Process for continuous production of polyolefin material
    91.
    发明公开
    Process for continuous production of polyolefin material 失效
    Verfahren zur kontinuierlichen Herstellung von聚烯烃材料。

    公开(公告)号:EP0452947A2

    公开(公告)日:1991-10-23

    申请号:EP91106270.1

    申请日:1991-04-19

    IPC分类号: B29C55/18 B29C43/22

    摘要: According to the present invention, a polyolefin sheet, film or fiber having a high strength and a high modulus can be continuously produced by:
       feeding an ultra-high-molecular-weight polyolefin powder between a pair of upper and lower endless belts opposed to each other (5,6),
       conveying the polyolefin powder between the endless belts under compression to compression-mold the polyolefin powder at a temperature lower than the melting point of the polyolefin powder, the compression being continuously and smoothly effected, via the endless belts, by a pressing means comprising two sets of rollers (8) which are arranged at the back sides of the endless belts so that each one roller of the two roller sets faces each other and each of which rollers is rotatably supported at the shaft ends by a frame, and then
       rolling and stretching the resultant compression-molded polyolefin in this order.

    摘要翻译: 根据本发明,可以通过以下方法连续地制造具有高强度和高模量的聚烯烃片材,膜或纤维:将超高分子量聚烯烃粉末在与每个相对的一对上下环形带之间进料 另外,在压缩环境带之间输送聚烯烃粉末,以在低于聚烯烃粉末的熔点的温度下对聚烯烃粉末进行压缩模塑,通过环形带连续平稳地实现压缩,压制装置包括 布置在环形带的后侧的两组辊,使得两个辊组的每个辊彼此面对,并且每个辊在轴端通过框架可旋转地支撑,然后滚动和拉伸 得到的压塑聚烯烃。

    Process for preparing printed circuit board having through-hole
    97.
    发明公开
    Process for preparing printed circuit board having through-hole 失效
    Verfahren zur Herstellung einer gedruckten Schaltung mit Loch。

    公开(公告)号:EP0441308A2

    公开(公告)日:1991-08-14

    申请号:EP91101500.6

    申请日:1991-02-05

    IPC分类号: G03F7/038 H05K3/42

    摘要: A process for preparing a through-hole printed circuit board having at least one through-hole, involves the steps of: (a) applying an acid-soluble cationic electrodeposit photoresist by electrodeposition all over on a surface of a board covered by an electrically conductive metal layer including the through-hole, while setting the board as a cathode; (b) heating the board passed through the step (a) to a tempeature of 50°C to 120°C; (c) exposing the acid-soluble cationic electrodeposit photoresist to light through a photo-mask having a pattern complementary to a pattern of a circuit to be formed, thereby to cure the photoresist, and then developing with a developer to remove only an uncured portion of the photoresist; (d) applying an alkali-soluble anionic electrodeposit etching resist by electrodeposition on a surface of a portion of the electrically conductive metal layer uncoated with the cured photoresist, while setting the board passed through the step (c) as an anode; (e) heating the board passed through the step (d) to a tempeature of 50 to 120°C; (f) removing a coating of the cured acid-soluble cationic electrodeposit photoresist with an aqueous acid solution; (g) etching a portion of the electrically conductive metal layer exposed by the step (f); and (h) removing the remaining alkali-soluble anionic electrodeposit etching resist with an aqueous alkali solution.

    摘要翻译: 一种用于制备具有至少一个通孔的通孔印刷电路板的方法,包括以下步骤:(a)通过电沉积在由导电覆盖的板的表面上电沉积的酸溶性阳离子电沉积光致抗蚀剂 包括通孔的金属层,同时将板设置为阴极; (b)将通过步骤(a)的板加热至50℃至120℃的温度; (c)将酸溶性阳离子电沉积光致抗蚀剂曝光通过具有与要形成的电路图案互补的图案的光掩模,从而固化光致抗蚀剂,然后用显影剂显影以除去未固化部分 的光刻胶; (d)通过电沉积在未固化的光致抗蚀剂的未导电的导电金属层的一部分的表面上施加碱溶性阴离子电沉积抗蚀剂,同时使板通过步骤(c)作为阳极; (e)将通过步骤(d)的板加热至50至120℃的温度; (f)用酸水溶液去除固化的酸溶性阳离子电沉积光致抗蚀剂的涂层; (g)蚀刻由步骤(f)暴露的导电金属层的一部分; 和(h)用碱水溶液除去剩余的碱溶性阴离子电沉积抗蚀剂。

    Lubricant compositions
    98.
    发明公开
    Lubricant compositions 失效
    润滑剂组合物

    公开(公告)号:EP0440391A1

    公开(公告)日:1991-08-07

    申请号:EP91300618.5

    申请日:1991-01-28

    IPC分类号: C10M143/12

    摘要: Lubricant compositions of high lubrication and light coloration characteristics are made up essentially of a selected mineral or synthetic oil and a selected polybutadiene. The polymeric component contains greater than 20% by mol of vinyl bonds in terms of its monomeric unit and has crosslinked more than 10% of the vinyl bond content.

    摘要翻译: 具有高润滑性和光着色特性的润滑剂组合物基本上由选定的矿物油或合成油和选定的聚丁二烯构成。 聚合物组分按其单体单元计含有大于20摩尔%的乙烯基键,并且交联了超过10%的乙烯基键含量。

    Method of preparing polyvinyl alcohol gel and MRI phantom
    100.
    发明公开
    Method of preparing polyvinyl alcohol gel and MRI phantom 失效
    制备聚乙烯醇凝胶和MRI胶体的方法

    公开(公告)号:EP0376241A3

    公开(公告)日:1991-06-12

    申请号:EP89123932.9

    申请日:1989-12-27

    IPC分类号: C08J3/00 G01R33/58 C08L29/04

    摘要: A method of preparing a polyvinyl alcohol hydrogel contains the steps of charging an aqueous solution of a polyvinyl alcohol having a degree of hydrolysis of not less than 95 mol% and an average polymerization degree of not less than 500 into a container, the aqueous solution containing the polyvinyl alcohol in a concentration of not less than 5 wt.%, cooling the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 9°C to - (minus) 3°C, subjecting the aqueous solution of the polyvinyl alcohol to physical stimulation, and then maintaining the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 5°C to + (plus) 5°C. The polyvinyl alcohol hydrogel may be contained in a plastic container. An MRI phanton is composed of the plastic container containing such polyvinyl alcohol hydrogel.