公开(公告)号：US06458467B1

公开(公告)日：2002-10-01

申请号：US09489031

申请日：2000-01-21

申请人： Naoki Mizuno ,  Mikio Matsuoka ,  Tomonori Yoshinaga ,  Tadaaki Yoshinaka ,  Shinichi Tsukada

发明人： Naoki Mizuno ,  Mikio Matsuoka ,  Tomonori Yoshinaga ,  Tadaaki Yoshinaka ,  Shinichi Tsukada

IPC分类号： B32B2736

CPC分类号： G02B5/3083 ,  C09J7/22 ,  C09J7/255 ,  C09J7/38 ,  C09J2467/00 ,  C09J2475/00 ,  Y10T428/24355 ,  Y10T428/24372 ,  Y10T428/2896 ,  Y10T428/31565 ,  Y10T428/31786

摘要： An optical-use adhesive film comprises a base film of the optical-use adhesive film is a biaxially oriented polyester film having a thickness equal to or more than 50 &mgr;m, and an adhesive polymer layer laminated on at least one surface of the base film. Refractive indexes of the base film in longitudinal and transverse directions are both in the range of from 1.55 to 1.70 and refractive indexes of the adhesive layer and the base film satisfies the following formula (1): (Nx−Nc)2+(Ny−Nc)2≦0.0300  (1), wherein Nx and Ny respectively indicate refractive indexes in longitudinal and transverse directions of a base film and Nc is a refractive index of an adhesive layer.

摘要翻译： 光学用粘合膜包括光学用粘合膜的基膜是厚度等于或大于50μm的双轴取向聚酯膜和层压在基膜的至少一个表面上的粘合聚合物层。 基膜在纵向和横向上的折射率均在1.55至1.70的范围内，并且粘合剂层和基膜的折射率满足下式（1）：其中Nx和Ny分别表示纵向的折射率 基膜的横向，Nc为粘合剂层的折射率。

公开(公告)号：US5707719A

公开(公告)日：1998-01-13

申请号：US654583

申请日：1996-05-29

申请人： Tomonori Yoshinaga ,  Naonobu Oda ,  Tadashi Okudaira

发明人： Tomonori Yoshinaga ,  Naonobu Oda ,  Tadashi Okudaira

IPC分类号： B29C55/14 ,  B29D7/01 ,  B32B3/26 ,  B32B7/12

CPC分类号： B29C55/14 ,  B29D7/01 ,  B29K2025/00 ,  Y10S428/91 ,  Y10T428/268 ,  Y10T428/269

摘要： An oriented polystyrene film including a polystyrene polymer having a syndiotactic configuration, the film having a thickness of 25 .mu.m or more, and a rectangular sample of the film having a value C expressed by equation (I) of 0.007 or less: ##EQU1## wherein A.sub.max is obtained by designating four squares respectively in four apices of the rectangular sample, each square having sides of 100 mm in length, and setting an orientation direction of molecules of a first square to 0.degree., A.sub.max being an absolute value of a maximum angle among angles defined by the orientation direction of molecules of the first square and an orientation direction of molecules of each of the other three squares, R is expressed by equation (II) but is defined as 1 when exceeding 1: R=D/1000 (II), and D is a distance (mm) between a center of gravity of the first square and a center of gravity of the square having the orientation direction which defines A.sub.max with the first square, and HS.sub.max is a size change ratio of a square sample which is cut from the rectangular sample and dry-heated at a temperature of 150.degree. C. for 30 minutes, the square sample being designated in an apex of the rectangular sample and having sides of 100 mm in length.

摘要翻译： 包含具有间同立构构型的聚苯乙烯聚合物的膜的取向聚苯乙烯膜，厚度为25μm以上的膜和由式（I）表示的值C的膜的矩形样品为0.007以下：＆lt; IMAGE＆gt; （I）其中通过在矩形样品的四个顶点中分别指定四个正方形来获得Amax，每个正方形具有100mm长的边，并将第一个正方形的分子的取向方向设定为0°，Amax为绝对值 在由第一正方形的分子的取向方向和其他三个正方形中的每一个的分子的取向方向限定的角度之间的最大角度R由等式（II）表示，但是当超过1时被定义为1：R = D / 1000（II），D是第一正方形的重心与具有定义方向的方位的重心之间的距离（mm），其定义为具有第一平方的Amax，HSmax是尺寸变化 慧慧 从矩形样品切割并在150℃温度下干热30分钟的正方形样品，方形样品指定在矩形样品的顶点中，长度为100mm的边。