Aliphatic, low-emission thermoplastic polyurethane molding materials suitable for sintering
    2.
    发明授权
    Aliphatic, low-emission thermoplastic polyurethane molding materials suitable for sintering 失效
    脂肪,低排放热塑性聚氨酯成型材料适用于烧结

    公开(公告)号:US06420510B1

    公开(公告)日:2002-07-16

    申请号:US09581771

    申请日:2000-06-16

    IPC分类号: C08G1842

    摘要: Polyurethane moulding compositions which can be melt processed in the form of sintering powders suitable for the preparation of grained sintered films and which are prepared exclusively from linear aliphatic components are described. The polyol component is composed of 30 to 80 parts by weight of an aliphatic polycarbonate diol with an average molecular weight {overscore (M)}n of 1000 to 2200 and 70 to 20 parts by weight of a polybutane diol adipate and/or a polycaprolactone diol with an average molecular weight {overscore (M)}n of 1000 to 2400. Moreover, the mixture contains 1,6-hexamethylene diisocyanate in an equivalence ratio of 2.3:1.0 to 6.2:1.0, based on the polyol mixture and butane-1,4-diol as chain extender, the equivalence ratio of the butane-1,4-diol based on the poly mixture being 1.3:1.0 to 5.2:1.0.

    摘要翻译: 描述了可以熔融加工形式的聚氨酯模塑组合物,其以适于制备颗粒烧结薄膜的烧结粉末形式,并且仅由线性脂族组分制备。 多元醇组分由30至80重量份的平均分子量(超核(M)} n为1000至2200的脂族聚碳酸酯二醇和70至20重量份的己二酸聚丁二醇酯和/或聚己内酯 二醇,其平均分子量(超芯(M))n为1000〜2400。此外,基于多元醇混合物和丁烷 - 二异氰酸酯,混合物含有当量比为2.3:1.0至6.2:1.0的1,6-六亚甲基二异氰酸酯, 作为扩链剂的1,4-二醇,基于聚合物的丁烷-1,4-二醇的当量比为1.3:1.0至5.2:1.0。

    Aliphatic, sinterable, thermoplastic polyurethane molding compositions
    3.
    发明授权
    Aliphatic, sinterable, thermoplastic polyurethane molding compositions 失效
    脂肪族,可烧结,热塑性聚氨酯模塑组合物

    公开(公告)号:US06410638B1

    公开(公告)日:2002-06-25

    申请号:US09558910

    申请日:2000-04-26

    IPC分类号: C08J8300

    摘要: A light-stable, sinterable particulate thermoplastic molding composition is described. The thermoplastic compositions of the present invention consist essentially of: (i) a resinous blend of, (a) thermoplastic polyurethane, and (b) a member selected from at least one of a number of recited copolymers, e.g., a styrene-acrylonitrile copolymer; (ii) a UV stabilizer; and (iii) an antioxidant. The thermoplastic polyurethane (a) is prepared from an aliphatic or cycloaliphatic diisocyanate. The molding compositions are suitable for the preparation of textured sintered films, e.g., by the powder-slush process, having improved tactile properties that, for example, may be used in the fabrication of vehicle interior trim components and vehicle air bags.

    摘要翻译: 描述了一种光稳定的,可烧结的颗粒状热塑性模塑组合物。 本发明的热塑性组合物基本上由以下组成:(i)(a)热塑性聚氨酯和(b)选自多种所述共聚物中的至少一种的成员的树脂共混物,例如苯乙烯 - 丙烯腈共聚物 ; (ii)紫外线稳定剂; 和(iii)抗氧化剂。 热塑性聚氨酯(a)由脂族或脂环族二异氰酸酯制备。 模制组合物适用于制备织构化的烧结薄膜,例如通过粉末淤浆工艺,具有改进的触觉性能,例如可用于制造车辆内饰件和车辆气囊。

    Mouldings of thermoplastic polyurethanes exhibiting reduced fogging
    4.
    发明授权
    Mouldings of thermoplastic polyurethanes exhibiting reduced fogging 有权
    表现出减少雾化的热塑性聚氨酯的成型品

    公开(公告)号:US06559267B2

    公开(公告)日:2003-05-06

    申请号:US09847715

    申请日:2001-05-02

    IPC分类号: C08G1834

    CPC分类号: C08G18/664

    摘要: A moulded article comprising thermoplastic polyurethane (TPU) that exhibits reduced fogging is disclosed. Characterized in having condensate value of

    摘要翻译: 公开了一种包含具有减少雾化的热塑性聚氨酯(TPU)的模塑制品。 根据DIN 75201B的雾化试验,凝聚值为<2mg / 10g的TPU的特征在于,TPU是将有机二异氰酸酯与B)聚酯多元醇反应的产物,B)聚酯多元醇含有小于0.2%的1:1 二羧酸和二醇的环酯,和C)扩链剂。模塑制品特别适用于汽车领域。

    Aliphatic thermoplastic polyurethanes, a process for producing them and the use thereof
    6.
    发明授权
    Aliphatic thermoplastic polyurethanes, a process for producing them and the use thereof 有权
    脂肪族热塑性聚氨酯,其制造方法及其用途

    公开(公告)号:US06559266B2

    公开(公告)日:2003-05-06

    申请号:US09447025

    申请日:1999-11-22

    IPC分类号: C08G1842

    摘要: A molding composition comprising thermoplastic polyurethane is disclosed. The polyurethane is characterized in having ultimate tensile strength (UTS) and elongation at break (EAB) values after hot storage which are, each, at least 60% of the corresponding value before hot storage, glass transition temperature equal to or lower than −50° C., UTS and EAB values after hydrolytic storage which are, each, at least 80% of the corresponding value before hydrolytic storage, and Shore A hardness of 70 to 95. The polyurethane is a product of a reaction comprising an aliphatic diisocyanate, a mixture of polyols and a chain extender and contains a UV stabilizer, an antioxidant and an optional anti-hydrolysis agent.

    摘要翻译: 公开了一种包含热塑性聚氨酯的模制组合物。 聚氨酯的特征在于在热存储之后具有极限拉伸强度(UTS)和断裂伸长率(EAB)值,它们各自在热存储之前的相应值的至少60%,玻璃化转变温度等于或低于-50 水解储存后的UTS和EAB值各自为水解储存前相应值的至少80%,肖氏A硬度为70至95.聚氨酯是包含脂族二异氰酸酯, 多元醇和扩链剂的混合物,并含有UV稳定剂,抗氧化剂和任选的抗水解剂。

    Aliphatic thermoplastic polyurethanes and use thereof
    8.
    发明授权
    Aliphatic thermoplastic polyurethanes and use thereof 失效
    脂肪族热塑性聚氨酯及其用途

    公开(公告)号:US06706807B2

    公开(公告)日:2004-03-16

    申请号:US10241246

    申请日:2002-09-10

    IPC分类号: C08J300

    CPC分类号: C08G18/6674 C08G18/4854

    摘要: A thermoplastic moulding composition that contains an aliphatic thermoplastic polyurethane (TPU) resin is disclosed. The TPU is the product of a reaction of A) a diisocyanate reactant that contains predominantly hexamethylene diisocyanate, and B) a polyol reactant that contains polytetramethylene glycol and C) a chain extending reactant that contains primarily 1,6-hexanediol. The TPU that is further characterized in the equivalence ratio of A to B and NCO index exhibits improved properties.

    摘要翻译: 公开了含有脂族热塑性聚氨酯(TPU)树脂的热塑性模塑组合物。 TPU是主要包含六亚甲基二异氰酸酯的A)二异氰酸酯反应物和B)含有聚四亚甲基二醇的多元醇反应物和C)主要含有1,6-己二醇的扩链反应物的反应的产物。 进一步以A与B和NCO指数的当量比表征的TPU表现出改善的性能。

    Process for preparing soft, elastic polyurethane
    10.
    发明授权
    Process for preparing soft, elastic polyurethane 有权
    制备柔软,弹性聚氨酯的方法

    公开(公告)号:US06527995B1

    公开(公告)日:2003-03-04

    申请号:US09610832

    申请日:2000-07-06

    IPC分类号: D04H154

    摘要: A process for producing a thermoplastic polyurethane film by means of sintering a particulate thermoplastic polyurethane in a heated mold, is described. The thermoplastic polyurethane has: (i) a melt index of 20 to 100, measured at 190° C. and under an applied force of 21.2 N; (ii) a relative solution viscosity of 1.15 to 1.45, the relative solution viscosity being determined by, measuring the viscosity (a) of a solution of 0.4 grams of the thermoplastic polyurethane in 99.7 grams N-methyl-2-pyrrolidone containing 0.1% dibutylamine at 25° C., measuring the viscosity (b) of N-methyl-2-pyrrolidone containing 0.1% dibutylamine at 25° C., and dividing viscosity (a) by viscosity (b); and (iii) a Shore hardness of 80 to 98.

    摘要翻译: 描述了通过在加热的模具中烧结颗粒状热塑性聚氨酯来制造热塑性聚氨酯膜的方法。 热塑性聚氨酯具有:(i)在190℃和21.2N的施加力下测量的20至100的熔体指数; (ii)相对溶液粘度为1.15至1.45,相对溶液粘度通过测量在含有0.1%二丁胺的99.7克N-甲基-2-吡咯烷酮中的0.4克热塑性聚氨酯溶液的粘度(a) 在25℃下测量在25℃下含有0.1%二丁胺的N-甲基-2-吡咯烷酮的粘度(b),并将粘度(a)除以粘度(b)。 和(iii)肖氏硬度为80-98。