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1.
公开(公告)号:US20140377555A1
公开(公告)日:2014-12-25
申请号:US14372507
申请日:2013-02-21
申请人: Kureha Corporation
发明人: Kotaku Saigusa
CPC分类号: D01F8/14 , B29C48/0022 , B29C48/022 , B29K2067/043 , B29K2067/046 , C09K8/035 , C09K8/516 , C09K2208/08 , D01F8/10 , Y10T428/2907 , Y10T428/2929 , Y10T428/2931
摘要: A water-disintegrable composite fiber comprising: a phase containing a polyglycolic acid resin; and a phase containing another resin having a mass loss of 25% or greater after immersion for 7 days in 80° C. pure water and having a glass transition temperature Tg of 25° C. or higher; the two phases extending continuously in the lengthwise direction; and the fiber having a side surface in which a region formed from the phase containing the polyglycolic acid resin is 50% or less in terms of area ratio, and a cross section in which a region formed from the phase containing the polyglycolic acid resin is 50% or greater in terms of area ratio.
摘要翻译: 一种水崩解复合纤维,包括:含有聚乙醇酸树脂的相; 以及在80℃纯水中浸渍7天后具有25℃以上的玻璃化转变温度Tg为25℃以上的质量损失为25%以上的另一种树脂的相。 两相沿长度方向连续延伸; 并且所述纤维具有侧面,其中由含有所述聚乙醇酸树脂的相形成的区域的面积的面积比为50%以下,从由所述聚乙醇酸树脂的相形成的区域为50的截面 %以上的面积比。
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2.
公开(公告)号:US20150247021A1
公开(公告)日:2015-09-03
申请号:US14432840
申请日:2013-10-09
申请人: KUREHA CORPORATION
发明人: Kotaku Saigusa , Satoru Suzuki
CPC分类号: C08K3/36 , C08J3/203 , C08J2367/04 , C08K3/34 , C08L67/04
摘要: A polyglycolic acid resin (PGA) composition which can be used as a packaging material or a material for a drilling downhole tool (member), the composition containing from 30 to 90 mass % of a PGA and from 70 to 10 mass % of an inorganic filler, wherein the percentage of mass loss of the PGA after immersion in water for 3 hours at a temperature of 120° C. is at least 20% and preferably at least 25%, and the deflection temperature under load is 120° C. or higher; and a method for producing a PGA composition, the method including a step of melt-kneading using an extruder.
摘要翻译: 可用作包装材料的聚乙醇酸树脂(PGA)组合物或用于钻井井下工具(构件)的材料,该组合物含有30〜90质量%的PGA和70〜10质量%的无机 填料,其中在120℃的温度下浸渍在水中3小时后的PGA的质量损失百分比为至少20%,优选至少25%,负载下的挠曲温度为120℃,或 更高; 以及PGA组合物的制造方法,该方法包括使用挤出机进行熔融混炼的工序。
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