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1. 发明授权

US06309739B1 Methacrylic acid ester resin composition and film made thereof 有权
标题翻译：甲基丙烯酸酯树脂组合物及其制成的薄膜
公开(公告)号：US06309739B1
公开(公告)日：2001-10-30
申请号：US09135022
申请日：1998-08-17
申请人： Keishi Koizumi , Shigemi Matsumoto , Takao Okimi , Juuichi Nishimura
发明人： Keishi Koizumi , Shigemi Matsumoto , Takao Okimi , Juuichi Nishimura
IPC分类号： C08J518
CPC分类号： C08J5/18 , C08J2333/10 , C08L33/10 , C08L51/003 , Y10T428/254 , Y10T428/31931 , C08L2666/24
摘要： A methacrylate, resin composition having an excellent processability and capable of providing films having excellent impact resistance, transparency, weatherability, solvent resistance and plasticizer migration resistance, which comprises (A) 5 to 50% by weight of a crosslinked acrylate elastomer having a two layer structure of a crosslinked polymer component (a-1) having a glass transition temperature of −30 to 10° C. and a crosslinked polymer component (a-2) having a glass transition temperature of less than −30° C. wherein the component (a-1) is located on the inner side or the outer side and the component (a-2) is located on the outer side or the inner side, and (B) 95 to 50% by weight of an alkyl methacrylate polymer prepared by polymerizing an acrylic monomer containing 80 to 100% by weight of an alkyl methacrylate and 20 to 0% by weight of an alkyl acrylate in the presence of a chain transfer agent and in the presence or absence of the elastomer (A). The composition may further contain a core-shell polymer prepared by graft-polymerizing a monomer containing a major amount of an alkyl methacrylate onto a crosslinked acrylate polymer, whereby molded articles having a matt surface and an excellent flex whitening resistance are obtained.
摘要翻译：具有优异的加工性的甲基丙烯酸酯树脂组合物，其能够提供耐冲击性，透明性，耐候性，耐溶剂性和耐增塑剂迁移性优异的膜，其包含（A）5〜50重量％的具有两层的交联丙烯酸酯弹性体玻璃化转变温度为-30〜10℃的交联聚合物组分（a-1）的结构和玻璃化转变温度低于-30℃的交联聚合物组分（a-2）。其中组分（a-1）位于内侧或外侧，成分（a-2）位于外侧或内侧，（B）95〜50重量％的制备的甲基丙烯酸烷基酯聚合物通过在链转移剂的存在下和在弹性体（A）的存在或不存在下聚合含有80至100重量％的甲基丙烯酸烷基酯和20至0重量％的丙烯酸烷基酯的丙烯酸类单体。组合物还可以含有通过将含有主要量的甲基丙烯酸烷基酯的单体接枝聚合到丙交酯交联聚合物上制备的核 - 壳聚合物，由此获得具有无光泽表面和优异的抗弯白美白性的模塑制品。

2. 发明授权

US07314284B2 Retroreflection sheeting and film for use in retroreflection sheeting 失效
标题翻译：用于回射片的回射片和胶片
公开(公告)号：US07314284B2
公开(公告)日：2008-01-01
申请号：US10583342
申请日：2004-12-14
申请人： Keishi Koizumi , Kazushi Nakatani
发明人： Keishi Koizumi , Kazushi Nakatani
IPC分类号： G02B5/124
CPC分类号： G02B5/124 , Y10T428/254
摘要： An object of the present invention is to provide a retroreflective sheeting that exhibits proper retroreflection even at a small incident angle with no or less halation, and has superior incident angularities and superior direction characteristics, as well as a film for use in the retroreflective sheeting. The retroreflective sheeting with the above characteristics is obtained by forming reflective elements of a specific triangular pyramidal frustum configuration in a close-packed state on one surface thereof. The shape of the triangular pyramid frustum element satisfies following requirements: one side length of the bottom surface is in the range of 50 to 400 μm, and a difference between a longest side and a shortest side is 200 μm or less; the length of a longest edge is in the range of 50 to 400 μm, and a difference between the longest edge and a shortest edge among the three edges is 100 μm or less; when a vertical line which intersects perpendicularly with the bottom surface is drawn from a top surface to the bottom surface, the length of a longest vertical line is in the range of 20 to 250 μm; and an angle between adjacent side surfaces is in the range of 85 to 95 degrees.
摘要翻译：本发明的目的是提供即使在没有或更少的晕差的小入射角下也能呈现适当的回射的定向反光片，并且具有优异的入射角度和优异的方向特性，以及用于回射片材的膜。具有上述特征的回射片材通过在其一个表面上形成紧密堆积状态的特定三角锥体截头锥体构型的反射元件而获得。三角锥形截头锥元件的形状满足以下要求：底面的一侧长度在50〜400μm的范围内，最长侧和最短边之间的差为200μm以下; 最长边缘的长度在50至400μm的范围内，并且三个边缘中的最长边缘与最短边缘之间的差为100μm或更小; 当从顶表面垂直于底面垂直的垂直线从底面拉出时，最长垂直线的长度在20〜250μm的范围内; 并且相邻侧面之间的角度在85度至95度的范围内。

3. 发明申请

US20070159696A1 Retroreflection sheeting and film for use in retroreflection sheeting 失效
标题翻译：用于回射片的回射片和胶片
公开(公告)号：US20070159696A1
公开(公告)日：2007-07-12
申请号：US10583342
申请日：2004-12-14
申请人： Keishi Koizumi , Kazushi Nakatani
发明人： Keishi Koizumi , Kazushi Nakatani
IPC分类号： G02B5/124
CPC分类号： G02B5/124 , Y10T428/254
摘要： An object of the present invention is to provide a retroreflective sheeting that exhibits proper retroreflection even at a small incident angle with no or less halation, and has superior incident angularities and superior direction characteristics, as well as a film for use in the retroreflective sheeting. The retroreflective sheeting with the above characteristics is obtained by forming reflective elements of a specific triangular pyramidal frustum configuration in a close-packed state on one surface thereof. The shape of the triangular pyramid frustum element satisfies following requirements: one side length of the bottom surface is in the range of 50 to 400 μm, and a difference between a longest side and a shortest side is 200 μm or less; the length of a longest edge is in the range of 50 to 400 μm, and a difference between the longest edge and a shortest edge among the three edges is 100 μm or less; when a vertical line which intersects perpendicularly with the bottom surface is drawn from a top surface to the bottom surface, the length of a longest vertical line is in the range of 20 to 250 μm; and an angle between adjacent side surfaces is in the range of 85 to 95 degrees.
摘要翻译：本发明的目的是提供即使在没有或更少的晕差的小入射角下也能呈现适当的回射的定向反光片，并且具有优异的入射角度和优异的方向特性，以及用于回射片材的膜。具有上述特征的回射片材通过在其一个表面上形成紧密堆积状态的特定三角锥体截头锥体构型的反射元件而获得。三角锥形截头锥元件的形状满足以下要求：底面的一侧长度在50〜400μm的范围内，最长侧和最短边之间的差为200μm以下; 最长边缘的长度在50至400μm的范围内，并且三个边缘中的最长边缘与最短边缘之间的差为100μm或更小; 当从顶表面垂直于底面垂直的垂直线从底面拉出时，最长垂直线的长度在20〜250μm的范围内; 并且相邻侧面之间的角度在85度至95度的范围内。

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