公开(公告)号：EP2172528A1

公开(公告)日：2010-04-07

申请号：EP09171214.1

申请日：2009-09-24

申请人： NITTO DENKO CORPORATION

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J7/04

CPC分类号： C09J7/21 ,  C09J7/38 ,  C09J2201/128 ,  C09J2201/606 ,  Y10T442/2754 ,  Y10T442/60

摘要： A method of producing a double-sided pressure-sensitive adhesive (PSA) sheet having PSA layers on both sides of a nonwoven fabric substrate is provided. This method includes the steps of: preparing an emulsion-type PSA composition that satisfies both of the following conditions: a viscosity at 30°C of 0.1 to 3 Pa · s and a solid content of 50 to 70 mass%. Also included is a step of forming a PSA layer (for example, a second PSA layer) by directly coating at least one side (for example, the second side) of the nonwoven fabric this PSA composition.

摘要翻译： 提供了一种在无纺布基材的两面上制造具有PSA层的双面粘合剂（PSA）片材的方法。 该方法包括以下步骤：制备满足以下两个条件的乳液型PSA组合物：30℃下的粘度为0.1〜3Pa·s，固体成分为50〜70质量％。 还包括通过直接涂布该PSA组合物的无纺布的至少一面（例如第二面）形成粘合剂层（例如第二粘合剂层）的步骤。

公开(公告)号：EP2172528B1

公开(公告)日：2013-01-30

申请号：EP09171214.1

申请日：2009-09-24

申请人： NITTO DENKO CORPORATION

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J7/04

CPC分类号： C09J7/21 ,  C09J7/38 ,  C09J2201/128 ,  C09J2201/606 ,  Y10T442/2754 ,  Y10T442/60

摘要： A method of producing a double-sided pressure-sensitive adhesive (PSA) sheet having PSA layers on both sides of a nonwoven fabric substrate is provided. This method includes the steps of: preparing an emulsion-type PSA composition that satisfies both of the following conditions: a viscosity at 30°C of 0.1 to 3 Pa · s and a solid content of 50 to 70 mass%. Also included is a step of forming a PSA layer (for example, a second PSA layer) by directly coating at least one side (for example, the second side) of the nonwoven fabric this PSA composition.

公开(公告)号：EP2108685A1

公开(公告)日：2009-10-14

申请号：EP09004774.7

申请日：2009-03-31

申请人： Nitto Denko Corporation

发明人： Yagura, Kazuyuki ,  Naito, Tomonari ,  Ikeya, Mami ,  Takahashi, Akiko

IPC分类号： C09J7/02 ,  C09J133/04

CPC分类号： C09J133/02 ,  C08L2312/00 ,  C09J7/385 ,  C09J2201/622

摘要： Provided is a PSA sheet with low toluene and total volatile organic compound (TVOC) emissions as well as low unpleasant odor level felt by users. The PSA sheet comprises a PSA layer formed of a PSA composition comprising an acrylic polymer emulsion and a tackifier resin emulsion; the toluene and TVOC emissions are at most 20 µg and at most 150 µg, respectively; in a sensory test, 90% of participants evaluate that the unpleasantness of odors emitted from the PSA sheet is less than that of toluene at a prescribed concentration.

摘要翻译： 提供了一种具有低甲苯和总挥发性有机化合物（TVOC）排放以及用户感觉到的令人不快的气味等级的粘合片。 粘合片包括由包含丙烯酸类聚合物乳液和增粘树脂乳液的粘合剂组合物形成的粘合剂层; 甲苯和TVOC排放量最多为20μg，最多为150μg; 在感官测试中，90％的参与者评估了从PSA片排出的气味的不愉快度低于规定浓度的甲苯的不愉快度。

公开(公告)号：EP1887062A1

公开(公告)日：2008-02-13

申请号：EP07015014.9

申请日：2007-07-31

申请人： NITTO DENKO CORPORATION

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J133/08 ,  C09J133/10

CPC分类号： C09J133/14 ,  C08K5/29 ,  C08L2312/00 ,  C08L2666/28

摘要： There provided a pressure-sensitive adhesive (PSA) composition constituting a PSA layer, which may exhibit a plurality of properties in a well-balanced manner, and a PSA sheet including the PSA layer. The composition is an aqueous PSA composition in which an acrylic polymer serves as a main component and the acrylic polymer is dispersed in water, and contains: A) acrylic polymer obtained by polymerizing a monomer raw material including alkyl (meth)acrylate as a main monomer, a first functional monomer having a first functional group to react with a hydrazino group, and a second functional monomer having a second functional group to react with a carbodiimide group; B) a hydrazine-based crosslinking agent; and C) a carbodiimide-based crosslinking agent.

摘要翻译： 提供了构成粘合剂层的压敏粘合剂（PSA）组合物，其可以以良好平衡的方式显示多种性质，以及包含PSA层的粘合片。 该组合物是丙烯酸类聚合物作为主要成分并且丙烯酸类聚合物分散在水中的含水粘合剂组合物，并且包含：A）通过聚合包含（甲基）丙烯酸烷基酯作为主要单体的单体原料而获得的丙烯酸类聚合物 具有与肼基反应的第一官能团的第一官能单体和具有与碳二亚胺基反应的第二官能团的第二官能单体; B）肼类交联剂; 和C）碳二亚胺基交联剂。

公开(公告)号：EP2062955B2

公开(公告)日：2018-10-24

申请号：EP08019702.3

申请日：2008-11-11

申请人： Nitto Denko Corporation

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J133/00

CPC分类号： C09J133/02 ,  Y10T428/249983 ,  Y10T428/249985 ,  Y10T428/249991 ,  Y10T428/28 ,  Y10T428/2852 ,  Y10T428/2891 ,  Y10T428/31663 ,  Y10T428/31844 ,  Y10T428/31855 ,  Y10T428/31935

摘要： Provided are a pressure-sensitive adhesive (PSA) sheet having excellent foam repulsion resistance and an aqueous PSA composition suitable for preparing this sheet. The composition primarily comprises an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl (meth)acrylate as a main monomer and both acrylic acid and methacrylic acid. The acrylic polymer preferably has a weight average molecular weight of 65 × 10 4 to 100 × 10 4 . The starting monomer material is preferred to further contain a silanol-forming monomer and polymerized without the silanol-forming monomer to produce a polymer having a gel fraction of 7 to 17 mass%. The post-crosslink PSA preferably has a gel fraction of 20 to 55 mass%.

公开(公告)号：EP2053110B1

公开(公告)日：2017-02-01

申请号：EP08018509.3

申请日：2008-10-22

申请人： Nitto Denko Corporation

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J7/04

CPC分类号： C09J7/04 ,  C09J7/21 ,  C09J7/38 ,  C09J2201/128 ,  C09J2201/622 ,  C09J2400/263 ,  C09J2401/006 ,  C09J2433/00 ,  C09J2497/006 ,  Y10T442/2049

摘要： Provided are a double-sided PSA sheet comprising a PSA layer formed by directly applying an aqueous dispersion-type PSA composition to a non-woven fabric substrate, wherein the layer has a highly smooth surface; and a method for producing the same. In this method, an aqueous dispersion-type PSA composition is applied to at least a first side of the non-woven fabric substrate and the composition is allowed to dry to form a PSA layer. A non-woven fabric of 15 µm to 70 µm in thickness, 0.3 to 0.6 g/cm 3 in bulk density, and 0.7 sec to 2 sec in air resistance (Gurley) when measured for 8 layers the non-woven fabric substrate is used as the non-woven fabric substrate.

公开(公告)号：EP2062954A1

公开(公告)日：2009-05-27

申请号：EP08019701.5

申请日：2008-11-11

申请人： Nitto Denko Corporation

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J133/00

CPC分类号： C09J143/04 ,  C09J2201/606

摘要： The present invention provides an aqueous pressure-sensitive adhesive (PSA) composition suitable for a PSA sheet that exhibits high levels of adhesiveness, high-temperature cohesive strength and edge peel resistance in a good balance and for preparation of the same. The composition is composed primarily of an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl (meth)acrylate as a main monomer and a silanol-forming monomer. The Mw of the polymer is 65 × 10 4 to 100 × 10 4 . The starting monomer material without the silanol-forming monomer are polymerized to produce a polymer having a gel fraction of 7 to 17 mass%. The composition gives a post-crosslink PSA having a gel fraction of 20 to 55 mass%.

摘要翻译： 本发明提供一种适用于粘合性良好，高温凝聚力及耐剥离性均衡性优异且制造方面良好的粘合片的水性粘合剂（PSA）组合物。 该组合物主要由通过聚合含有作为主要单体的（甲基）丙烯酸烷基酯和硅烷醇形成单体的起始单体材料获得的丙烯酸类聚合物组成。 聚合物的Mw为65×10 4〜100×10 4。将不含硅烷醇形成性单体的原料单体聚合，制造凝胶率为7〜17质量％的聚合物。 该组合物得到凝胶分数为20-55质量％的后交联PSA。

公开(公告)号：EP1930387B1

公开(公告)日：2011-08-03

申请号：EP07023694.8

申请日：2007-12-06

申请人： NITTO DENKO CORPORATION

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J7/04

CPC分类号： C09J7/21 ,  C09J7/38 ,  C09J2400/263 ,  C09J2433/00 ,  Y10T428/24959 ,  Y10T428/28 ,  Y10T428/31855 ,  Y10T428/31938

摘要： A method is provided for producing a double-sided pressure-sensitive adhesive (PSA) sheet of a nonwoven fabric substrate, whereby the inherent performance of the PSA is more fully exploited using an aqueous dispersion-type PSA composition. This method comprises preparing an aqueous dispersion-type PSA composition and a nonwoven fabric substrate serving as a support. The method also comprises forming PSA layers which impregnate the substrate and which are obtained by drying the composition. These PSA layers impregnate the substrate so that the area of gaps observed in a vertical cross-section perpendicular to the machine direction of the substrate is about 500 µm 2 /400 µm or less.

公开(公告)号：EP2062955B1

公开(公告)日：2010-06-09

申请号：EP08019702.3

申请日：2008-11-11

申请人： Nitto Denko Corporation

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J133/00

CPC分类号： C09J133/02 ,  Y10T428/249983 ,  Y10T428/249985 ,  Y10T428/249991 ,  Y10T428/28 ,  Y10T428/2852 ,  Y10T428/2891 ,  Y10T428/31663 ,  Y10T428/31844 ,  Y10T428/31855 ,  Y10T428/31935

摘要： Provided are a pressure-sensitive adhesive (PSA) sheet having excellent foam repulsion resistance and an aqueous PSA composition suitable for preparing this sheet. The composition primarily comprises an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl (meth)acrylate as a main monomer and both acrylic acid and methacrylic acid. The acrylic polymer preferably has a weight average molecular weight of 65 × 10 4 to 100 × 10 4 . The starting monomer material is preferred to further contain a silanol-forming monomer and polymerized without the silanol-forming monomer to produce a polymer having a gel fraction of 7 to 17 mass%. The post-crosslink PSA preferably has a gel fraction of 20 to 55 mass%.

公开(公告)号：EP2062955A1

公开(公告)日：2009-05-27

申请号：EP08019702.3

申请日：2008-11-11

申请人： Nitto Denko Corporation

发明人： Takahashi, Akiko ,  Ikeya, Mami

IPC分类号： C09J133/00

CPC分类号： C09J133/02 ,  Y10T428/249983 ,  Y10T428/249985 ,  Y10T428/249991 ,  Y10T428/28 ,  Y10T428/2852 ,  Y10T428/2891 ,  Y10T428/31663 ,  Y10T428/31844 ,  Y10T428/31855 ,  Y10T428/31935

摘要： Provided are a pressure-sensitive adhesive (PSA) sheet having excellent foam repulsion resistance and an aqueous PSA composition suitable for preparing this sheet. The composition primarily comprises an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl (meth)acrylate as a main monomer and both acrylic acid and methacrylic acid. The acrylic polymer preferably has a weight average molecular weight of 65 × 10 4 to 100 × 10 4 . The starting monomer material is preferred to further contain a silanol-forming monomer and polymerized without the silanol-forming monomer to produce a polymer having a gel fraction of 7 to 17 mass%. The post-crosslink PSA preferably has a gel fraction of 20 to 55 mass%.

摘要翻译： 提供具有优异的耐斥斥性的压敏粘合剂（PSA）片和适于制备该片的水性粘合剂组合物。 组合物主要包含通过聚合含有（甲基）丙烯酸烷基酯作为主要单体的起始单体材料和丙烯酸和甲基丙烯酸两者而获得的丙烯酸类聚合物。 丙烯酸类聚合物的重均分子量优选为65×10 4〜100×10 4。 优选起始单体材料进一步含有形成硅烷醇的单体，并在没有形成硅烷醇的单体的情况下聚合，生成凝胶分数为7〜17质量％的聚合物。 后交联PSA优选具有20〜55质量％的凝胶分数。