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
    • 23. 发明授权
    • Polyether carbonate polyols made via double metal cyanide (DMC) catalysis
    • 通过双金属氰化物(DMC)催化制备的聚醚碳酸酯多元醇
    • US07977501B2
    • 2011-07-12
    • US11491680
    • 2006-07-24
    • Karl W. HaiderKenneth G. McDanielJohn E. HayesJianzhong Shen
    • Karl W. HaiderKenneth G. McDanielJohn E. HayesJianzhong Shen
    • C07C69/96C08G64/02C08G64/32
    • C08G64/183C08G64/32C08G65/2663
    • The present invention relates to a polyether carbonate polyol made by copolymerizing a starter molecule with carbon dioxide, at a pressure ranging from about 10 psia to about 2,000 psia, and an alkylene oxide, at a temperature ranging from about 50° C. to about 190° C. and in the presence of from about 0.001 wt. % to about 0.2 wt. % of a substantially non-crystalline double metal cyanide (DMC) catalyst, wherein the polyol has an incorporated carbon dioxide content of from about 1 wt. % to about 40 wt. %, wherein the ratio of cyclic carbonate by-product to total carbonate is less than about 0.3 and wherein the weight percentages are based on the weight of the polyol. The inventive polyether carbonate polyols may find use in producing polyurethane foams, elastomers, coatings, sealants and adhesives with improved properties.
    • 本发明涉及一种聚醚碳酸酯多元醇,其通过将起始分子与二氧化碳在约10psia至约2,000psia的压力和烯化氧的温度范围内共聚而制备,温度为约50℃至约190℃ 在约0.001wt。 %至约0.2wt。 %的基本上非结晶的双金属氰化物(DMC)催化剂,其中所述多元醇具有约1wt。 %至约40wt。 %,其中环状碳酸酯副产物与总碳酸盐的比例小于约0.3,并且其中重量百分比基于多元醇的重量。 本发明的聚醚碳酸酯多元醇可用于生产具有改进性能的聚氨酯泡沫,弹性体,涂料,密封剂和粘合剂。
    • 24. 发明授权
    • Two-stage process for the preparation of polycarbonate copolyether diols
    • 用于制备聚碳酸酯共聚醚二醇的两阶段方法
    • US5795952A
    • 1998-08-18
    • US818939
    • 1997-03-17
    • Alberto Greco
    • Alberto Greco
    • B01J23/02C07B61/00C07C68/06C07C69/96C08G18/44C08G64/18C08G64/30C08G64/32C08G64/00
    • C08G64/305C08G18/44C08G64/183
    • A process for the preparation of polycarbonate copolyether diols comprising two successive reaction stages wherein in the first stage the precursor, bisdimethylcarbonate of polyether diols is synthesized by reacting, in a reactor equipped with a distillation column, one or more polyetherglycols with dimethyl carbonate, in the presence of a basic catalyst selected from the group consisting of an oxide, a hydroxide, a carbonate and an alcoholate of a metal belonging to the group of alkaline or earth-alkaline metals and in the second stage, the precursor, after being freed from the catalyst and excess dimethylcarbonate, is converted to polycarbonate copolyether diols by transesterification reaction with polyetherglycols in the presence of a solvent and an organometallic catalyst selected from compounds of tin, lead, titanium, zirconium and antimonium, said polycarbonate polyether diols having utility as additives in the field of polyurethane end-products, thermoelastomers, paints and adhesives.
    • 一种制备聚碳酸酯共聚醚二醇的方法,包括两个连续的反应阶段,其中在第一阶段中,聚醚二醇的前体,双二甲基碳酸酯通过在装有蒸馏塔的反应器中与一种或多种聚醚二醇与碳酸二甲酯反应合成, 存在选自属于碱金属或碱土金属组的金属的氧化物,氢氧化物,碳酸盐和醇化物的碱性催化剂,并且在第二阶段中,所述前体在从 催化剂和过量的二甲基碳酸酯通过在溶剂和选自锡,铅,钛,锆和锑的化合物的有机金属催化剂的存在下与聚醚二醇进行酯交换反应而转化为聚碳酸酯共聚醚二醇,所述聚碳酸酯聚醚二醇可用作添加剂 聚氨酯最终产品领域,热弹性体,涂料和粘合剂 活塞