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    Photocurable organopolysiloxane compositions
    1.
    发明授权
    Photocurable organopolysiloxane compositions 失效
    光固化有机聚硅氧烷组合物

    公开(公告)号：US4359369A

    公开(公告)日：1982-11-16

    申请号：US180934

    申请日：1980-08-25

    申请人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Hsashi Aoki ,  Yoshio Inoue

    发明人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Hsashi Aoki ,  Yoshio Inoue

    IPC分类号： C08G77/28 ,  C08G77/392 ,  C08L83/08 ,  G03F7/075 ,  G03C1/68 ,  C08G77/00

    CPC分类号： C08L83/08 ,  C08G77/28 ,  C08G77/392 ,  G03F7/0757 ,  Y10S522/905

    摘要： The invention provides a novel photocurable organopolysiloxane composition having an unusually high photosensitivity suitable, for example, for providing an anti-sticking layer on a release paper. The composition comprises an organopolysiloxane having, in a molecule, at least one thioacyloxy-containing organosiloxane unit as the photosensitive functional group and a photosensitizer. Further improved photocurable composition of the invention comprises an organopolysiloxane having, in addition to the above mentioned thioacyloxy-containing organosiloxane units, at least one mercaptohydrocarbyl-containing organosiloxane unit in a molecule. Alternatively, photosensitivity of the similar degree is obtained when the composition comprises a first organopolysiloxane having, in a molecule, at least one thioacyloxy-containing organosiloxane unit and a second organopolysiloxane having, in a molecule, at least one mercaptohydrocarbyl-containing organosiloxane unit as combined.

    摘要翻译： 本发明提供了一种新颖的光固化有机聚硅氧烷组合物，其具有非常高的光敏性，其适合于例如在剥离纸上提供防粘层。 该组合物包含在分子中含有至少一个含硫代酰氧基的有机硅氧烷单元作为光敏官能团的有机聚硅氧烷和光敏剂。 本发明的进一步改善的光固化性组合物还包含除上述含硫代酰氧基的有机硅氧烷单元外的分子中含有至少一个含巯基烃基的有机硅氧烷单元的有机聚硅氧烷。 或者，当组合物包含在分子中含有至少一个含硫代酰氧基的有机硅氧烷单元和在分子中具有至少一个含巯基烃基的有机硅氧烷单元的第二有机聚硅氧烷时，得到相似程度的光敏性， 。

    Photocurable organopolysiloxane compositions
    2.
    发明授权
    Photocurable organopolysiloxane compositions 失效
    光固化有机聚硅氧烷组合物

    公开(公告)号：US4303484A

    公开(公告)日：1981-12-01

    申请号：US68593

    申请日：1979-08-22

    申请人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Aoki, Hisashi

    发明人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Aoki, Hisashi

    IPC分类号： C08F2/46 ,  C08L83/08 ,  D21H19/32 ,  G03F7/075

    CPC分类号： G03F7/0757 ,  C08F2/46 ,  C08L83/08 ,  D21H19/32 ,  Y10S522/904 ,  Y10T428/31663 ,  Y10T428/31667

    摘要： A novel photocurable composition suitable for preparing, for example, release papers is proposed which is formulated with photocrosslinkable organopolysiloxanes necessitating no conventional photosensitizers. Thus, the composition comprises(a) an organopolysiloxane having at least two mercaptoalkyl, e.g. mercaptopropyl, groups bonded to the silicon atoms in a molecule,(b) an organopolysiloxane having at least two alkenyl, e.g. vinyl groups directly bonded to the silicon atoms in a molecule, and(c) an organopolysiloxane having at least one benzoin group ##STR1## where Ph is a phenyl group, bonded to the silicon atom in a molecule, which component (c) serves as a photosensitizing ingredient. Alternatively, the inventive composition comprises (a) a mercaptoalkyl-containing organopolysiloxane as above and (b') an organopolysiloxane having, simultaneously, at least two alkenyl groups and at least one benzoin group directly bonded to the silicon atoms in a molecule, which component (b') serves both as the crosslinking agent and as the photosensitizing ingredient simultaneously. Owing to the unquestionable affinity of the photosensitizing ingredient with the other components, the inventive compositions have very high sensitivity in photocuring along with several other advantageous characteristics.

    摘要翻译： 提出了适用于制备例如离型纸的新型光固化性组合物，其与光可交联的有机聚硅氧烷配制，不需要常规的光敏剂。 因此，组合物包含（a）具有至少两个巯基烷基的有机聚硅氧烷。 巯基丙基，分子中与硅原子键合的基团，（b）具有至少两个烯基的有机聚硅氧烷，例如 分子中直接与硅原子键合的乙烯基，和（c）具有至少一个苯偶姻基团的成分的有机聚硅氧烷，其中Ph是分子中与硅原子键合的苯基，该组分（c）用作 光敏成分。 或者，本发明的组合物包含（a）如上所述的含巯基烷基的有机聚硅氧烷和（b'）有机聚硅氧烷，其同时具有至少两个烯基和至少一个与分子中的硅原子键合的苯偶姻基团，该组分 （b'）同时用作交联剂和光敏成分。 由于光敏成分与其它组分的无疑的亲和性，本发明的组合物在光固化中具有非常高的灵敏度以及若干其它有利特征。

    Benzoin-bonded organopolysiloxanes and method for the preparation thereof
    3.
    发明授权
    Benzoin-bonded organopolysiloxanes and method for the preparation thereof 失效
    苯偶姻键合的有机聚硅氧烷及其制备方法

    公开(公告)号：US4273907A

    公开(公告)日：1981-06-16

    申请号：US58539

    申请日：1979-07-18

    申请人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Hisashi Aoki

    发明人： Minoru Takamizawa ,  Fumio Okada ,  Yasuaki Hara ,  Hisashi Aoki

    IPC分类号： C08G77/20 ,  C08G77/04

    CPC分类号： C08G77/20 ,  Y10S522/904

    摘要： The invention provides a novel class of organopolysiloxane compounds having at least one benzoin group represented by the general formula ##STR1## in which Ph is a phenyl group and R is a hydrogen atom or an alkyl group, bonded to the silicon atom in a molecule. The benzoin-bonded organopolysiloxane compounds can readily be prepared by the dehydrohalogenation, dehydrogenation, dehydration or dealkoholation condensation reaction between a corresponding organopolysiloxane having silicon-bonded halogen atoms, hydrogen atoms, hydroxy groups or alkoxy groups and an .alpha.-substituted or unsubstituted benzoin compound in the presence of a suitable reaction promotor or a condensation catalyst.

    摘要翻译： 本发明提供了一类新颖的有机聚硅氧烷化合物，其具有至少一个由通式“IMAGE”表示的苯偶姻基团，其中Ph是苯基，R是与分子中的硅原子键合的氢原子或烷基。 苯偶姻键合的有机聚硅氧烷化合物可以容易地通过相应的具有硅键合的卤素原子，氢原子，羟基或烷氧基的有机聚硅氧烷和α-取代或未取代的苯偶姻化合物之间的脱卤化氢，脱氢，脱水或脱烷基化缩合反应来制备 存在合适的反应促进剂或缩合催化剂。

    Benzoin group-containing cyclic organopolysiloxanes and a method for the preparation thereof
    4.
    发明授权
    Benzoin group-containing cyclic organopolysiloxanes and a method for the preparation thereof 失效
    含有苯偶姻基团的环状有机聚硅氧烷及其制备方法

    公开(公告)号：US4337348A

    公开(公告)日：1982-06-29

    申请号：US274631

    申请日：1981-06-17

    申请人： Minoru Takamizawa ,  Fumio Okada ,  Hisashi Aoki

    发明人： Minoru Takamizawa ,  Fumio Okada ,  Hisashi Aoki

    IPC分类号： C08K5/00 ,  C07F7/08 ,  C07F7/10 ,  C07F7/21 ,  C08F2/50 ,  C08G77/04 ,  C08K5/549 ,  C07F7/18

    CPC分类号： C08G77/045 ,  C07F7/0885 ,  C07F7/21 ,  C08F2/50

    摘要： The invention provides a benzoin group-containing cyclic organopolysiloxane, which belongs to a novel class of organosilicon compounds hitherto not known or not described in any prior art literatures. The compound has at least one benzoin group of the formula ##STR1## in which Ph is a phenyl group and R.sup.1 is a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms or, in particular, a methyl group, directly bonded to the silicon atom in the cyclic tri-, tetra-, penta- or hexasiloxane. The compound is useful as a sensitizer for the crosslinking reaction of a photo- or radiation-curable organopolysiloxane composition owing to the high miscibility of the inventive compounds with the organopolysiloxane composition.

    摘要翻译： 本发明提供了一种含苯偶姻基的环状有机聚硅氧烷，其属于迄今为止在任何现有技术文献中未知或未描述的新一类有机硅化合物。 该化合物具有至少一个式“IMAGE”的苯偶姻基团，其中Ph是苯基，R 1是氢原子或具有1至4个碳原子的烷基或特别是甲基，直接键合到 环状三，四，五或六硅氧烷中的硅原子。 由于本发明化合物与有机聚硅氧烷组合物的高混溶性，该化合物可用作光或可辐射固化的有机聚硅氧烷组合物的交联反应的敏化剂。

    Method for the preparation of planographic printing plates
    8.
    发明授权
    Method for the preparation of planographic printing plates 失效
    平版印刷版的制备方法

    公开(公告)号：US4271255A

    公开(公告)日：1981-06-02

    申请号：US134435

    申请日：1980-03-27

    申请人： Kenji Cho ,  Minoru Takamizawa ,  Yoshio Inoue

    发明人： Kenji Cho ,  Minoru Takamizawa ,  Yoshio Inoue

    IPC分类号： G03F7/00 ,  G03F7/075 ,  G03C11/12 ,  G03F7/02

    CPC分类号： G03F7/0757

    摘要： The invention provides a novel method for the preparation of a printing plate suitable for dry planographic printing without supply of dampening water utilizing the ink-repellency of a cured silicone resin. In the inventive method, a base plate provided with two successive layers of a first adhesive agent and a photocurable organopolysiloxane composition is overlaid with a UV-transparent covering sheet provided with a layer of a second adhesive agent in such a manner that the layers of the organopolysiloxane composition and the second adhesive agent are in direct contact with each other and irradiated with UV light pattern-wise through the sheet. The adhesive bonding strength between the second adhesive agent and the organopolysiloxane composition exhibited by the exposure to light is larger than between the first adhesive agent and the organopolysiloxane composition so that peeling of the covering sheet off the base plate leaves the layer of the organopolysiloxane composition pattern-wise in the unirradiated areas, which is subsequently photocured by the second exposure to light to give image-wise ink-repellent areas formed of the cured organopolysiloxane composition bonded to the base plate useful as a planographic printing plate of high durability.

    摘要翻译： 本发明提供了一种制备适用于干性平版印刷的印刷版的新方法，而不用利用固化的有机硅树脂的拒墨性来提供润版水。 在本发明的方法中，将具有第二粘合剂层和第二粘合剂层的两层连续层的基板与第二粘合剂层叠在一起的UV透明覆盖片上， 有机聚硅氧烷组合物和第二粘合剂彼此直接接触并且通过片状图案地以UV光照射。 通过暴露于光而显示的第二粘合剂和有机聚硅氧烷组合物之间的粘合强度大于第一粘合剂和有机聚硅氧烷组合物之间的粘合强度，使得覆盖片从基板剥离离开有机聚硅氧烷组合物图案层 在未照射区域中，其随后通过第二次曝光光固化，得到由固化的有机聚硅氧烷组合物形成的图像形成的疏油区域，该有机聚硅氧烷组合物与用作高耐久性的平版印刷版的底板接合。

    Magnetic recording medium
    10.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4435485A

    公开(公告)日：1984-03-06

    申请号：US295306

    申请日：1981-08-24

    申请人： Kaoru Nakajima ,  Masashi Somezawa ,  Minoru Takamizawa ,  Yoshio Inoue ,  Hiroshi Yoshioka

    发明人： Kaoru Nakajima ,  Masashi Somezawa ,  Minoru Takamizawa ,  Yoshio Inoue ,  Hiroshi Yoshioka

    IPC分类号： C08F2/00 ,  C08F2/46 ,  C08F2/48 ,  C08F2/54 ,  C08L33/00 ,  C08L33/04 ,  C09D4/00 ,  C09D5/23 ,  C09D175/14 ,  G11B5/702 ,  H01F10/02

    CPC分类号： G11B5/7026 ,  G11B5/7023 ,  Y10S428/90 ,  Y10T428/31786

    摘要： The magnetic recording medium contains the magnetic layer comprising the magnetic or magnetizable powders or particles and the binder comprising a composition containing(A) a compound represented by formula (V): ##STR1## (wherein R is methyl or ethyl group and X is a group containing an acrylic or methacrylic double bond; i is a number in the range of approximately 200 to 800, j is a number in the range of approximately 10 to 200, k is a number in the range up to approximately 200, and l is a number in the range of approximately 3 to 100, provided that the division of l by the sum of k and l is in the range from approximately 0.2 to 1.0)and(B) a compound having at least two acrylic and/or methacrylic double bonds in the molecule thereof and having a molecular weight ranging from approximately 1,000 to 6,000 in which the molecular weight in the molecule per one double bond is in the range from approximately 80 to 3,000.The composition is cured by the irradiation of radiation so that the magnetic recording medium has an improved durability as well as physical strengths in the magnetic layer thereon.

    摘要翻译： 磁记录介质含有包含磁性或可磁化粉末或颗粒的磁性层，粘合剂包括含有（A）由式（V）表示的化合物的组合物：其中R是甲基或乙基，X是 基团为丙烯酸或甲基丙烯酸双键; i为约200〜800范围内的数，j为约10〜200的数，k为约200以下的数，l为 大约3至100范围内的数字，条件是除以k和l的总和除以约0.2至1.0）和（B）具有至少两个丙烯酸和/或甲基丙烯酸双酯的化合物 分子中的键，其分子量范围为约1,000至6,000，其中每个双键的分子中的分子量在约80至3,000的范围内。 组合物通过辐射照射而固化，使得磁记录介质在其上的磁性层中具有改善的耐久性以及物理强度。