Photopolymer cleavage imaging system
    21.
    发明授权
    Photopolymer cleavage imaging system 失效
    光聚合物切割成像系统

    公开(公告)号:US4435496A

    公开(公告)日:1984-03-06

    申请号:US421685

    申请日:1982-09-22

    摘要: Disclosed are novel photosensitive compositions containing a compound consisting essentially of repeating structural units of an alkyl aryl ether, which are end-capped with a substituent functional group containing an ethylenically unsaturated moiety, and a photosensitizing effective amount of a free radical generating compound. Through the selected exposure of films and coatings prepared from the above composition, it is possible to record information in such materials in a manner as to alter the physical and/or chemical properties of such films and coatings. This selective modification can then be simply manifested by contacting the exposed surface of the film or coating, subsequent to such exposure, with an alkaline developing solution. These compositions are useful in the graphic arts and in the manufacture of printed curcuit boards for the electronics industry.

    摘要翻译: 本发明公开了一种新型光敏组合物,其含有基本上包含具有含有烯键式不饱和部分的取代官能团封端的烷基芳基醚的结构单元和光敏有效量的产生自由基的化合物的化合物。 通过从上述组合物制备的薄膜和涂料的选择曝光,可以以改变这种薄膜和涂层的物理和/或化学性质的方式在这些材料中记录信息。 然后可以简单地通过使这种曝光后的膜或涂层的暴露表面与碱性显影溶液接触来简单地表现出这种选择性改性。 这些组合物可用于图形艺术和用于电子工业的印刷电路板的制造。

    Thermosetting compositions containing poly(arylacetylenes)
    22.
    发明授权
    Thermosetting compositions containing poly(arylacetylenes) 失效
    含有聚(芳基乙炔)的热固性组合物

    公开(公告)号:US4026859A

    公开(公告)日:1977-05-31

    申请号:US580658

    申请日:1975-05-27

    摘要: The invention relates to thermosetting compositions which are blends of novel poly(arylacetylenes) and, as fluidizers, certain aromatic organic compounds containing at least two aromatic rings. The poly(arylacetylenes) are prepolymers of polyacetylenically substituted aromatic compounds, which prepolymers have a number average molecular weight of from about 900 to about 12,000 and contain from about 5 to about 20% by weight of acetylenic groups. Diethynylbenzene is one of the preferred monomers used in preparation of the prepolymers. Representative of the compounds containing at least two aromatic rings are diphenyl ether and dibenzofuran. The compositions are curable by heat to produce thermoset resins which have very desirable physical properties at both normal and high temperatures.

    摘要翻译: 本发明涉及热固性组合物,其是新型聚(芳基乙炔)和作为流化剂的混合物,其含有至少两个芳环的某些芳族有机化合物。 聚(芳基乙炔)是聚乙炔取代的芳族化合物的预聚物,其预聚物的数均分子量为约900至约12,000,并含有约5至约20重量%的炔属基团。 二乙炔基苯是用于制备预聚物的优选单体之一。 含有至少两个芳环的化合物的代表是二苯醚和二苯并呋喃。 组合物可通过加热固化以制备在正常和高温下具有非常理想的物理性能的热固性树脂。

    Polymers of polyphenylene type and method of producing the same
    24.
    发明授权
    Polymers of polyphenylene type and method of producing the same 失效
    聚苯乙烯类聚合物及其制备方法

    公开(公告)号:US3705131A

    公开(公告)日:1972-12-05

    申请号:US3705131D

    申请日:1970-11-27

    摘要: A METHOD OF PRODUCING POLYMERS OF THE CROSSLINKED POLYPHENYL TYPE BY POLYCYCLOTRIMERIZATON OF DIETHYNYL DERIVATIVES OF AROMATIC OR HETEROCYLIC COMPOUNDS OF THE GENERAL FORMULA CH=C-R-C=CH, WHERE R IS

    PHENYL, PHENOXYPHENYL

    OR OF A MIXTURE THEREOF WITH MONOETHYNYL ORGANIC COMPOUNDS OF THE FORMULA CH=C6H5 IN THE PRESENCE OF COMPLEX CATALYSTS WHICH ARE COMPLEX COMPOUNDS OF TRANSITIONS METALS BELONGING TO GROUPS IV-VIII OF THE PERIODIC TABLE, SUCH AS/(RO)3P/NCOHAL, WHERE R IS A LOWER ALKYL, HAL IS CL, BR, I, AND N=3 OR 4. AS A RESULT OF SAID METHOD, A NEW TYPE OF PHENYLENES IS OBTAINED, CONFORMING TO THE FOLLOWING STRUCTURES:

    (BENZENETRIYL-R)X- AND ((C6H5-PHENYLENE)-R)X-

    WHERE R HAS THE ABOVE-SPECIFIED SIGNIFICANE, AND X IS ANY NUMBER. SUCH POLYMERS ARE THERMOSETTING, THAT IS WHEN HEATED UP TO 150-200*C., THEY SET AND PASS INTO AN INFUSIBLE AND INSOLUBLE STATE; THEY FEATURE A HIGH THERMOSTABILITY UP TO 900*C., AND REMAIN INVARIABLY STABLE TO THERMAL DEFORMATION UP TO TEMPERATURES OF THERMAL DECOMPOSITION THEREOF (500-600*C.).