Home textiles such as carpets with easy care and low electrostatic chargeability as well as upholstery fabrics, especially for garden furniture,
- Nonwovens in the medical and hygiene sector such as surgical gowns and diaper sleeves,
- Geotestil fleece for road and railway construction and for construction site fastening,
- Fleece tapes for removing oil spills,
- elastic hygiene articles.
Die Erfindung wird durch nachfolgende Beispiele erläutert :The invention is illustrated by the following examples:
In einer Spinnanlage nach Zeichnung 1 wird eine Polyolefinmischung, die aus 99 Masse% eines nichtmodifizierten Polypropylen-Homopolymers (Schmelzindex 18,2 g/10 min bei 230°C/2,16 kg), 1 Masse% eines modifizierten Polypropylens (Schmelzindex 5,5 g/10 min bei 230°C/2,16 kg, Quotient aus der Grenzviscosität (in Decalin bei 135°C) des modifizierten Polypropylens und der Grenzviscosität des nichtmodifizierten Polypropylens mit weitgehend gleichem Molmassen-Gewichtsmittel 0,74), 0,25 Masse% 2-tert.Butyl-4,6-diisopropylphenol, 0,2 Masse% Bis - 2,2,6,6 - tetramethyl-4-piperidylsebazat und 0,2 Masse% Calciumstearat (Hilfsstoffe jeweils bezogen auf die Summe der Propylenpolymeren) bei einer Massetemperatur von 275°C im Extruder aufgeschmolzen. Die Schmelze wird mit der Spinnpumpe zu den Spinndüsen überführt und bei einer Temperatur der Spinndüsen von 292°C durch den Blasschacht, der mit komprimierter Luft einer Temperatur von 20°C gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min durch schnellaufende Galetten abgezogen und aufgewickelt. In a spinning system according to drawing 1, a polyolefin mixture, which consists of 99 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (melt index 5.5 g / 10 min at 230 ° C / 2.16 kg, quotient of the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified Polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2% by mass of calcium stearate (auxiliaries in each case to the sum of the propylene polymers) at a melt temperature of 275 ° C in Extruder melted. The melt becomes the with the spinning pump Spinnerets transferred and at a temperature of the spinnerets of 292 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
Das resultierende nichtverstreckte Polypropylengarn besitzt einen Gesamttiter von 252 dTex, eine Zugfestigkeit von 19,5 cN/tex und eine Zugdehnung von 202 %.The resulting undrawn polypropylene yarn has a total titer of 252 dTex, a tensile strength of 19.5 cN / tex and an elongation of 202%.
In einer Spinnanlage nach Zeichnung 1 wird eine Polyolefinmischung, die aus 89 Masse% eines nichtmodifizierten Polypropylen-Homopolymers (Schmelzindex 18,2 g/10 min bei 230°C/2,16 kg), 10 Masse% eines nichtmodifizierten heterophasischen statistischen Propylen-Ethylen-Blockcopolymers (Ethylengehalt 33 Mol%, Schmelzindex 8 g/10 min bei 230°C/2,16 kg), 1 Masse% eines modifizierten Polypropylens (Schmelzindices 5,5 g/10 min bei 230°C/2, 16 kg, Quotient aus der Grenzviscosität (in Decalin bei 135°C) des modifizierten Polypropylens und der Grenzviscosität des nichtmodifizierten Polypropylens mit weitgehend gleichem Molmassen-Gewichtsmittel 0,74), 0,25 Masse% 2-tert.Butyl-4,6-diisopropylphenol, 0,25 Masse% Bis - 2,2,6,6 - tetramethyl-4-piperidylsebazat und 0,1 Masse% Magnesiumstearat (Hilfsstoffe jeweils bezogen auf die Summe der Propylenpolymeren) bei einer Massetemperatur von 275°C im Extruder aufgeschmolzen. Die Schmelze wird mit der Spinnpumpe zu den Spinndüsen überführt und bei einer Temperatur der Spinndüsen von 275°C durch den Blasschacht, der mit komprimierter Luft einer Temperatur von 20°C gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min durch schnellaufende Galetten abgezogen und aufgewickelt.In a spinning system according to drawing 1, a polyolefin mixture, which consists of 89 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of an unmodified heterophasic statistical propylene-ethylene block copolymer (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (Melting indices 5.5 g / 10 min at 230 ° C / 2, 16 kg, quotient from the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.25 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.1 mass% magnesium stearate (auxiliary substances in each case based on the sum of the propylene polymers) at a melt temperature melted at 275 ° C in the extruder. The melt is with the Spinning pump transferred to the spinnerets and at a temperature of the spinnerets of 275 ° C through the blow shaft, which with compressed air has a temperature of 20 ° C is cooled, with a take-off speed of 3000 m / min high-speed godets removed and wound up.
Das resultierende nichtverstreckte Polypropylengarn besitzt einen Gesamttiter von 253 dTex, eine Zugfestigkeit von 18,5 cN/tex und eine Zugdehnung von 195 %.The resulting undrawn polypropylene yarn has a total titer of 253 dTex, a tensile strength of 18.5 cN / tex and an elongation of 195%.
In einer Spinnanlage nach Zeichnung 1 wird ein Polypropylencompound, das aus 100 Masse% eines nichtmodifizierten Polypropylen-Homopolymers (Schmelzindex 18,2 g/10 min bei 230°C/2,16 kg), 0,2 Masse% Pentaerythritol-tetrakis[3-(3,5-di-tert.butyl-4-hydroxyphenyl)]propionat, 0,2 Masse% Bis - 2,2,6,6 tetramethyl-4-piperidylsebazat und 0,2 Masse% Magnesiumstearat (Hilfssstoffe jeweils bezogen auf das Polypropylen-Homopolymer) bei einer Massetemperatur von 280°C im Extruder aufgeschmolzen. Die Schmelze wird mit der Spinnpumpe zu den Spinndüsen überführt und bei einer Temperatur der Spinndüsen von 290°C durch den Blasschacht, der mit komprimierter Luft einer Temperatur von 20°C gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min durch schnellaufende Galetten abgezogen und aufgewickelt.In a spinning system according to drawing 1, a polypropylene compound that is made 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 0.2% by mass of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl)] propionate, 0.2 mass% bis - 2,2,6,6 tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliary substances in each case based on the Polypropylene homopolymer) at a melt temperature of 280 ° C in the extruder melted. The melt becomes the spinnerets with the spinning pump transferred and at a temperature of the spinnerets of 290 ° C by the Blow duct, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min due to high-speed godets stripped and wound up.
Das resultierende nichtverstreckte Polypropylengarn besitzt einen Gesamttiter von 254 dtex, eine Zugfestigkeit von 23,7 cN/tex und eine Zugdehnung von 124%.The resulting undrawn polypropylene yarn has a total titer of 254 dtex, a tensile strength of 23.7 cN / tex and an elongation of 124%.
Herstellung des modifizierten Propylenpolymeren :
In einen kontinuierlichen beheizbaren Durchlaufmischer wird ein pulverförmiges
Polypropylen-Homopolymer (Schmelzindex von 0,2 g/10 min bei 230°C/2,16 kp,
mittlerer Partikeldurchmesser 0,55 mm) kontinuierlich dosiert. Weiterhin werden in
den Durchlaufmischer 0,1 Gew.% Calciumstearat und 0,09 Gew.% Bis(tert.butylperoxy)-2,5-dimethylhexan,
jeweils bezogen auf das Polypropylen-Homopolymer,
kontinuierlich dosiert. Unter homogener Durchmischung bei 45°C wird das mit
thermisch zerfallendem Radikalbildner und Hilfsstoff beladene Polypropylen-Homopolymer
bei einer Verweilzeit von 6 min bei 45°C durch ein Butadien-Stickstoff-Gemisch
mit 1,1 Gew.% Butadien, bezogen auf das Polypropylen-Homopolymer,
sorptiv beladen. Nach Überführung in einen Doppelschneckenestruder wird das
pulverförmige Reaktionsgemisch in Kontakt mit dem eindosierten Butadien-Stickstoff-Gemisch
unter Zusatz von 0,1 Masse% Irganox 1010 und 0,1 Masse%
Irgaphos 168 bei einer Massetemperatur von 235°C aufgeschmolzen, nach einer
Grobentgasung unter Eindosierung von Wasser als Schleppmittel einer
Feinentgasung unterzogen, ausgetragen und granuliert. Production of the modified propylene polymer:
A powdery polypropylene homopolymer (melt index of 0.2 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.55 mm) is continuously metered into a continuous heatable continuous mixer. In addition, 0.1% by weight of calcium stearate and 0.09% by weight of bis (tert-butylperoxy) -2,5-dimethylhexane, based in each case on the polypropylene homopolymer, are continuously metered into the continuous mixer. With homogeneous mixing at 45 ° C., the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary is held for 6 min at 45 ° C. by a butadiene-nitrogen mixture with 1.1% by weight of butadiene, based on the polypropylene Homopolymer, sorptively loaded. After being transferred to a twin-screw extruder, the pulverulent reaction mixture is melted in contact with the metered-in butadiene-nitrogen mixture with the addition of 0.1% by mass of Irganox 1010 and 0.1% by mass of Irgaphos 168 at a melt temperature of 235 ° C, after a rough degassing Dosing of water as an entrainer undergoes fine degassing, discharged and granulated.
Das resultierende modifizierte Polypropylen besitzt einen IR-spektroskopisch ermittelten Gehalt an gebundenem Butadien von 1,0 Gew.% und einen Schmelzindex von 0,85 g/10 min bei 230°C/2,16 kp.The resulting modified polypropylene has an IR spectroscopic determined bound butadiene content of 1.0% by weight and a Melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp.
Verarbeitung der Polyolefinmischung:
In einer Laborspinnanlage aus Plastifizierextruder, Schmelzepumpe, Kapillarwerkzeug,
Blasschacht, Abzugseinrichtung und Wickler wird eine Polypropylenmischung,
die aus 99 Masse% eines Polypropylen-Homopolymers (Schmelzindex
18,2 g/10 min bei 230°C/2,16 kg), 1 Masse% eines modifizierten Polypropylens
(Schmelzindex von 0,85 g/10 min bei 230°C/2,16 kp, Gehalt an gebundenem Butadien
1,0 Gew.%), 0,25 Masse% 2-tert.Butyl-4,6-diisopropylphenol, 0,2 Masse% Bis -
2,2,6,6 - tetramethyl-4-piperidylsebazat und 0,2 Masse% Calciumstearat (Hilfssstoffe
jeweils bezogen auf die Summe der Propylenpolymeren) bei einer Massetemperatur
von 272°C im Extruder aufgeschmolzen. Die Schmelze wird mit der Schmelzepumpe
zu den Spinndüsen überführt und bei einer Temperatur der Spinndüsen von 290°C
durch den Blasschacht, der mit komprimierter Luft einer Temperatur von 20°C
gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min durch schnellaufende
Galetten abgezogen und aufgewickelt.
Das resultierende Filament-Garn vom
In a laboratory spinning system consisting of a plasticizing extruder, melt pump, capillary tool, blow chute, take-off device and winder, a polypropylene mixture is made up of 99 mass% of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass % of a modified polypropylene (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, content of bound butadiene 1.0% by weight), 0.25% by mass of 2-tert-butyl-4,6 -diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2 mass% calcium stearate (auxiliaries based in each case on the sum of the propylene polymers) melted in the extruder at a melt temperature of 272 ° C. . The melt is transferred to the spinnerets with the melt pump and, at a temperature of the spinnerets of 290 ° C., is drawn off through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C., at a take-off speed of 3000 m / min by high-speed godets and wound up.
The resulting filament yarn from
In einer Laborspinnanlage nach Beispiel 1 wird ein Polypropylencompound, das aus 100 Masse% eines nichtmodifizierten Polypropylen-Homopolymers (Schmelzindex 18,2 g/10 min bei 230°C/2,16 kg), 0,2 Masse% Pentaerythritol-tetrakis[3-(3,5-di-tert.butyl-4-hydroxy-phenyl)]propionat, 0,2 Masse% Bis - 2,2,6,6- tetramethyl-4-piperidylsebazat und 0,2 Masse% Magnesiumstearat (Hilfsstoffe jeweils bezogen auf das Polypropylen-Homopolymer) bei einer Massetemperatur von 275°C im Plastifizierextruder aufgeschmolzen. Die Schmelze wird mit der Schmelzepumpe zu den Spinndüsen überführt und bei einer Temperatur der Spinndüsen von 290°C durch den Blasschacht, der mit komprimierter Luft einer Temperatur von 20°C gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min durch schnellaufende Galetten abgezogen und aufgewickelt.In a laboratory spinning system according to Example 1, a polypropylene compound that is 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C./2.16 kg), 0.2 mass% of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxy-phenyl)] propionate, 0.2 mass% bis - 2,2,6,6-tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliaries in each case based on the Polypropylene homopolymer) at a melt temperature of 275 ° C in the plasticizing extruder melted. The melt becomes the melt with the melt pump Spinnerets transferred and at a temperature of the spinnerets of 290 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
Das resultierende Filament-Garn vom
Beispiel 6Example 6
Herstellung des modifizierten Propylenpolymeren :
In einen kontinuierlichen beheizbaren Durchlaufmischer ein pulverförmiges statistisches
Polypropylen-Copolymer (Schmelzindex von 0,85 g/10 min bei 230°C/2,16
kp, mittlerer Partikeldurchmesser 0,85 mm) kontinuierlich dosiert. Weiterhin werden
in den Druchlaufmischer 0,05 Gew.% Hydrotalcit, 0,05 Gew.% Calciumstearat und
0,45 Gew.% tert.Butylperoxybenzoat, jeweils bezogen auf das PolypropylenCopolymer,
kontinuierlich dosiert. Unter homogener Durchmischung bei 70°C wird
das mit thermisch zerfallendem Radikalbildner und Hilfsstoff beladene Polypropylen-Homopolymer
bei einer Verweilzeit von 4 min bei 70°C durch das einströmende
Divinylbenzen-Stickstoff-Gemisch mit 0,35 Gew.% Divinylbenzen, bezogen auf das
Polypropylen-Homopolymer, sorptiv beladen. Nach Überführung in den Doppelschneckenestruder
wird das pulverförmige Reaktionsgemisch in Kontakt mit dem
eindosierten Divinylbenzen-Stickstoff-Gemisch unter Zusatz von 0,1 Masse% Irganox
1010 und 0,1 Masse% Irgaphos 168 bei einer Massetemperatur von 225°C
aufgeschmolzen, nach einer Grobentgasung unter Eindosierung von Wasser als
Schleppmittel einer Feinentgasung unterzogen, ausgetragen und granuliert.
Das resultierende modifizierte Polypropylen-Copolymer besitzt einen IR-spektroskopisch
ermittelten Gehalt an gebundenem Divinylbenzen von 0,32 Gew.%
und einen Schmelzindex von 1,35 g/10 min bei 230°C/2,16 kp. Production of the modified propylene polymer:
A powdery random polypropylene copolymer (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.85 mm) is continuously metered into a continuous heatable continuous mixer. Furthermore, 0.05% by weight of hydrotalcite, 0.05% by weight of calcium stearate and 0.45% by weight of tert-butyl peroxybenzoate, in each case based on the polypropylene copolymer, are metered continuously into the continuous mixer. With homogeneous mixing at 70 ° C., the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary material is at a residence time of 4 min at 70 ° C. by the inflowing divinylbenzene / nitrogen mixture with 0.35% by weight divinylbenzene, based on the polypropylene -Homopolymer, sorptively loaded. After transfer to the twin-screw extruder, the pulverulent reaction mixture is melted in contact with the metered-in divinylbenzene / nitrogen mixture with the addition of 0.1% by mass of Irganox 1010 and 0.1% by mass of Irgaphos 168 at a melt temperature of 225 ° C. after a rough degassing Dosing of water as an entrainer undergoes fine degassing, discharged and granulated.
The resulting modified polypropylene copolymer has a content of bound divinylbenzene, determined by IR spectroscopy, of 0.32% by weight and a melt index of 1.35 g / 10 min at 230 ° C./2.16 kp.
Verarbeitung der Polyolefinmischung :
In einer Hochgeschwindigkeits-Laborspinnanlage aus Plastifizierextruder, Schmelzepumpe,
Kapillarwerkzeug, Blasschacht, Abzugseinrichtung und Ablagekanne wird
eine Polypropylenmischung, die aus 89 Masse% eines Polypropylen-Homopolymers
(Schmelzindex 18,2 g/10 min bei 230°C/2,16 kg), 10 Masse% eines Reaktorblends
(Ethylengehalt 33 Mol%, Schmelzindex 8 g/10 min bei 230°C/2,16 kg), bestehend
aus einem kristallinen Propylen-Ethylen-Copolymeren und einem elastischen Ethylen-Propylen-Copolymeren,
1 Masse% eines modifizierten Polypropylens (Gehalt an
gebundenem Divinylbenzen von 0,32 Masse %, Schmelzindex von 1,35 g/10 min bei
230°C/2,16 kp), 0,25 Masse% 2-tert.Butyl-4,6-diisopropylphenol, 0,25 Masse% Bis-2,2,6,6
- tetramethyl-4-piperidylsebazat und 0,1 Masse% Magnesiumstearat
(Hilfssstoffe jeweils bezogen auf die Summe der Propylenpolymeren) bei einer
Massetemperatur von 280°C im Extruder aufgeschmolzen. Die Schmelze wird mit
der Schmelzepumpe zu den Spinndüsen überführt und bei einer Temperatur der
Spinndüsen von 285°C durch den Blasschacht, der mit komprimierter Luft einer
Temperatur von 20°C gekühlt wird, mit einer Abzugsgeschwindigkeit von 3000 m/min
durch schnellaufende Galetten abgezogen und in einer Kanne abgelegt.Processing of the polyolefin mixture:
In a high-speed laboratory spinning system consisting of a plasticizing extruder, a melt pump, a capillary tool, a blow chute, an extraction device and a storage can, a polypropylene mixture is made up of 89% by mass of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of a reactor blend (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), consisting of a crystalline propylene-ethylene copolymer and an elastic ethylene-propylene copolymer, 1 mass% of one modified polypropylene (content of bound divinylbenzene of 0.32 mass%, melt index of 1.35 g / 10 min at 230 ° C / 2.16 kp), 0.25 mass% of 2-tert-butyl-4,6-diisopropylphenol , 0.25% by mass of bis-2,2,6,6-tetramethyl-4-piperidyl sebazate and 0.1% by mass of magnesium stearate (auxiliaries in each case based on the sum of the propylene polymers) melted at a melt temperature of 280 ° C. in the extruder. The melt is transferred to the spinnerets with the melt pump and drawn off at a spinning nozzle temperature of 285 ° C through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C, at a take-off speed of 3000 m / min by high-speed godets and placed in a jug.
Zur diskontinuierlichen Herstellung von Stapelfasern wird der abgelegte Polypropylenfaden in einer Labornachverarbeitungsstrecke aus Reckeinheit, Crimper und Schneidmaschine einer Verstreckung um 850% und zweidimensionaler Kräuselung unterzogen und in Segmente geschnitten. Ein nach der Reckeinheit entnommenes nichtgekräuseltes Probenmuster (Fadendurchmesser 0,2 mm) besitzt eine Zugfestigkeit von 540 MPa und eine Dehnung von 46%.The discarded polypropylene thread is used for the discontinuous production of staple fibers in a laboratory post-processing line consisting of stretching unit, crimper and Cutting machine with 850% stretch and two-dimensional crimp subjected and cut into segments. One taken after the stretching unit a non-crimped sample (thread diameter 0.2 mm) has a tensile strength of 540 MPa and an elongation of 46%.
Die Fasersegmente werden auf einem Laborkalander durch Thermobondierung zu einem Vliesstoff weiterverarbeitet, der ein Flächengewicht von 60 g/m2 und ein längs/quer-Festigkeitsverhältnis von 2,6:1 besitzt.The fiber segments are further processed on a laboratory calender by thermal bonding to form a nonwoven fabric that has a basis weight of 60 g / m 2 and a longitudinal / transverse strength ratio of 2.6: 1.
Claims (5)
entweder aus Polypropylenmischungen bestehen,
die einerseits aus
either consist of polypropylene mixtures,
the one out
entweder Polypropylenmischungen eingesetzt werden, die einerseits aus
und andererseits aus
either polypropylene blends are used which are made up of one hand
and on the other hand
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19720135 | 1997-05-14 | ||
DE1997120135 DE19720135B4 (en) | 1997-05-14 | 1997-05-14 | Non-postdrawn polyolefin fibers and high tenacity and elongated polyolefin yarns and fabrics made therefrom |
DE19722579 | 1997-05-30 | ||
DE1997122579 DE19722579B4 (en) | 1997-05-30 | 1997-05-30 | Fibers and yarns of high tenacity and elongation, process for their production and use |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0878567A2 true EP0878567A2 (en) | 1998-11-18 |
EP0878567A3 EP0878567A3 (en) | 2001-01-17 |
EP0878567B1 EP0878567B1 (en) | 2004-09-29 |
Family
ID=26036531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98107669A Expired - Lifetime EP0878567B1 (en) | 1997-05-14 | 1998-04-28 | Polyolefin fibres and polyolefin yarns and textile materials thereof |
Country Status (4)
Country | Link |
---|---|
US (2) | US6218011B1 (en) |
EP (1) | EP0878567B1 (en) |
CZ (1) | CZ298667B6 (en) |
DE (1) | DE59812014D1 (en) |
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WO1996006966A1 (en) * | 1994-08-30 | 1996-03-07 | Kimberly-Clark Worldwide, Inc. | Nonwoven fabric from blends of isotactic and atactic polyolefins |
WO1996026308A1 (en) * | 1995-02-20 | 1996-08-29 | Borealis A/S | Dyeable polyolefin fiber |
DE19506083A1 (en) * | 1995-02-22 | 1995-07-13 | Thueringisches Inst Textil | Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres |
EP0743380A2 (en) * | 1995-05-15 | 1996-11-20 | Montell North America Inc. | High tenacity propylene polymer fibre and process for making it |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1999011678A2 (en) * | 1997-09-01 | 1999-03-11 | Targor Gmbh | Injection moulding articles made of metallocene and polypropylene |
WO1999011678A3 (en) * | 1997-09-01 | 1999-05-27 | Targor Gmbh | Injection moulding articles made of metallocene and polypropylene |
EP1213375A1 (en) * | 2000-12-07 | 2002-06-12 | Borealis GmbH | Non-postdrawn polyolefin with high tenacity |
EP1213376A1 (en) * | 2000-12-07 | 2002-06-12 | Borealis GmbH | Non-postdrawn polyolefin fibers with high strength |
WO2002046502A1 (en) * | 2000-12-07 | 2002-06-13 | Borealis Gmbh | Non-postdrawn polyolefin fibers with high tenacity |
EP1260618A1 (en) * | 2001-05-22 | 2002-11-27 | Borealis Technology Oy | Propylene polymer fibres with bonding properties |
WO2002095095A2 (en) * | 2001-05-22 | 2002-11-28 | Borealis Technology Oy | A nonwoven formed by bonding of propylene polymer fibres with bonding properties |
WO2002095095A3 (en) * | 2001-05-22 | 2003-02-13 | Borealis Tech Oy | A nonwoven formed by bonding of propylene polymer fibres with bonding properties |
WO2006063905A1 (en) * | 2004-12-13 | 2006-06-22 | Basell Poliolefine Italia S.R.L. | Polyolefin composition, fibres and nonwoven fabrics |
Also Published As
Publication number | Publication date |
---|---|
US20020002241A1 (en) | 2002-01-03 |
US6218011B1 (en) | 2001-04-17 |
CZ298667B6 (en) | 2007-12-12 |
US6537473B2 (en) | 2003-03-25 |
DE59812014D1 (en) | 2004-11-04 |
CZ143798A3 (en) | 1999-05-12 |
EP0878567A3 (en) | 2001-01-17 |
EP0878567B1 (en) | 2004-09-29 |
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