发明公开
EP2980307A4 POLY(VINYL ALCOHOL)-BASED FIBERS HAVING EXCELLENT THERMAL AGING RESISTANCE, AND METHOD FOR PRODUCING SAME
有权
基本信息:
- 专利标题： POLY(VINYL ALCOHOL)-BASED FIBERS HAVING EXCELLENT THERMAL AGING RESISTANCE, AND METHOD FOR PRODUCING SAME
- 专利标题（中）：聚乙烯醇（PVA）具有优良的热稳定性的时间和方法及其制造基纤维
- 申请号：EP14774183 申请日：2014-03-06
- 公开(公告)号：EP2980307A4 公开(公告)日：2016-10-26
- 发明人： YAMAMOTO RYO , KOBAYASHI TOSHIAKI , HAYASHI HIDEO
- 申请人： KURARAY CO
- 专利权人： KURARAY CO
- 当前专利权人： KURARAY CO
- 优先权： JP2013071106 2013-03-29
- 主分类号： D06M11/26
- IPC分类号： D06M11/26 ; D01F6/14 ; D06M11/13 ; D06M11/155 ; D06M11/28 ; D06M11/80 ; D06M101/24
摘要：
Polyvinyl alcohol fibers that exhibit excellent heat aging resistance when used for a long time under high temperature conditions are provided. The polyvinyl alcohol fibers contain: an antioxidant composed of inorganic or organic water soluble salt of at least one metal selected from the group consisting of manganese, copper, iron, nickel, cobalt, and zinc; and a boron compound that acts as a chelating agent for the antioxidant, wherein the content of the antioxidant in the fiber is 0.05 % by mass or more, and a proportion (mass ratio in %) of the boron compound to the antioxidant is 0.5% or more.