公开(公告)号：US5354595A

公开(公告)日：1994-10-11

申请号：US903584

申请日：1992-06-25

申请人： Eiji Yamamoto ,  Tsuneo Tamura ,  Katsuyuki Touma ,  Minoru Kishida ,  Yoshiaki Kozuka ,  Hiroyuki Matsuda ,  Hayami Ohnishi ,  Akira Menjyu ,  Shouji Nishimoto

发明人： Eiji Yamamoto ,  Tsuneo Tamura ,  Katsuyuki Touma ,  Minoru Kishida ,  Yoshiaki Kozuka ,  Hiroyuki Matsuda ,  Hayami Ohnishi ,  Akira Menjyu ,  Shouji Nishimoto

IPC分类号： B29C55/02 ,  B29K67/00 ,  B29K77/00 ,  B29L7/00 ,  B32B27/36 ,  C08J5/18 ,  C08K3/36 ,  C08L67/00 ,  C08L67/02 ,  B32B7/10

CPC分类号： C08J5/18 ,  B32B27/36 ,  C08K3/36 ,  C08L67/02 ,  C08J2367/02 ,  Y10T428/24405 ,  Y10T428/259 ,  Y10T428/26 ,  Y10T428/268 ,  Y10T428/269 ,  Y10T428/31721 ,  Y10T428/31736 ,  Y10T428/3175 ,  Y10T428/31794 ,  Y10T428/31797

摘要： A surface-roughened film and methods for fabricating same. The film has good transparency/exceptional clarity and high lubricity so that it is useful for a photoengraving material, label, packaging film, magnetic recording film, or clear film. The film has a composition including thermoplastic polyester resin (a) and a thermoplastic resin (b), such as an amorphous nylon, having glass transition temperature preferably 10.degree. C. higher than that of the thermoplastic polyester resin (a) and a critical surface tension more than 0.1 dyne/cm different from that of the thermoplastic polyester resin (a). Resin (b) further has a melt viscosity, at a temperature of 280.degree. C. and shear rate of 10.sup.2 sec.sup.-1, in the range of 500 to 50,000 poise. One or more particulate inert inorganic compound may be added and the film may be laminated to layers of other polymers with the film of the foregoing composition on at least one surface thereof. On the film surface, microprotuberances cored with the thermoplastic resin (b) are formed.In addition, there are also provided methods for fabricating the surface-roughened film including drawing the film in at least one direction by a factor of at least one and one-half at a temperature between Tg of (a) and Tg of (b).

摘要翻译： 表面粗糙化膜及其制造方法。 该胶片具有良好的透明度/卓越的清晰度和高润滑性，因此它可用于照相印刷材料，标签，包装膜，磁记录膜或透明膜。 该薄膜具有比热塑性聚酯树脂（a）高的热塑性聚酯树脂（a）和热塑性树脂（b），如无定形尼龙的组合物，玻璃化转变温度比热塑性聚酯树脂（a）的玻璃化转变温度高10℃， 张力比热塑性聚酯树脂（a）的张力大于0.1达因/厘米。 树脂（b）在280℃的温度和102秒-1的剪切速率下进一步具有在500至50,000泊的范围内的熔体粘度。 可以加入一种或多种颗粒状惰性无机化合物，并将该膜层压到具有上述组成的膜的其它聚合物层的至少一个表面上。 在薄膜表面上形成与热塑性树脂（b）一起堆积的微型保护层。 此外，还提供了用于制造表面粗糙化膜的方法，包括在（a）的Tg和（b）的Tg之间的温度下将膜在至少一个方向上拉伸至少一个2.5倍的因子， 。