....CHDE....FRGB..ITLI....SE......................R0327696EUROPEAN PATENT APPLICATIONA319900321EP88120129.719881202enenen29563/8719880210JP19900321199012198908161989334 4D 01F 6/14 AdeWasserlösliche Polyvinylalkoholfaser mit hoher Festigkeit und Verfahren zur Herstellung derselbenenHigh-tenacity water-soluble polyvinyl alcohol fiber and process for producing the samefrFibre d'alcool polyvinylique à haute ténacité et procédé pour sa fabricationTORAY INDUSTRIES, INC.00203532703602 EP W/Sa2-1, Nihonbashi Muromachi 2-chome Chuo-kuTokyoJPUeda, Fujio1415, Tsutsui Masaki-choIyo-gun Ehime-kenJPTanaka, Hiroyoshi79-3, Kamitakayanagi Masaki-choIyo-gun Ehime-kenJPHayashi, Masahiko232-220, ShimoagawaIyo-shi Ehime-kenJPWeber, Dieter, Dr.et al00012721Weber, Dieter, Dr., Seiffert, Klaus, Dipl.-Phys., Lieke, Winfried, Dr. Postfach 61 4565051 WiesbadenDECHDEFRGBITLISE19900321199012

A high-tenacity water-soluble polyvinyl alcohol fiber comprising a fiber composed of a polyvinyl alcohol polymer with a degree of polymerization of at least 1500 and a degree of saponification of 80 to 99 mol% and having a tensile strength of at least 10 g/d, an initial modulus of at least 100 g/d, and a water soluble temperature of 100° C or below, and a process of producing the fiber.