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公开(公告)号：DE68926186T2
公开(公告)日：1996-10-24
申请号：DE68926186
申请日：1989-06-29
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI HIROFUMI , TAKEDA TOSHIYUKI
Abstract: A polyurethane polyamide self-crimping conjugate fiber having eccentric conjugate form, comprises a high hardness polyurethane (1) having a Shore hardness D of 58 to 75 and a polyamide (2) having a melting point of at least 200 C, which has a excellent extension stress properties and excellent heat resistance. The conjugate fiber is suitable for hosiery products and tricot products, having excellent transparency of fabric and excellent close-fitting properties.
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公开(公告)号：DE68926186D1
公开(公告)日：1996-05-15
申请号：DE68926186
申请日：1989-06-29
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI HIROFUMI , TAKEDA TOSHIYUKI
Abstract: A polyurethane polyamide self-crimping conjugate fiber having eccentric conjugate form, comprises a high hardness polyurethane (1) having a Shore hardness D of 58 to 75 and a polyamide (2) having a melting point of at least 200 C, which has a excellent extension stress properties and excellent heat resistance. The conjugate fiber is suitable for hosiery products and tricot products, having excellent transparency of fabric and excellent close-fitting properties.
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公开(公告)号：JPH0280617A
公开(公告)日：1990-03-20
申请号：JP16741989
申请日：1989-06-29
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUSHI , TAKEDA TOSHIYUKI
Abstract: PURPOSE:To obtain the title fiber having high recovery stress characteristics after forming crimp and improved heat resistance and prevented in deterioration of product characteristics in heat treatment and suitable as a raw material for stocking by eccentrically compositing a polyurethane having >=58 shore hardness D and polyamide. CONSTITUTION:The aimed fiber obtained by eccentrically compositing a polyurethane having >=58 shore hardness D and polyamide having >=-200 deg.C melting point. Furthermore, ratio of hard segment of polyurethane to soft segment thereof is kept to 17:83-25:75 based on polymerization ratio so as to enhance shore hardness of the polyurethane. As the polyurethane, a polycarbonate based polyurethane or polyurethane containing the polycarbonate based polyurethane as a copolymer component or mixture component in an amount of >=10wt.% is preferably used.
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公开(公告)号：JPS5796812A
公开(公告)日：1982-06-16
申请号：JP17202680
申请日：1980-12-08
Applicant: TORAY INDUSTRIES
Inventor： KATOU TETSUYA , TAKEDA TOSHIYUKI , KISHIMOTO YASUJI , SONOYAMA KATSUMI
Abstract: PURPOSE:To improve the moldability of polyamide pellets, by applying a small quantity of an alkylene oxide addition product of a compound, which has a functional group capable of undergoing addition reaction with an alkylene oxide, onto the surfaces of the polyamide pellets. CONSTITUTION:An aliphatic, cycloaliphatic or alkyl group containing aromatic compound (for example, butyl alchol, cyclohexyl alchol and nonyl phenol) with four or more carbon atoms and having a functional group (for example, an amino group, carboxyl group, hydroxyl group, amide group, etc.) capable of undergoing addition reaction with an alkylene oxide is subjected to addition reaction with an alkylene oxide (for example, ethylene oxide or propylene oxide) to prepare an alkylene oxide addition product or its deriavative. The resulting addition product is applied in an amount of 5-100ppm onto the surfaces of polyamide pellets (for example of nylon 6, nylon 12 or the like) to obtain the captioned polyamide pellets.
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公开(公告)号：JPS5352718A
公开(公告)日：1978-05-13
申请号：JP12732276
申请日：1976-10-25
Applicant: TORAY INDUSTRIES
Inventor： HIDAKA TOSHIAKI , TAKEDA TOSHIYUKI , MIZUTANI SHIGERU , TSUCHIMOTO AKIHARU
Abstract: PURPOSE:To obtain crimpable fibers, free from peeling of sheaths from cores and dyeing specks, having good heat resistance, by composite spinning of polycapramide and a polyurethane of specific composition in the form of eccentric sheath-core type fibers.
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Patent Agency Ranking
公开(公告)号：JPH0418117A
公开(公告)日：1992-01-22
申请号：JP11603390
申请日：1990-05-02
Applicant: TORAY INDUSTRIES
Inventor： KATO TETSUYA , HORI HIDEO , TAKEDA TOSHIYUKI
Abstract: PURPOSE:To provide the title fiber good in melt spinnability, easy in its industrial production through a master polymer process, and excellent in transparency, clear color developability and mechanical strength, etc., containing each specified diamide compound and salt compound at each specified proportion. CONSTITUTION:The objective fiber containing (A) 0.01-1.0wt.% (based on the polyamide) of a diamide of formula I or II (R1 and R4 are each 10-20C alkyl; R2 and R3 are each H, methyl or ethyl; n is 1-10) and (B) 1-30wt.% (based on the component A) of at least one salt compound selected from sulfuric ester salts, sulfonates and polycarboxylates.
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公开(公告)号：JPH0280616A
公开(公告)日：1990-03-20
申请号：JP23077088
申请日：1988-09-14
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUSHI , TAKEDA TOSHIYUKI
Abstract: PURPOSE:To obtain the title fiber having improved stability in composite spinning and spinning without impairing peeling resistance of core-sheath component by each using a specific polyurethane composition and polycaramide as core component and sheath component and compositing the both components into an eccentric core-sheath type fiber. CONSTITUTION:The aimed fiber obtained by using a polyurethane composition containing >=10wt.% polycarbonate based polyurethane as a copolymer component or mixed component and having 1.8-3 relative viscosity of dimethylacetamide as core component and simultaneously using polycapramide as sheath component and compositing the both components into an eccentric core-sheath type fiber. Furthermore, the above-mentioned polyurethane composition is e.g., obtained by polymerizing a 1:1 mixed polyol of polycarbonate and polycaprolactone with 1,4-butylene glycol and diphenylmethane diisocyante which are chain extenders by one shot method.
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8.发明专利
公开(公告)号：JPH01272808A
公开(公告)日：1989-10-31
申请号：JP10061888
申请日：1988-04-22
Applicant: TORAY INDUSTRIES
Inventor： KOBAYASHI YASUSHI , TAKEDA TOSHIYUKI , KATO HIROSHI
Abstract: PURPOSE:To control temperature of a spinning pack and temperature of polymer passageways before the spinning pack in proper temperature levels, respectively, by heating the interior of a spinning box equipped with the polymer passageways and the spinning pack by a totally heating means and heating the spinning pack by an individually heating means. CONSTITUTION:The interior of a spinning box 8 is heated by a totally heating means 9 and approximately the whole part in the spinning box is heated to a temperature range suitable for melt spinning. A spinning pack 7 is equipped with an independently heating means 12 separated from the heating means 9 is set and the temperature of the spinning pack 7 is sufficiently raised to a proper temperature.
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公开(公告)号：JPS60181307A
公开(公告)日：1985-09-17
申请号：JP3418884
申请日：1984-02-27
Applicant: TORAY INDUSTRIES
Inventor： KUWABARA MASATO , TAKEDA TOSHIYUKI , KATOU TETSUYA
Abstract: PURPOSE:A granular filter medium, obtained by forming a cured fixed film of a modified silicone on the surface of alumina grains, effective for remarkable reduction of broken yarns just after starting spinning and prevention of deterioration in yarn quality, and useful for melt spinning of thermoplastic synthetic fibers. CONSTITUTION:An alumina based granular filter medium obtained by dipping alumina based grains, preferably having 10-350 mesh grain size in a solution of a modified silicone, e.g. methylhydrogensilicone, in a solvent to apply preferably 0.05-0.5wt% modified silicone thereto, heating the alumina based grains under reduced pressure to remove the solvent, and curing the modified silicone under heat-treating at 100-300 deg.C to form a fixed film thereon.
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公开(公告)号：JPS6059122A
公开(公告)日：1985-04-05
申请号：JP16042783
申请日：1983-09-02
Applicant: TORAY INDUSTRIES
Inventor： TAKEDA TOSHIYUKI , KATOU TETSUYA , HANADA HIROSHI
Abstract: PURPOSE:To obtain antistatic combined filament yarns having improved mechanical properties and high-degree of processability, by melting separately an electrically conductive polymer and an electrically nonconductive polymer, feeding the molten polymers separately to the interior and exterior of a spinneret, extruding conjugate fibers of both through inner extrusion holes of the spinneret, extruding the latter through the outer extrusion holes, combining both, and drawing the resultant filament yarn. CONSTITUTION:An electrically conductive polymer containing 15-50wt% electrically conductive carbon black is melted and fed to the interior of a spinning pack 3, and an electrically nonconductive polymer having fiber-forming properties is melted and fed to the exterior of the spinning pack 3. Both polymer streams are combined in the interior of spinnerets 4-6 under the spinning pack 3, and electrically conductive conjugate filament yarn of sheath-core type is extruded through the inner extrusion holes 62' of a spinneret 6. An electrically nonconductive filament yarn is extruded through the outer extrusion holes 62 of the spinneret 6, and both filament yarns are combined and then drawn.
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