Amines, processes for their preparation and their use in compositions
which can undergo free radical polymerization
    2.
    发明授权
    Amines, processes for their preparation and their use in compositions which can undergo free radical polymerization 失效
    胺,它们的制备方法及其在可以进行自由基聚合的组合物中的用途

    公开(公告)号:US4628112A

    公开(公告)日:1986-12-09

    申请号:US675689

    申请日:1984-11-28

    摘要: Compounds of the formula ##STR1## in which R represents hydrogen or a methyl group,Y.sup.1 represents an optionally branched alkylene radical with 1 to 6 C atoms,Y.sup.2 represents an optionally branched alkylene radical with 2 to 8 C atoms,X denotes oxygen or an --NH-- group,R.sup.1 and R.sup.2 are identical or different and denote hydrogen, or an alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, aralkyl or alkylaryl group which has 1 to 11 C atoms and is optionally substituted by one or more,hydroxyl, amino, epoxide, urethane, urea, ester or ether groups, orR.sup.1 and R.sup.2 together form a 3-membered to 6-membered ring, which optionally contains nitrogen, oxygen or sulphur as hetero-atoms,R.sup.3 has the meaning of R.sup.1 or represents a group ##STR2## or R.sup.2 and R.sup.3, together with the ##STR3## group, form a 5-membered or 6-membered ring, which optionally contains oxygen as a further hetero-atom, andR.sup.4 and R.sup.5 are identical or different and represent hydrogen, an alkyl or alkenyl group which has 1 to 10 C atoms and is optionally substituted by halogen, or halogen,function as activators in the free radical polymerization of olefinically unsaturated monomers.

    摘要翻译: 其中R表示氢或甲基的式“IMAGE”的化合物,Y1表示具有1至6个C原子的任选支化的亚烷基,Y2表示具有2至8个C原子的任选支化的亚烷基,X表示氧或 -NH-基团,R 1和R 2相同或不同,表示氢或具有1至11个C原子并且任选被一个或多个羟基取代的烷基,烯基,环烷基,环烯基,芳基,芳烷基或烷芳基, 氨基,环氧化物,氨基甲酸酯,脲,酯或醚基团,或R 1和R 2一起形成3元至6元环,其任选地含有氮,氧或硫作为杂原子,R 3具有R 1的含义或表示 一组或R2和R3与基团一起形成5元或6元环,其任选地含有氧作为另一个杂原子,并且R 4和R 5相同或不同,并且表示 氢,具有1至10个C原子的烷基或烯基,并且是op 被卤素或卤素取代,在烯属不饱和单体的自由基聚合中用作活化剂。

    Diisocyanates and their use for the preparation of polyurethanes
    6.
    发明授权
    Diisocyanates and their use for the preparation of polyurethanes 失效
    二异氰酸酯及其用于制备聚氨酯的用途

    公开(公告)号:US4835239A

    公开(公告)日:1989-05-30

    申请号:US879756

    申请日:1986-06-27

    摘要: The present invention relates to diisocyanates having an isocyanate content of from about 20 to 50% by weight, optionally in the form of isomeric mixtures, characterized in that, in addition to containing a sterically unhindered isocyanate group attached to a primary aliphatic carbon atom, they contain a sterically hindered isocyanate group attached to a tertiary carbon atom which forms part of a cycloaliphatic ring system.The invention also relates to the use of the new diisocyanates, optionally blocked with blocking agents for isocyanate groups, as isocyanate component for the preparation of polyurethanes suitable for use as coatings.

    摘要翻译: 本发明涉及异氰酸酯含量为约20至50重量%,任选地为异构混合物形式的二异氰酸酯,其特征在于,除了含有连接到伯脂肪族碳原子上的空间未阻碍的异氰酸酯基之外,它们 含有连接到形成脂环族环系的一部分的叔碳原子上的空间位阻异氰酸酯基团。 本发明还涉及新型二异氰酸酯(任选用封端剂封端的异氰酸酯基团)作为异氰酸酯组分用于制备适合用作涂料的聚氨酯的用途。

    Aliphatic-cycloaliphatic diisocyanates
    8.
    发明授权
    Aliphatic-cycloaliphatic diisocyanates 失效
    脂肪族 - 脂环族二异氰酸酯

    公开(公告)号:US4613685A

    公开(公告)日:1986-09-23

    申请号:US691103

    申请日:1985-01-14

    摘要: The present invention relates to diisocyanates having an isocyanate content of from about 20 to 50% by weight, optionally in the form of isomeric mixtures, characterized in that, in addition to containing a sterically unhindered isocyanate group attached to a primary aliphatic carbon atom, they contain a sterically hindered isocyanate group attached to a tertiary carbon atom which forms part of a cycloaliphatic ring system.The invention also relates to the use of the new diisocyanates, optionally blocked with blocking agents for isocyanate groups, as isocyanate component for the preparation of polyurethanes.

    摘要翻译: 本发明涉及异氰酸酯含量为约20至50重量%,任选地为异构混合物形式的二异氰酸酯,其特征在于,除了含有连接到伯脂肪族碳原子上的空间未阻碍的异氰酸酯基之外,它们 含有连接到形成脂环族环系的一部分的叔碳原子上的空间位阻异氰酸酯基团。 本发明还涉及使用任选用封端剂封端的异氰酸酯二异氰酸酯作为制备聚氨酯的异氰酸酯组分的用途。

    Preparation of nitriles from formamides
    9.
    发明授权
    Preparation of nitriles from formamides 失效
    从甲酰胺制备腈

    公开(公告)号:US4419297A

    公开(公告)日:1983-12-06

    申请号:US340902

    申请日:1982-01-20

    CPC分类号: C07C253/20

    摘要: Aliphatic, araliphatic or aromatic nitriles of the formula R--CN are obtained by reacting N-substituted formamides of the formula R--NHCHO with at least the stoichiometric quantity of an acylating agent (generally a carboxylic acid anhydride, such as acetic anhydride, or ketene) in the gas phase at temperatures above 250.degree. C., without using a catalyst. The process is especially useful in the preparation of nitriles wherein the connecting carbon of R is a tertiary carbon atom. The nitriles are important intermediate products, for example for the preparation of herbicides, surface-active agents and anti-corrosive agents.

    摘要翻译: 式R-CN的脂族,芳脂族或芳族腈通过使式R-NHCHO的N-取代甲酰胺与至少化学计量量的酰化剂(通常为羧酸酐,例如乙酸酐或乙烯酮)反应而获得 )在高于250℃的温度下在气相中,而不使用催化剂。 该方法在制备其中R的连接碳是叔碳原子的腈中是特别有用的。 腈是重要的中间产物,例如用于制备除草剂,表面活性剂和抗腐蚀剂。