公开(公告)号：US08883896B2

公开(公告)日：2014-11-11

申请号：US13130392

申请日：2009-11-24

申请人： Shinya Oshita ,  Yoshihiro Morishita ,  Saori Tamura

发明人： Shinya Oshita ,  Yoshihiro Morishita ,  Saori Tamura

IPC分类号： C08G18/62 ,  C08G18/80 ,  C09J153/00 ,  C09J7/02 ,  G02B1/04 ,  C08G18/28 ,  C08G18/79 ,  C08G18/42 ,  G02B1/10

CPC分类号： C09J153/00 ,  C08G18/289 ,  C08G18/4238 ,  C08G18/792 ,  C08G18/794 ,  C08G18/8025 ,  C08G2170/40 ,  C08K5/29 ,  C08L53/00 ,  C09J7/385 ,  C09J7/387 ,  C09J175/04 ,  G02B1/04 ,  G02B1/105 ,  G02B1/14 ,  G02F2202/28 ,  Y10T428/31935

摘要： A non-crosslinking type adhesive composition for an optical film is provided that has excellent adhesion to a substrate, allows peeling to be carried out at a suitable peeling strength without leaving an adhesive residue, has excellent reworking properties, can maintain good adhesion properties for a long time, and has excellent durability. The adhesive composition for an optical film includes an acrylic triblock copolymer, which does not have an NCO functional group, and an isocyanate compound. The acrylic triblock copolymer (I), which is represented by the formula A1-B-A2, is formed by alkyl methacrylate polymer blocks A1 and A2 having a Tg of 100° C. or more and an alkyl acrylate polymer block B having a Tg of −20° C. or less, wherein the content of the block B is 40 to 95 mass %, Mw is 50,000 to 300,000, and the molecular weight distribution is 1.0 to 1.5. Based on the mass of the solids in the adhesive composition, the content of the acrylic triblock copolymer (I) is 60 mass % or more, and the content of the isocyanate compound is 0.0015 mass % or more to less than 0.35 mass % in terms of NCO group content.

摘要翻译： 提供了一种用于光学膜的非交联型粘合剂组合物，其对基材具有优异的粘附性，允许以合适的剥离强度进行剥离而不留下粘合残留物，具有优异的返工性能，可以保持良好的粘合性能 时间长，耐久性好。 用于光学膜的粘合剂组合物包括不具有NCO官能团的丙烯酸类三嵌段共聚物和异氰酸酯化合物。 由式A1-B-A2表示的丙烯酸类三嵌段共聚物（I）由Tg为100℃以上的甲基丙烯酸甲酯聚合物嵌段A1和A2和具有Tg的丙烯酸烷基酯聚合物嵌段B形成 为-20℃以下，其中嵌段B的含量为40〜95质量％，Mw为50,000〜300,000，分子量分布为1.0〜1.5。 基于粘合剂组合物中的固体质量，丙烯酸类三嵌段共聚物（I）的含量为60质量％以上，异氰酸酯化合物的含量为0.0015质量％以上至小于0.35质量％ 的NCO组内容。

公开(公告)号：US20110230609A1

公开(公告)日：2011-09-22

申请号：US13130392

申请日：2009-11-24

申请人： Shinya Oshita ,  Yoshihiro Morishita ,  Saori Tamura

发明人： Shinya Oshita ,  Yoshihiro Morishita ,  Saori Tamura

IPC分类号： C09J153/00 ,  C09J11/06 ,  C09J11/02 ,  C09J175/04 ,  C09J7/00

CPC分类号： C09J153/00 ,  C08G18/289 ,  C08G18/4238 ,  C08G18/792 ,  C08G18/794 ,  C08G18/8025 ,  C08G2170/40 ,  C08K5/29 ,  C08L53/00 ,  C09J7/385 ,  C09J7/387 ,  C09J175/04 ,  G02B1/04 ,  G02B1/105 ,  G02B1/14 ,  G02F2202/28 ,  Y10T428/31935

摘要： A non-crosslinking type adhesive composition for an optical film is provided that has excellent adhesion to a substrate, allows peeling to be carried out at a suitable peeling strength without leaving an adhesive residue, has excellent reworking properties, can maintain good adhesion properties for a long time, and has excellent durability. The adhesive composition for an optical film includes an acrylic triblock copolymer, which does not have an NCO functional group, and an isocyanate compound. The acrylic triblock copolymer (I), which is represented by the formula A1-B-A2, is formed by alkyl methacrylate polymer blocks A1 and A2 having a Tg of 100° C. or more and an alkyl acrylate polymer block B having a Tg of −20° C. or less, wherein the content of the block B is 40 to 95 mass %, Mw is 50,000 to 300,000, and the molecular weight distribution is 1.0 to 1.5. Based on the mass of the solids in the adhesive composition, the content of the acrylic triblock copolymer (I) is 60 mass % or more, and the content of the isocyanate compound is 0.0015 mass % or more to less than 0.35 mass % in terms of NCO group content.

摘要翻译： 提供了一种用于光学膜的非交联型粘合剂组合物，其对基材具有优异的粘附性，允许以合适的剥离强度进行剥离而不留下粘合残留物，具有优异的返工性能，可以保持良好的粘合性能 时间长，耐久性好。 用于光学膜的粘合剂组合物包括不具有NCO官能团的丙烯酸类三嵌段共聚物和异氰酸酯化合物。 由式A1-B-A2表示的丙烯酸类三嵌段共聚物（I）由Tg为100℃以上的甲基丙烯酸甲酯聚合物嵌段A1和A2和具有Tg的丙烯酸烷基酯聚合物嵌段B形成 为-20℃以下，其中嵌段B的含量为40〜95质量％，Mw为50,000〜300,000，分子量分布为1.0〜1.5。 基于粘合剂组合物中的固体质量，丙烯酸类三嵌段共聚物（I）的含量为60质量％以上，异氰酸酯化合物的含量为0.0015质量％以上至小于0.35质量％ 的NCO组内容。