会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Method for producing long chain polyether polyols without reprocessing
    • 不再加工生产长链聚醚多元醇的方法
    • US06482993B1
    • 2002-11-19
    • US09673583
    • 2000-10-18
    • Jörg HofmannPramod Gupta
    • Jörg HofmannPramod Gupta
    • C07C4311
    • B01J31/0227B01J2231/48C08G65/2642C08G65/266
    • This invention relates to a process for the production of long-chain polyether polyols without working up, in which oligomeric, alkoxylated starter compounds having molecular weights of 200 to 1000 are first obtained by catalysis with perfluoroalkylsulfonates of the metals of group III A of the periodic system of elements (in accordance with the IUPAC convention of 1970) from low molecular weight starters by reaction with alkylene oxides at reaction temperatures of 80 to 200° C. and catalyst concentrations of 5 to 200 ppm, which oligomeric, alkoxylated starter compounds are then converted without working up and removal of the catalyst by means of highly active DMC catalysts at a catalyst concentration of 30 ppm or below, relative to the quantity of polyether polyol to be produced, by reaction with alkylene oxides into higher molecular weight, long-chain polyether polyols.
    • 本发明涉及一种不加工的长链聚醚多元醇的制备方法,其中分子量为200〜1000的低聚烷氧基化起始化合物首先通过周期性的IIIA族金属的全氟烷基磺酸盐的催化而得到 在低分子量起始化合物的反应温度为80〜200℃,催化剂浓度为5〜200ppm的条件下,通过与环氧烷烃反应,从低分子量起始剂中分离出元素系统(按照IUPAC惯例) 通过高活性DMC催化剂处理和除去催化剂,催化剂浓度为30ppm或更低,相对于待生产的聚醚多元醇的量,通过与烯化氧反应成较高分子量的长链 聚醚多元醇。
    • 28. 发明授权
    • Radiation curable compositions and their use
    • 可辐射固化组合物及其用途
    • US5360863A
    • 1994-11-01
    • US101518
    • 1993-08-02
    • Jurgen MeixnerWolfgang FischerPramod Gupta
    • Jurgen MeixnerWolfgang FischerPramod Gupta
    • C08F299/04C08F283/01C08G63/52C08G63/676C08L67/06C09D4/00C09D167/06C09K3/10
    • C08G63/676C08L67/06C09D167/06
    • The present invention relates to compositions which may be cured by radical polymerization at room temperature and containA) 20 to 100 parts by weight of .alpha.,.beta.-ethylenically unsaturated polyesters which are the reaction products ofa) a dicarboxylic acid component containing i) 40 to 100 carboxyl equivalent % of .alpha.,.beta. ethylenically unsaturated dicarboxylic acids and/or their anhydrides and ii) 0 to 60 carboxyl equivalent % of dicarboxylic acids and/or their anhydrides other than those set forth in i) withb) an alcohol component containing i) 25 to 100 hydroxyl equivalent % of alkoxylated 2-butene-1,4-diols having an average molecular weight 130 to 400 and ii) 0 to 75 hydroxyl equivalent % of mono- or poly- hydric alcohols having a molecular weight of 32 to 400 other than those set forth in i) wherein the amounts of a) and b) are chosen such that equivalent ratio of carboxyl groups to hydroxyl groups is no more than 1:1,B) 0 to 80 parts by weight of compounds containing (meth)acryloyl groups and/or vinyl ether groups,wherein the sum of the parts by weight of A) and B) is 100, based on the weight of components A) and B), provided that when components A) and B) are used in a weight ratio exceeding 9:1, component a) contains at least 90 carboxyl equivalent % of component ai) and component b) contains at least 40 hydroxyl equivalent % component bi). The present invention also relates to the use of these compositions as binders for coating, patching or sealing compositions and for the production of molded bodies.
    • 本发明涉及可在室温下通过自由基聚合固化并含有A)20至100重量份的α,β-烯属不饱和聚酯的组合物,其为a)包含i)的二羧酸组分的反应产物 至100个羧基当量%的α,β-烯键式不饱和二羧酸和/或它们的酸酐,和ii)除i)中所列出的那些以外的二羧酸和/或其酸酐的0至60羧基当量%,b)含有 i)平均分子量为130〜400的25〜100个羟基当量%的烷氧基化2-丁烯-1,4-二醇,和ii)分子量为32的单 - 或多元醇的0〜75羟基当量% 至a 400),其中选择a)和b)的量使得羧基与羟基的当量比不超过1:1,B)0至80重量份的化合物含有 g(甲基)丙烯酰基和/或乙烯基醚基,其中A)和B)的重量份之和为100,基于组分A)和B)的重量,条件是当组分A)和B )以重量比超过9:1使用,组分a)含有至少90个羧基当量%的组分ai),组分b)含有至少40个羟基当量%组分bi)。 本发明还涉及这些组合物作为粘合剂用于涂覆,修补或密封组合物以及用于生产模塑体的用途。