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    • 1. 发明授权
    • Cycloaminals and a process for their preparation
    • 环状物及其制备方法
    • US4404379A
    • 1983-09-13
    • US935439
    • 1978-08-21
    • Manfred HajekKuno WagnerWalter UerdingenWolfgang Wellner
    • Manfred HajekKuno WagnerWalter UerdingenWolfgang Wellner
    • C07D233/02C07D239/04C08G18/80
    • C07D239/04C07D233/02C08G18/808
    • The present invention is concerned with a new class of compounds prepared by reacting cyclic aminals of the formula ##STR1## with polyisocyanates of the formula R.sub.5 (NCO).sub.m+n to yield ##STR2## and with this process for obtaining said compounds, as well as the use of such compounds in polyurethane chemistry. If such compounds are free of isocyanates (n=0) they are useful as latent cross-linkers or hardeners activatable by heat or moisture. If such compounds carry free isocyanate groups (n=1 or 2) there are useful as synthetic resin precursors. In the above formulaem represents an integer of from 1 to 3, andn represents 0, 1 or 2, and the sum of m+n is 2 or 3,R.sub.1 represents an aliphatic hydrocarbon group which is optionally cyano-substituted and which has from 1 to 6 carbon atoms, a cycloaliphatic hydrocarbon group having from 5-10 carbon atoms or an araliphatic hydrocarbon group having from 7-10 carbon atoms;R.sub.2 represents a divalent aliphatic hydrocarbon group having from 2 to 6 carbon atoms, at least two carbon atoms being situated between the two nitrogen atoms;R.sub.3 and R.sub.4 are identical or different and represent hydrogen, aliphatic hydrocarbon groups having from 1 to 18 carbon atoms, cycloaliphatic hydrocarbon groups having from 5 to 10 carbon atoms or aromatic hydrocarbon groups having from 6 to 10 carbon atoms, or the two groups R.sub.3 and R.sub.4 together with the carbon atom of the heterocyclic ring may also form a 5-membered or 6-membered cycloaliphatic ring; andR.sub.5 represents an (m+n)-valent group such as that which can be obtained by the removal of m+n isocyanate groups from an (m+n)-valent polyisocyanate.
    • 本发明涉及通过使式“IMAGE”的环状胺与式R 5(NCO)m + n的多异氰酸酯反应得到新一类化合物,得到所述化合物的方法 作为这种化合物在聚氨酯化学中的应用。 如果这些化合物不含异氰酸酯(n = 0),它们可用作潜热的交联剂或通过热或湿气活化的硬化剂。 如果这些化合物带有游离异氰酸酯基团(n = 1或2),则可用作合成树脂前体。 在上式中,m表示1〜3的整数,n表示0,1或2,m + n的和为2或3,R1表示任意氰基取代的脂肪族烃基, 1至6个碳原子,具有5-10个碳原子的脂环族烃基或具有7-10个碳原子的芳脂族烃基; R2表示具有2至6个碳原子的二价脂族烃基,至少两个碳原子位于两个氮原子之间; R3和R4相同或不同,表示氢,具有1至18个碳原子的脂族烃基,具有5至10个碳原子的脂环族烃基或具有6至10个碳原子的芳族烃基,或两个基团R3和 R4与杂环的碳原子一起也可以形成5元或6元脂环族环; 并且R 5表示可以通过从(m + n)价多异氰酸酯除去m + n个异氰酸酯基团而得到的(m + n)价基团。
    • 4. 发明授权
    • Urethane oxazolidines
    • 聚氨酯恶唑烷
    • US4002601A
    • 1977-01-11
    • US614470
    • 1975-09-18
    • Manfred HajekKuno Wagner
    • Manfred HajekKuno Wagner
    • C07D263/04C08G18/78C08G18/80C08G18/06C07D265/04
    • C07D263/04C08G18/7881C08G18/8064
    • This invention relates to compounds corresponding to the following general formula: ##STR1## wherein M REPRESENTS AN INTEGER OF FROM 1 TO 6;N represents an integer of from 0 to 4;R.sub.1 represents an aliphatic hydrocarbon group containing from 2 to 6 carbon atoms;R.sub.2 and R.sub.3 which may be the same or different, each represents hydrogen, an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, a cycloaliphatic hydrocarbon group containing from 5 to 7 carbon atoms, or an aromatic hydrocarbon group containing from 6 to 10 carbon atoms, or when taken together with the ring carbon atom they may form a 5- or 6-membered cycloaliphatic hydrocarbon ring;R.sub.4 represents an aliphatic hydrocarbon group containing from 2 to 6 carbon atoms; andR.sub.5 represents a residue of the type which may be obtained by removing the isocyanate groups from an organic (n + m)-valent polyisocyanate.The invention also relates to a process for preparing urethanes which contain oxazolidine groups and optionally isocyanate groups, characterized in that N-hydroxyalkyl-oxazolidines are reacted with organic polyisocyanates at an OH/NCO ratio of from 1:1 to 1:6.
    • 本发明涉及对应于以下通式的化合物:其中M代表1至6的整数; N表示从0到4的整数; R1表示含有2至6个碳原子的脂族烃基; R 2和R 3可以相同或不同,各自表示氢,含有1至4个碳原子的脂族烃基,含有5至7个碳原子的脂环族烃基或含有6至10个碳原子的芳族烃基 或者当与环碳原子一起时,它们可以形成5-或6-元环脂族烃环; R4表示含有2至6个碳原子的脂族烃基; R 5表示通过从有机(n + m)价多异氰酸酯中除去异氰酸酯基而得到的残基。
    • 8. 发明授权
    • Process for the production of microcapsules
    • 微胶囊生产工艺
    • US4428983A
    • 1984-01-31
    • US310923
    • 1981-10-13
    • Ulrich NehenManfred HajekNorbert WeimannManfred Dahm
    • Ulrich NehenManfred HajekNorbert WeimannManfred Dahm
    • A61K9/50B01J13/14B01J13/16C09J5/00B01J13/02B05D7/00
    • B01J13/16Y10T428/2985Y10T428/2989
    • A process for encapsulating products in a polymer by interfacial polymerization, in which a stabilized dispersion of droplets of a first liquid which is to be encapsulated or a stabilized dispersion of solid particles which are to be encapsulated is formed in a continuous phase of a second liquid, and wherein one of the two capsule wall-forming reaction components is present in free form while the other of the two capsule wall-forming reaction components is present in reversibly blocked form, both reaction components are present in the first or second liquid without reacting with one another and the reaction component which is present in reversibly blocked form is deblocked by means of water present in the second or first liquid and then reacts with the reaction component present in free form to form a polymeric capsule wall, the droplets of the first liquid or the solid particles being encapsulated in small capsules consisting of polymeric material.
    • 通过界面聚合将产物包封在聚合物中的方法,其中待包封的第一液体的液滴的稳定分散体或待被包封的固体颗粒的稳定化分散体形成在第二液体的连续相中 ,并且其中两个胶囊壁形成反应组分中的一个以游离形式存在,而两个胶囊壁形成反应组分中的另一个以可逆阻挡的形式存在,两个反应组分都存在于第一或第二液体中而没有反应 彼此之间并且以可逆阻挡形式存在的反应组分通过存在于第二或第一液体中的水解封,然后与游离形式存在的反应组分反应形成聚合物胶囊壁,第一 液体或固体颗粒被包封在由聚合物材料组成的小胶囊中。