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    • 1. 发明授权
    • Oriented polyamide fiber and process for producing same
    • 定向聚酰胺纤维及其制造方法
    • US5882793A
    • 1999-03-16
    • US762100
    • 1996-12-09
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • D01F6/90D02G3/00B29C47/06
    • D01F6/90Y10T428/2913Y10T428/2969
    • There are disclosed oriented polyamide fiber which comprises at least 20% by weight of a crystalline polyamide or a copolymerized polyamide each produced by polymerizing a monomer containing m-xylylenediamine as a diamine component and adipic acid as a dicarboxylic acid component each in an amount of at least 70 mol % (A) and which has a Young's modulus of at least 400 kgf/mm.sup.2, a loop strength of at least 4.5 gf/D, a knot tensile strength of at least 3.5 gf/D and a roundness of from 97 to 100%; and a process for producing oriented polyamide fiber which comprises the steps of melting a polyamide resin comprising at least 20% by weight of the above crystalline polyamide or copolymerized polyamide (A); spinning the molten resin through a spinneret; pulling the spun product into a coolant bath placed beneath the face of the spinneret to produce non-oriented yarn; and thereafter orienting the non-oriented yarn to a draw ratio of from 2.5. to 8.0 at a temperature not lower than the Tg of the polyamide and not higher than the melting point thereof, wherein the draft ratio is from 1.0 to 3.0, and the temperature of the coolant bath (T) satisfies the relational expression: Tg-30.ltoreq.T.ltoreq.Tg+10 (.degree.C.). The oriented polyamide fiber is useful for use in sporting goods and industrial materials such as strings for a racket, rubber reinforcing materials and filter cloth materials for paper making by virtue of its improvement in strength, modulus of elasticity and roundness.
    • 公开了取向聚酰胺纤维,其包含至少20重量%的结晶性聚酰胺或共聚聚酰胺,其通过将含有间苯二甲胺作为二胺组分的单体和作为二羧酸成分的己二酸各自以 至少70mol%(A),并且其杨氏模量为至少400kgf / mm2,环强度为至少4.5gf / D,结拉伸强度为至少3.5gf / D,圆度为97至 100%; 和一种制备定向聚酰胺纤维的方法,其包括熔化包含至少20重量%上述结晶聚酰胺或共聚聚酰胺(A)的聚酰胺树脂的步骤; 通过喷丝头纺出熔融树脂; 将纺丝产品拉入设置在喷丝头表面下方的冷却液浴槽,以产生无取向纱线; 然后将非取向纱线取向为2.5的拉伸比。 在不低于聚酰胺的Tg的温度为8.0以下且不高于其熔点,其中牵伸比为1.0〜3.0,冷却剂浴(T)的温度满足关系式:Tg-30
    • 2. 发明授权
    • Heat-aging-resistant polyamide resin composition and fiber comprising
the same
    • 耐热老化性聚酰胺树脂组合物和含有它们的纤维
    • US5929178A
    • 1999-07-27
    • US946442
    • 1997-10-07
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • C08K13/02C08K3/16C08K5/00C08L77/00C08L77/06D01F6/60C08L67/00
    • C08K3/16C08K5/005C08L77/00Y10T428/29Y10T428/2967Y10T428/2969
    • There are provided a heat-aging-resistant polyamide resin composition comprising (C) a polyamide containing 10 to 100% by weight of (A) a polyamide obtained by polymerizing a monomer containing 70 mole % or more of m-xylylenediamine as a diamine component and a monomer containing 70 mole % or more of adipic acid as a dicarboxylic acid component and 90 to 0% by weight of (B) other polyamide, (D) a copper compound in an amount of 0.001 to 0.1 part by weight per 100 parts by weight of the polyamide (C), (E) a halide of a Group 1 or Group 2 metal of the Periodic Table of the Elements, an ammonium halide, or an organohalide in an amount of 0.005 to 1 part by weight per 100 parts by weight of the polyamide (C), at least one selected from among (F) hindered phenols and (G) hindered amines with the amount of each of the hindered phenols (F) and the hindered amines (G) being 0.05 to 3 parts by weight per 100 parts by weight of the polyamide (C), and (H) an organophosphorus compound in an amount of 0.05 to 3 parts by weight per 100 parts by weight of the polyamide (C), and a high-Young's modulus heat-aging-resistant polyamide fiber comprising said polyamide resin composition and having a Young's modulus of 400 kgf/mm.sup.2 or more which has an excellent durability, such as a heat-aging-resistance under high-temperature conditions.
    • 提供了一种耐热老化聚酰胺树脂组合物,其包含(C)含有10〜100重量%的(A)聚酰胺的聚酰胺,所述聚酰胺是通过使含有70摩尔%以上的间苯二甲胺的单体作为二胺成分 和含有70摩尔%以上的己二酸作为二羧酸成分的单体和90〜0重量%的(B)其他聚酰胺的单体,(D)0.001〜0.1重量份的铜化合物,相对于100重量份 的聚酰胺(C),(E)元素周期表第1族或第2族金属的卤化物,卤化铵或有机卤化物,其量为每100份0.005至1份 (C)中的至少一种,受阻酚(F)和受阻胺(G)中的每一种的(F)受阻酚和(G)受阻胺中的至少一种为0.05〜3重量份 (C)的100重量份,和(H)一定量的有机磷化合物 相对于100重量份聚酰胺(C)为0.05〜3重量份,包含所述聚酰胺树脂组合物的杨氏模量耐热老化聚酰胺纤维的杨氏模量为400kgf / mm 2以上, 具有优异的耐久性,例如在高温条件下的耐热老化性。
    • 3. 发明授权
    • Oriented polyamide fiber and process for producing same
    • 定向聚酰胺纤维及其制造方法
    • US5906891A
    • 1999-05-25
    • US88835
    • 1998-06-02
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • Takatoshi ShidaMakoto TakahashiMasahiro Harada
    • D01F6/90D02G3/00B29C47/06
    • D01F6/90Y10T428/2913Y10T428/2969
    • An oriented polyamide fiber which comprises at least 20% by weight of a crystalline polyamide copolymer (A) produced by polymerizing at least one diamine monomer containing at least 70 mol % m-xylylenediamine and at least one dicarboxylic acid monomer containing at least 70 mol % adipic acid. The oriented polyamide fiber having a Young's modulus of at least 400 kgf/mm.sup.2, a loop strength of at least 4.5 gf/D, a knot tensile strength of at least 3.5 gf/D and a roundness of from 97 to 100%. A process for producing the oriented polyamide fiber which comprises melting a polyamide resin comprising the crystalline polyamide copolymer (A); spinning the molten resin through a spinneret; pulling the spun product into a coolant bath disposed beneath the face of the spinneret to produce non-oriented fiber to a draw ratio of 2.5 to 8.0 at a temperature not lower than the Tg of the polyamide and not higher than the melting point of the polyamide, wherein the draft ratio is 1.0 to 3.0, and the temperature of the coolant bath (T) satisfies the relational expression: Tg-30.ltoreq.T.ltoreq.Tg+10 (.degree.C.). The oriented polyamide fiber can be used in sporting goods and industrial materials such as strings for a racket, rubber reinforcing materials and filter cloth materials for paper making, by virtue of its high strength, modulus of elasticity and roundness.
    • 一种取向聚酰胺纤维,其包含至少20重量%的结晶聚酰胺共聚物(A),其通过聚合至少一种含有至少70mol%间苯二甲胺的二胺单体和至少一种含有至少70mol% 己二酸。 杨氏模量为400kgf / mm2以上的取向聚酰胺纤维,回弹强度为4.5gf / D,结强度为3.5gf / D,圆度为97〜100%。 一种制备定向聚酰胺纤维的方法,包括熔融包含结晶性聚酰胺共聚物(A)的聚酰胺树脂; 通过喷丝头纺出熔融树脂; 将纺丝产品拉入设置在喷丝头表面下方的冷却剂浴,以在不低于聚酰胺的Tg的温度下制成无取向纤维,拉伸比为2.5-8.0,不高于聚酰胺的熔点 其中,牵伸比为1.0〜3.0,冷却剂浴(T)的温度满足关系式:Tg-30≤T≤TG+ 10(℃)。 取向聚酰胺纤维由于其高强度,弹性模量和圆度而可用于运动用品和工业用材料,例如球拍用绳,橡胶增强材料和造纸用滤布材料。
    • 4. 发明授权
    • Multi-layer film
    • 多层胶片
    • US5955180A
    • 1999-09-21
    • US956911
    • 1997-10-23
    • Masahiro HaradaMakoto TakahashiKatsuya MaruyamaKatsuyuki Murai
    • Masahiro HaradaMakoto TakahashiKatsuya MaruyamaKatsuyuki Murai
    • B32B27/34
    • B32B27/34Y10S428/91Y10T428/24942Y10T428/2495Y10T428/24959Y10T428/31725Y10T428/31728Y10T428/31732Y10T428/31739Y10T428/31743Y10T428/3175
    • The invention relates to a multi-layer film comprising a layer (A) made of a polyamide (a), a layer (B) made of a mixed polyamide (b.sub.3) of a polyamide (b.sub.1) and an aliphatic polyamide (b.sub.2), a layer (C) made of an adhesive polyolefin (c.sub.1) or a mixed resin (c.sub.3) of an adhesive polyolefin (c.sub.1) and a polyolefin (c.sub.2), and a layer (D) made of a polyolefin (d), whereinthe layer constitution is such that the layers are arranged in order of the layer (A)/the layer (B)/the layer (C)/the layer (D), andthe layer (B) is made of a mixed polyamide (b.sub.3) made up of 60 to 95% by weight of a polyamide (b.sub.1) obtained from a diamine comprising 70 mol % or more of meta-xylylenediamine and a dicarboxyic acid comprising 70 mol % or more of an .alpha.,.omega.-aliphatic dicarboxylic acid having 6 to 12 carbon atoms and 40 to 5% by weight of an aliphatic polyamide (b.sub.2) having a semicrystallization time of 30 sec or less at 160.degree. C. and a solubility parameter (SP value) of 13.+-.1.5.
    • 本发明涉及一种多层膜,其包含由聚酰胺(a)制成的层(A),由聚酰胺(b1)和脂族聚酰胺(b2)的混合聚酰胺(b3)制成的层(B) 由粘合剂聚烯烃(c1)或粘合剂聚烯烃(c1)和聚烯烃(c2)的混合树脂(c3)和由聚烯烃(d)制成的层(D))制成的层(C),其中 层构成为层(A)/层(B)/层(C)/层(D)的顺序排列,层(B)由混合聚酰胺(b3) )由60至95重量%的由包含70摩尔%以上间苯二甲胺的二胺和包含70摩尔%以上的α,ω-脂族二羧酸的二羧酸得到的聚酰胺(b1) 6〜12个碳原子和40〜5重量%的在160℃下半结晶时间为30秒以下的脂肪族聚酰胺(b2),溶解度参数(SP值)为13 +/- 1.5。