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    Preparation of macroreticular polymers
    41.
    发明申请
    Preparation of macroreticular polymers 失效
    大网络聚合物的制备

    公开(公告)号：US20030187080A1

    公开(公告)日：2003-10-02

    申请号：US10113311

    申请日：2002-04-01

    Inventor： Biwang Jiang ,  Garth Rockwood Parker JR.

    IPC: C08J005/20

    CPC classification number: C08J9/26 ,  C08F2/18 ,  C08F2/44 ,  C08J2201/042 ,  C08J2325/06

    Abstract: The present invention relates to a method of preparing porous macroreticular polymers comprising polymerizing one or more monoethylenically unsaturated monomers in the presence of a silicone based porogen.

    Abstract translation: 本发明涉及一种制备多孔大网络聚合物的方法，其包括在有机硅基致孔剂存在下聚合一种或多种单烯属不饱和单体。

    Method of removing low molecular weight substance from polymide precursor or polymide containing low molecular weight substance
    42.
    发明申请
    Method of removing low molecular weight substance from polymide precursor or polymide 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：US20020065390A1

    公开(公告)日：2002-05-30

    申请号：US09987050

    申请日：2001-11-13

    Applicant: NITTO DENKO CORPORATION

    Inventor： Mitsuhiro Kanada ,  Takayuki Yamamoto ,  Amane Mochizuki ,  Takahiro Fukuoka

    IPC: C08G002/00

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

    Abstract: 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.

    Abstract translation: 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。

    Photogenerated nanoporous materials
    43.
    发明授权
    Photogenerated nanoporous materials 失效
    光生纳米多孔材料

    公开(公告)号：US06380270B1

    公开(公告)日：2002-04-30

    申请号：US09671022

    申请日：2000-09-26

    Applicant: Stephen F. Yates

    Inventor： Stephen F. Yates

    IPC: C08J900

    CPC classification number: C08J9/26 ,  C08J2201/042 ,  C08J2201/046 ,  C08J2371/12

    Abstract: A composition has a polymeric network that includes a porogen and a photoinitiator. The photoinitiator produces a reactive species upon irradiation, which reacts with the porogen in a degradation reaction that degrades at least some of the porogen. A method of forming a nanoporous polymer has one step in which a plurality of polymeric strands, a photoinitiator, and a porogen are provided. In a subsequent step, at least some of the polymeric strands are crosslinked to form a polymeric network that includes the porogen and the photoinitiator, and in a further step the photoinitiator in the polymeric network is irradiated to generate a reactive species that reacts with the porogen in a degradation reaction to degrade at least some of the porogen.

    Abstract translation: 组合物具有包含致孔剂和光引发剂的聚合物网络。 光引发剂在照射时产生反应性物质，其在造孔剂中与致孔剂反应，其降解至少一部分致孔剂。 形成纳米多孔聚合物的方法具有一个步骤，其中提供多个聚合物链，光引发剂和致孔剂。 在随后的步骤中，至少一些聚合物链被交联以形成包括致孔剂和光引发剂的聚合物网络，并且在另外的步骤中，辐射聚合物网络中的光引发剂以产生与致孔剂反应的反应性物质 在降解反应中降解至少一些致孔剂。

    Low density, microcellular foams, preparation, and articles
    46.
    发明授权
    Low density, microcellular foams, preparation, and articles 失效
    低密度，微孔泡沫，制剂和制品

    公开(公告)号：US4430451A

    公开(公告)日：1984-02-07

    申请号：US354553

    申请日：1982-03-03

    Applicant: Ainslie T. Young ,  Robert G. Marsters ,  Dawn K. Moreno

    Inventor： Ainslie T. Young ,  Robert G. Marsters ,  Dawn K. Moreno

    IPC: C08J3/11 ,  C08J9/26 ,  C08L23/20

    CPC classification number: C08J9/26 ,  C08J3/11 ,  C08L23/20 ,  C08J2201/042 ,  C08J2323/20

    Abstract: A microcellular low density foam of poly(4-methyl-1-pentene) which is particularly useful for forming targets for inertial confinement fusion has been developed. Articles made from the foam have been machined to tolerances of 0.0001 inch, although the densities of the fragile foam are low (about 10 to about 100 mg/cc) and the cell sizes are small (about 10 to about 30 .mu.m). Methods for forming the foam and articles are given; and the yield strength of the foam of the invention is higher than was obtained in other structures of this same material.

    Abstract translation: 已经开发了特别可用于形成惯性约束聚变靶的聚（4-甲基-1-戊烯）的微孔低密度泡沫。 由泡沫制成的制品已经加工成0.0001英寸的公差，尽管脆性泡沫的密度低（约10至约100mg / cc），并且泡孔尺寸小（约10至约30μm）。 给出形成泡沫和制品的方法; 并且本发明的泡沫的屈服强度高于在该相同材料的其它结构中获得的屈服强度。

    Water insoluble porogen removal process
    49.
    发明公开
    Water insoluble porogen removal process 有权
    Verfahren zum Entfernen vonwasserunlöslichenPorogenen

    公开(公告)号：EP1350809A1

    公开(公告)日：2003-10-08

    申请号：EP03251810.2

    申请日：2003-03-21

    Applicant: ROHM AND HAAS COMPANY

    Inventor： Jiang, Biwang

    IPC: C08J9/28 ,  C08J11/00

    CPC classification number: C08J9/26 ,  C08J11/02 ,  C08J2201/042

    Abstract: The present invention relates to a method of removing water insoluble porogens from macroreticular copolymers comprising distilling said porogen in water soluble organic solvent.

    Abstract translation: 本发明涉及从大网络共聚物中除去水不溶性致孔剂的方法，包括在水溶性有机溶剂中蒸馏所述致孔剂。

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