公开(公告)号：US20080220235A1

公开(公告)日：2008-09-11

申请号：US12089139

申请日：2006-09-29

申请人： Hiroko Izumi ,  Yoshitomo Nakata ,  Kenichi Ueda

发明人： Hiroko Izumi ,  Yoshitomo Nakata ,  Kenichi Ueda

IPC分类号： C08F220/18 ,  C08F220/36 ,  C08F8/16

CPC分类号： C08J5/18 ,  C08F8/16 ,  C08F220/14 ,  C08F220/36 ,  C08J2333/06 ,  C08L37/00 ,  C08F220/26

摘要： To provide an amorphous thermoplastic resin and a film or sheet each having high transparency and high heat resistance and a UV-absorbing ability, which can be used in various optical materials which needs to have excellent optical characteristics and well-balanced mechanical strength, molding processability, and surface hardness. An amorphous thermoplastic resin including a UV-absorbing monomer unit and having a glass transition temperature of 120° C. or more, in which the amorphous thermoplastic resin has a light transmittance of 80% or more at 500 nm and a light transmittance of less than 30% at 380 nm.

摘要翻译： 为了提供可以用于需要具有优异的光学特性和良好平衡的机械强度的各种光学材料中的具有高透明度，高耐热性和UV吸收能力的无定形热塑性树脂和膜或片，成型加工性 ，和表面硬度。 一种无定形热塑性树脂，其包含紫外线吸收性单体单元，玻璃化转变温度为120℃以上，所述无定形热塑性树脂在500nm下的透光率为80％以上，透光率小于 在380nm处为30％。

公开(公告)号：US20100168363A1

公开(公告)日：2010-07-01

申请号：US11989945

申请日：2006-08-02

申请人： Ken-ichi Ueda ,  Hiroko Izumi ,  Yoshitomo Nakata ,  Nobuhiro Maeda

发明人： Ken-ichi Ueda ,  Hiroko Izumi ,  Yoshitomo Nakata ,  Nobuhiro Maeda

IPC分类号： C08F220/10

CPC分类号： C08F8/16 ,  C08F8/48 ,  C08F212/08 ,  C08F220/06 ,  C08F220/14 ,  C08F220/28 ,  C08F222/40

摘要： The low birefringent material of the present invention is, for example, an acrylic copolymer including a lactone ring structure which can provide a positive retardation and a structural unit which can provide a negative retardation, the acrylic copolymer satisfying following conditions that: (A) the copolymer has a glass transition temperature (Tg) of 100° C. or higher; (B) a film comprising the copolymer has a total light transmittance of 85% or higher; and (C) a retardation per 100 μm of thickness in an in-plane direction of the film is 10 nm or lower, and a difference between a retardation per 100 μm of thickness in an in-plane direction of the film after the film is drawn by 1.5 times and a retardation per 100 μm of thickness in an in-plane direction of the film before the film is drawn is 20 nm or lower. The low birefringent material of the present invention has excellent transparency and heat resistance, also has other desired properties including mechanical strength and forming processability, has low coloration properties when no nitrogen atom is contained, and particularly has high optical isotropy.

摘要翻译： 本发明的低双折射材料是例如包含可提供正相位差的内酯环结构的丙烯酸共聚物和可提供负相位差的结构单元，所述丙烯酸共聚物满足以下条件：（A） 共聚物的玻璃化转变温度（Tg）为100℃以上; （B）包含共聚物的膜的总透光率为85％以上; 和（C）膜的面内方向每100μm厚度的延迟为10nm以下，膜后的膜的面内方向的每100μm厚度的延迟差为 拉伸1.5倍，并且在拉伸膜之前在膜的面内方向上每100μm厚度的延迟为20nm以下。 本发明的低双折射材料具有优异的透明性和耐热性，还具有包括机械强度和成形加工性在内的其它期望的性能，当不含氮原子时具有低着色性，特别是具有高的光学各向同性。

公开(公告)号：US20100020396A1

公开(公告)日：2010-01-28

申请号：US12445666

申请日：2007-09-27

申请人： Hiroko Izumi ,  Yoshitomo Nakata ,  Ken-Ichi Ueda ,  Daisuke Hattori ,  Tadashi Kojima ,  Hiroyuki Takao ,  Tsutomu Hani

发明人： Hiroko Izumi ,  Yoshitomo Nakata ,  Ken-Ichi Ueda ,  Daisuke Hattori ,  Tadashi Kojima ,  Hiroyuki Takao ,  Tsutomu Hani

IPC分类号： G02B27/28 ,  F21V9/06

CPC分类号： G02F1/133528 ,  G02B5/305 ,  G02F2201/086 ,  G02F2201/50

摘要： Provided are: a polarizer protective film, which is allowed to express excellent UV-absorbing ability by using a UV-absorbing monomer as a raw material, has excellent heat resistance and excellent optical transparency, and has much less coloring and foaming; a polarizing plate with less defects in an outer appearance, using the polarizer protective film; and an image display apparatus of high quality, using the polarizing plate. The polarizer protective film of the present invention has a light transmittance at 380 nm in a thickness of 80 μm of 30% or less, and is obtained by molding a forming material that contains a resin component containing as a main component a (meth)acrylic resin obtained by polymerizing a monomer composition containing a UV-absorbing monomer and a (meth)acrylic monomer by extrusion molding.

摘要翻译： 提供：通过使用紫外线吸收性单体作为原料使其表现出优异的紫外线吸收能力的偏光片保护膜具有优异的耐热性和优异的光学透明性，并且具有更少的着色和起泡性; 使用偏振片保护膜的外观较差缺陷的偏振片; 以及使用偏振片的高质量的图像显示装置。 本发明的偏振片保护膜的厚度为80μm的透光率为380nm，为30％以下，通过将含有以（甲基）丙烯酸类作为主要成分的树脂成分的成型材料成型而得到 通过挤出成型使包含UV吸收性单体和（甲基）丙烯酸系单体的单体组合物聚合而得到的树脂。

公开(公告)号：US20090124775A1

公开(公告)日：2009-05-14

申请号：US11718758

申请日：2005-11-04

申请人： Takashi Miyai ,  Yoshitomo Nakata ,  Yasuhiro Matsuda ,  Mitsuru Nakajima

发明人： Takashi Miyai ,  Yoshitomo Nakata ,  Yasuhiro Matsuda ,  Mitsuru Nakajima

IPC分类号： C08F26/10

CPC分类号： C08F226/10

摘要： To provide a high concentration solution of a vinylpyrrolidone polymer having a low K value, which can be used in various applications such as medical applications and applications where coloring is problematic. A monomer component essentially containing N-vinylpyrrolidone, hydrogen peroxide, and ammonia are sequentially added to a copper catalyst-containing aqueous solvent and polymerized at 55 to 90° C., and the ammonia is used in an amount of 0.1 to 0.37% by weight based on the N-vinylpyrrolidone. As a result, a 40 to 60% by weight solution of a vinylpyrrolidone polymer having a K value of 60 or less, wherein the solution has: an N-vinylpyrrolidone content of 10 ppm or less relative to the vinylpyrrolidone polymer; an alkanol concentration of 100 ppm or less; and an ignition residue of 0.1% by weight or less, and a 50% by weight solution of the vinylpyrrolidone polymer has a hue (APHA) according to JIS-K3331 of 280 or less.

摘要翻译： 提供具有低K值的乙烯基吡咯烷酮聚合物的高浓度溶液，其可用于各种应用中，例如医疗应用和着色有问题的应用。 将基本上含有N-乙烯基吡咯烷酮，过氧化氢和氨的单体组分依次加入到含铜催化剂的水性溶剂中并在55〜90℃下聚合，氨的用量为0.1〜0.37重量％ 基于N-乙烯基吡咯烷酮。 结果，具有K值为60以下的乙烯基吡咯烷酮聚合物的40〜60重量％的溶液，其中所述溶液具有相对于所述乙烯基吡咯烷酮聚合物为10ppm以下的N-乙烯基吡咯烷酮含量; 链烷醇浓度为100ppm以下; 和0.1重量％以下的点火残渣，50重量％的乙烯基吡咯烷酮聚合物的溶液的色相（APHA）根据JIS-K3331为280以下。

公开(公告)号：US06498231B2

公开(公告)日：2002-12-24

申请号：US09998665

申请日：2001-12-03

申请人： Daijo Tomihisa ,  Toshiaki Kuriyama ,  Tomiyasu Ueta ,  Akio Naka ,  Hideyuki Nishibayashi ,  Yoshitomo Nakata

发明人： Daijo Tomihisa ,  Toshiaki Kuriyama ,  Tomiyasu Ueta ,  Akio Naka ,  Hideyuki Nishibayashi ,  Yoshitomo Nakata

IPC分类号： C08F600

CPC分类号： C08K5/005 ,  C08K5/13 ,  C08L39/06

摘要： The present invention provides: a vinylpyrrolidone polymer which exhibits good heat resistance and storage stability; a composition containing the vinylpyrrolidone polymer; a stabilization process for the vinylpyrrolidone polymer, and a preservation process for a vinylpyrrolidone polymer by which: even when the vinylpyrrolidone polymer is preserved for a long time or at high temperature, the physical properties such as molecular weight (K value) of the vinylpyrrolidone polymer can be prevented from changing, therefore the vinylpyrrolidone polymer can stably be preserved. To enhance the heat resistance and the storage stability, a vinylpyrrolidone polymer is mixed with a certain amount of antioxidant, and the oxygen concentration is suppressed to not higher than 50,000 ppm in a gas phase that contacts with the vinylpyrrolidone polymer when preserving.

公开(公告)号：US20080247981A1

公开(公告)日：2008-10-09

申请号：US11718755

申请日：2005-11-04

申请人： Daisuke Imai ,  Keiko Izumi ,  Yoshitomo Nakata

发明人： Daisuke Imai ,  Keiko Izumi ,  Yoshitomo Nakata

IPC分类号： C08F26/08 ,  A61K8/81 ,  A61Q5/06

CPC分类号： A61K8/8182 ,  A61K8/042 ,  A61Q5/06 ,  C08F218/08 ,  C08F226/10

摘要： To provide a vinylpyrrolidone/vinyl acetate copolymer which is extremely reduced in thermal yellowing and is usable even at high temperatures and which can dissolve in water to give a transparent solution. The vinylpyrrolidone/vinyl acetate copolymer of the present invention has a residual vinylpyrrolidone content of 100 ppm or less relative to a solid content of the copolymer. A 5% by weight aqueous solution of the copolymer has an NTU value of 4.0 or less. A 50% aqueous solution of the copolymer has a Hazen color number (APHA) according to JIS-K3331 of 350 or less, the Hazen color number being measured by the following accelerated test.

摘要翻译： 提供一种乙烯基吡咯烷酮/乙酸乙烯酯共聚物，其在热黄变中极度降低，并且即使在高温下也可使用，并且可溶于水以提供透明溶液。 本发明的乙烯基吡咯烷酮/乙酸乙烯酯共聚物相对于共聚物的固体成分的残留乙烯基吡咯烷酮含量为100ppm以下。 共聚物的5重量％水溶液的NTU值为4.0以下。 共聚物的50％水溶液根据JIS-K3331的Hazen色数（APHA）为350以下，通过以下加速试验测定Hazen色数。

公开(公告)号：US20050215740A1

公开(公告)日：2005-09-29

申请号：US11086758

申请日：2005-03-23

申请人： Yoshitomo Nakata ,  Norihiro Wakao

发明人： Yoshitomo Nakata ,  Norihiro Wakao

IPC分类号： C08F8/12 ,  C08F26/02 ,  C08F26/10 ,  C08F4/00 ,  C08F120/54

CPC分类号： C08F26/02 ,  C08F26/10

摘要： The present invention provides an innovative N-vinylamide polymer with decreased contents of impurities and suppressed coloration, a higher K-value, and preferably usable in a variety of fields such as cosmetic and pharmaceutical products, and to provide a production method of the polymer. An N-vinylamide polymer comprising an N-vinylamide monomer unit, wherein the N-vinylamide polymer has K-value of 60 or higher, a content of hydrolysis products of N-vinylamide monomer of 0.02% by weight or less, a content of ashes of 0.1% by weight or less, and hue of 10% aqueous solution of 10 or less measured according to JIS K0071.

摘要翻译： 本发明提供了一种具有降低的杂质含量和抑制着色，更高的K值并且优选可用于各种领域如化妆品和药物产品的创新的N-乙烯基酰胺聚合物，并且提供了聚合物的制备方法。 包含N-乙烯基酰胺单体单元的N-乙烯基酰胺聚合物，其中所述N-乙烯基酰胺聚合物的K值为60以上，N-乙烯基酰胺单体的水解产物的含量为0.02重量％以下，灰分含量 为0.1重量％以下，根据JIS K0071测定的10％以下的10％以下的色相。

公开(公告)号：US6100366A

公开(公告)日：2000-08-08

申请号：US382404

申请日：1999-08-24

申请人： Yoshitomo Nakata ,  Kazumi Fujioka

发明人： Yoshitomo Nakata ,  Kazumi Fujioka

IPC分类号： C08F226/00 ,  C08F226/06 ,  C08G73/00 ,  C08F122/40 ,  C08F283/00 ,  C08G69/00

CPC分类号： C08F226/06

摘要： The present invention provides: a cyclic imino ether group containing polymer with an extremely reduced amount of residual cyclic imino ether group containing monomer; and a production process therefor. The cyclic imino ether group containing polymer is obtained by a process including the step of polymerizing a monomer component including a cyclic imino ether group containing monomer, and contains a cyclic imino ether group containing monomer unit in the ratio of not less than 0.1 mol %, wherein the amount of the cyclic imino ether group containing monomer remaining in the polymer is not more than 15 ppm. The production process for a cyclic imino ether group containing polymer comprises the steps of: radical-polymerizing a monomer component including a cyclic imino ether group containing monomer to obtain a cyclic imino ether group containing polymer; devolatilizing the resultant polymer by vacuum heating treatment to remove volatile components from the polymer; and adding a compound, reactable with the cyclic imino ether group, to the polymer in the devolatilizing step.

摘要翻译： 本发明提供：含有极少量残留的含有亚氨基醚基团的残留单体的含有环氧亚氨基醚基团的聚合物; 及其生产工艺。 含有环亚胺基醚基的聚合物的方法包括使包含含有环亚胺醚基团的单体的单体组分聚合的步骤，并且含有不少于0.1摩尔％的含有单体单元的环状亚氨基醚基团， 其中所述聚合物中剩余的含环状亚氨基醚基单体的量不大于15ppm。 含有环亚胺醚基团的聚合物的制备方法包括以下步骤：使含有环状亚氨基醚基团的单体的单体成分自由基聚合，得到含有环亚胺醚基的聚合物; 通过真空加热处理使得到的聚合物脱挥发分以从聚合物中除去挥发性组分; 并在脱挥发分步骤中向聚合物中加入与环状亚氨基醚基团反应的化合物。

公开(公告)号：US07851568B2

公开(公告)日：2010-12-14

申请号：US11907906

申请日：2007-10-18

申请人： Daisuke Imai ,  Keiko Izumi ,  Yoshitomo Nakata

发明人： Daisuke Imai ,  Keiko Izumi ,  Yoshitomo Nakata

IPC分类号： C08F26/10

CPC分类号： C08F226/10

摘要： There is provided a vinylpyrrolidone-based copolymer having as essential components N-vinylpyrrolidone and hydroxyl group-containing (meth)acrylate, which gives a favorable crosslinked coating film, and a method for production by which the copolymer is easily obtained.A vinylpyrrolidone-based copolymer of the present invention contains a constitutional unit derived from N-vinylpyrrolidone and a constitutional unit derived from hydroxyl group-containing (meth)acrylate at a specific ratio, in which a K value according to Fikentscher is 12 or more, water insoluble matter is 0.5% by mass (on the basis of solid content) or less, and each content of iron, nickel, chromium, sodium and calcium is 500 ppb (on the basis of mass: the same hereinafter) or less, or electrical conductivity of a 10% by mass-aqueous solution of the vinylpyrrolidone-based copolymer is 35 μS/cm or less.

摘要翻译： 提供了作为必要成分的N-乙烯基吡咯烷酮和含羟基（甲基）丙烯酸酯的乙烯基吡咯烷酮类共聚物，其具有良好的交联涂膜，以及易于获得共聚物的制造方法。 本发明的基于乙烯基吡咯烷酮的共聚物含有由N-乙烯基吡咯烷酮衍生的结构单元和来自含羟基（甲基）丙烯酸酯的结构单元，其特征在于，其中根据Fikentscher的K值为12以上， 水不溶物为0.5质量％（以固体成分为基准）以下，铁，镍，铬，钠和钙的含量为500ppb（以质量计：下同）或以下 乙烯基吡咯烷酮类共聚物的10质量％水溶液的导电率为35μS/ cm以下。

公开(公告)号：US06642333B2

公开(公告)日：2003-11-04

申请号：US10394148

申请日：2003-03-24

申请人： Yoshitomo Nakata

发明人： Yoshitomo Nakata

IPC分类号： C08F2608

CPC分类号： C08F26/10

摘要： The present invention provides a vinylpyrrolidone (co)polymer excellent in the color tone and the thermal yellowing resistance despite its low molecular weight. The vinylpyrrolidone (co)polymer, according to the present invention, is a vinylpyrrolidone (co)polymer which has a Hazen value of not more than 30 in the form of 5% aqueous solution and a K value of not more than 60 and is obtained by a process including the step of polymerizing a polymerizable monomer component with an azo compound initiator and/or an organic peroxide initiator, wherein the polymerizable monomer component includes N-vinylpyrrolidone, and wherein the azo compound initiator has a chemical structure as shown by —C(CH3)2—N═N—C(CH3)2—, and wherein the organic peroxide initiator is soluble in water or ethyl alcohol of 25° C. in an amount of not smaller than 3 weight %.

摘要翻译： 本发明提供尽管分子量低的色调和耐热黄变性优异的乙烯基吡咯烷酮（共）聚合物。 根据本发明的乙烯基吡咯烷酮（共）聚合物是以5％水溶液的形式具有不大于30的Hazen值和不大于60的K值的乙烯基吡咯烷酮（共）聚合物，并且获得 通过包括使可聚合单体组分与偶氮化合物引发剂和/或有机过氧化物引发剂聚合的步骤的方法，其中可聚合单体组分包括N-乙烯基吡咯烷酮，并且其中偶氮化合物引发剂具有如-C （CH 3）2 -N = NC（CH 3）2，其中有机过氧化物引发剂可溶于不低于3重量％的25℃的水或乙醇中。