Silyl-substituted urea derivatives
    3.
    发明授权
    Silyl-substituted urea derivatives 失效
    硅替代尿素衍生物

    公开(公告)号:US3676478A

    公开(公告)日:1972-07-11

    申请号:US3676478D

    申请日:1969-11-26

    Applicant: BAYER AG

    CPC classification number: C08G77/26 C07F7/182 C08G18/10 Y10S516/07 C08G18/289

    Abstract: New organosilyl- and carbamate-modified urea derivatives have the formula IN WHICH R and R'' are monovalent hydrocarbon radicals, R'''' and R'''''' are hydrogen atoms or monovalent hydrocarbon radicals, Q'' is a bivalent hydrocarbon radical, Q is a monovalent to hexavalent hydrocarbon radical, a is 0, 1, 2 or 3, n is 2, 3 or 4, b is zero or an integer from 1 to 200, and c is the valency number of Q. These urea derivatives are prepared by reacting at a temperature of from -20* to 150* C an aminoalkyl-silane derivative of the formula WITH AN ISOCYANATE-MODIFIED CARBAMIC ACID ESTER OF THE FORMULA The products are to be used as priming agents imparting adhesion to synthetic resins on siliceous surfaces, as surfactants and as intermediates for organo-polysiloxane resins.

    Abstract translation: 新的有机甲硅烷基和氨基甲酸酯改性的脲衍生物具有下式:其中R和R'是一价烃基,R“和R”'是氢原子或一价烃基,Q'是二价烃基,Q是 一价至六价烃基,a为0,1,2或3,n为2,3或4,b为0或1〜200的整数,c为Q的化合价数。

    Heterocyclic isocyanates containing two ring nitrogen atoms
    5.
    发明授权
    Heterocyclic isocyanates containing two ring nitrogen atoms 失效
    含有两个环氮原子的杂环异氰酸酯

    公开(公告)号:US3919228A

    公开(公告)日:1975-11-11

    申请号:US26008872

    申请日:1972-06-06

    Applicant: BAYER AG

    CPC classification number: C08G18/714

    Abstract: a-Pyridyl, a-pyrimidyl and a-pyrazinyl isocyanates which contain electronegative substituents in the ring are prepared by reacting the corresponding amino compounds with oxalyl chloride. Due to the high reactivity of the -NCO group these compounds are particularly useful as cross linking agents and modifiers for compounds containing Zerewitinoff-active hydrogen.

    Abstract translation: 通过使相应的氨基化合物与草酰氯反应来制备环中含有负电荷取代基的α-吡啶基,α-嘧啶基和α-吡嗪基异氰酸酯。 由于-NCO基团的高反应性,这些化合物特别可用作含有Zerewitinoff-活性氢的化合物的交联剂和改性剂。

    Silyl-substituted urea derivatives and a process for their preparation
    10.
    发明授权
    Silyl-substituted urea derivatives and a process for their preparation 失效
    甲硅烷基取代的脲衍生物及其制备方法

    公开(公告)号:US3895043A

    公开(公告)日:1975-07-15

    申请号:US30319272

    申请日:1972-11-02

    Applicant: BAYER AG

    CPC classification number: C07F7/182 C08G18/10 C08G18/289

    Abstract: This invention discloses a silyl-substituted urea derivative of controlled reactivity, high storage stability and which improve the properties of the cross-linked end products obtained by the prior art. The silyl-substituted urea comprises the general formula:

    WHEREIN R represents a C1-C18 alkyl, C4-C14 cycloalkyl or a phenyl radical, R'' represents a C1-C10 alkyl, C4-C10 cycloalkyl or C6-C10 aryl radical which may be halogenated or cyano-substituted, R'''' represents a hydrogen atom or a methyl or phenyl radical; R'''''' represents a hydrogen atom or a C1-C18 alkyl, C4-C14 cycloalkyl or C6-C14 aryl radical which may be halogenated or cyano-substituted; Q'' represents an alkyl radical containing from 4 to 12 carbon atoms with a valency of (b + 1) or a C4-C14 cycloalkyl, C7-C15 arylalkyl, C6-C14 aryl or C8 alkylaryl radical, all of which radicals have a valency of (b + 1); Q represents a c-valent radical which has been obtained by the removal of C HX groups from a compound with a molecular weight of 200 to 150,000, preferably from 4000 to 80,000, which contains ester, amide, urethane, thioether, acetal, urea, hydrazodicarbonamide, hydrazide and/or carbonate groups and may also contain additional ether groups; A 0, 1 OR 2; B 1 TO 7, PREFERABLY 1 OR 2; C 1 TO 8, PREFERABLY 2 OR 3 AND X O, S, NH or N-Y- (Y C1-C8 alkyl radicals).

    Abstract translation: 本发明公开了具有受控反应性,高储存稳定性和改进现有技术获得的交联终产物性能的甲硅烷基取代的脲衍生物。

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