Substrate for information-recording media
    2.
    发明授权
    Substrate for information-recording media 失效
    信息记录媒体基础

    公开(公告)号:US5118548A

    公开(公告)日:1992-06-02

    申请号:US509582

    申请日:1990-04-16

    CPC classification number: C08F20/30 G11B7/253 Y10S428/913 Y10S430/146

    Abstract: The present invention relates to a substrate for information-recording media, which is formed of a polymer containing a specific acrylate-based monomer as an essential component. Since the acrylate-based monomer has a rigid skeleton similar to that of bisphenol A, the substrate for recording media, formed of the polymer of such a monomer, has high hardness and excellent heat resistance. Further, due to six fluorine atoms that the acrylate-based monomer contains, the substrate has advantages of low water absorptivity and easy die removability.

    Abstract translation: 本发明涉及用含有特定丙烯酸酯类单体作为主要成分的聚合物形成的信息记录介质用基板。 由于丙烯酸酯类单体具有类似于双酚A的刚性骨架,所以由这种单体的聚合物形成的用于记录介质的基材具有高硬度和优异的耐热性。 此外,由于丙烯酸酯类单体含有6个氟原子,所以基材具有低吸水性和易脱模性的优点。

    Method for producing laminate board containing uniformly distributed
filler particles
    4.
    发明授权
    Method for producing laminate board containing uniformly distributed filler particles 失效
    含有均匀分布的填料颗粒的层压板的制造方法

    公开(公告)号:US4661301A

    公开(公告)日:1987-04-28

    申请号:US765476

    申请日:1985-08-14

    Abstract: A process for continuously molding a plate for an electrical printed circuit board wherein a resin containing uniformly distributed hollow microspheres having a specific gravity different from that of the resin is extruded into a vertically disposed moving double belt press maintained at a temperature which allows the extruded plate to harden almost completely. The plate exists the vertically disposed press maintaining a flexibility sufficient to be passed around a roller into a horizonal position where subsequent processing steps may be applied, such as lamination of reinforcing fiber and coating with a conductive material.

    Abstract translation: 一种用于连续模制用于电气印刷电路板的板的方法,其中将具有不同于树脂的比重的均匀分布的中空微球的树脂挤出成垂直布置的移动双带压机,保持在允许挤出板 几乎完全硬化。 该板存在垂直设置的压力机,保持足够的柔性以使辊子绕过水平位置,其中可以应用后续的加工步骤,例如增强纤维的层压和导电材料的涂层。

    Manufacture of crimped polyamide filaments yarn
    5.
    发明授权
    Manufacture of crimped polyamide filaments yarn 失效
    卷曲聚酰胺长丝纱的制造

    公开(公告)号:US3975484A

    公开(公告)日:1976-08-17

    申请号:US552417

    申请日:1975-02-24

    CPC classification number: D02G1/20 D01D5/23 D01F6/60

    Abstract: A method for the manufacture of crimped polyamide filament yarns. Polyamide filaments having non-circular cross sections are melt-spun, allowed to cool, and treated with a substantially non-aqueous oiling agent. They are passed around a feed roll, are passed in contact with a heated body having a curved surface and thus subjected to one-sided heating and then to drawing, are passed around a heated draw roll, and then are passed through a steam jet.

    Abstract translation: 卷曲聚酰胺长丝纱线的制造方法。 将具有非圆形截面的聚酰胺长丝熔融纺丝,使其冷却,并用基本上非水性的上油剂处理。 将其通过进料辊,与具有弯曲表面的加热体接触,然后进行单面加热,然后进行拉伸,绕过加热的拉伸辊,然后通过蒸汽喷射。

    Polymer for optical products and process for preparation thereof
    7.
    发明授权
    Polymer for optical products and process for preparation thereof 失效
    光学产品用聚合物及其制备方法

    公开(公告)号:US5294666A

    公开(公告)日:1994-03-15

    申请号:US936302

    申请日:1992-08-28

    CPC classification number: C08G18/757 C08G18/3874 C08G18/3876 G02B1/04

    Abstract: A polymer used for optical products wherein the polymer comprises 2,5-dimethyl-1,4-dithiane skeletons represented by formula (1): ##STR1## and 1,3,5-trimethylcyclohexane skeletons represented by formula (2): ##STR2## and a part of or all of bonds between the 2,5-dimethyl-1,4-dithiane skeleton and the 1,3,5-trimethylcyclohexane skeleton are thiourethane bonds. The polymer exhibits 1.63 or more of refractive index, 35 or more of Abbe's number and 100.degree. C. or more of second-order transition point. The polymer is prepared by polyaddition of 2,5-dimercaptomethyl-1,4-dithiane and 1,3,5-triisocyanatomethylcyclohexane.

    Abstract translation: 用于光学产品的聚合物,其中所述聚合物包含由式(1)表示的2,5-二甲基-1,4-二噻烷骨架:(*化学结构*)(1)和由式(1)表示的1,3,5-三甲基环己烷骨架 (2):(*化学结构*)(2)和2,5-二甲基-1,4-二噻吩骨架与1,3,5-三甲基环己烷骨架之间的一部分或全部键是硫代氨基甲酸酯键。 聚合物的折射率为1.63以上,阿贝数为35以上,二次转变点为100℃以上。 聚合物是通过加入2,5-二巯基甲基-1,4-二噻烷和1,3,5-三异氰酸甲酯基环己烷制备的。

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