公开(公告)号：US20140093685A1

公开(公告)日：2014-04-03

申请号：US14099370

申请日：2013-12-06

Applicant: DEXERIALS CORPORATION

Inventor： Noboru ARAKI

IPC: C09J7/00

CPC classification number: C09J7/00 ,  C08F220/06 ,  C08F220/18 ,  C08F222/1006 ,  C08F2220/1833 ,  C08K3/013 ,  C08K5/0025 ,  C08K2201/003 ,  C09J4/00 ,  C09J7/10 ,  C09J2201/134 ,  C09J2201/622 ,  C09J2433/00 ,  Y10T428/24372 ,  C08F2220/1858 ,  C08F2222/102

Abstract: Disclosed is a double-sided adhesive tape that has a difference in adhesion between the front and rear sides thereof and can be produced to have a reduced thickness by a simple method. The double-sided adhesive tape is a sheet-shaped cured product of an adhesive composition containing a resin composition and an inorganic filler. The resin composition contains (A) an acrylate-based monomer, (B) a monomer copolymerizable with (A), (C) a photopolymerization initiator, and (D) a photo-crosslinking agent. The inorganic filler has an average particle diameter of 30 μm or less and is localized on one side of the tape. The surface roughness (center line average roughness Ra) of the tape surface on the side on which the inorganic filler is localized is 0.01 to 0.50 μm.

Abstract translation: 公开了一种双面胶带，其在其前侧和后侧之间的粘合力差异，并且可以通过简单的方法制造成具有减小的厚度。 双面胶带是包含树脂组合物和无机填料的粘合剂组合物的片状固化产物。 树脂组合物含有（A）丙烯酸酯类单体，（B）可与（A）共聚的单体，（C）光聚合引发剂，（D）光交联剂。 无机填料的平均粒径为30μm以下，位于带的一侧。 无机填料一侧的带表面的表面粗糙度（中心线平均粗糙度Ra）为0.01〜0.50μm。

公开(公告)号：US20150284602A1

公开(公告)日：2015-10-08

申请号：US14743393

申请日：2015-06-18

Applicant: DEXERIALS CORPORATION

Inventor： Noboru ARAKI ,  Tomoyuki ABE ,  Takanori OGATA

IPC: C09J133/08 ,  C09J7/02

CPC classification number: C09J133/08 ,  B32B7/12 ,  B32B15/043 ,  B32B15/088 ,  B32B15/20 ,  B32B25/14 ,  B32B27/40 ,  B32B2605/00 ,  C09J4/00 ,  C09J7/22 ,  C09J7/243 ,  C09J7/26 ,  C09J7/38 ,  C09J133/04 ,  C09J133/06 ,  C09J2201/128 ,  C09J2201/622 ,  C09J2400/243 ,  C09J2423/006 ,  C09J2423/046 ,  C09J2433/00 ,  C09J2433/003 ,  Y10T428/249983

Abstract: In a double-sided adhesive tape in which acrylic-based adhesive layers are formed on respective sides of an electron beam cross-linked polyethylene foam substrate, the acrylic-based adhesive layers are formed from a cured resin composition formed by irradiating a solvent-free photopolymerizable monomer composition containing an acrylic-based monomer and a photopolymerization initiator with ultraviolet rays to photo-polymerize the acrylic-based monomer. The cured resin composition contains an adhesion-imparting polymer having a weight average molecular weight of 2,000 to 10,000, an acrylic-based polymer A obtained by photopolymerization in the absence of a cross-linking agent and having a weight average molecular weight of 700,000 to 3,000,000, and an acrylic-based polymer B obtained by photopolymerization in the absence of a cross-linking agent and having a weight average molecular weight of 350,000 to 650,000. The molecular weight distribution of the cured resin composition measured by gel permeation chromatography using tetrahydrofuran is 2.4 to 4.4.

Abstract translation: 在电子束交联聚乙烯泡沫基材的两侧形成有丙烯酸类粘合剂层的双面胶带中，丙烯酸类粘合剂层由通过照射无溶剂形成的固化树脂组合物形成 含有丙烯酸系单体和光聚合引发剂的紫外线光聚合性单体组合物，使丙烯酸类单体光聚合。 固化树脂组合物含有重均分子量为2,000〜10,000的粘合赋予性聚合物，在不存在交联剂的情况下通过光聚合得到的丙烯酸类聚合物A，其重均分子量为70万〜300万 和在不存在交联剂的情况下通过光聚合得到的丙烯酸系聚合物B，其重均分子量为35万〜65万。 通过使用四氢呋喃的凝胶渗透色谱法测定的固化树脂组合物的分子量分布为2.4〜4.4。