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    Porous article and process for producing porous article
    2.
    发明授权
    Porous article and process for producing porous article 有权
    多孔制品和多孔制品生产工艺

    公开(公告)号：US06387969B1

    公开(公告)日：2002-05-14

    申请号：US09655441

    申请日：2000-09-05

    申请人： Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka ,  Tomohiro Taruno ,  Mitsuhiro Kanada

    发明人： Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka ,  Tomohiro Taruno ,  Mitsuhiro Kanada

    IPC分类号： C08J926

    CPC分类号： H05K3/0011 ,  C08J9/26 ,  C08J2201/042 ,  C08J2201/046 ,  C08J2203/08 ,  H05K2201/0116 ,  H05K2203/0773 ,  H05K2203/0783 ,  H05K2203/083 ,  Y02P20/544

    摘要： A porous article having excellent heat resistance, a finely cellular structure, and a low dielectric constant; and a process for producing the porous article which comprises subjecting a polymer composition having a micro-domain structure comprising a continuous polymer phase and dispersed therein a discontinuous phase having an average diameter smaller than 10 &mgr;m to a treatment for removing the ingredient constituting the discontinuous phase by at least one operation selected from vaporization and decomposition and by an extraction operation to thereby make the polymer porous. The ingredient constituting the discontinuous phase has a weight average molecular weight of, e.g., 10,000 or lower. Liquefied carbon dioxide, supercritical carbon dioxide, or the like can be used as an extraction solvent for the ingredient constituting the discontinuous phase.

    摘要翻译： 具有优异的耐热性，细孔结构和低介电常数的多孔制品; 以及一种制造多孔制品的方法，该方法包括使包含连续聚合物相的微结构结构的聚合物组合物分散在平均直径小于10μm的不连续相中，以除去构成不连续相的成分 通过选自蒸发和分解的至少一种操作和通过萃取操作，从而使聚合物多孔。 构成不连续相的成分的重均分子量例如为10,000以下。 可以使用液化二氧化碳，超临界二氧化碳等作为构成不连续相的成分的提取溶剂。

    Acrylic pressure-sensitive adhesive composition and process for producing the same
    5.
    发明授权
    Acrylic pressure-sensitive adhesive composition and process for producing the same 有权
    丙烯酸类压敏粘合剂组合物及其制造方法

    公开(公告)号：US06376633B1

    公开(公告)日：2002-04-23

    申请号：US09472870

    申请日：1999-12-28

    申请人： Takayuki Yamamoto ,  Tomohiro Taruno ,  Tomohide Bamba ,  Mitsuhiro Kanada ,  Yoshihiro Minamizaki

    发明人： Takayuki Yamamoto ,  Tomohiro Taruno ,  Tomohide Bamba ,  Mitsuhiro Kanada ,  Yoshihiro Minamizaki

    IPC分类号： C08F12018

    CPC分类号： C08F220/18 ,  C08F20/12

    摘要： An acrylic pressure-sensitive adhesive composition which contains a high molecular weight polymer, is excellent in cohesive force and adhesive strength and can be prepared without using an organic solvent. The acrylic pressure-sensitive adhesive composition is produced by a process which comprises radical-polymerizing monomers containing an alkyl (meth)acrylate using carbon dioxide as a diluent to thereby prepare a pressure-sensitive adhesive composition containing an acrylic polymer having a weight average molecular weight of 400,000 or more. The polymerization pressure ranges from, for example, about 5.7 to 40 MPa, AND the polymerization temperature ranges from, for example, about 20 to 100° C.

    摘要翻译： 含有高分子量聚合物的丙烯酸类压敏粘合剂组合物的内聚力和粘合强度优异，可以在不使用有机溶剂的情况下制备。丙烯酸类压敏粘合剂组合物通过包括自由基聚合 使用二氧化碳作为稀释剂的含有（甲基）丙烯酸烷基酯的单体，由此制备含有重均分子量为40万以上的丙烯酸类聚合物的压敏粘合剂组合物。 聚合压力范围为例如约5.7〜40MPa，聚合温度为例如约20〜100℃。

    Method for producing foamed pressure-sensitive adhesive tape or sheet
    6.
    发明授权
    Method for producing foamed pressure-sensitive adhesive tape or sheet 有权
    生产泡沫压敏粘合带或片材的方法

    公开(公告)号：US06224938B1

    公开(公告)日：2001-05-01

    申请号：US09456910

    申请日：1999-12-07

    申请人： Tomohide Bamba ,  Takayuki Yamamoto ,  Tomohiro Taruno ,  Mitsuhiro Kanada ,  Yoshihiro Minamizaki

    发明人： Tomohide Bamba ,  Takayuki Yamamoto ,  Tomohiro Taruno ,  Mitsuhiro Kanada ,  Yoshihiro Minamizaki

    IPC分类号： B05D100

    CPC分类号： C09J7/385 ,  Y02P20/544

    摘要： A method and apparatus for producing a foamed pressure-sensitive adhesive tape or sheet having a fine cell structure with a good production efficiency without through complicated steps are provided. The method comprises subjecting a mixture containing monomers of a polymer constituting a foamed pressure-sensitive adhesive layer to polymerization in an inert fluid in a supercritical state or a liquid state under pressure, and ejecting the polymerized composition obtained on a substrate under a pressure lower than the pressure in the polymerization to form a foamed pressure-sensitive adhesive layer applied on the substrate. The apparatus comprises a pressure vessel for polymerizing monomers of a polymer constituting a foamed pressure-sensitive adhesive layer under pressure, an inert fluid supplying means for supplying an inert fluid in a supercritical state or a liquid state to the pressure vessel, and an ejection means for ejecting the polymerized composition obtained by polymerizing the monomers.

    摘要翻译： 提供了一种不经过复杂步骤生产具有良好生产效率的细胞结构的泡沫压敏粘合带或片材的方法和装置。该方法包括使构成发泡压敏粘合剂的聚合物的混合物 在超临界状态或压力状态的惰性流体中进行聚合，并在低于聚合反应压力的压力下喷射在基材上得到的聚合组合物，形成施加在基材上的发泡压敏粘合剂层 该装置包括用于在压力下聚合构成发泡压敏粘合剂层的聚合物的单体的压力容器，用于将超临界状态或液态的惰性流体供应到压力容器的惰性流体供给装置，以及喷射 用于喷射通过聚合得到的聚合组合物的方法 单体。

    Method of removing low molecular weight substance from polyimide precursor or polyimide containing low molecular weight substance
    9.
    发明授权
    Method of removing low molecular weight substance from polyimide precursor or polyimide containing low molecular weight substance 有权
    从含有低分子量物质的聚酰亚胺前体或聚酰亚胺中除去低分子量物质的方法

    公开(公告)号：US06451965B1

    公开(公告)日：2002-09-17

    申请号：US09987050

    申请日：2001-11-13

    申请人： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

    发明人： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

    IPC分类号： C08F600

    CPC分类号： H05K1/0346 ,  C08J9/26 ,  C08J2201/032 ,  C08J2201/042 ,  C08J2203/08 ,  C08J2379/08 ,  Y02P20/544

    摘要： A method of efficiently removing a low molecular weight substance from a polyimide precursor or polyimide in which the low molecular weight substance is dispersed as micro-domains, without using a large amount of an organic solvent. The method of removing a low molecular weight substance comprises subjecting either a polymer composition having a micro-domain structure made up of a continuous phase comprising a polyimide precursor and, dispersed therein, a discontinuous phase comprising a low molecular weight substance or a polyimide composition obtained from the polymer composition by converting the polyimide precursor into a polyimide to extraction with a combination of supercritical carbon dioxide and a co-solvent to thereby remove the low molecular weight substance. The co-solvent is preferably an aprotic polar solvent, more preferably a nitrogen compound solvent or a sulfur compound solvent.

    摘要翻译： 从低分子量物质作为微区域分散的聚酰亚胺前体或聚酰亚胺有效地除去低分子量物质的方法，而不使用大量的有机溶剂。 除去低分子量物质的方法包括使具有由包含聚酰亚胺前体的连续相构成的微区结构的聚合物组合物和分散在其中的包含低分子量物质的不连续相或获得的聚酰亚胺组合物 通过将聚酰亚胺前体转变为聚酰亚胺，通过超临界二氧化碳和共溶剂的组合提取，从而从聚合物组合物中除去低分子量物质。 共溶剂优选为非质子极性溶剂，更优选为氮化合物溶剂或硫化合物溶剂。

    Process for producing porous polyimide and porous polyimide
    10.
    发明授权
    Process for producing porous polyimide and porous polyimide 有权
    生产多孔聚酰亚胺和多孔聚酰亚胺的方法

    公开(公告)号：US06372808B1

    公开(公告)日：2002-04-16

    申请号：US09984416

    申请日：2001-10-30

    申请人： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

    发明人： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

    IPC分类号： C08J926

    CPC分类号： C08J9/28 ,  C08J2201/0464 ,  C08J2379/08 ,  H05K1/0346 ,  Y02P20/544

    摘要： A porous polyimide having a finely cellular structure and having a low dielectric constant and heat resistance. The porous polyimide can be produced by a process comprising adding a dispersible compound to a polyimide precursor to form a micro-domain structure in which the dispersible compound is dispersed in the polymer so as to have a size smaller than 10 &mgr;m and then removing the dispersible compound by extraction with supercritical carbon dioxide to thereby make the precursor porous, wherein the interaction parameter &khgr;AB between the polyimide precursor A and the dispersible compound B is larger than 3. This porous polyimide has an average cell diameter smaller than 5 &mgr;m and a dielectric constant of 3 or lower.

    摘要翻译： 具有微细结构并具有低介电常数和耐热性的多孔聚酰亚胺。 多孔聚酰亚胺可以通过包括向聚酰亚胺前体中加入可分散化合物以形成其中可分散化合物分散在聚合物中以使其尺寸小于10μm的微畴结构，然后除去可分散的 通过用超临界二氧化碳萃取，从而使前体多孔化，其中聚酰亚胺前体A和可分散化合物B之间的相互作用参数和AB均大于3.该多孔聚酰亚胺的平均泡孔直径小于5μm， 介电常数为3以下。