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    Polylactic acid film
    5.
    发明授权
    Polylactic acid film 失效
    聚乳酸薄膜

    公开(公告)号：US08748543B2

    公开(公告)日：2014-06-10

    申请号：US13119671

    申请日：2009-09-29

    申请人： Shigeyoshi Masuda ,  Kohei Endo ,  Kinji Hasegawa

    发明人： Shigeyoshi Masuda ,  Kohei Endo ,  Kinji Hasegawa

    IPC分类号： C08G63/91

    CPC分类号： C08J5/18 ,  C08J2367/04 ,  C08L67/04 ,  C08L2205/02 ,  G02F1/13363 ,  C08L2666/18

    摘要： The polylactic acid film is obtained by melt extruding polylactic acid (A) prepared by melt kneading together polylactic acid (B) which comprises an L-lactic acid unit as the main ingredient and polylactic acid (C) which comprises a D-lactic acid unit as the main ingredient in a specific weight ratio, wherein the polylactic acid film has: (a) a stereocomplex crystal rate (S) defined by the following equation (i) of 90% or more: S={(ΔHmsc/(ΔHmsc+ΔHmh)}×100  (i) (in the above equation, ΔHmh is the melting enthalpy of a low-melting point crystal melting peak at a temperature lower than 190° C. obtained by differential scanning calorimeter (DSC) measurement and ΔHmsc is the melting enthalpy of a high-melting point crystal melting peak at a temperature of 190° C. or higher obtained by DSC measurement), (b) a haze of 10% or less, and (c) a haze change of 5% or less after it is heated at 140° C. for 10 minutes.

    摘要翻译： 通过熔融挤出通过熔融捏合聚乳酸（A）得到的聚乳酸薄膜，其中聚乳酸（A）是以包含L-乳酸单元为主要成分的聚乳酸（B）和包含D-乳酸单元的聚乳酸（C） 作为主成分，其中聚乳酸膜具有：（a）由下式（i）定义的立体络合物结晶速率（S）为90％以上：S = {（＆Dgr; Hmsc /（ ＆Dgr; Hmsc +＆Dgr; Hmh）}×100（i）（在上式中，＆Dgr; Hmh是通过差示扫描量热计获得的低于190℃的低熔点晶体熔融峰的熔融焓 （DSC）测定和＆Dgr Hmsc是通过DSC测定得到的温度为190℃以上的高熔点结晶熔融峰的熔融焓），（b）10％以下的雾度和（ c）在140℃加热10分钟后，雾度变化为5％以下。

    POLYLACTIC ACID FILM
    6.
    发明申请
    POLYLACTIC ACID FILM 失效
    聚酰胺薄膜

    公开(公告)号：US20110224342A1

    公开(公告)日：2011-09-15

    申请号：US13119671

    申请日：2009-09-29

    申请人： Shigeyoshi Masuda ,  Kohei Endo ,  Kinji Hasegawa

    发明人： Shigeyoshi Masuda ,  Kohei Endo ,  Kinji Hasegawa

    IPC分类号： C08L67/04 ,  C08K5/521 ,  B29C55/12

    CPC分类号： C08J5/18 ,  C08J2367/04 ,  C08L67/04 ,  C08L2205/02 ,  G02F1/13363 ,  C08L2666/18

    摘要： The polylactic acid film is obtained by melt extruding polylactic acid (A) prepared by melt kneading together polylactic acid (B) which comprises an L-lactic acid unit as the main ingredient and polylactic acid (C) which comprises a D-lactic acid unit as the main ingredient in a specific weight ratio, wherein the polylactic acid film has: (a) a stereocomplex crystal rate (S) defined by the following equation (i) of 90% or more: S={(ΔHmsc/(ΔHmsc+ΔHmh)}×100  (i) (in the above equation, ΔHmh is the melting enthalpy of a low-melting point crystal melting peak at a temperature lower than 190° C. obtained by differential scanning calorimeter (DSC) measurement and ΔHmsc is the melting enthalpy of a high-melting point crystal melting peak at a temperature of 190° C. or higher obtained by DSC measurement), (b) a haze of 10% or less, and (c) a haze change of 5% or less after it is heated at 140° C. for 10 minutes.

    摘要翻译： 通过熔融挤出通过熔融捏合聚乳酸（A）而得到的聚乳酸薄膜，该聚乳酸（A）通过以包含L-乳酸单元为主要成分的聚乳酸（B）和包含D-乳酸单元的聚乳酸 作为主要成分，其中聚乳酸膜具有：（a）由下式（i）定义的立体络合物结晶速率（S）为90％以上：S = {（＆Dgr; Hmsc /（ ＆Dgr; Hmsc +＆Dgr; Hmh）}×100（i）（在上式中，＆Dgr; Hmh是通过差示扫描量热计获得的低于190℃的低熔点晶体熔融峰的熔融焓 （DSC）测定和＆Dgr Hmsc是通过DSC测定得到的温度为190℃以上的高熔点结晶熔融峰的熔融焓），（b）10％以下的雾度和（ c）在140℃加热10分钟后，雾度变化为5％以下。

    Biaxially oriented laminated polyester film
    8.
    发明授权
    Biaxially oriented laminated polyester film 失效
    双轴取向叠层聚酯薄膜

    公开(公告)号：US5656356A

    公开(公告)日：1997-08-12

    申请号：US370493

    申请日：1995-01-09

    申请人： Shigeyoshi Masuda ,  Yoshimichi Hase ,  Masami Etchu

    发明人： Shigeyoshi Masuda ,  Yoshimichi Hase ,  Masami Etchu

    IPC分类号： B32B27/36 ,  C08J5/18 ,  G11B5/73 ,  G11B5/738 ,  B32B5/16 ,  B32B27/18

    CPC分类号： G11B5/7315 ,  B32B27/36 ,  C08J5/18 ,  G11B5/738 ,  B29K2995/0072 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/24967 ,  Y10T428/25 ,  Y10T428/265 ,  Y10T428/31786

    摘要： A biaxially oriented laminated polyester film comprises a polyester substrate layer (A) and a polyester surface layer (B) containing inert particles wherein the polyester surface layer (B) has a thickness of 0.2 to 3 .mu.m with the thickness of the polyester surface layer (B) varying along the film width direction so that the surface layer (B) is thicker at the edges of the film and thinner at the center of the film. The thickness of the surface layer (B) also satisfies specified relationships based on surface layer thickness, birefringence, and orientation angle values at two different points along the film width direction in order to obtain a film whose surface layer (B) has a uniform surface roughness in the film width direction wherein the polyester surface layer (B) has a surface roughness Ra of 3 to 40 nm and a surface roughness Ra fluctuation ratio of 5% or less when measured along a distance of 500 mm in the film width direction. The laminated film can be slit and easily wound into pancake rolls.

    摘要翻译： 双轴取向叠层聚酯薄膜包括聚酯基材层（A）和含有惰性颗粒的聚酯表面层（B），其中聚酯表面层（B）的厚度为0.2-3μm，聚酯表面层 （B）沿着膜宽度方向变化，使得表面层（B）在膜的边缘更厚并且在膜的中心更薄。 表面层（B）的厚度也根据表面层厚度，双折射率和沿着膜宽度方向的两个不同点的取向角度值满足规定的关系，以获得其表面层（B）具有均匀表面的膜 当沿着膜宽度方向上的500mm的距离测量时，聚酯表面层（B）的表面粗糙度Ra为3〜40nm，表面粗糙度Ra的变动率为5％以下。 层压膜可以切割并容易地卷绕成扁平卷。

    Biaxially oriented laminated polyester film
    9.
    发明授权
    Biaxially oriented laminated polyester film 失效
    双轴取向叠层聚酯薄膜

    公开(公告)号：US5529832A

    公开(公告)日：1996-06-25

    申请号：US338814

    申请日：1994-11-10

    申请人： Shigeyoshi Masuda ,  Masami Etchu

    发明人： Shigeyoshi Masuda ,  Masami Etchu

    IPC分类号： B32B27/36 ,  G11B5/73 ,  G11B5/738 ,  G11B5/78 ,  G11B23/00 ,  G11B5/704

    CPC分类号： G11B5/78 ,  B32B27/36 ,  G11B5/7305 ,  G11B5/733 ,  G11B5/738 ,  Y10S428/90 ,  Y10S428/906 ,  Y10S428/91 ,  Y10T428/24942 ,  Y10T428/259 ,  Y10T428/26 ,  Y10T428/31797

    摘要： A biaxially oriented laminated polyester film comprising a first polyester surface layer having (a1) a central line average roughness R.sub.aA of 1 to 7.9 nm, (b1) a 10-points average roughness R.sub.ZA of 15 to 400 nm and (c1) an R.sub.ZA /R.sub.aA ratio of 11-51, and a second polyester surface layer having (a2) a central line average roughness R.sub.aB which is greater than R.sub.aA and is 5 to 40 nm, (b2) a 10-points average roughness R.sub.ZB of 75 to 600 nm and (c2) an R.sub.ZB /R.sub.aB ratio of 20 or less, and satisfying the relationship between the first polyester surface layer and the second polyester surface layer, which is represented by the following expressions,R.sub.aA .times.R.sub.aB

    摘要翻译： 一种双轴取向叠层聚酯薄膜，其特征在于，具有：（a1）中心线平均粗糙度RaA为1〜7.9nm的第一聚酯表面层，（b1）15〜400nm的10点平均粗糙度RZA和（c1）RZA / RaA比为11-51，第二聚酯表面层的（a2）中心线平均粗糙度RaB大于RaA且为5〜40nm，（b2）平均粗糙度RZB为75〜600nm 和（c2）RZB / RaB比为20以下，满足由下述式表示的第一聚酯表面层与第二聚酯表面层之间的关系：RaAxRaB <50（1）RZAxRZB = 130〜3,000 （2）。 该双轴取向叠层聚酯膜在用于磁性膜时的润滑性，高速吸收性，加工性和电磁特性优异，特别适用于磁记录介质的基膜。