公开(公告)号：US20160221299A1

公开(公告)日：2016-08-04

申请号：US14914359

申请日：2014-08-21

Applicant: NITTO DENKO CORPORATION

Inventor： Kohei DOI ,  Kunio NAGASAKI ,  Tetsuya OTSUKA ,  Mika OKADA ,  Kazumichi KATO ,  Hideyuki TOKUYAMA ,  Tsunaki KITAHARA ,  Tadao TAKAHASHI ,  Kiichiro MATSUSHITA

IPC: B32B5/18 ,  H05K5/00 ,  B32B7/12

CPC classification number: B32B5/18 ,  B32B7/06 ,  B32B7/12 ,  B32B27/065 ,  B32B27/308 ,  B32B27/36 ,  B32B2266/0207 ,  B32B2266/0221 ,  B32B2266/0242 ,  B32B2266/0278 ,  B32B2266/06 ,  B32B2307/302 ,  B32B2307/54 ,  B32B2307/546 ,  B32B2307/558 ,  B32B2307/56 ,  B32B2307/72 ,  B32B2307/732 ,  B32B2457/20 ,  B32B2571/00 ,  C08J9/30 ,  C08J2201/026 ,  C08J2201/0504 ,  C08J2205/05 ,  C08J2205/06 ,  C08J2309/04 ,  C08J2323/08 ,  C08J2333/08 ,  C08J2375/04 ,  C09J7/26 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2423/046 ,  C09J2431/006 ,  C09J2433/006 ,  C09J2475/006 ,  H04M1/0266 ,  H04M1/185 ,  H05K5/0017

Abstract: A foamed sheet according to the present invention has a thickness of 30 to 500 μm and includes a foam. The foam has a density of 0.2 to 0.7 g/cm3, an average cell diameter of 10 to 150 μm, and a peak top of loss tangent (tan δ) occurring in a temperature range of from −30° C. to 30° C., where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan δ) in the temperature range of from −30° C. to 30° C. of 0.2 or more.

Abstract translation: 根据本发明的发泡片材的厚度为30-500μm，并且包括泡沫。 泡沫体的密度为0.2〜0.7g / cm 3，平均泡孔直径为10〜150μm，在-30℃〜30℃的温度范围内发生损耗角正切峰值（tanδ） 其中损耗角正切被定义为在泡沫的动态粘弹性测量中以1rad / s的角频率确定的损耗模量与储能模量的比率。 泡沫优选在-30℃至30℃的温度范围内具有0.2或更大的损耗角正切（tanδ）的最大值。

公开(公告)号：US20160280967A1

公开(公告)日：2016-09-29

申请号：US15032138

申请日：2014-10-01

Applicant: NITTO DENKO CORPORATION

Inventor： Natsuki UKEI ,  Izumi NISHIMURA ,  Chie MATSUMOTO ,  Mika OKADA ,  Nobuaki MARUOKA

IPC: C09J7/02

CPC classification number: C09J123/22 ,  C08K5/29 ,  C08K5/353 ,  C09J7/22 ,  C09J7/38 ,  C09J133/06 ,  C09J133/08 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2205/102 ,  C09J2423/00 ,  C09J2423/046 ,  C09J2423/106 ,  C09J2433/00

Abstract: This invention provides a surface protection sheet that allows for easy application to an adherend surface with good removability. The surface protection sheet provided by this invention comprises a PSA layer and a support substrate supporting the PSA layer. The surface protection sheet has a peel strength (SA) after adhered to a stainless steel plate and stored at 23° C. for 30 minutes, and a peel strength (SB) after adhered on a stainless steel plate and stored at 70° C. for 168 hours, at a peel strength ratio (SB/SA) of 5 or less. The surface protection sheet has a peel strength to itself of 5 N/25 mm or less when the PSA layer is adhered to itself and peeled apart after one minute.

Abstract translation: 本发明提供了一种表面保护片，其允许容易地应用于具有良好可移除性的被粘物表面。 本发明提供的表面保护片包括粘合剂层和支撑粘合剂层的支撑基底。 表面保护片在粘附于不锈钢板上后的剥离强度（SA）在23℃下保存30分钟，剥离强度（SB）粘贴在不锈钢板上并在70℃下保存。 168小时，剥离强度比（SB / SA）为5以下。 当PSA层粘附到自身并在1分钟后剥离时，表面保护片的剥离强度本身为5N / 25mm或更小。

公开(公告)号：US20160264825A1

公开(公告)日：2016-09-15

申请号：US15032131

申请日：2014-10-01

Applicant: NITTO DENKO CORPORATION

Inventor： Natsuki UKEI ,  Izumi NISHIMURA ,  Chie MATSUMOTO ,  Mika OKADA

IPC: C09J7/02

CPC classification number: C09J7/38 ,  C08K3/22 ,  C08K2003/2241 ,  C08L23/0815 ,  C09J7/22 ,  C09J7/243 ,  C09J123/12 ,  C09J133/08 ,  C09J2201/122 ,  C09J2201/606 ,  C09J2205/106 ,  C09J2423/006 ,  C09J2423/046 ,  C09J2423/106 ,  C09J2433/00 ,  C08F2220/1858 ,  C08F2220/1825 ,  C08F220/06 ,  C08F2216/1475

Abstract: Provided are a surface protection sheet with excellent weatherability, good anti-residue properties and low-contaminating properties and a water-dispersed PSA composition for surface protection sheets. The surface protection sheet provided by this invention comprises a PSA layer and a support substrate. The PSA layer is formed from a water-dispersed PSA composition comprising an acrylic polymer and a crosslinking agent. The acrylic polymer is obtained by emulsion polymerization of a starting monomer mixture comprising 50 to 99.9 wt % C1-20alkyl (meth)acrylate and 0.1 to 5 wt. % carboxy group-containing monomer. The crosslinking agent comprises one, two or more species selected from a group consisting of oxazoline-based crosslinking agents, isocyanate-based crosslinking agents and epoxy-based crosslinking agents. The support substrate comprises 50% by weight or more polyolefin resin and 5 to 30% by weight inorganic powder.

Abstract translation: 提供具有优异的耐候性，良好的抗残渣性和低污染性的表面保护片，以及​​用于表面保护片的水分散型PSA组合物。 本发明提供的表面保护片包括粘合剂层和支撑基底。 PSA层由包含丙烯酸类聚合物和交联剂的水分散型粘合剂组合物形成。 丙烯酸类聚合物通过包含50-99.9重量％（甲基）丙烯酸C 1-20烷基酯和0.1至5重量％的（甲基）丙烯酸酯的起始单体混合物的乳液聚合而获得。 ％含羧基单体。 交联剂包含选自基于恶唑啉的交联剂，异氰酸酯基交联剂和环氧基交联剂中的一种，两种或更多种。 支撑基材包含50重量％以上的聚烯烃树脂和5〜30重量％的无机粉末。