Thermoplastic polyurethanes with improved melt flow
    1.
    发明授权
    Thermoplastic polyurethanes with improved melt flow 有权
    具有改善熔体流动性的热塑性聚氨酯

    公开(公告)号:US06022939A

    公开(公告)日:2000-02-08

    申请号:US244381

    申请日:1999-02-04

    IPC分类号: C08G18/48 C08G18/65

    CPC分类号: C08G18/4854

    摘要: A thermoplastic polyurethane elastomer is disclosed obtained by reactingA) diisocyanates,B) polyhydroxy compounds and/or polyamines, withC) as chain extenders mixtures ofC1) benzene substituted with at least two hydroxyalkyl, hydroxyalkoxy, aminoalkyl and/or aminoalkoxy groups andC2) an alkanediol with 4 to 44 C atoms. The reaction is further characterized in that the molar ratio C1 to C2=60 to 40 to 95 to 5 and in that the equivalent ratio of NCO groups to the sum of the NCO-reactive groups is about 0.9 to 1.20.

    摘要翻译: 公开了一种热塑性聚氨酯弹性体,其通过使A)二异氰酸酯,B)多羟基化合物和/或多胺与C)作为扩链剂的C1)苯与至少两个羟烷基,羟烷氧基,氨基烷基和/或氨基烷氧基和C2 )具有4至44个C原子的链烷二醇。 该反应的特征还在于C1至C2的摩尔比= 60至40至95至5,并且NCO基团的当量比与NCO反应性基团之和为约0.9至1.20。

    Cycloaliphatic thermoplastic polyurethane elastomers
    2.
    发明授权
    Cycloaliphatic thermoplastic polyurethane elastomers 失效
    环脂族热塑性聚氨酯弹性体

    公开(公告)号:US5942593A

    公开(公告)日:1999-08-24

    申请号:US805840

    申请日:1997-03-03

    摘要: A process for the preparation of a polyurethane-urea elastomer having a mole ratio of NCO groups to all active hydrogen atoms in the range of 0.9 to 1.2 is disclosed. The process comprise reacting (A), (B) and (C.2) for form an NCO-containing prepolymer and then reacting said prepolymer with (C.1) and (D). Accordingly (A) is 5-isocyanato-1-(isocyanatomethyl)-1,1,3-trimethylcyclohexane or bis-(4-isocyanatocyclohexyl)-methane,(B) is polytetrahydrofuran or hexanediol polycarbonate and (C.2) is a chain extender. (C.1) is 5-amino-3-amino-methyl-1,3,3-trimethylcyclohexane or bis-(4-aminocyclohexyl)-methane and (D) is a molecular weight regulator. The elastomer thus produced is particularly suitable for the preparation of moldings, films, flexible tubing (for medical purposes) and catheters.

    摘要翻译: 公开了一种制备具有NCO基摩尔数与所有活性氢原子在0.9至1.2范围内的聚氨酯 - 脲弹性体的方法。 该方法包括使(A),(B)和(C.2)反应形成含NCO的预聚物,然后使所述预聚物与(C.1)和(D)反应。 因此(A)是5-异氰酸基-1-(异氰酸根合甲基)-1,1,3-三甲基环己烷或双 - (4-异氰酸根合环己基) - 甲烷,(B)是聚四氢呋喃或己二醇聚碳酸酯,(C.2) 延长剂 (C.1)是5-氨基-3-氨基 - 甲基-1,3,3-三甲基环己烷或双 - (4-氨基环己基) - 甲烷,(D)是分子量调节剂。 如此制备的弹性体特别适用于制备模制品,薄膜,柔性管(用于医疗用途)和导管。

    Thermoplastic comprising metal identification platelets
    6.
    发明授权
    Thermoplastic comprising metal identification platelets 有权
    热塑性塑料包括金属鉴定血小板

    公开(公告)号:US09334385B2

    公开(公告)日:2016-05-10

    申请号:US12677700

    申请日:2008-09-02

    摘要: The invention relates to a transparent thermoplastic material, containing 0.0001 to 2 wt. % of substantially flat metal identification platelets with a largest length elongation of less than 200 μm and a thickness of 2-10 μm, a round or n-angled shape where n≧4, wherein the metal identification platelets do not have any recesses or have recesses that lie substantially in the center of the metal identification platelet, do not come closer than 20 μm to the circumferential outer edge of the metal identification platelet, and do not account for more than 30% of the surface area of the metal identification platelet. The invention also relates to the production thereof and the use for producing films for personalization of a card layer composite and data carriers in card form, especially smart cards, magnetic strip cards, identification cards and the like.

    摘要翻译: 本发明涉及一种透明热塑性材料,其含有0.0001至2重量% 具有小于200μm最大长度伸长率和2-10μm厚度的基本平坦的金属识别血小板的%,n≥4的圆形或n角形状,其中金属识别血小板没有任何凹陷或具有 基本上位于金属识别片的中心的凹部不会比金属识别片的周向外缘稍微超过20μm,并且不超过金属识别片的表面积的30%以上。 本发明还涉及其制造以及用于制造卡层复合材料和卡片形式的数据载体,特别是智能卡,磁条卡,识别卡等的个性化的膜的用途。

    Polycarbonate for making extruded films that are virtually free of surface defects
    9.
    发明授权
    Polycarbonate for making extruded films that are virtually free of surface defects 有权
    用于制造实际上没有表面缺陷的挤出薄膜的聚碳酸酯

    公开(公告)号:US08084570B2

    公开(公告)日:2011-12-27

    申请号:US11977586

    申请日:2007-10-25

    IPC分类号: C08G64/00

    摘要: Linear polycarbonate resin virtually free of surface defects that impair the suitability of the resin for demanding optical application is disclosed. Also disclosed is a process for the manufacture of the resin. The surface defects included in the resin are in the form of transparent fluorescing particles, the particle count of which portion that are 15 and 250 μm in size, is up to 1.8 counts/g, said count being determined by exciting the residue remaining after filtering a solution of said polycarbonate in methylene chloride through a Teflon filter of 5 μm pore size at a wavelength of 400-440 nm, 25× overall magnification and illumination time of 40 millisec. The polycarbonate is suitable for making films of improved optical properties.

    摘要翻译: 公开了实质上没有表面缺陷的线性聚碳酸酯树脂,其损害了用于要求光学应用的树脂的适用性。 还公开了用于制造树脂的方法。 包含在树脂中的表面缺陷是透明荧光颗粒的形式,其尺寸为15和250μm的部分的颗粒数量达到1.8个计数/ g,所述计数通过激发过滤后剩余的残余物来确定 所述聚碳酸酯在二氯甲烷中的溶液通过孔径为5μm的Teflon过滤器,波长为400-440nm,总体放大倍数为25×,照射时间为40毫秒。 聚碳酸酯适用于制备改善光学性能的薄膜。