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
    • 2. 发明申请
    • METHOD FOR THE PREPARATION OF A PARTICULATE REVERSIBLY CROSSLINKED POLYMERIC MATERIAL
    • 制备可反应交联聚合材料的方法
    • WO2011154759A1
    • 2011-12-15
    • PCT/IB2010/001388
    • 2010-06-08
    • DOW GLOBAL TECHNOLOGIES LLCMUKHERJEE, JoydeepWASSERMAN, Eric, Paul
    • MUKHERJEE, JoydeepWASSERMAN, Eric, Paul
    • C08F8/00C08B11/10C08B15/00C08B17/06
    • C08B3/10C08B15/005
    • The present invention relates to method for the preparation of a particulate reversibly-crosslinked polymeric material comprising: treating a particulate water-soluble hydroxyl-functional polymer in a liquid phase comprising a solvent mixture in that the hydroxyl-functional polymer is insoluble containing an organic solvent and water; a tetracarboxylic acid dianhydride represented by formula (I), 10 (I) wherein: U and V are independently selected from CH, N and P; 15 X is selected from a single bond, a saturated divalent (C 1 -C 10 ) hydrocarbon group, O, S, NR, and PR, wherein R is selected from hydrogen and (C 1 -C 4 ) alkyl; n and m are independently selected from 0 and 1; w is 1 or 2 with the proviso that; 20 if w is 1 then Y is X and if w is 2 then Y is selected from H and (C 1 -C 4 ) alkyl, whereby there is no bond between both Y; and optionally a catalyst; to form a particulate reversibly-crosslinked polymeric material and 25 to a particulate reversibly-crosslinked polymeric material obtainable thereby.
    • 本发明涉及制备颗粒可逆交联的聚合物材料的方法,包括:在包含溶剂混合物的液相中处理颗粒状水溶性羟基官能聚合物,因为羟基官能聚合物不溶于含有机溶剂 和水; 由式(I)表示的四羧酸二酐,10(I)其中:U和V独立地选自CH,N和P; 15 X选自单键,饱和二价(C1-C10)烃基,O,S,NR和PR,其中R选自氢和(C1-C4)烷基; n和m独立地选自0和1; w为1或2,条件是: 20,如果w为1,则Y为X,如果w为2,则Y选自H和(C 1 -C 4)烷基,由此两者之间不存在键; 和任选的催化剂; 以形成可逆交联的聚合物颗粒和25至可由其获得的可逆交联的聚合物颗粒。
    • 9. 发明申请
    • METHOD FOR THE PRODUCTION OF LOW-VISCOUS WATER-SOLUBLE CELLULOSE ETHERS
    • 方法制备纤维素低粘度水
    • WO00032636A1
    • 2000-06-08
    • PCT/EP1999/008779
    • 1999-11-15
    • C08B11/08C08B11/10C08B11/12C08B11/193C08B11/20
    • C08B11/20C08B11/193
    • Disclosed is a method for producing low-viscuous water-soluble cellulose ethers by oxidative degradation of higher viscuous cellulose ethers with hydrogen peroxide. The higher viscuous cellulose ether is intensely mixed with an aqueous solution of hydrogen peroxide at temperatures of 65-125 DEG C. The mixing ratio is chosen in such a way that the quantity of hydrogen peroxide is 0.1-10 wt. % in relation to the dry cellulose ether, that the solids content of the mixture is not lower than 25 wt. % in relation to the whole quantity of the mixture and that the mixture is then kept in motion at temperatures of 65-125 DEG C until at least approximately 90 % of the hydrogen peroxide is used.
    • 一种用于通过与过氧化氢,该方法包括使高粘度的纤维素醚集中与过氧化氢的在65-125℃,其中,所述混合比被选择为使得过氧化氢的含量温度的水溶液中混合高粘度的纤维素醚的氧化降解制备低粘度水的纤维素醚的方法, 基于干纤维素醚,01-10重量%,将混合物25重量%,基于混合物的总量计的固体含量不低于下降,然后将混合物在65-125℃下的温度下,直到 的的过氧化氢移动,至少约90%的消费,成立。