ZA200403799B - Method for making propylene monofilaments, propylene monofilaments and their use - Google Patents

Method for making propylene monofilaments, propylene monofilaments and their use Download PDF

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Publication number
ZA200403799B
ZA200403799B ZA200403799A ZA200403799A ZA200403799B ZA 200403799 B ZA200403799 B ZA 200403799B ZA 200403799 A ZA200403799 A ZA 200403799A ZA 200403799 A ZA200403799 A ZA 200403799A ZA 200403799 B ZA200403799 B ZA 200403799B
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ZA
South Africa
Prior art keywords
monofilaments
additive
polypropylene
weight
abrasion
Prior art date
Application number
ZA200403799A
Inventor
Gustav Schuetze
Original Assignee
Rhodia Industrial Yarns Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhodia Industrial Yarns Ag filed Critical Rhodia Industrial Yarns Ag
Publication of ZA200403799B publication Critical patent/ZA200403799B/en

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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
    • 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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)

Description

PROCESS FOR MANUFACTURING POLYPROPYLENE MONOFILAMENTS,
POLYPROPYLENE MONOFILAMENTS AND THEIR USE
The invention relates to a process for manufacturing monofilaments of a polypropylene having a melt flow index (MFI) at 230°C/2.16 kg of 2 to 16 g/10 min and possessing a diameter of greater than 0.050 mm and an improved abrasion resistance; it also relates to monofilaments of this polypropylene and to their use.
Two-dimensional polypropylene textile articles are of great interest as chemically and mechanically resistant filtration means for filtering in the chemical, pharmaceutical and food industries. In this field, relatively coarse monofilaments, possessing a diameter of greater than 0.050 mm, are most particularly required.
Pure polypropylene monofilaments have the . drawback of forming a great deal of dust because of the low abrasion resistance of this substance during the weaving process. The problem of abrasion is also known in the case of other thermoplastics. Thus,
EP-A2-0 784 107 cites melt-spun monofilaments, of polyamide, polyester or polypropylene, that are intended for the forming fabrics of paper machines and for the wires of edge cutters. According to that patent, abrasion-resistant monofilaments are obtained using 70 to 99% by weight of a fibre-forming polymer and 1 to 30% by weight of a maleic-anhydride-modified polyethylene/polypropylene rubber, and other additives.
However, the examples are limited, as regards the fibre~forming polymer, to the polyamide nylon-6 and to polyethylene terephthalate, as well as a PA-6,6/PA-6
S copolyamide. The spinning rates are not specified.
Also known, from EP-A-1 059 370, is a process for manufacturing polypropylene multifilaments intended
N for textile applications. A metallocene-catalysed isotactic polypropylene is used as starting material, the melt flow index of the polypropylene having to be greater than 19 g per 10 minutes if it is desired to achieve the desired shrinkage characteristics. This is because, to obtain a low shrinkage, high MFI values are necessary. The above patent describes fully oriented yarns (FOYs) of 10 dpf (denier per filament) [0.03953 mm] and partially oriented yarns (POY) of 2 dpf (denier per filament) [0.01768 mm]. As regards the yarns manufactured, only general indications are given. There is no description of monofilaments.
The problem of the invention consists in providing an economic process for manufacturing coarse abrasion-resistant polypropylene monofilaments. Another problem of the invention consists in manufacturing coarse polypropylene monofilaments that exhibit improved abrasion resistance during weaving.
Yet another problem consists in providing the use of coarse monofilaments, possessing good abrasion resistance, for manufacturing two-dimensional high-
~ 2004/3798 performance articles, especially those intended for filtration.
The problems are solved according to the invention by the fact that 20 to 0.01% by weight of an additive is added to the polypropylene upstream of the extruder, the melt is spun into a water bath, drawn into monofilaments and the monofilaments are wound up. oo As polypropylene, it is preferred to use a homopolymer possessing a melt flow index of more than 2 g/10 min, preferably from 6 to 13 g/10 min, in particular from 12 to 13 g/10 min. An MFI of more than 16 g/10 min has the drawback of giving insufficient mechanical properties and poor abrasion resistance.
It is appropriate to use an additive consisting of a combination of lubricant, filler and heat stabilizer. As combination of lubricant, filler and heat stabilizer, 0.5 to 1.2% by weight of polyethylene waxes, calcium carbonate and sterically hindered phenols have proved to be particularly suitable.
In another embodiment, it is appropriate to use as additive 0.05 to 1.0% by weight, in particular 0.3 to 1.0% by weight, of a lubricant. Particularly . suitable, as lubricant, are metal salts of carboxylic acids, linear or branched hydrocarbons, fluoroelastomers and polydimethylsiloxanes.
In yet another embodiment, it is appropriate to use fillers as additive. As fillers, 0.01 to 0.1% by weight of aerosils and 0.1 to 1.0% by weight of calcium carbonate have proved to be particularly suitable.
In yet another embodiment, it is appropriate to use as additive 0.1 to 0.8% by weight of a heat stabilizer. Sterically hindered phenols, phosphites and phosphonites have proved to be particularly suitable.
In yet another embodiment, it is appropriate oo to use as additive 1 to 20% by weight of a polypropylene/polyethylene copolymer possessing a melting point = 140°C.
It is appropriate that the monofilaments possess a strength of at least 50 cN/tex for an elongation corresponding to the maximum tensile stress (elongation at break) of less than 35%, preferably less than 30%. This is because a strength of less than 50 cN/tex has the drawback of increasing the number of yarn breakages during the weaving process.
It is also important for the monofilaments to exhibit less than 0.05% abrasion. This is because when the abrasion is greater than 0.05%, irregularities occur during weaving, these being due to the reeds becoming fouled too quickly. This means that the interval between cleaning operations must be shortened, thereby reducing the productivity of the loom.
It is appropriate for the monofilaments to be characterized by a relative fracture energy > 100% after treatment for 24 hours at 120°C, in particular after oven ageing. This has the advantage of increasing the lifetime of the filters, when they are subjected to a relatively high thermal stress and to aggressive chemicals.
The monofilaments according to the invention 5 are particularly suitable for the manufacture of two- dimensional articles intended for filtration in the chemical, pharmaceutical and food industries.
The invention will now be described in greater detail with the aid of examples.
Polymers
As fibre-forming polymers, five different commercially available polypropylenes were used in the tests, these having a melt flow index (MFI) at 230°C/2.16 kg varying from 6.0 to 13.0 g/10 min. Each time, 50 kg of polypropylene granules were blended, using 100 kg drums and an eccentric mixer. The blending was carried out using two different processes, depending on the additive. The various processes will be explained in the examples. The granules/additive blend was fed directly into the extruder and melted.
Spinning conditions:
Extruder: diameter: 40 mm; barrel length: L/D = 25 extruder pressure: 80 bar output: 19.76 kg/h 5 heating zones;
Spinning pump: swept volume: 10 cm®/revolution;
Spinning unit: electrical heating;
~- 2004/3799
Metering pump: 23.19 rpm;
Dies: diameter: 0.7 mm length of the capillary: 3 x D;
Water bath: die/water bath distance: 45 mm | temperature: 30°C.
Drawing stages and heating channels
Drawing stage 1: 7 rolls; roll diameter: 230 mm; 1 heating channel
Drawing stage 2: 7 rolls: roll diameter: 230 mm; 1 heating channel
Drawing stage 3: 7 rolls; roll diameter: 230 mm; 2 heating channels
Drawing stage 4: 4 rolls; roll diameter: 230 mm.
Spinning preparation: 5% aqueous solution.
Preparation of the specimens:
Examples 2, 5, 6 and 7.
In the case of the pulverulent additives, such as the fillers, lubricant, heat stabilizer, etc., the process starts by rolling the granules for half an hour in an adhesive, such as BAYSILON M 100® (brand name of Bayer
AG), then the rest of the additives are added and blended for a further 1.5 hours.
Example 4:
In the case of modified polyolefins, the blend of granules, consisting of polypropylene and PP/PE modified polyolefin, having a melting point > 140°C, were blended for one hour.
The examples are given in Table 1.
fo lo] wim [\e} oe i] Brg Bo Ie Ll S © ~H | ON — © * —|o|n]ole oo 4 slels|sle Sd |e so x 2 [1)] wn > [1] . - 0 = 2 [0 005882 3 ou
PH a OHO © ~ ® Mm 3 N
I a |] YVo mm o]® M 56 0.8 23 |< gels] = Sle a © 4 ~H 85 Ae [~3e]8le wv ~[08 wn A 28H dE © Q
JOA PAN d 8 SEER °o [0] § a o [o] > AS + -- 0 oy + — © PA 5 og mnlelo|lalo ww — ~ iy e voy — hs LTS 0p Hx [vo|ofo|e naw v Nos RU e882 FF] FY PRIPNIPN FR. - Pp bd>a UAH fe JC o Naa Ia lo EC I a o or — TQ -~ 3 ke) 0HT TT ®.Q io] 0,T 0 [LIFE] o © oes wo na © 4 —
Co og fv] —]ofo on o|- o 0 eq QQ ©; — © 0 HY YY Dr Ra H © HA 0 oo gH o|m|laln]la nv o|~ © xy [ETRE J = oH a 22= nfnlnja|m mo | sa =H lo} 0TH 553 NfNjNN[N NNN 0 OP A a © ° 0 0 — oH SEP PDH = - P-H © © [14] Lo] £E © EWO CS own 0 0 50°03 Sow ~ oO HO
CHB E~ ofmlwlole = of 4 ~ EERE E11 D> _-D og oon SID N[ <0 0] ~ ~~ 30 OH 1
Vo oz YN. ss 0 ONAHO OPA gn gom olojolole col? § SP 0h gw = — nw ~~ -@ - ©
TT mM NC Ca La
QO > HOA Ppp Hp a fee) — I=) fi] od eH eH HP
Q S x 4d 33 23d = Ho <|mfe|=]|o wn ofa «| ® © 0 CLF ona * Hoololole clonal P 0 cOHHEH HH ea pd I) Ba i Enfict Ri] IRUIED- RE Sy A BE SH
E- cob EE = = = o A HS = > >No aa [ope » Oc uAd-d-A HAH om 5 oggoFEE EEA vox 0 OOO oo 238 Cll He mem Ml So SHH AHO
QO ~~ n|e~loldls vn nla] O Ad HNN ~~
NZ wnnjv|lv]lvy Vv nln nv ONO DODO D oO Ov. a) 0 QoQ o 0 o O00 oOo ee OO se ee» Ye)
Pom em NM™M mo.
H C—O —-) [2% Fo) Ren] op}
Lo Hl3lBlPIS ARS 0 vw PH HH Lay gE AAA AHA A HH hb Rogooo O00 p= a UR DR DR BERRY BREE 0) ~ OOOO © Oo|o © 0D, EOE OOO QO QO a To Ooo CQ [ol oll of ’ CT X OX 000 OO
Oe Od ~~ —~ ~~ — o o WD Dy Dy Dye Dy Dy Dv ™m ™ Og 4 Oe 0,0 QQ 0 OOO [2} . [To IES O00 0000» O00 0 N © LE EEE EEE EEE 2 = oa. CEI CA By ST FSFE RE SAR SW oF 2 J or, J. Hoo Ng >>Hi > > oo o oun o 0 OH 0 AAT ~~
T ~ — ~~ 2 O00 000 0TOOO 3 0 <9 0 = 0— 00am 0A : : @ sc eo se se es en ee se se © © HeHamswo ~ ©
Yd 000000 QQ OO o O AA A—~—=~ ~~ — fe NL EEEEEE BEE ™ © 5 — 0 er hm G0 m™Oom®EB ©CO
Ed] XX XX XX x ox xX
S * REE [3 ICI C3]
Te) o —
To allow more detailed explanations, the results have been shown graphically and photographically.
These show: - Figure 1, a histogram indicating the specific fracture energy, the oven ageing and the abrasion with and without the addition of an additive according to
Example 2; - Figure 2, the specific fracture energy, oven ageing and abrasion behaviour with and without the addition of an additive according to Example 4; - Figure 3a, the abrasion behaviour without the addition of an additive as a function of the yardage manufactured, according to Example 1 (control example) ; and - Figure 3b, the abrasion behaviour with the addition of an additive and as a function of the yardage manufactured, according to Example 8 (embodiment example).
In Figure 1, the pair of columns on the left represent the specific fracture energy, that in the middle the oven ageing and that on the right the abrasion, with and without the addition of an additive according to Example 2. The columns on the left reflect the prior art, those on the right represent the results obtained with the monofilaments according to the invention. This figure shows, as regards the abrasion, an improvement of more than 100%. Now, 100% less abrasion means that the loom can operate for at least twice as long before it has to be cleaned. Similar results are obtained for the relative fracture energy.
In this case, the right-hand column of the pair of 5S columns in the middle also shows an improvement, by more than 50%. The specific fracture energy, indicated by the right-hand column of the pair of columns on the left, also shows an improvement over the prior art.
Figure 2 differs from Figure 1 by the fact 10 that it shows the abrasion with and without the addition of an additive according to Example 4.
Figure 3a shows photographs indicating the state of the reeds of a loom after manufacturing 100 m, 200 m and 300 m of fabric from pure polypropylene monofilament [control trial (Example 1)]. The fouling by polypropylene fluff after 300 m is so great that the loom had to be stopped.
Figure 3b shows photographs indicating the state of the reeds of a loom after manufacturing 100 m, 200 m and 300 m of fabric from the monofilament according to the invention [illustrative example (Example 8). Even after manufacturing 300 m of fabric, the amount of fluff produced remains less than that obtained for 100 m in the control example.
Measurement methods: oe Melt flow index according to ASTM D1238;
e¢ Linear density determined according to
SN 197 012 and SN 197 015, supplemented by DIN 53830; ® Calculation of the mechanical constant MC from the following formula:
MC=,D -F [cN/tex where D denotes the elongation in % and F denotes the strength in cN/tex.
Description of the abrasion tests:
Manufacture of the sectional beams.
The sectional beams, each of 1000 m, were manufactured using monofilaments from 80 bobbins of the various embodiments.
Weaving trials:
The weaving trials were carried out on a ribbon loom.
Maximum possible production: 4000 rpm;
The shed was formed by cams;
Working mode: without weft reentry;
Warp yarn density: 22.80 yarns/cm;
Reed: opening, 0.175 mm dent thickness: 0.264 mm dent width: 7.0 mm;
Rotation speed of the loom: 1000 rpm;
Weaving speed: 10 m/h;
Weave: L1/1 sheet cloth.
Evaluation of the abrasion behaviour:
=~ 2004/3799 - visual assessment of the reeds; - gravimetric determination of the amount of fluff produced.
For the visual examination, the reeds were photographed after the operating time for 100 m, 200 m and preferably 300 m, and they were assigned a rating.
Evaluation of the abrasion behaviour using the gravimetric method is described below. To do this, all of the fluff formed is collected after the operating time for 300 m, it is weighed and related to the weight of the warp yarns using the following formula: amount deposited in % = eri number of warp yarns x — 1000
The monofilaments according to the invention, possessing a diameter 2 0.050 mm, are suitable for manufacturing, without abrasion, fabrics intended for filtration.
By virtue of the process according to the invention and the monofilament according to the invention, it has become possible for the first time to weave, practically without any abrasion, a polypropylene monofilament and to considerably increase the operating time of the loom. This monofilament is particularly suitable for the manufacture of fabrics used for filtration in the chemical, pharmaceutical and food industries.

Claims (6)

1. Process for manufacturing monofilaments of a polypropylene having a melt flow index (MFI) at 230°C/2.16 kg of 2 to 16 g/10 min and possessing a diameter of greater than 0.050 mm and an improved abrasion resistance, characterized in that from 20 to
0.01% by weight of an additive is added to the polypropylene upstream of the extruder, the melt is spun into a water bath, drawn into monofilaments and the monofilaments are wound up.
2. Process according to Claim 1, characterized in that 0.5 to 1.2% by weight of a combination of lubricant, filler and heat stabilizer is used as additive.
3. Process according to Claim 1, characterized in that 0.05 to 1% by weight of a lubricant is used as additive.
4. Process according to Claim 1, characterized in that 0.01 to 1.0% by weight of fillers is used as additive.
5. Process according to Claim 1, characterized in that 0.1 to 0.8% by weight of a heat stabilizer is used as additive.
6. Process according to Claim 1, characterized in that 1 to 20% by weight of a polypropylene/polyethylene copolymer possessing a melting point 2 140°C is used as additive.
ZA200403799A 2001-12-05 2004-05-18 Method for making propylene monofilaments, propylene monofilaments and their use ZA200403799B (en)

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CH22162001 2001-12-05

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US (1) US20050067733A1 (en)
EP (1) EP1453995B1 (en)
JP (1) JP2005511906A (en)
KR (1) KR100583668B1 (en)
CN (1) CN1311110C (en)
AU (1) AU2002352212B2 (en)
BR (1) BR0215107A (en)
CA (1) CA2468876C (en)
DE (1) DE60223714T2 (en)
ES (1) ES2301695T3 (en)
PL (1) PL373741A1 (en)
PT (1) PT1453995E (en)
TW (1) TWI227756B (en)
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868438B1 (en) * 2004-03-30 2006-10-20 Rhodia Chimie Sa MONOFILAMENTS BASED ON POLYPROPYLENE WITH IMPROVED PROPERTIES
FR2868437B1 (en) * 2004-03-30 2006-05-26 Rhodia Chimie Sa MONOFILAMENTS BASED ON POLYPROPYLENE WITH IMPROVED PROPERTIES
EP1786864B1 (en) 2004-09-08 2010-10-20 E.I. Du Pont De Nemours And Company Ethylene copolymer modified polypropylene and shaped articles
US7585796B2 (en) 2004-11-26 2009-09-08 Mitsui Chemicals, Inc. Polypropylene nonwoven fabric and use thereof
CN100357505C (en) * 2005-06-27 2007-12-26 江苏泽天化纤有限公司 High strength and low extending thick Denier polypropylene yarns and production thereof
KR100752500B1 (en) * 2006-09-08 2007-08-27 주식회사 휴비스 Fabric for clothes which have easy packing property and smooth out wrinkles easily
CN101851796B (en) * 2009-03-31 2012-05-30 中国水产科学研究院东海水产研究所 Method for processing wearable blended and modified polypropylene monofilaments for manufacturing fishing rope
CN101851798B (en) * 2009-03-31 2011-07-20 中国水产科学研究院东海水产研究所 Method for preparing fishing poly-blended and modified polypropylene monofilaments
TWI454601B (en) * 2011-04-15 2014-10-01 Shinkong Synthetic Fibers Corp A dyed-core type composite fiber, a method for producing the same, and a garment made using the same
TWI571491B (en) * 2015-10-19 2017-02-21 財團法人紡織產業綜合研究所 Masterbatch for abrasion resistant fiber and method of preparing the same and abrasion resistant fiber prepared by using the same
JP7062984B2 (en) * 2018-02-06 2022-05-09 東レ株式会社 Abrasion tester for the surface of raw yarn for woven fabrics

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112023A (en) * 1982-12-14 1984-06-28 Chisso Corp Production of monofilament with high knot strength
CN1006988B (en) * 1987-08-10 1990-02-28 上海市合成纤维研究所 The manufacture method of mashroom polypropylene fibre
CN1065497A (en) * 1991-04-03 1992-10-21 中国石油化工总公司 The manufacture method of polypropylene strength fibre
CZ5693A3 (en) * 1992-01-23 1993-10-13 Himont Inc Elastic yarn of polypropylene polymer and articles made therefrom
TW275076B (en) * 1992-12-02 1996-05-01 Hoechst Ag
JPH06313207A (en) * 1993-04-26 1994-11-08 Mitsubishi Rayon Co Ltd High-strength polypropylene fiber and its production
DE19600162A1 (en) * 1996-01-04 1997-07-10 Bayer Faser Gmbh Melt-spun, abrasion-resistant monofilaments
US5712033A (en) * 1996-08-05 1998-01-27 Owens-Corning Fiberglass Technology, Inc. Asphalt-containing organic fibers
US6797377B1 (en) * 1998-06-30 2004-09-28 Kimberly-Clark Worldwide, Inc. Cloth-like nonwoven webs made from thermoplastic polymers
ES2210929T3 (en) * 1998-09-16 2004-07-01 ROHM GMBH &amp; CO. KG POLYESTER FIBERS AND FILAMENTS AS WELL AS PROCEDURE FOR MANUFACTURING.
US6416699B1 (en) * 1999-06-09 2002-07-09 Fina Technology, Inc. Reduced shrinkage in metallocene isotactic polypropylene fibers
CN1111213C (en) * 2000-05-24 2003-06-11 中国科学院化学研究所 Preparation method of high strength polypropylene ribbon-like filament
WO2002031237A1 (en) * 2000-10-11 2002-04-18 Sunoco, Inc. (R&M) High strength spunbond fabric
TW579394B (en) * 2001-04-24 2004-03-11 Rhodia Industrial Yarns Ag Process for the production of fine monofilaments made from polypropylene, fine monofilaments made from polypropylene, and their application

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CN1599810A (en) 2005-03-23
AU2002352212A1 (en) 2003-06-17
WO2003048434A1 (en) 2003-06-12
CA2468876C (en) 2009-04-28
PT1453995E (en) 2008-01-30
PL373741A1 (en) 2005-09-05
DE60223714D1 (en) 2008-01-03
KR20040071169A (en) 2004-08-11
EP1453995B1 (en) 2007-11-21
AU2002352212B2 (en) 2006-09-28
TW200304510A (en) 2003-10-01
BR0215107A (en) 2004-11-03
CN1311110C (en) 2007-04-18
JP2005511906A (en) 2005-04-28
KR100583668B1 (en) 2006-05-26
DE60223714T2 (en) 2008-10-30
US20050067733A1 (en) 2005-03-31
EP1453995A1 (en) 2004-09-08
ES2301695T3 (en) 2008-07-01
CA2468876A1 (en) 2003-06-12
TWI227756B (en) 2005-02-11

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