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    • 4. 发明授权
    • Polysiloxane-polyoxyalkylene block copolymers with different
polyoxyalkylene blocks in the average molecule
    • 在平均分子中具有不同聚氧化烯嵌段的聚硅氧烷 - 聚氧化烯嵌段共聚物
    • US5306737A
    • 1994-04-26
    • US112504
    • 1993-08-26
    • Georg BurkhartRolf-Dieter LangenhagenAndreas WeierVolker Zellmer
    • Georg BurkhartRolf-Dieter LangenhagenAndreas WeierVolker Zellmer
    • C08G77/38C08G77/46C08G81/00C08G8/00
    • C08G77/46
    • Polysiloxane-polyoxyalkylene block copolymers having different polyoxyalkylene blocks in the average molecule are prepared. The mixture of the polyoxyalkylene blocks consists of at least one polyoxyalkylene group A and at least one polyoxyalkylene group B and/or at least one polyoxyalkylene group C, each polyoxyalkylene group A having an average molecular weight of 600 to 5,500 and consisting of 20 to 90% by weight of oxyethylene units and 80 to 10% by weight of oxypropylene units, polyoxyalkylene group B having an average molecular weight of 500 to 5,000 and consisting of 2 to 19% by weight of oxyethylene units and 98 to 81% by weight of oxypropylene units, polyoxyalkylene group C having an average molecular weight of 1,500 to 4,500 and consisting of oxypropylene units. Up to 20% by weight of the oxypropylene units is replaceable by oxybutylene units and the molar ratio of polyoxyalkylene groups A to the sum of the polyoxyalkylene groups B and C is 1:4 to 4:1. The block copolymers are highly effective stabilizers for the production of flexible polyurethane foams with an excellent ratio of cell fineness of the foam to air permeability of the foam.
    • 制备平均分子中具有不同聚氧化烯嵌段的聚硅氧烷 - 聚氧化烯嵌段共聚物。 聚氧化烯嵌段的混合物由至少一个聚氧化烯基团A和至少一个聚氧化烯基团B和/或至少一个聚氧化烯基团C组成,每个聚氧化烯基团A的平均分子量为600-5,500并且由20至90 重量%的氧化乙烯单元和80〜10重量%的氧化丙烯单元,聚氧化烯基B的平均分子量为500〜5000,由2〜19重量%的氧化乙烯单元和98〜81重量%的氧化丙烯 单元,平均分子量为1500〜4500的聚氧化烯基C,由氧化丙烯单元构成。 高达20重量%的氧化丙烯单元可以由氧丁烯单元替代,聚氧化烯基团A与聚氧化烯基团B和C之和的摩尔比为1:4至4:1。 嵌段共聚物是用于生产具有优异的泡沫细胞细度与泡沫的透气性的柔性聚氨酯泡沫塑料的高效稳定剂。
    • 6. 发明授权
    • Method for producing cold polyurethane foams
    • 生产冷聚氨酯泡沫的方法
    • US5633292A
    • 1997-05-27
    • US568888
    • 1995-12-07
    • Anette BruneGeorg BurkhartVolker Zellmer
    • Anette BruneGeorg BurkhartVolker Zellmer
    • C08J9/00C08G18/24C08G18/61
    • C08J9/0061C08J2375/04C08J2483/00
    • The invention relates to a method for the production of high resilience polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of between about 4800 and 6500 g/mole and at least 70% primary hydroxyl groups and optionally contain fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers, compounds of the general formula ##STR1## being used as stabilizers, in which R.sup.1 is the same or different in the average molecule and represents a methyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --(CH.sub.2).sub.a --C.sub.6 H.sub.3 (R.sup.2).sub.2 (a=0 or 1; R.sup.2 =--O--CH.sub.3), with the proviso that at least one R.sup.1 group is a group having the formula --CH.sub.2 --CH.sub.2 --(CH.sub.2)a--C.sub.6 H.sub.3 (R.sup.2).sub.2n has an average numerical value of 2 to 11,m has an average numerical value of 1 to 6,with the proviso that the quotient p=(n+m+2)/m is 1.66 to 12.
    • 本发明涉及通过使通常具有约4800至6500g / mol平均分子量和至少70%伯羟基的高反应性多元醇的混合物反应生产高回弹性聚氨酯泡沫的方法,并且任选地含有 填料,多官能异氰酸酯,胺活化剂,交联剂,锡催化剂,发泡剂和稳定剂,用作稳定剂的通式为“IMAGE”的化合物,其中R 1在平均分子中相同或不同, 基团或通式-CH 2 -CH 2 - (CH 2)a -C 6 H 3(R 2)2(a = 0或1; R 2 = -O-CH 3)的基团,条件是至少一个R 1基团是基团 具有式-CH 2 -CH 2 - (CH 2)a -C 6 H 3(R 2)2 n的平均数值为2至11,m的平均数值为1至6,条件是商p =(n + m + 2)/ m为1.66〜12。
    • 10. 发明授权
    • Process for alkoxylation with DMC catalysts in a loop reactor with ejector
    • 在具有喷射器的环管反应器中用DMC催化剂进行烷氧基化的方法
    • US08058388B2
    • 2011-11-15
    • US12277903
    • 2008-11-25
    • Andreas SellmannIrina Neisius-Sellmann, legal representativeVolker Zellmer
    • Andreas SellmannVolker Zellmer
    • C08G65/34
    • C08G65/2609C08G65/2615C08G65/2663C08G65/2696
    • The invention relates to a process for preparing polyethers of the formula (I) R1—(CHR2CHR3—O)n—H  (I) where n=1 to 12 000, R1=a radical comprising at least one carbon atom and R2 and R3 are each independently H or a hydrocarbon radical, where the units designated with the index n may be the same or different (the R2 and R3 radicals in the different units n may thus be the same or different), by alkoxylating a starter compound which comprises the R1 radical in the presence of a double metal cyanide catalyst (DMC catalyst) in a loop reactor, which is characterized in that the alkoxylation is performed in a loop reactor which has an ejector mixing nozzle, in which all substances involved in the reaction or assistants can be added to the circulated reaction mixture, an alkylene oxide or a plurality of different alkylene oxides being metered into the reaction mixture via the ejector mixing nozzle at the same time (random addition) or at different times (block addition).
    • 本发明涉及一种制备式(I)的聚醚的方法,其中n = 1至12000,R 1 =包含至少一个碳原子的基团,R 2和R 3(R 2) 各自独立地为H或烃基,其中以索引n表示的单元可以相同或不同(不同单元n中的R 2和R 3基团可以相同或不同),通过将起始化合物烷氧化,所述起始化合物包含 在环状反应器中在双金属氰化物催化剂(DMC催化剂)存在下的R 1基团,其特征在于烷氧基化在具有喷射混合喷嘴的环管反应器中进行,其中涉及反应的所有物质或 可以向循环的反应混合物中加入助剂,同时通过喷射混合喷嘴(随机添加)或不同时间(嵌段加成)将烯化氧或多种不同的烯化氧计量加入到反应混合物中。