WO2008029996A1 - Composition de polyuréthane-urée résistante au chlore - Google Patents

Composition de polyuréthane-urée résistante au chlore Download PDF

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Publication number
WO2008029996A1
WO2008029996A1 PCT/KR2007/003887 KR2007003887W WO2008029996A1 WO 2008029996 A1 WO2008029996 A1 WO 2008029996A1 KR 2007003887 W KR2007003887 W KR 2007003887W WO 2008029996 A1 WO2008029996 A1 WO 2008029996A1
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Prior art keywords
elastic fiber
chlorine resistant
polyurethaneurea elastic
composition
preparing
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PCT/KR2007/003887
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English (en)
Inventor
Okhyun Choi
Ickgy Shin
Inrak Jung
Sang Ok Jeong
Wan Ouk Kim
Young Kyong Lee
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Tae Kwang Ind.Co., Ltd.
Nanotechceramics Co., Ltd
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Application filed by Tae Kwang Ind.Co., Ltd., Nanotechceramics Co., Ltd filed Critical Tae Kwang Ind.Co., Ltd.
Publication of WO2008029996A1 publication Critical patent/WO2008029996A1/fr

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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
    • 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
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • 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
    • D01D5/04—Dry spinning methods
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/72—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyureas
    • 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
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic

Definitions

  • the present invention relates to compositions for preparing polyurethaneurea elastic fiber having excellent chlorine resistant property and uniformity, high durability against chlorine-containing water of a swimming pool and excellent quality as a cloth material after mixture-knitting with nylon, and a chlorine resistant polyurethaneurea elastic fiber prepared by using the same.
  • Polyurethaneurea elastic fiber is prepared by dry or melt Spinning of a polymer obtained from chain extension of a prepolymer having isocyanate end group, which was synthesized from a high molecular weight polyol and excess amount of organic diisocyanate, with a diamine; and finds its use as an elastic functional material for various clothes such as foundation garments, socks, panty hoses and swimming wears by means of mixture-knitting with polyamide fiber, polyester fiber or a natural fiber.
  • the polyurethaneurea elastic fiber is deteriorated in physical properties, since the polyetherglycol structure constituting the soft segment of the polymer is decomposed by chlorine-containing bleach water or active chlorine in a swimming pool for disinfection. Therefore, in order to improve chlorine resistant property of polyurethaneurea elastic fiber employed for a swimming wear, polyurethane elastic fibers using polyesterglycol have been developed. However, aliphatic esters, having high biological activity, are apt to be attacked by fungi, with insufficient chlorine resistance. In order to improve chlorine resistance of polyether polyurethanes, various chlorine resistant additives have been used. Japanese Patent 1982-29609 and USP 4,340,527 used zinc oxide to improve the chlorine resistant property.
  • Japanese Patent 1984-133248 employed hydrotalcite to improve chlorine resistant property.
  • hydrotalcite used as a chlorine resistant additive was so hygroscopic that it caused problems of increasing gel formation of the polymer, increasing of filter pressure and reducing of spinning ability.
  • Japanese Patent 1991-243446 employed a hydrotalcite coated with a fatty acid to prevent water absorption of the chlorine resistant additive and to improve dispersiveness, thus enhancing the chlorine resistant property of polyurethaneurea elastic fiber.
  • the hydrotalcite reacts with additives employed for light resistance and gas resistance of the polyurethaneurea elastic fiber, to convert the color of the product yellow during the spinning.
  • USP 5,626,960 employed a mixture of Huntite and hydromagnesite to enhance chlorine resistant property.
  • the chlorine resistant material was not coated so that problems of gel formation of the polymer due to hygroscopicity of the material and poor dispersion occurred to increase the filter pressure and fiber breakage rate, and the final product turned yellow.
  • An object of the present invention is to provide a composition for preparing polyether polyurethaneurea elastic fiber having excellent chlorine resistant property.
  • Another object of the present invention is to provide an additive to supplement anti-oxidation, light resistance and waste gas resistance of polyurethane elastic fiber, a chlorine resistant additive and an additive composition having good compatibility with polyurethaneurea, and to prepare polyurethaneurea elastic fiber by using the same.
  • the present invention provides polyurethaneurea elastic fiber by- using basic magnesium carbonate as a chlorine resistant additive. While the basic magnesium carbonated employed in the present invention may be used without being coated, it is advantageously employed with organic or inorganic coating to enhance dispersiveness and moisture resistance.
  • composition for preparing chlorine resistant polyurethaneurea elastic fiber according to the present invention is characterized in that it comprises 0.1-10% by weight of basic magnesium carbonate coated with one or more substance (s) selected from C1-C30 fatty acids, fatty acid metal salts, fatty acid esters, fatty acid phosphoric esters, silica, silane, polyorganosiloxanes, and polyorganosiloxane/polyorganohydrogensiloxane mixtures via dry or wet process, as a chlorine resistant additive.
  • substance (s) selected from C1-C30 fatty acids, fatty acid metal salts, fatty acid esters, fatty acid phosphoric esters, silica, silane, polyorganosiloxanes, and polyorganosiloxane/polyorganohydrogensiloxane mixtures via dry or wet process, as a chlorine resistant additive.
  • the present invention provides a polyurethaneurea elastic fiber having enhanced chlorine resistant property by adding a coated basic magnesium carbonate during the preparation of the polyurethaneurea elastic fiber as a chlorine resistant additive together with other additives .
  • the processes for preparing the basic magnesium carbonate employed in the present invention include a soda ash process which utilizes a reaction of soluble magnesium salt such as magnesium chloride with sodium carbonate, a carbo-stable process which utilizes a reaction of soluble magnesium salt with ammonium carbonate, a gas process which utilizes a reaction of magnesium hydroxide with carbonic acid gas, and the like.
  • magnesium bicarbonate Mg (HCO 3 ) 2
  • the basic magnesium carbonate obtained by the reaction is pulverized several times by means of a hammer mill or a jet mill in order to adjust the particle size as desired.
  • the basic magnesium carbonate finally- obtained is aggregated particles comprising primary particles of flake shape having 0.01-0.2 ⁇ m of thickness and 0.1-2 ⁇ m of diameter.
  • Mean particle size of the aggregated particle is 0.5-15 ⁇ m, with amorphous shape.
  • the process for coating the basic magnesium carbonate may ⁇ be carried out in a dry mode or a wet mode .
  • 3 parts by weight of stearic acid is stirred with 100 parts by weight of basic magnesium carbonate in a super mixer under the condition of 110 ° C and 500 rpm for 20 minutes to provide basic magnesium carbonate coated with stearic acid.
  • 600 parts by weight of water is added to 100 parts by weight of basic magnesium carbonate, and the mixture is stirred thoroughly, and then 3 parts by weight of stearic acid dissolved in ethanol is added thereto and the resultant mixture is reacted with stirring at 90 ° C for 30 minutes.
  • the reaction mixture is filtered and dried by heating at 150 ° C to produce basic magnesium carbonate coated with stearic acid.
  • the amount of the coating agent employed is 0.1-20 parts by weight, more preferably 1-10 parts by weight on the basis of the weight of basic magnesium carbonate.
  • the basic magnesium carbonate according to the present invention is represented by Chemical Formula 1:
  • the basic magnesium carbonate can be represented by one of Chemical Formulas 2 to 6.
  • hydromagnesite, dihydromagnesite, magnesite or the like may be used.
  • the mean particle size of the basic inorganic substance employed according to the invention is not more than 10 ⁇ m, more preferably not more than 3 ⁇ m. If the particle size is more than 10 ⁇ m, more milling process is performed during the preparation of the additive slurry to increase the thermal hysteresis that is given to the chlorine resistant material.
  • the size of the inorganic particle employed should be 10 ⁇ m or less, preferably 3 ⁇ m or less for continuity of spinning and production stability, being advantageous of application to the process.
  • Secondary aggregation of the basic inorganic substance used as a chlorine resistant material occurs in a polar solvent used in preparing a polyurethaneurea elastic fiber such as N,N-dimethylacetamide, N,N-dimethylformamide, to induce raise of filter pressure during the spinning process and breakage of fibers.
  • a polar solvent used in preparing a polyurethaneurea elastic fiber such as N,N-dimethylacetamide, N,N-dimethylformamide
  • the activity of the chlorine resistant additive according to the invention can be increased by thermal treatment.
  • the activity can be increased by removing the surface water or crystal water partly via thermal treatment at 300 ° C or less, or completely via thermal treatment at 400 ° C or more.
  • one or more substance (s) selected from fatty acids, fatty acid metal salts, fatty acid esters, fatty acid phosphoric esters, silica, silane, polyorganosiloxanes, and polyorganosiloxane/polyorganohydrogensiloxane mixtures may be coated in an amount of 1-20 parts by weight of basic magnesium carbonate via dry or wet process.
  • the coating agent may be selected from higher fatty acids such as stearic acid, oleic acid, palmitic acid and lauric acid; higher alcohols such as stearyl alcohol, oleyl alcohol and laury alcohol; fatty acid esters such as glyceryl monostearate, stearyl oleate, lauryl oleate; fatty acid metal salts such as sodium stearate, magnesium stearate, calcium stearate, sodium oleate, sodium palmitate, sodium laurate, sodium laurylsulfonate,- fatty acid phosphoric esters such as stearyl phosphate, oleyl phosphate, lauryl phosphate, tridecyl phosphate, butyl phosphate having C 4 ⁇ 30 straight or branched alkyl group; silicas such as calcium silicate (Water- glass No.3 from DC Chemical Co., Ltd.); silanes such as the compound represented by chemical formula (RO) 3 SiR" (R') si
  • the coating of the material can be performed in a dry or a wet mode.
  • the coating agent is added as a liquid or an emulsion to the slurry of basic magnesium carbonate particles, and the mixture is sufficiently mixed and dried.
  • the coating agent is added as a liquid, emulsion or solid phase, while sufficiently stirring the basic magnesium carbonate particles by using a mixer such as super mixer and Henschel mixer, and the resultant mixture is fully mixed under heating or without heating.
  • the chlorine resistant material according to the present invention may be treated by coating or encapsulation to improve the moisture resistance and dispersiveness .
  • coating means a process of attaching an organic or an inorganic coating agent to only parts of the surface of chlorine resistant material
  • encapsulation means a process of attaching an inorganic coating agent to entire surface of chlorine resistant material.
  • minute holes of nano-size are distributed so that chlorine resistant agent inside can react with active chlorine.
  • the material When the basic magnesium carbonate is used without coating in the present invention, the material is liable to absorb moisture. Thus, careful moisture control is required from the packing stage of the product to the use of the moisture-resistant package after storage in a storehouse. If an apparatus for drying the material is incorporated at the final usage, it may be utilized without coating.
  • Another method to prevent moisture absorption is to disperse a chlorine resistant material in DMAc solvent in advance to prepare a slurry and stored in a drum, the slurry is then directly introduced to a tank for preparing additive slurry in the field.
  • the moisture management of the basic magnesium carbonate as a chlorine resistant additive is very important. Owing to moisture absorbed by the chlorine resistant material, gel formation or poor dispersion occurs in the second polymer to cause problems of raising the filter pressure during the process and increasing breakage of fiber.
  • the chlorine resistant material is coated with less than 1 part by weight of coating agent, sufficient moisture prevention or sufficient dispersive effect during the preparation of slurry cannot be expected.
  • the coating agent is preferably used in an amount of l ⁇ 20 parts by weight.
  • the basic magnesium carbonate to which fatty acid or silane type coating agent is attached is added in an amount of 0.1-10% by weight of total dope solution. If the amount is less than 0.1% by weight, chlorine resistant property cannot reach the expected value. On the other hand, if it is more than 10% by weight, the chlorine resistant performance increases but mechanical properties such as strength, elongation and modulus of the fiber decreases. Thus, the above range is most preferable.
  • the coated basic magnesium carbonate to be added is preferably dispersed in N,N-dimethylacetamide solvent and pulverized and dispersed by using a wet pulverizer to make the size of 40 ⁇ m or less, more preferably 20 ⁇ m or less before use.
  • Additive slurry (1.5 kg), that is pulverized and dispersed by using a wet pulverizer, is passed through a filter having 25 mm of diameter and 20 ⁇ m of pore size under a pressure of 3 kg/cm 2 .
  • the standard for controlling the pulverized and dispersed slurry is whether the amount of the slurry passed through is at least 85% of the amount introduced.
  • the weight of the slurry passed through the filter is an important index of operation continuity in the process for spinning a polyurethaneurea elastic fiber. Thus, the more slurry is passed through, the better the operation continuity is during the dry spinning.
  • hydromagnesite with fatty acid attached is prepared by pulverizing and dispersing an additive slurry comprised of the conventional additives used in polyurethaneurea elastic fiber such as titanium dioxide, a gas stabilizer, a light stabilizer, an anti-oxidant, spinning ability enhancer and N,N-dimethylacetamide solvent, by using a high performance wet pulverizer to provide 10 ⁇ m of the particle size of inorganic additive in the slurry, preferably not more than 3 ⁇ m of mean particle size. It is then added to a dope and spun by dry spinning process to prepare a polyurethaneurea chlorine resistant elastic fiber.
  • the conventional additives used in polyurethaneurea elastic fiber such as titanium dioxide, a gas stabilizer, a light stabilizer, an anti-oxidant, spinning ability enhancer and N,N-dimethylacetamide solvent
  • the first polymer is uniformly dissolved in N,N-dimethylacetamide (DMAc) to give a first polymer mixture in which the content of unreacted diisocyanate has been certainly adjusted.
  • DMAc N,N-dimethylacetamide
  • Ethylene diamine and 1, 2-diaminopropane as the chain extender and diethylamine as the chain terminator are dissolved in N, N- dimethylacetamide, and the mixture is introduced with the first polymer mixture to a second polymerizer to obtain a second polymer (35% by weight) .
  • a second polymer 35% by weight
  • a slurry having not more than 10% by weight of solid content which is comprised of titanium dioxide, a gas stabilizer, an anti-oxidant, a dyeability enhancer, magnesium stearate and hydromagnesite (4% by weight) and N, N- dimethylacetamide solvent.
  • the slurry is incorporated to the process after a pulverizing and dispersing stage by using a wet pulverizing device to provide a particle size of the inorganic additives in the slurry of 10 ⁇ m or less.
  • the spin dope is passed through a static mixer of pipe shape to homogeneously mix the additive slurry with the second polymer, then the dope is spun at a temperature of 240 ⁇ 255 ° C immediately downstream the spinning nozzle with 700-1200 m/min of spin rate in a dry spinning mode to prepare a polyurethaneurea chlorine resistant fiber. After spinning, the residual solvent content in the spandex fiber is adjusted to 1.0% by weight or less.
  • the inherent viscosity was 1.25 when measured in a solution in N,N-dimethylacetamide (0.5 g/100 ml)
  • the polyurethaneurea chlorine resistant fiber prepared as described above has excellent uniformity and spinning ability, and provides excellent quality of cloth material having good elastic resilience, strength retention and chlorine resistant property after dyeing process.
  • Said chlorine resistant polyurethaneurea elastic fiber is also included in the scope of the invention.
  • Viscosity of a polymer with chain extension and chain termination having been completed is measured at 40 ° C by using a Brookfield Viscometer (B type), and reported in poise.
  • 0.5 g of a polymer in 100 ml of N,N-dimethylacetamide is measured by Ubbelohde viscometer in a constant temperature chamber at 30+0.5 ° C, to obtain the inherent viscosity of the polymer.
  • Two grams of sample is dispersed in 25 ml of ethyl alcohol, and pH of the material is measured by using a pH electrode.
  • the pH of the material is controlled to be 7-9.
  • a sample is treated with hot air at 180 ° C for 1 minute while it is stretched by 100%, and measured its strength in a tensile tester.
  • the ratio of the strength after the dry-heat treatment to the strength of untreated fiber is the strength retention. The higher the strength retention is, the higher the heat resistance is.
  • Chlorine resistant property of fiber A sample under 50% of stretching is impregnated in a bath having 20 ppm of effective chlorine concentration (pH 7) , and the ratios of the strength after 24, 48 and 72 hours are determined respectively as the strength retention. The higher the strength retention is, the higher the chlorine resistant property is. The sample length before and after the chlorine treatment are measured to determine the elastic resilience. The higher the resilience is, the higher the chlorine resistant property is. (Criteria of fiber for chlorine resistance property: at least 70% of strength retention after 48 hr treatment)
  • the cloth material is cut along warp direction to give a test piece of 2cm x 20cm. While being stretched by 50%, the test piece is impregnated in a bath having 200 ppm of effective chlorine concentration (pH 7) at 25 ° C . The ratio of 50% stretch strength over time is determined as the strength retention. The higher the retention is, the higher the chlorine resistant property is. 9) Measuring number of polymer gel particles
  • a surface of spandex package is measured three times to obtain L/a/b value of the raw fiber.
  • the first polymer was uniformly dissolved in N,N-dimethylacetamide (DMAc) in a high performance dissolver to give a first polymer mixture in which the content of unreacted diisocyanate has been constantly adjusted to 2.64+0.02 mol%.
  • DMAc N,N-dimethylacetamide
  • Ethylene diamine and 1,2- propylenediamine as the chain extender and diethylamine as the chain terminator were dissolved in DMAc, and the mixture is introduced with the first polymer mixture to a second polymerizer.
  • Inherent viscosity of the polymer measured in a solution in N,N-dimethylacetamide (0.5 g/100 ml) was 1.0.
  • inorganic substances were pulverized and dispersed by using a wet pulverizer to make the particle size not more than 10 ⁇ m.
  • a wet pulverizer was used to pulverize the inorganic additives among the additive slurry, to make the mean particle size of the inorganic substances not more than 10 ⁇ m.
  • the slurry was introduced to the process.
  • homogeneous mixing of the final polymer with the additives is important, so that a static mixer having a cylindrical pipe shape was employed for homogeneous mixing of the additives with the final polymer.
  • the polyurethaneurea product thus prepared contained about 35% of solid, being a polymer solution having 4350 poise (40 ° C) of viscosity, which is suitable for spinning.
  • the additive slurry to be mixed with the final polymer was maintained at 45 ° C.
  • the polymer solution for spinning thus prepared was subjected to dry spinning wherein the solution was constantly pumped by a gear pump to a spinning can having the atmosphere at 250 ° C to evaporate the solvent, at a spinning rate of 900 m/min.
  • the physical properties are shown in Table 2.
  • An elastic fiber was prepared according to the same procedure described in Example 1, but using hydromagnesite having mean particle size of not more than 10 ⁇ m (Airlite-S3 from Nanotech Ceramics) coated via wet mode with stearic acid as the chlorine resistant material .
  • An elastic fiber was prepared according to the same procedure described in Example 1, but using non-coated hydromagnesite having mean particle size of not more than 10 ⁇ m (Airlite-S3 from Nanotech Ceramics) as the chlorine resistant material.
  • Example 4 Example 4
  • An elastic fiber was prepared according to the same procedure described in Example 1, but using 2% by weight of hydromagnesite (Airlite-Sl, from Nanotech Ceramics) .
  • An elastic fiber was prepared according to the same procedure described in Example 1, but hydrotalcite (DHT-4A, from Nippon Kyowa) was used instead of hydromagnesite in an amount of 4% by weight.
  • hydrotalcite DHT-4A, from Nippon Kyowa
  • b value Yellowing is observed when it is 7 or more.
  • the elastic fiber according to the process of the invention exhibits very excellent chlorine resistant property and spinning ability.
  • the polyurethaneurea elastic fiber prepared according to the present invention has excellent chlorine resistant property and spinning ability, and provides, after dyeing process, a cloth material having excellent chlorine resistant property, elastic resilience and strength retention.

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

Abstract

La présente invention concerne une composition servant à préparer une fibre élastique en polyuréthane-urée présentant une excellente propriété de résistance au chlore et d'uniformité, une grande durabilité contre l'eau chlorée des piscines et une excellente qualité du tissu en tricot mélangé de fibre de nylon. Elle concerne également une fibre élastique en polyuréthane-urée préparée avec la composition de l'invention. L'invention concerne plus particulièrement une composition servant à préparer une fibre élastique en polyuréthane-urée, qui se caractérise en ce qu'elle comprend 0,1 à 10% en poids de carbonate de magnésium basique enduit de 1 à 10% en poids d'une ou de plusieurs substance(s) sélectionnée(s) dans le groupe constitué par des acides gras C1-C30, des sels métalliques d'acides gras, des esters phosphoriques d'acides gras, de la silice, du silane, des polyorganosiloxanes, et des mélanges polyorganosiloxane/polyorganohydrogènesiloxane, ladite préparation étant effectuée par un procédé par voie sèche ou par voie humide. L'invention concerne en outre une fibre élastique en polyuréthane-urée préparée avec la composition de l'invention.
PCT/KR2007/003887 2006-09-04 2007-08-14 Composition de polyuréthane-urée résistante au chlore WO2008029996A1 (fr)

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KR1020060084789A KR100780602B1 (ko) 2006-09-04 2006-09-04 항염소성 폴리우레탄우레아 탄성섬유 제조용 조성물
KR10-2006-0084789 2006-09-04

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