Alicyclic nitriles
    1.
    发明授权
    Alicyclic nitriles 失效
    ALICYCLIC NITRILES

    公开(公告)号:US3743667A

    公开(公告)日:1973-07-03

    申请号:US3743667D

    申请日:1972-01-27

    Applicant: BAYER AG

    Inventor: WAGNER K HAJEK M

    CPC classification number: C08G18/6535 C08G18/10 C08G18/3296

    Abstract: NOVEL ALDIMINES AND KETIMINES WHICH CONTAIN HYDROXYMEHTYL GROUPS ARE PROVIDED. THESE NEW COMPOUNDS ARE PREPARED BY REACTING SCHIFF''S BASES WHICH HAVE ACTIVE HYDROGEN ATOMS IN A-POSITION TO THE $C=N-GROUP WITH SOLVENTS ARE REQUIRED. THE REACTION PROCEEDS EXOTHERMICALLY AT TEMPERATURES AS LOW AS 0*C. AND THE PROCESS MAY ING AGENTS FOR THE PREPARATION OF POLYURETHANE PLASTICS.

    Abstract translation: 提供含羟基甲基的新型醛亚胺和酮亚胺。 这些新化合物通过将具有α-位的活性氢原子的席夫碱与甲醛或甲醛反应生成化合物来制备。 新化合物可以例如用作制备聚氨酯塑料的增塑链增长剂。

    Process for the preparation of mono-and polyimines with electrophilic double-bond systems
    4.
    发明授权
    Process for the preparation of mono-and polyimines with electrophilic double-bond systems 失效
    用双电双极系统制备单和多晶的方法

    公开(公告)号:US3742033A

    公开(公告)日:1973-06-26

    申请号:US3742033D

    申请日:1969-11-20

    Applicant: BAYER AG

    Inventor: HAJEK M WAGNER K

    CPC classification number: C08G18/00

    Abstract: Imines substituted in the Alpha -position are obtained by reacting mono- or polyimines (ket- and aldimines) with an electrophilic olefin (i.e., acrylic and metacrylic acid derivatives) at a temperature between 10* and 150* C, optionally under pressure and optionally in the presence of an inert solvent. The imines modified by the process of the invention have many possible uses and represent valuable intermediates for many organic syntheses. The new compounds obtainable according to the process can be used in the preparation of elastic moulding masses.

    Abstract translation: 在α-位置取代的亚胺可以通过使单 - 或多亚胺(酮 - 和二亚胺)与亲电烯烃(即丙烯酸和甲基丙烯酸衍生物)在10℃至150℃之间的温度下,任选地在压力下和任选地 在惰性溶剂的存在下。

    6.
    发明专利
    未知

    公开(公告)号:SE7611420L

    公开(公告)日:1977-04-18

    申请号:SE7611420

    申请日:1976-10-14

    Applicant: BAYER AG

    Abstract: The invention relates to new polyamines, preferably containing polyether segments, a process for their preparation and their use as starting components for the production of polyurethane resins. The process involves producing ketimines, aldimines or enamines containing hydroxyl groups by reacting a hydroxyl amine with an aldehyde or ketone and removing the water by product. The ketimine, aldimine, or enamine is then reacted with an NCO prepolymer wherein the hydroxyl group of the material reacts with the isocyanate group without disturbing the blocked amine. This polyaddition product is then hydrolyzed to unblock the high molecular weight polyamine.

    POLYURETHANE RESINS
    8.
    发明专利

    公开(公告)号:AU504102B2

    公开(公告)日:1979-10-04

    申请号:AU1876476

    申请日:1976-10-18

    Applicant: BAYER AG

    Abstract: The invention relates to new polyamines, preferably containing polyether segments, a process for their preparation and their use as starting components for the production of polyurethane resins. The process involves producing ketimines, aldimines or enamines containing hydroxyl groups by reacting a hydroxyl amine with an aldehyde or ketone and removing the water by product. The ketimine, aldimine, or enamine is then reacted with an NCO prepolymer wherein the hydroxyl group of the material reacts with the isocyanate group without disturbing the blocked amine. This polyaddition product is then hydrolyzed to unblock the high molecular weight polyamine.

    9.
    发明专利
    未知

    公开(公告)号:SE7709278L

    公开(公告)日:1978-02-19

    申请号:SE7709278

    申请日:1977-08-17

    Applicant: BAYER AG

    Abstract: The present invention relates to a process for the production of polyurethane ureas from a prepolymer which contains isocyanate groups and a mixture of hardeners containing amino groups, in the presence of water, and optionally in the presence of solvents, characterized in that the mixture of hardeners comprises compounds corresponding to the following general formulae:

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