公开(公告)号：US20130084417A1

公开(公告)日：2013-04-04

申请号：US13703512

申请日：2011-06-08

Applicant: Kouhei Takeda ,  Keiji Hayashi

Inventor： Kouhei Takeda ,  Keiji Hayashi

IPC: C09J7/02

CPC classification number: C09J7/387 ,  B32B7/12 ,  B32B27/30 ,  C09J7/20 ,  C09J153/00 ,  Y10T428/1452 ,  Y10T428/1476

Abstract: Provided is a PSA sheet formed by co-extrusion of a PSA layer and a layer (release layer) releasable from the PSA layer, wherein the PSA layer comprises an acrylic polymer as its base polymer. A PSA sheet 10 comprises a middle layer 12 that comprises an acrylic block copolymer as its base polymer and is adhesive at 23° C., a release layer 14 that is laminated on a first face 12A of the middle layer 12 and is releasable from the middle layer, and a non-releasing layer 16 that is laminated on a second face 12B of the middle layer 12 and is non-releasable relative to the middle layer. The non-releasing layer 16 may be adhesive or non-adhesive at 23° C.

Abstract translation: 提供一种粘合片，其通过粘合层的共挤出和从PSA层剥离的层（剥离层）而形成，其中，粘合剂层包含丙烯酸类聚合物作为其基础聚合物。 粘合片10包括中间层12，其包含丙烯酸类嵌段共聚物作为其基础聚合物并且在23℃下是粘合剂，层压在中间层12的第一面12A上的剥离层14， 中间层和层压在中间层12的第二面12B上并且相对于中间层不可释放的非释放层16。 非释放层16可以在23℃粘合或不粘合。

公开(公告)号：US20130084418A1

公开(公告)日：2013-04-04

申请号：US13703542

申请日：2011-06-08

Applicant: Kouhei Takeda ,  Keiji Hayashi

Inventor： Kouhei Takeda ,  Keiji Hayashi

IPC: C09J7/02 ,  C08L33/12

CPC classification number: C08L33/12 ,  B32B7/12 ,  B32B27/30 ,  C09J7/385 ,  Y10T428/1452

Abstract: Provided is a PSA sheet formed by co-extrusion of a PSA layer and layers (release layers) releasable from the PSA layer. A PSA sheet 10 comprising a PSA layer 12 comprising an acrylic block copolymer as its base polymer, an RA layer 14 laminated on a first face 12A of the PSA layer 12, an RB layer 16 laminated on a second face 12B of the PSA layer 12, with these layers having been co-extruded. Both the RA layer 14 and the RB layer 16 are releasable from the PSA layer 12.

Abstract translation: 提供了通过粘合剂层的共挤出和可从PSA层剥离的层（剥离层）形成的粘合片。 包含粘合剂层12的粘合片10，其包含丙烯酸嵌段共聚物作为其基础聚合物，层压在粘合剂层12的第一面12A上的RA层14，层压在粘合剂层12的第二面12B上的RB层16 ，这些层已经共挤出。 RA层14和RB层16都可从PSA层12释放。

公开(公告)号：US20110244227A1

公开(公告)日：2011-10-06

申请号：US13025379

申请日：2011-02-11

Applicant: Naoto HAYASHI ,  Shinsuke IKISHIMA ,  Kooki OOYAMA ,  Keiji HAYASHI ,  Shou UCHIDA ,  Kouhei TAKEDA ,  Ryohei SAWAZAKI

Inventor： Naoto HAYASHI ,  Shinsuke IKISHIMA ,  Kooki OOYAMA ,  Keiji HAYASHI ,  Shou UCHIDA ,  Kouhei TAKEDA ,  Ryohei SAWAZAKI

IPC: B32B7/12 ,  B29C47/06

CPC classification number: B32B7/12 ,  B32B25/08 ,  B32B25/16 ,  B32B27/08 ,  B32B27/28 ,  B32B27/302 ,  B32B27/304 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  B32B2274/00 ,  B32B2307/538 ,  B32B2307/712 ,  B32B2307/732 ,  B32B2405/00 ,  C09J7/381 ,  C09J2201/36 ,  C09J2453/00 ,  Y10T428/2848

Abstract: Provided is the following novel pressure-sensitive adhesive tape that expresses a sufficiently strong adhesion for an adherend. The adhesion of the novel pressure-sensitive adhesive tape in its production process is controlled so as to be moderately weak. Accordingly, a peeling failure and the occurrence of a wrinkle are sufficiently suppressed, and hence stable product supply is performed. The pressure-sensitive adhesive tape of the present invention includes at least three layers including: a base material layer (A); a first pressure-sensitive adhesive layer (B1); and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the base material layer (A) contains a thermoplastic resin; each of the first pressure-sensitive adhesive layer (B1) and the second pressure-sensitive adhesive layer (B2) contains a tackifier; a ratio R1/R2 of a content (R1) of the tackifier in the first pressure-sensitive adhesive layer (B1) to a content (R2) of the tackifier in the second pressure-sensitive adhesive layer (B2) is 0.90 to 1.10; and the content of the tackifier in the second pressure-sensitive adhesive layer (B2) is 5 wt % or more.

Abstract translation: 提供了对于被粘物表现出足够强的粘附性的以下新型压敏粘合带。 新型压敏粘合带在其生产过程中的粘合力被控制为适度弱。 因此，能够充分抑制剥离破坏和褶皱的发生，从而进行稳定的产品供给。 本发明的压敏粘合带包括至少三层，包括：基材层（A）; 第一压敏粘合剂层（B1）; 和第二压敏粘合剂层（B2），其中：基材层（A）含有热塑性树脂; 第一压敏粘合剂层（B1）和第二压敏粘合剂层（B2）中的每一个含有增粘剂; 第一粘合剂层（B1）中的增粘剂的含量（R1）与第二粘合剂层（B2）中的增粘剂的含量（R2）的比率R1 / R2为0.90〜1.10; 并且第二压敏粘合剂层（B2）中的增粘剂的含量为5重量％以上。

公开(公告)号：US20110236653A1

公开(公告)日：2011-09-29

申请号：US13028278

申请日：2011-02-16

Applicant: Keiji HAYASHI ,  Ikkou HANAKI ,  Shou UCHIDA ,  Jiro YAMATO ,  Kouhei TAKEDA ,  Ryohei SAWAZAKI

Inventor： Keiji HAYASHI ,  Ikkou HANAKI ,  Shou UCHIDA ,  Jiro YAMATO ,  Kouhei TAKEDA ,  Ryohei SAWAZAKI

IPC: B32B3/10

CPC classification number: C08L23/06 ,  C08G18/6229 ,  C08K7/16 ,  C08L33/12 ,  C08L2205/22 ,  C09J7/243 ,  C09J2205/106 ,  C09J2425/006 ,  C09J2433/006 ,  Y10T428/24893

Abstract: Provided is the following base material for a surface protective sheet. The slipping property of the back surface of the sheet is moderately excellent, and scratches in the surface of an adherend laminated to contact the back surface of the sheet can be suppressed. Also provided is a surface protective sheet containing such base material for a surface protective sheet. The base material for a surface protective sheet of the present invention is a base material for a surface protective sheet including a base material layer (A), in which: at least one surface of the base material for a surface protective sheet is the surface of the base material layer (A); the base material layer (A) contains a polyolefin-based resin as a main component; the base material layer (A) contains polymer fine particles having an average particle diameter of 3 to 20 μm at a content of 0.1 to 20 wt % with respect to 100 parts by weight of the polyolefin-based resin; the surface of the base material layer (A) has a surface roughness Ra of 0.15 to 0.60 μm; and the surface of the base material layer (A) has a coefficient of dynamic friction (I) with respect to an aluminum plate of 0.35 to 1.00.

Abstract translation: 提供以下用于表面保护片的基材。 片材背面的滑动特性适度地优异，可以抑制层叠以贴合在片材的背面上的被粘物表面的划痕。 还提供了包含用于表面保护片的这种基材的表面保护片。 本发明的表面保护片用基材是具有基材层（A）的表面保护片用基材，其中：表面保护片用基材的至少一面为 基材层（A）; 基材层（A）含有聚烯烃类树脂作为主要成分; 相对于100重量份的聚烯烃类树脂，基材层（A）含有平均粒径为3〜20μm的聚合物微粒，含量为0.1〜20重量％ 基材层（A）的表面的表面粗糙度Ra为0.15〜0.60μm; 并且基材层（A）的表面相对于铝板的动摩擦系数（I）为0.35〜1.00。

公开(公告)号：US20110033662A1

公开(公告)日：2011-02-10

申请号：US12836347

申请日：2010-07-14

Applicant: Shinsuke IKISHIMA ,  Naoto Hayashi ,  Kooki Ooyama ,  Keiji Hayashi ,  Shou Uchida ,  Kouhei Takeda ,  Ikkou Hanaki

Inventor： Shinsuke IKISHIMA ,  Naoto Hayashi ,  Kooki Ooyama ,  Keiji Hayashi ,  Shou Uchida ,  Kouhei Takeda ,  Ikkou Hanaki

IPC: B32B3/10

CPC classification number: B32B27/32 ,  B32B25/042 ,  B32B25/08 ,  B32B27/08 ,  B32B27/20 ,  B32B27/304 ,  B32B27/306 ,  B32B27/308 ,  B32B27/36 ,  B32B27/365 ,  B32B27/40 ,  B32B2250/24 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/40 ,  B32B2307/412 ,  B32B2307/538 ,  B32B2307/748 ,  B32B2405/00 ,  C09J7/29 ,  C09J2201/162 ,  C09J2423/006 ,  Y10T428/24355

Abstract: Provided are a laminated film and a pressure-sensitive adhesive tape each of which is adjusted so as to be capable of achieving compatibility between low haze property excellent in transparency and such large surface roughness that foreign matter such as a fish eye is hardly observed without fluctuations in mechanical properties of the entire laminated film or pressure-sensitive adhesive tape. Also provided is such a pressure-sensitive adhesive tape as described below capable of protecting the uneven surface of a member having unevenness on its surface. The pressure-sensitive adhesive tape brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the member. In addition, even upon deformation of the member protected with the pressure-sensitive adhesive tape by, for example, lamination or continuous winding, the uneven shape does not deform and a base material layer in the pressure-sensitive adhesive tape is not damaged, and further, the pressure-sensitive adhesive tape is adjusted so as to be capable of achieving compatibility between low haze property excellent in transparency and such large surface roughness that foreign matter such as a fish eye is hardly observed without fluctuations in mechanical properties of the entire pressure-sensitive adhesive tape. Also provided is such a pressure-sensitive adhesive tape as described below. When a prism sheet having multiple triangle pole-shaped prisms fixed on its surface is used as the above-mentioned member having unevenness on its surface, the pressure-sensitive adhesive tape functions as a surface protective film capable of effectively protecting a lens surface, and brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the prism sheet. In addition, when the prism sheet protected with the pressure-sensitive adhesive tape is brought into a state such as a laminated state or a continuously wound state, the emergence of irregularity (indentation) in the external appearance of the prism sheet to which the pressure-sensitive adhesive tape is attached can be suppressed. A laminated film of the present invention is a laminated film including a base material layer, a roughness-expressing layer, and a fine unevenness-erasing layer in the stated order, in which: the base material layer contains a thermoplastic resin; the roughness-expressing layer contains at least one kind of a resin component (A) selected from polyethylenes, ethylene-vinyl acetate copolymers, propylene-based polymers, and olefin-based thermoplastic elastomers; the fine unevenness-erasing layer contains a thermoplastic resin (B); an arithmetic average surface roughness Ra on the surface on the side of the fine unevenness-erasing layer is 1.0 μm to 3.0 μm; and the haze value of the laminated film is 30% or less.