公开(公告)号：US20250034433A1

公开(公告)日：2025-01-30

申请号：US18710884

申请日：2022-11-17

Applicant: NITTO DENKO CORPORATION

Inventor： Kosuke MORITA ,  Yoshio NAKAGAWA ,  Tomohito HARADA

IPC: C09J7/24

Abstract: Provided is a PSA tape comprising a substrate layer formed of a polyvinyl chloride film, and a PSA layer on at least one side of the substrate layer. The substrate layer comprises polyvinyl chloride, a plasticizer, and an elastomer. The elastomer comprises at least a thermoplastic polyurethane or a thermoplastic polyester elastomer.

公开(公告)号：US20160168425A1

公开(公告)日：2016-06-16

申请号：US14909846

申请日：2014-06-23

Applicant: NITTO DENKO CORPORATION

Inventor： Eiichi IMOTO ,  Yoshio NAKAGAWA ,  Kenichi NISHIKAWA ,  Yasunori YAMAMOTO

IPC: C09J7/02

CPC classification number: C09J7/25 ,  C08G18/5015 ,  C08G18/622 ,  C09J133/08 ,  C09J175/04 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2205/114 ,  C09J2433/00 ,  C09J2475/006

Abstract: [Problem] To provide an adhesive sheet having a surface sliding property and stainproof property.[Means for solving] An adhesive sheet is one that comprises at least a substrate and an adhesive layer, a static friction coefficient of the substrate is 0.05 or more and 1.50 or less, and an absolute value of a ΔL* value of the substrate is 0.01 or more and 45.00 or less. A load at a time of 5% elongation of the substrate is preferably 1 N/cm or more and 15 N/cm or less. And a stress relaxation rate of the substrate by elongating to 10%, stopping the elongation at that state and after lapsing 600 seconds is preferably 40% or more and 100% or less.

Abstract translation: [问题]提供具有表面滑动性和防污性的粘合片。 [解决方法]粘合片是至少包含基材和粘合剂层的粘合片，基材的静摩擦系数为0.05以上且1.50以下，绝对值为 底物为0.01以上且45.00以下。 基板的5％伸长时的载荷优选为1N / cm以上且15N / cm以下。 并且通过延伸至10％，停止在该状态下和伸长600秒后的伸长率的基板的应力松弛率优选为40％以上且100％以下。

公开(公告)号：US20210198532A1

公开(公告)日：2021-07-01

申请号：US17057996

申请日：2019-05-21

Applicant: NITTO DENKO CORPORATION

Inventor： Takuma OGAWA ,  Yoshio NAKAGAWA ,  Takeshi IGARASHI ,  Kaito YAMAMOTO

IPC: C09J7/38 ,  C09J133/06

Abstract: An objective is to provide a surface protective PSA sheet that has well-balanced bonding strength for various adherends differing in polarity and a capability to suppress peeling and lifting as well as an ability to inhibit touch-up paint peeling and an increase in bonding strength with time. The surface protective PSA sheet having a PSA layer and a resin substrate supporting the PSA layer, characterized by satisfying the following conditions (a1), (a1-1) and (c1) has well-balanced bonding strength for various adherends differing in polarity and is capable of suppressing peeling and lifting and inhibiting touch-up paint peeling and an increase in boding strength with time. (a1) The PSA layer is formed from a PSA composition comprising a (meth)acrylic copolymer and a tackifier, the tackifier accounting for 1.0-30 parts by mass of the PSA composition with the (meth)acrylic copolymer being 100 parts by mass. (a1-1) The (meth)acrylic copolymer comprises 0.1-2.8% by mass functional group-containing structural unit, the structural unit including at least one species of functional groups selected from the group consisting of a carboxyl group and a salt thereof as well as a sulfo group and a salt thereof. (c1) The surface protective PSA sheet has tensile moduli of elasticity of 180-330 MPa in both MD and TD.