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    • 2. 发明授权
    • Defoamer formulations
    • 消泡剂配方
    • US08222303B2
    • 2012-07-17
    • US12825746
    • 2010-06-29
    • Christian HerzigWillibald BurgerMartina JoachimbauerJosef Wimmer
    • Christian HerzigWillibald BurgerMartina JoachimbauerJosef Wimmer
    • B01D19/04C08G77/46
    • C08G77/46B01D19/0409C08G77/12C08K3/36C08K9/06C08L83/04C08L83/12C11D3/3738D21C3/28D21H21/12C08L83/00C08L2666/54
    • (A) Siloxane-based antifoams and(B) silicone polyethers prepared by reacting organopolysiloxanes (1) containing 0.05% to 1.6% by weight of Si-bonded hydrogen atoms with unsaturated polyethers (3) of the formulae: CH2═CR1—(CH2)aO(C2H4O)bR1  (Ia) CH2═CR1—(CH2)aO(C2H4O)b(C3H6O)cR1  (Ib) CH2═CR1—(CH2)aO(C3H6O)cR1  (Ic), where R1 is a hydrogen or a C1-6 hydrocarbon radical, a is 0 to 16, b is 1 to 50, and c is 1 to 50, wherein the sum b+c is ≧10 and at least two different polyethers (Ia), (Ib) and (Ic) are used, and optionally further reacting the reaction product with organopolysiloxanes (2) containing from 0.01% to 0.5% by weight of Si-bonded hydrogen atoms, wherein the first and second step reactions take place with a hydrosilylation catalyst, and the weight ratio of Si-bonded hydrogen in organopolysiloxane (1) to Si-bonded hydrogen in organopolysiloxane (2) is at least 1.5.
    • (A)基于硅氧烷的消泡剂和(B)通过使含有0.05重量%至1.6重量%的与Si键合的氢原子的有机聚硅氧烷(1)与下式的不饱和聚醚(3)反应制备的硅氧烷聚醚:CH 2 = CR 1 - (CH 2 )aO(C 2 H 4 O)b R 1(Ia)CH 2 = CR 1 - (CH 2)a O(C 2 H 4 O)b(C 3 H 6 O)c R 1(Ib)CH 2 = CR 1(CH 2)a O(C 3 H 6 O)c R 1(Ic) C 1-6烃基,a为0至16,b为1至50,c为1至50,其中总和b + c为≥10,并且至少两种不同的聚醚(Ia),(Ib)和( Ic),并且任选地使反应产物与含有0.01重量%至0.5重量%的与Si键合的氢原子的有机聚硅氧烷(2)进一步反应,其中第一和第二步骤反应用氢化硅烷化催化剂进行,重量 有机聚硅氧烷(1)中Si键合氢与硅键合氢在有机聚硅氧烷(2)中的比例至少为1.5。
    • 3. 发明申请
    • Defoamer Formulations
    • 消泡剂配方
    • US20110021688A1
    • 2011-01-27
    • US12825746
    • 2010-06-29
    • Christian HerzigWillibald BurgerMartina JoachimbauerJosef Wimmer
    • Christian HerzigWillibald BurgerMartina JoachimbauerJosef Wimmer
    • C08L83/05C08G77/06
    • C08G77/46B01D19/0409C08G77/12C08K3/36C08K9/06C08L83/04C08L83/12C11D3/3738D21C3/28D21H21/12C08L83/00C08L2666/54
    • (A) Siloxane-based antifoams and (B) silicone polyethers prepared by reacting organopolysiloxanes (1) containing 0.05% to 1.6% by weight of Si-bonded hydrogen atoms with unsaturated polyethers (3) of the formulae: CH2═CR1—(CH2)aO(C2H4O)bR1  (Ia) CH2═CR1—(CH2)aO(C2H4O)b(C3H6O)cR1  (Ib) CH2═CR1—(CH2)aO(C3H6O)cR1  (Ic), where R1 is a hydrogen or a C1-6 hydrocarbon radical, a is 0 to 16, b is 1 to 50, and c is 1 to 50, wherein the sum b+c is ≧10 and at least two different polyethers (Ia), (Ib) and (Ic) are used, and optionally further reacting the reaction product with organopolysiloxanes (2) containing from 0.01% to 0.5% by weight of Si-bonded hydrogen atoms, wherein the first and second step reactions take place with a hydrosilylation catalyst, and the weight ratio of Si-bonded hydrogen in organopolysiloxane (1) to Si-bonded hydrogen in organopolysiloxane (2) is at least 1.5.
    • (A)基于硅氧烷的消泡剂和(B)通过使含有0.05重量%至1.6重量%的与Si键合的氢原子的有机聚硅氧烷(1)与下式的不饱和聚醚(3)反应制备的硅氧烷聚醚:CH 2 = CR 1 - (CH 2 )aO(C 2 H 4 O)b R 1(Ia)CH 2 = CR 1 - (CH 2)a O(C 2 H 4 O)b(C 3 H 6 O)c R 1(Ib)CH 2 = CR 1(CH 2)a O(C 3 H 6 O)c R 1(Ic) C 1-6烃基,a为0至16,b为1至50,c为1至50,其中总和b + c为≥10,并且至少两种不同的聚醚(Ia),(Ib)和( Ic),并且任选地使反应产物与含有0.01重量%至0.5重量%的与Si键合的氢原子的有机聚硅氧烷(2)进一步反应,其中第一和第二步骤反应用氢化硅烷化催化剂进行,重量 有机聚硅氧烷(1)中Si键合氢与硅键合氢在有机聚硅氧烷(2)中的比例至少为1.5。