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    • 5. 发明授权
    • Room temperature curable polyether composition
    • 室温固化聚醚组合物
    • US5358996A
    • 1994-10-25
    • US101709
    • 1993-08-04
    • Toshio TakagoKouichi YamaguchiShinichi SatoTakashi Matsuda
    • Toshio TakagoKouichi YamaguchiShinichi SatoTakashi Matsuda
    • C08G65/32C08G65/22C08G65/336C08J3/24C08L71/02C08L83/00C08G77/06C09K3/00
    • C08G65/336C08G65/226
    • A room temperature curable polyether composition, comprising a polyether compound of which at least one terminal has a group, represented by the general formula (1): ##STR1## wherein R.sup.1 is an alkyl group or an aryl group, R.sup.2 is a hydrogen atom or a monovalent organic group, R.sup.3 is a divalent organic group, X is a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxyl group, an alkenyloxy group, an acyloxy group, a ketoximate group, an amido group, an aminoxy group or a mercapto group and a is an integer of 0 to 2, and of which main chain comprises a fluorine-containing polyether chain, represented by the general formula (2): ##STR2## wherein R.sub.f is a perfluoro group, R.sup.4 is a divalent organic group, m is an integer of 4 or more and n is an integer of 0 or more. The cured product thereof is excellent in rubber properties and is useful as one-part or two-part type elastic sealant. Furthermore it provides an elastic sealant excellent in solvent-resistance, chemical resistance, water repellency, oil repellency, etc.
    • 一种室温可固化聚醚组合物,其包含由通式(1)表示的至少一个具有基团的末端的聚醚化合物:其中R 1为烷基或芳基,R 2为 氢原子或一价有机基团,R 3为二价有机基团,X为氢原子,卤素原子,羟基,烷氧基,烯氧基,酰氧基,酮肟基,酰胺基, 氨基或巯基,a为0〜2的整数,其主链包括由通式(2)表示的含氟聚醚链:其中Rf为全氟基团 R4为二价有机基团,m为4以上的整数,n为0以上的整数。 其固化物的橡胶性能优异,可用作一部分或两部分型弹性密封剂。 此外,它提供了耐溶剂性,耐化学性,防水性,拒油性等优异的弹性密封剂。
    • 7. 发明授权
    • Preparation of high molecular weight organopolysiloxane
    • 高分子量有机聚硅氧烷的制备
    • US5227447A
    • 1993-07-13
    • US925194
    • 1992-08-06
    • Shinichi SatoTakashi MatsudaToshio Takago
    • Shinichi SatoTakashi MatsudaToshio Takago
    • C08G77/08
    • C08G77/08
    • The process for preparing a high molecular weight organopolysiloxane comprises subjecting a hydroxyl-containing organosiloxane, as a starting material, to a dehydration condensation reaction in the presence of an acidic compound selected from the acidic compounds represented by the following general formulas (1) and (2): ##STR1## wherein in the formulas n is an integer of from 1 to 10, k is an integer of from 0 to 8, and 1 and m are each an integer of 0 or above, with 1+m being in the range from 1 to 10. The process is advantageous over the conventional methods in that compounds having toxicity or the like are neither used nor by-produced. The process also has the merit of easy control of the molecular weight of the intended organopolysiloxane.
    • 制备高分子量有机聚硅氧烷的方法包括在选自下列通式(1)和(I)表示的酸性化合物的酸性化合物存在下,使含羟基的有机硅氧烷作为起始原料进行脱水缩合反应, 2):(1)(2)其中,在式中,n是1至10的整数,k是0至8的整数,并且1和m各自为整数0或 其中1 + m在1至10的范围内。该方法优于常规方法,因为具有毒性等的化合物既不使用也不再生产。 该方法还具有易于控制目标有机聚硅氧烷的分子量的优点。
    • 9. 发明授权
    • Room temperature curable organopolysiloxane composition and cured
product of the same
    • 室温可固化的有机聚硅氧烷组合物和固化产物相同
    • US5314981A
    • 1994-05-24
    • US37322
    • 1993-03-26
    • Toshio TakagoShinichi SatoHitoshi KinamiHirokazu Yamada
    • Toshio TakagoShinichi SatoHitoshi KinamiHirokazu Yamada
    • C08K5/54C08L83/04C08G77/24
    • C08K5/54C08L83/04C08G77/16C08G77/20C08G77/24C08G77/70
    • A room temperature curable organopolysiloxane composition comprising: (A) 100 parts by weight of a diorganopolysiloxane blocked by hydroxyl group at both terminal ends of its molecule, (B) from 0.5 to 30 parts by weight of an organosilicon compound having at least three silicon-bonded hydrolyzable groups in its molecule or a partially hydrolyzed product of the organosilicon compound, (C) from 0.1 to 15 parts by weight of an alkoxysilane having the following general formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are each an unsubstituted or substituted monovalent hydrocarbon group of from 1 to 8 carbon atoms, R.sup.3 is a divalent hydrocarbon group of from 1 to 8 carbon atoms which may contain an amide linkage (--CONH--) or ether oxygen linkage, Rf is a divalent perfluoroalkylene group or a divalent perfluoropolyether group, and n is an integer from 1 to 3, and a cured product of the composition. The composition and the cured product thereof ensure lessened contamination on surfaces of the cured product and in the surroundings, and permit easy removal of fungi, if any, from surfaces of the cured product.
    • 一种室温可固化的有机聚硅氧烷组合物,其包含:(A)100重量份在其分子的两个末端被羟基封端的二有机聚硅氧烷,(B)0.5至30重量份的具有至少三个硅 - 其分子中的键合可水解基团或有机硅化合物的部分水解产物,(C)0.1至15重量份具有以下通式(1)的烷氧基​​硅烷:其中R 1和R 2各自为 1至8个碳原子的未取代或取代的一价烃基,R 3是可含有酰胺键(-CONH-)或醚氧键的1至8个碳原子的二价烃基,Rf是二价全氟亚烷基 或二价全氟聚醚基,n为1〜3的整数,以及所述组合物的固化物。 组合物和其固化产物确保了固化产物表面和周围环境中污染物的减少,容易从固化产物的表面除去真菌(如果有的话)。