Preparation of biuret-containing polyisocyanates
    11.
    发明授权
    Preparation of biuret-containing polyisocyanates 失效
    制备含缩二脲的聚异氰酸酯

    公开(公告)号:US07022874B2

    公开(公告)日:2006-04-04

    申请号:US08894156

    申请日:1996-02-01

    摘要: A process for the preparation of polyisocyanates which contain one or more biuret groups, by reacting a) an aliphatic or cycloaliphatic isocyanate containing two or more isocyanate groups (isocyanate a) with b) a tertiary alcohol or a mixture of water and a tertiary alcohol (biuretizing agent b) at from 100 to 250° C., which comprises carrying out the reaction in the presence c) of a stabilizer (c) which constitutes a catalytic amount of urea, ammonia, biuret, a urea derivative of the formula I in which R1, R2, R3 and R4 are hydrogen, C1 to C10 alkyl or C5 to C10 aryl, or a carboxamide of the formula II in which R5 is C1 to C12 alkyl which is unsubstituted or in which 1, 2 or 3 hydrogen atoms are replaced by a radical

    摘要翻译: 一种制备含有一个或多个缩二脲基团的多异氰酸酯的方法,通过使a)含有两个或多个异氰酸酯基团(异氰酸酯a)的脂族或脂环族异氰酸酯与b)叔醇或水与叔醇的混合物 缩合剂b)在100至250℃下进行,其包括在c)中进行反应,c)稳定剂(c)构成催化量的尿素,氨,缩二脲,式I的脲衍生物在 其中R 1,R 2,R 3和R 4是氢,C 1〜 C 1 -C 10烷基或C 5至C 10芳基或式II的甲酰胺,其中R 5, C 1 -C 12烷基是未被取代的或其中1,2或3个氢原子被基团取代的C 1 -C 12烷基

    Coating agents which can be hardened by the addition of isocyanate groups as well as by the radiation-induced addition of activated c-c double covalent bonds
    13.
    发明授权
    Coating agents which can be hardened by the addition of isocyanate groups as well as by the radiation-induced addition of activated c-c double covalent bonds 有权
    可以通过加入异氰酸酯基团以及通过辐射诱导的活化的c-c双共价键的加成来硬化的涂层剂

    公开(公告)号:US06617413B1

    公开(公告)日:2003-09-09

    申请号:US09868712

    申请日:2001-08-29

    IPC分类号: C08G8300

    摘要: Compounds having isocyanate groups with or without blocking, allophanate groups and free-radically polymerizable C—C double bonds, the C—C double bonds being in activated form by virtue of a carbonyl group attached directly to them or by virtue of an oxygen atom in ether function (activated double bonds), derived from polyisocyanates and alcohols A which in addition to the alcohol group also carry an activated double bond (compounds I). The invention additionally relates to radiation-curable formulations and coating compositions comprising the compounds I, to methods for coating using these substances, and to coated articles produced using these methods. Furthermore, the invention relates to the use of the compounds I in radiation-curable compositions such as in casting compositions, dental compounds, composite materials, sealing compounds, adhesives, troweling compounds, printing inks, in photostructurable compositions such as solder resists, photoresists, photopolymeric printing plates, and stereolithography resins.

    摘要翻译: 具有或不具有封闭性的异氰酸酯基团,脲基甲酸酯基和可自由基聚合的CC双键的化合物,CC双键由于直接连接到它们上的羰基或借助醚官能团中的氧原子而被活化 双键),衍生自多异氰酸酯和除了醇基之外还含有活化双键的醇A(化合物I)。 本发明还涉及可辐射固化的制剂和包含化合物I的涂料组合物,使用这些物质的涂覆方法以及使用这些方法制备的涂覆制品。 此外,本发明涉及化合物I在可光固化组合物中的用途,所述可辐射固化组合物例如在可光致热组合物如阻焊剂,光致抗蚀剂,光致抗蚀剂等中的浇铸组合物,牙科化合物,复合材料,密封化合物,粘合剂,t刻化合物,印刷油墨, 光聚合印刷版和立体光刻树脂。

    Reactive polymers and isocyanate-reactive polymers obtainable therefrom
    14.
    发明授权
    Reactive polymers and isocyanate-reactive polymers obtainable therefrom 有权
    可由其获得的反应性聚合物和异氰酸酯反应性聚合物

    公开(公告)号:US06433124B1

    公开(公告)日:2002-08-13

    申请号:US09561239

    申请日:2000-04-28

    IPC分类号: C08G1830

    摘要: In a compound of the formula I (reactive polymer), L is a, polymer, XY is a reactive radical which is inert toward NCO groups and splits off one or more protective groups Y under acidic, neutral or basic conditions and the radical X bears, after Y has been split off, at least two groups which are reactive toward isocyanates. Also provided are processes for preparing such a polymer and for preparing V a polymer polyol which is obtainable by reacting a polymer of the formula I with an acid or base. A polymer polyol as is obtainable by treatment of a reactive polymer according to the present invention in the neutral, acidic or basic range can be used to produce a polyaddition product or polycondensation product.

    摘要翻译: 在式I化合物(反应性聚合物)中,L是聚合物,XY是在酸性,中性或碱性条件下对NCO基团是惰性的并分解一个或多个保护基团Y的反应性基团,并且基团X 在Y分离后,至少有两组对异氰酸酯反应。 还提供了制备这种聚合物和制备V聚合物多元醇的方法,其可通过使式I的聚合物与酸或碱反应而获得。 通过根据本发明的反应性聚合物在中性,酸性或碱性范围内处理可获得的聚合物多元醇可用于制备加聚产物或缩聚产物。

    Hydraulic Drive, in Particular for Two-Cylinder Thick Matter Pumps
    16.
    发明申请
    Hydraulic Drive, in Particular for Two-Cylinder Thick Matter Pumps 失效
    液压驱动,特别适用于双缸稠油泵

    公开(公告)号:US20070204608A1

    公开(公告)日:2007-09-06

    申请号:US10592396

    申请日:2006-02-02

    IPC分类号: F16D31/02

    摘要: The invention relates to a hydraulic drive, especially for two-cylinder thick matter pumps. Said hydraulic drive comprises at least one main pump (10) embodied as a hydraulic variable displacement pump, and two hydraulically actuatable drive cylinders (20,22) that are each connected to a connection line (16,18) of the main pump (10) by means of pump connections mounted on one end thereof, forming a closed hydraulic circuit, and communicate with each other at the ends thereof opposing the pump connections (24,26) by means of a swinging oil line (28). The hydraulic drive also comprises a feed pump (42), by which means pressurized oil is fed from an oil tank to the current low-pressure side into the hydraulic circuit, and a flushing branch (52), by which means a flushing oil flow is branched off from the current low-pressure side under a limited pressure into the oil tank (44). In order to avoid low-pressure influxes during the reversal process of the main pump (10), the flushing oil flow is blocked and then released in a time-delayed manner during each reversal process of the main pump (10), independently of the differential pressure in the connection lines.

    摘要翻译: 本发明涉及一种液压驱动装置,尤其涉及两缸厚料泵。 所述液压驱动器包括体现为液压可变排量泵的至少一个主泵(10)和两个液压可致动的驱动缸(20,22),其各自连接到主泵(10)的连接管线(16,18) )通过安装在其一端上的泵连接件形成一个闭合的液压回路,并通过摆动油管线(28)在其与泵连接件(24,26)相对的端部处相互连通。 液压驱动装置还包括供给泵(42),通过该供给泵将加压油从油箱向当前低压侧供给到液压回路中,以及冲洗分支(52),通过该冲洗分支 在有限压力下从当前低压侧分支到油箱(44)中。 为了避免在主泵(10)的反转过程中的低压流入,在主泵(10)的每个反向过程期间,冲洗油流被阻断然后以时间延迟的方式释放,而与 连接线中的压差。

    Vinyl polymers produced by a two-stage procedure and their use as
surface coating binders
    18.
    发明授权
    Vinyl polymers produced by a two-stage procedure and their use as surface coating binders 失效
    通过两阶段方法制备的乙烯基聚合物及其作为表面涂层粘合剂的用途

    公开(公告)号:US5391631A

    公开(公告)日:1995-02-21

    申请号:US67806

    申请日:1993-05-27

    摘要: A vinyl polymer is obtainable by polymerizing vinyl monomers in at least two stages by a procedure in which, in a first stage, from 5 to 95% by weight of vinyl monomers are polymerized in an organic solvent or in the absence of a solvent and, in the second stage, from 5 to 95% by weight of the vinyl monomers are polymerized in the presence of the vinyl polymer obtained in the first stage, likewise in an organic solvent or in the absence of a solvent, with the proviso that the polymerization in the second stage is carried out under conditions under which an average molecular weight M.sub.n, which is at least 1,000 higher compared with that of the vinyl polymer, the first stage of results for the vinyl monomers of the second stage in the absence of the vinyl polymer obtained in the first stage.

    摘要翻译: 乙烯基聚合物可通过至少两个阶段的乙烯基单体聚合而得到,其中在第一阶段中,在有机溶剂中或在不存在溶剂的情况下,将5至95重量%的乙烯基单体聚合, 在第二阶段中,将5至95重量%的乙烯基单体在第一阶段获得的乙烯基聚合物的存在下,同样在有机溶剂中或在不存在溶剂的情况下聚合,条件是聚合 在第二阶段中,在与乙烯基聚合物相比至少高1000倍的平均分子量Mn的情况下进行第二阶段的乙烯基单体在没有乙烯基的情况下的第一阶段 聚合物在第一阶段获得。