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公开(公告)号：US3940543A
公开(公告)日：1976-02-24
申请号：US388164
申请日：1973-08-14
CPC分类号： D01F8/14 , Y10S264/26 , Y10T428/2929
摘要： A novel unitary spun polyester composite filament is provided. The composite filament consists essentially of (a) a block copolymer, as the first component, having a melting point of not lower than 170.degree.C and consisting essentially of 35-80 wt. % of a polyester, as the hard segment, predominantly containing a tetramethylene terephthalate unit and 20-65 wt. % of a long-chain glycol having a molecular weight of 500 to 5,000 as the soft segment, and (b) a polyester, as the second component, predominantly containing a tetramethylene terephthalate unit. The composite filament produces crimps superior particularly in percent of crimp and percent of crimp retentivity when drawn and relaxed.
摘要翻译： 提供了一种新颖的单丝聚酯复合长丝。 复合长丝基本上由（a）作为第一组分的嵌段共聚物组成，熔点不低于170℃，基本上由35-80重量％组成。 ％的聚酯作为硬链段，主要含有对苯二甲酸丁二醇酯单元和20-65wt。 ％的分子量为500〜5000的长链二醇作为软链段，（b）作为第二成分的聚酯主要含有对苯二甲酸丁二醇酯单元。 复合长丝产生卷曲，特别是卷曲百分比和拉伸和松弛时卷曲保持率的百分比。
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公开(公告)号：US3993834A
公开(公告)日：1976-11-23
申请号：US526383
申请日：1974-11-22
申请人： Kazuya Chimura , Takashi Kaneko , Shunichi Takashima , Ryuichi Nakazono , Masao Kawashima , Hiroyuki Ota , Kenji Tamura , Kazunori Kagawa , Kazushi Shimada , Toru Maeda , Hisao Anzai , Kenji Takoi , Kenichi Sakunaga
发明人： Kazuya Chimura , Takashi Kaneko , Shunichi Takashima , Ryuichi Nakazono , Masao Kawashima , Hiroyuki Ota , Kenji Tamura , Kazunori Kagawa , Kazushi Shimada , Toru Maeda , Hisao Anzai , Kenji Takoi , Kenichi Sakunaga
IPC分类号： C08F2/00 , B29C47/00 , C08F2/02 , C08F2/44 , D01F8/10 , G02B1/04 , G02B6/00 , D02G3/00 , B32B27/00
CPC分类号： G02B1/048 , D01F8/10 , G02B1/046 , B29C47/00 , B29C47/0014 , Y10S428/91 , Y10S428/918 , Y10T428/2929 , Y10T428/2938 , Y10T428/2967 , Y10T428/3154 , Y10T428/31544 , Y10T428/31928
摘要： There is provided a filament of improved light transmission having a sheath-core composite structure formed of a methyl methacrylate polymer core material and a fluorine-containing polymer sheath material. The light transmitting filament is characterized in that the methyl methacrylate polymer core material is prepared by the specific procedure of continuous bulk polymerization and subsequent removal of volatile contents, wherein the polymerization is performed in a continuously and thoroughly stirred reaction vessel at a low catalyst concentration and a relatively high temperature and with improved conversion. The light transmitting filament possesses an absorption coefficient (k) of no greater than 6 .times. 10.sup.-.sup.3 cm.sup.-.sup.1.
摘要翻译： 提供了具有由甲基丙烯酸甲酯聚合物芯材料和含氟聚合物护套材料形成的皮芯复合结构的改进的透光性的灯丝。 透光丝的特征在于甲基丙烯酸甲酯聚合物芯材料通过连续本体聚合的特定方法制备，随后除去挥发性成分，其中聚合在低催化剂浓度下在连续和彻底搅拌的反应容器中进行， 相对较高的温度和改善的转化率。 透光丝具有不大于6×10 -3 cm -1的吸收系数（k）。
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公开(公告)号：US3988387A
公开(公告)日：1976-10-26
申请号：US514132
申请日：1974-10-11
摘要： Polyester fibers which are characterized by excellent dyeability are produced by spinning a polymer obtained by an ester interchange reaction of 60 to 95% by weight of a polyester, containing at least 95 mol % of ethylene terephthalate units, and 40 to 5% by weight of a polyester containing at least 85 mol % of tetramethylene terephthalate units, wherein the filamentary polymer has a melting point Tm (.degree. C) of Tm.sub.o -5(.degree. C) .gtoreq. Tm .gtoreq. Tm.sub.o -20(.degree. C)(wherein Tm.sub.o is the melting point of the polyester containing at least 95 mol % of ethylene terephthalate unit) and a crystallizing temperature of 170.degree. C or higher.
摘要翻译： 以优异的染色性为特征的聚酯纤维通过将通过酯交换反应获得的聚合物通过纺丝60至95重量％的含有至少95摩尔％的对苯二甲酸乙二醇酯单元的聚酯和40至5重量％ 含有至少85摩尔％的对苯二甲酸对苯二甲酸酯单元的聚酯，其中所述长丝聚合物具有Tmo-5（℃）> / = Tm> / = Tmo-20（℃）的熔点Tm（℃）（其中 Tmo是含有至少95摩尔％对苯二甲酸乙二醇酯单元的聚酯的熔点，结晶温度为170℃以上。
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公开(公告)号：US4000605A
公开(公告)日：1977-01-04
申请号：US290318
申请日：1972-09-19
IPC分类号： D02G1/02
CPC分类号： D02G1/022 , D02G1/0213
摘要： Method for producing a crimped yarn in which a thermoplastic yarn is false twisted at a speed exceeding 300 m/min. by using a twisting tube comprising a friction twisting surface of wear-resistant material having a high frictional coefficient, the false twisting being performed under a particular relationship among the yarn speed, surface speed of the twisting tube, denier of the yarn, and the yarn tension at the inlet and outlet sides of the twisting tube.
摘要翻译： 制造热缩性纱线以超过300m /分钟的速度假捻的卷曲纱线的制造方法。 通过使用包含具有高摩擦系数的耐磨材料的摩擦扭转表面的扭转管，在捻纱的表面速度，纱线的旦数和纱线的纱线速度，表面速度之间的特定关系下进行假捻 扭力管入口侧和出口侧的张力。
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