EP1244829B1 - Verfahren zur herstellung von hydrolysestabilisierten monofilamenten aus polyester und deren verwendung - Google Patents
Verfahren zur herstellung von hydrolysestabilisierten monofilamenten aus polyester und deren verwendung Download PDFInfo
- Publication number
- EP1244829B1 EP1244829B1 EP00972531A EP00972531A EP1244829B1 EP 1244829 B1 EP1244829 B1 EP 1244829B1 EP 00972531 A EP00972531 A EP 00972531A EP 00972531 A EP00972531 A EP 00972531A EP 1244829 B1 EP1244829 B1 EP 1244829B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- hydrolysis
- monofilaments
- polyester
- production
- 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.)
- Expired - Lifetime
Links
- 229920000728 polyester Polymers 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007062 hydrolysis Effects 0.000 title abstract description 16
- 238000006460 hydrolysis reaction Methods 0.000 title abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims description 13
- -1 alkyl phosphonium salt Chemical class 0.000 claims description 10
- 235000013305 food Nutrition 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- BJQWBACJIAKDTJ-UHFFFAOYSA-N tetrabutylphosphanium Chemical compound CCCC[P+](CCCC)(CCCC)CCCC BJQWBACJIAKDTJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002074 melt spinning Methods 0.000 claims 1
- 230000000996 additive effect Effects 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GFZMLBWMGBLIDI-UHFFFAOYSA-M tetrabutylphosphanium;acetate Chemical compound CC([O-])=O.CCCC[P+](CCCC)(CCCC)CCCC GFZMLBWMGBLIDI-UHFFFAOYSA-M 0.000 description 1
- NYHGQGKRPTYCBV-UHFFFAOYSA-K tetrabutylphosphanium;phosphate Chemical compound [O-]P([O-])([O-])=O.CCCC[P+](CCCC)(CCCC)CCCC.CCCC[P+](CCCC)(CCCC)CCCC.CCCC[P+](CCCC)(CCCC)CCCC NYHGQGKRPTYCBV-UHFFFAOYSA-K 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- FWYKRJUVEOBFGH-UHFFFAOYSA-M triphenyl(prop-2-enyl)phosphanium;bromide Chemical compound [Br-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CC=C)C1=CC=CC=C1 FWYKRJUVEOBFGH-UHFFFAOYSA-M 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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- 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
-
- 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
Definitions
- the invention relates to a method for producing hydrolysis-stabilized monofilaments from one post-condensed polyester granules with a Viscosity index (VI) of at least 90 ml / g and their Use in fabrics for food, pharmaceutical and Paper industry.
- VI Viscosity index
- Polyester means thermoplastics, which contain at least 95% by weight of polyethylene terephthalate, Polybutylene terephthalate and polynaphthalate units exhibit.
- DE-A-19 526 405 describes a method for reduction the carboxyl end groups of polyester are known.
- alkylene carbonate Allyl triphenylphosphonium bromide as a catalyst preferably in the feed line to the post-condensation reactor worked.
- the known method is used for Thermal stabilization and color stabilization of a polysters.
- the well-known post-condensed polyester granulate is intended for the production of high-strength yarn for tire cord be suitable, which are usually made of multifilaments consist. Such yarns must be used during the Vulcanizing be thermostable and the color as possible change little, but are hardly damp heat exposed.
- First the post-condensed polyester granulate is the starting material for the production of high-strength Yarns provided. However, no information is given about the manufacture of the yarns and their tensile strength. The manufacture of monofilaments is not disclosed.
- the known method has the disadvantage that post-condensed polyester granulate for the production of Yarn must be melted again. Thereby takes place in Presence of polycarbonate with catalyst thermal degradation with the formation of gas bubbles, which in a thread, especially in a monofilament to one Disturbance of the polyester structure and thus inhomogeneity can lead.
- Halides are also used as catalysts used, which have the disadvantage that they are also in smallest amounts cause discoloration and Disposal by burning form toxic acid gases (HCl, HBr).
- the object of the invention is the production of hydrolysis-resistant, atoxic, homogeneous monofilaments, that have no inclusions or thick spots Polyesters for use in food, pharmaceutical and paper industry.
- Another job is to make a monofilament Manufacture polyester, which is above the state of the art Technology has improved resistance to hydrolysis.
- Yet another object is the use of the hydrolysis-stabilized one Polyester monofilaments for manufacture of fabrics for conveyor belts and filter fabrics for the Food, pharmaceutical and paper industries.
- the object is achieved in that a polyester granulate with a viscosity index (VI) a liquid additive mixture of at least 90 ml / g Ethylene carbonate and an alkylphosphonium salt immediately is continuously metered in before the extruder.
- the continuous dosing to the granulate guaranteed good homogenization with a surprisingly short one Reaction time.
- ethylene carbonate (1,3-dioxalan-2-one). It is manufactured from ethylene oxide and liquid carbon dioxide. According to the "Department of Health, Education and Welfare's registry of toxic effects of chemical substances", ethylene carbonate is considered harmless. In addition, only CO 2 gas is released during the reaction in the polyester. The remaining glycol residue is attached to the polyester end group.
- Alkyl catalysts are phosphonium salts suitable, such as tetrabutylphosphonium acetate (TBPA). she serve as catalysts to block the Carboxyl end groups of the polyester.
- TBPA tetrabutylphosphonium acetate
- the liquid additive to be used consists of 0.15% by weight up to 0.5% by weight of ethylene carbonate and 0.005% by weight to 0.025 % By weight, in particular 0.010% by weight to 0.020% by weight, preferably 0.11% by weight to 0.15% by weight of an alkylphosphonium salt, based on the polyester granulate. At less than 0.005% by weight of the catalyst the residual tensile strength is too low; at more than 0.025 % By weight the residual tear strength is also too low and that Monofilament cannot be used for technical purposes.
- Polyester monofilament demonstrates a residual tear strength a treatment of 6 days in water in one Temperature of 125 ° C of more than 55% and one Viscosity index of at least 75 ml / g on what a substantial improvement in the hydrolysis resistance of Monofilaments compared to the prior art means.
- the monofilaments were between 3 and 8 days in one Autoclaves treated in water at 125 ° C. After Hydrolysis, the temperature was lowered to below 100 ° C, the threads are removed and the residual tensile strength is determined.
- hydrolysis-resistant monofilaments Polyester is particularly used to make fabrics for use in the food, pharmaceutical and paper industries suitable.
- hydrolysis-resistant polyester is limited not only focus on the production of monofilaments, but can generally be done for technical yarns.
- A serves as the starting polymer for all examples post-condensed polyethylene terephthalate in granular form with a granular viscosity VI of 98 ml / g.
- This Granules are melted in an extruder and through Spinnerets for monofilaments with a diameter of 0.50 mm extruded. The monofilaments were on conventionally cooled in water, stretched, relaxed, provided with a preparation and wound.
- EC ethylene carbonate puriss.
- EC ethylene carbonate puriss.
- TBPA tetra-n-butylphosphonium acetate
- PET polyethylene terephthalate
- curve 1 shows the course of the residual tear force [%] of a known polyester monofilament without addition in Course of time
- Curve 2 shows the course of the invention Monofilament.
- the residual tensile strength is a function of the amount of catalyst after treatment in water at 125 ° C and 1.5 bar recorded over 6 days.
- the resistance to hydrolysis expressed in percent residual tensile strength in Depends on the catalyst concentration at about 0.14 g / kg a maximum and thus corresponds to the optimal amount.
- the monofilaments of polyester according to the invention have in a surprising way after treatment in water 125 ° C after 6 days a significantly improved tear strength compared to known non-hydrolysis stabilized Monofilaments.
Landscapes
- 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)
- Polyesters Or Polycarbonates (AREA)
- Woven Fabrics (AREA)
- Paper (AREA)
Description
Claims (4)
- Verfahren zur Herstellung von hydrolysestabilisierten Monofilamente aus einem nachkondensierten Polyestergranulat mit einem Viskositätsindex (VI) von wenigstens 90 ml/g und mit einem Durchmesser 0.12 - 0.80 mm durch Schmelzspinnen, dadurch gekennzeichnet, daß dem nachkondensierten Polyestergranulat ein flüssiges Additivgemisch aus 0.15 Gew.-% bis 0.5 Gew.-% Ethylencarbonat und 0.005 Gew.-% (50 ppm) bis 0.025 Gew.-% (250 ppm) eines Alkylphosphoniumsalzes, bezogen auf das Polyestergranulat als Katalysator unmittelbar vor dem Extruder dem Polyestergranulat kontinuierlich zudosiert wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß als Alkylphosphoniumsalz Tetra-n-butylphosphoniumactetat (TBPA) verwendet wird.
- Monofilament, hergestellt nach dem Verfahren gemäß den Ansprüchen 1 und 2, gekennzeichnet durch eine Restreisskraft nach einer Behandlung 6 Tagen in Wasser bei einer Temperatur von 125°C von mehr als 55 % und einem Viskositätsindex von wenigsten 75 ml/g.
- Verwendung der Monofilamente nach Anspruch 3 zur Herstellung von technischen Geweben zum Einsatz in der Lebensmittel-, Pharma- und Papierindustrie.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH222899 | 1999-12-03 | ||
| CH222899 | 1999-12-03 | ||
| PCT/CH2000/000606 WO2001040554A1 (de) | 1999-12-03 | 2000-11-14 | Verfahren zur herstellung von hydrolysestabilisierten monofilamenten aus polyester und deren verwendung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1244829A1 EP1244829A1 (de) | 2002-10-02 |
| EP1244829B1 true EP1244829B1 (de) | 2004-02-11 |
Family
ID=4228869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00972531A Expired - Lifetime EP1244829B1 (de) | 1999-12-03 | 2000-11-14 | Verfahren zur herstellung von hydrolysestabilisierten monofilamenten aus polyester und deren verwendung |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6528161B1 (de) |
| EP (1) | EP1244829B1 (de) |
| JP (1) | JP3860472B2 (de) |
| AT (1) | ATE259435T1 (de) |
| DE (1) | DE50005286D1 (de) |
| ES (1) | ES2215077T3 (de) |
| PT (1) | PT1244829E (de) |
| WO (1) | WO2001040554A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10201834B4 (de) * | 2002-01-18 | 2006-12-07 | Zimmer Ag | Herstellung dimensionsstabiler Polyesterfäden |
| US20070149756A1 (en) * | 2005-12-26 | 2007-06-28 | Futura Polyesters Limited | Compositions and methods of manufacturing polytrimethylene naphthalate |
| TR201106066A2 (tr) | 2011-06-21 | 2012-01-23 | Ti̇cem İleri̇ Yapi Teknoloji̇leri̇ Sanayi̇ Ti̇caret Danişmanlik Li̇mi̇ted Şi̇rketi̇ | İnce ve üretim hızı, dayanımı ve durabilitesi yüksek çimento esaslı panel elde etme sistemi ve yöntemi. |
| CN102952390B (zh) | 2011-08-29 | 2017-08-15 | 科思创聚合物(中国)有限公司 | 制备具有改善的水解稳定性的塑料材料的方法、塑料材料及其应用 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1929149A1 (de) * | 1969-06-09 | 1970-12-23 | Hoechst Ag | Verfahren zur Endgruppenmodifizierung von Polyestern |
| JPS4841713B1 (de) | 1969-08-05 | 1973-12-07 | ||
| US4171422A (en) * | 1978-09-11 | 1979-10-16 | Allied Chemical Corporation | Production of thermally stabilized polyester |
| US4321304A (en) * | 1980-10-02 | 1982-03-23 | Ppg Industries, Inc. | Beta-diketone-epoxy resin reaction products blended with monomeric or polymeric phosphonium salts useful for providing corrosion resistance |
| DE19526405B4 (de) | 1995-07-19 | 2006-03-30 | Zimmer Ag | Verfahren zur Reduzierung der Carboxyl-Endgruppen linearer Polyester |
-
2000
- 2000-11-14 PT PT00972531T patent/PT1244829E/pt unknown
- 2000-11-14 US US10/088,617 patent/US6528161B1/en not_active Expired - Fee Related
- 2000-11-14 JP JP2001542617A patent/JP3860472B2/ja not_active Expired - Fee Related
- 2000-11-14 WO PCT/CH2000/000606 patent/WO2001040554A1/de not_active Ceased
- 2000-11-14 ES ES00972531T patent/ES2215077T3/es not_active Expired - Lifetime
- 2000-11-14 DE DE50005286T patent/DE50005286D1/de not_active Expired - Fee Related
- 2000-11-14 AT AT00972531T patent/ATE259435T1/de not_active IP Right Cessation
- 2000-11-14 EP EP00972531A patent/EP1244829B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003515680A (ja) | 2003-05-07 |
| EP1244829A1 (de) | 2002-10-02 |
| ES2215077T3 (es) | 2004-10-01 |
| WO2001040554A1 (de) | 2001-06-07 |
| JP3860472B2 (ja) | 2006-12-20 |
| US6528161B1 (en) | 2003-03-04 |
| PT1244829E (pt) | 2004-05-31 |
| ATE259435T1 (de) | 2004-02-15 |
| DE50005286D1 (de) | 2004-03-18 |
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