REMOVABLE WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET
    1.
    发明申请
    REMOVABLE WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET 审中-公开
    可拆卸的水分散型丙烯酸压敏粘合剂组合物和压敏胶粘剂

    公开(公告)号:US20130034730A1

    公开(公告)日:2013-02-07

    申请号:US13641368

    申请日:2011-04-12

    IPC分类号: C09J133/08 C09J7/02 C08K5/06

    摘要: Provided is a water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a removable pressure-sensitive adhesive layer which has satisfactory resistance to increase in adhesive strength and a good appearance and less causes staining on an adherend. The removable water-dispersible acrylic pressure-sensitive adhesive composition includes an acrylic emulsion polymer (A) formed from constitutive monomers essentially including 70 to 99.5 percent by weight of a (meth)acrylic alkyl ester and 0.5 to 10 percent by weight of a carboxyl-containing unsaturated monomer based on the total amount of the constitutive monomers; a water-insoluble crosslinking agent (B); an acetylenic diol compound (C); and a specific polyether defoaming agent (D). The acetylenic diol compound (C) has an HLB of less than 13, and the polyether defoaming agent (D) has a PO in a content of from 70 to 100 percent by weight and a number-average molecular weight of from 1200 to 4000.

    摘要翻译: 提供一种能够形成可剥离的粘合剂层的水分散性丙烯酸类压敏粘合剂组合物,其具有令人满意的耐粘合强度增加和良好外观的耐受性,并且更少导致被粘物上的染色。 可拆卸的水分散性丙烯酸类压敏粘合剂组合物包括由基本单体形成的丙烯酸乳液聚合物(A),其基本上包含70-99.5重量%的(甲基)丙烯酸烷基酯和0.5至10重量%的羧基 - 基于组成单体的总量含有不饱和单体; 水不溶性交联剂(B); 炔二醇化合物(C); 和特定的聚醚消泡剂(D)。 炔属二醇化合物(C)的HLB小于13,聚醚消泡剂(D)的PO含量为70〜100重量%,数均分子量为1200〜4000。

    WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET
    3.
    发明申请
    WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET 审中-公开
    水分散型丙烯酸压敏粘合剂组合物和压敏胶粘剂

    公开(公告)号:US20130040137A1

    公开(公告)日:2013-02-14

    申请号:US13641358

    申请日:2011-04-12

    IPC分类号: C09J133/10 C09J7/02

    摘要: Provided is a water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer which is resistant to increase in adhesive strength with time, has a good appearance, and less stains an adherend. The water-dispersible acrylic pressure-sensitive adhesive composition includes an acrylic emulsion polymer; and a water-insoluble crosslinking agent having two or more carboxyl-reactive functional groups per molecule. The acrylic emulsion polymer is formed from constitutive monomers essentially including a (meth)acrylic alkyl ester (A), a carboxyl-containing unsaturated monomer (B), and at least one monomer (C) selected from methyl methacrylate, vinyl acetate, and diethylacrylamide and has a solvent-insoluble content of 70 percent by weight or more. When the acrylic pressure-sensitive adhesive composition is applied so as to have a dry thickness of 50 μm, dried at 120° C. for 2 minutes, and aged at 50° C. for 3 days to give a cross-linked acrylic pressure-sensitive adhesive film, the film has a solvent-insoluble content of 90 percent by weight or more and an elongation at break of 130% or less at 23° C.

    摘要翻译: 本发明提供能够形成耐粘附强度随时间增加的粘合剂层的水分散性丙烯酸类压敏粘合剂组合物,具有良好的外观,并且较少污染被粘物。 水分散性丙烯酸类压敏粘合剂组合物包括丙烯酸乳液聚合物; 和每分子具有两个以上羧基反应性官能团的水不溶性交联剂。 丙烯酸乳液聚合物由主要包含(甲基)丙烯酸烷基酯(A),含羧基的不饱和单体(B)和至少一种选自甲基丙烯酸甲酯,乙酸乙烯酯和二乙基丙烯酰胺的单体(C))的组成单体形成 并且具有70重量%以上的溶剂不溶成分。 当将丙烯酸类压敏粘合剂组合物施加到干燥厚度为50μm时,在120℃下干燥2分钟,并在50℃下老化3天,得到交联的丙烯酸压敏粘合剂组合物, 该粘合膜在23℃下的溶剂不溶成分为90重量%以上,断裂伸长率为130%以下。

    WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET
    4.
    发明申请
    WATER-DISPERSIBLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET 审中-公开
    水分散型丙烯酸压敏粘合剂组合物和压敏胶粘剂

    公开(公告)号:US20130029146A1

    公开(公告)日:2013-01-31

    申请号:US13641356

    申请日:2011-04-12

    IPC分类号: C09J133/08 B32B27/36

    摘要: Provided are a water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer which has excellent resistance to increase in adhesive strength and a good appearance and less causes staining; and a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive composition. The water-dispersible acrylic pressure-sensitive adhesive composition includes an acrylic emulsion polymer (A) formed from constitutive monomers essentially containing 70 to 99.5 percent by weight of a (meth)acrylic alkyl ester and 0.5 to 10 percent by weight of a carboxyl-containing unsaturated monomer; and a compound (B) represented by following Formula (I): R1O-(PO)a-(EO)b-(PO)c-R2  (I) wherein R1 and R2 each represent a linear or branched chain alkyl group or hydrogen atom; PO represents oxypropylene group; EO represents oxyethylene group; and “a,” “b,” and “c” are each a positive integer, where EO and POs are added in a block manner.

    摘要翻译: 本发明提供一种能够形成耐粘合强度提高和外观好,耐染色性差的粘合剂层的水分散性丙烯酸系粘合剂组合物。 以及具有由该粘合剂组合物形成的粘合剂层的压敏粘合片。 水分散性丙烯酸类压敏粘合剂组合物包括由基本上含有70-99.5重量%的(甲基)丙烯酸烷基酯和0.5至10重量%的含羧基的组成单体形成的丙烯酸乳液聚合物(A) 不饱和单体; 和由下式(I)表示的化合物(B):R1O-(PO)a-(EO)b-(PO)c-R2(Ⅰ)其中R1和R2各自表示直链或支链烷基或氢 原子; PO表示氧亚丙基; EO表示氧乙烯基; 和a,b和c各自为正整数,其中EO和PO以嵌段方式加入。