公开(公告)号：US20140065415A1

公开(公告)日：2014-03-06

申请号：US13975652

申请日：2013-08-26

Applicant: NITTO DENKO CORPORATION

Inventor： Shogo SASAKI ,  Toru ISEKI ,  Souya JO ,  Shou UCHIDA ,  Ryohei SAWAZAKI ,  Masahiko ANDO

IPC: C09J175/04 ,  B32B7/12 ,  C09J7/02

CPC classification number: B32B7/12 ,  C08G18/222 ,  C08G18/4816 ,  C08G18/482 ,  C08G18/4829 ,  C08G18/5021 ,  C08G18/792 ,  C08G18/794 ,  C08G2170/40 ,  C09J7/38 ,  C09J175/04 ,  Y10T428/2848 ,  Y10T428/2896

Abstract: A urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyol (A) contains a polyol (A1) having 3 OH groups and a number-average molecular weight Mn of 8,000 to 20,000. The urethane-based pressure-sensitive adhesive is excellent in reworkability, initial wettability, and transparency, and is preferably excellent in adhesive residue-preventing property, that preferably has a large wetting rate, and that is preferably prevented from showing external appearance unevenness due to orange peel. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer. Further provided is an optical member or electronic member to which such surface protective film is attached.

Abstract translation: 包含聚氨酯类树脂的聚氨酯类压敏粘合剂，其中：所述聚氨酯类树脂包括通过固化含有多元醇（A）和多官能异氰酸酯化合物（B）的组合物而获得的聚氨酯类树脂; 多元醇（A）含有3个OH基，数均分子量Mn为8,000〜20,000的多元醇（A1）。 氨基甲酸酯类压敏粘合剂的再加工性，初始润湿性和透明性优异，优选具有优选具有较大润湿速度的粘合剂残留防止性优异，并且优选防止由于 橙皮 还提供了在其压敏粘合剂层中使用这种聚氨酯类压敏粘合剂的表面保护膜。 还提供了附着有这种表面保护膜的光学构件或电子构件。

公开(公告)号：US20140039123A1

公开(公告)日：2014-02-06

申请号：US13954667

申请日：2013-07-30

Applicant: NITTO DENKO CORPORATION

Inventor： Toru ISEKI ,  Shogo SASAKI ,  Souya JO ,  Masahiko ANDO

IPC: C09J11/06

CPC classification number: C09J11/06 ,  C08G18/222 ,  C08G18/4277 ,  C08G18/4816 ,  C08G18/482 ,  C08G18/4829 ,  C08G18/4866 ,  C08G18/5021 ,  C08G18/792 ,  C08G18/794 ,  C08G2170/40 ,  C09J7/22 ,  C09J7/38 ,  C09J175/04 ,  C09J2475/00

Abstract: A resin composition includes: a polyol (A) having two or more OH groups; a polyfunctional isocyanate compound (B); and a catalyst (C), in which: the content ratio of the polyfunctional isocyanate compound (B) with respect to 100 parts by weight of the polyol (A) is 1 part by weight to 100 parts by weight; and the catalyst (C) includes an iron complex compound. The resin composition can serve as a pressure-sensitive adhesive composition that is a material for forming a pressure-sensitive adhesive layer containing a polyurethane-based resin, the resin composition showing extremely high reactivity without any use of a tin compound as a catalyst, allowing a cross-linking reaction between a polyol and a polyfunctional isocyanate compound to rapidly progress, and being capable of providing a pressure-sensitive adhesive layer having high transparency. Also provided are a pressure-sensitive adhesive sheet and a surface protective film each including such pressure-sensitive adhesive layer.

Abstract translation: 树脂组合物包括：具有两个以上OH基的多元醇（A） 多官能异氰酸酯化合物（B）; 和催化剂（C），其中：多官能异氰酸酯化合物（B）相对于100重量份多元醇（A）的含量比为1重量份至100重量份; 催化剂（C）包括铁络合物。 树脂组合物可以用作形成含有聚氨酯类树脂的压敏粘合剂层的材料的粘合剂组合物，该树脂组合物在不使用锡化合物作为催化剂的情况下显示极高的反应性，允许 多元醇和多官能异氰酸酯化合物之间的交联反应快速进行，并且能够提供具有高透明度的压敏粘合剂层。 还提供了各自包括这种压敏粘合剂层的压敏粘合片和表面保护膜。