Defoamer formulations
    2.
    发明授权
    Defoamer formulations 有权
    消泡剂配方

    公开(公告)号:US07645360B2

    公开(公告)日:2010-01-12

    申请号:US11915941

    申请日:2006-05-24

    IPC分类号: D21H21/00

    摘要: Defoamer compositions of high effectiveness containing at least one siloxane-based antifoam and polysiloxane copolymers obtained by coupling a polysiloxane bearing active-hydrogen-containing hydrophilic polymer moieties by means of a di- or polyisocyanate.

    摘要翻译: 通过用二异氰酸酯或多异氰酸酯偶联含有含活性氢的亲水性聚合物部分的聚硅氧烷获得的含有至少一种基于硅氧烷的消泡剂和聚硅氧烷共聚物的高效消泡剂组合物。

    Process for defoaming and/or degassing organic systems
    4.
    发明授权
    Process for defoaming and/or degassing organic systems 失效
    消泡和/或脱气有机系统的工艺

    公开(公告)号:US5474709A

    公开(公告)日:1995-12-12

    申请号:US975942

    申请日:1993-02-24

    摘要: A process for defoaming and/or degassing organic systems by addition of an organopolysiloxane-containing anti-foaming agent to the organic system is characterized by the fact that the organopolysiloxane used is one composed of siloxane units having the general formulae (I) and (II), in which R is a univalent hydrocarbon residue with 1 to 18 carbon atoms per residue; A is a residue having the general formula (a), in which R.sup.1 is a residue having the formula --CR.sup.3 H--, where R.sup.3 stands for a hydrogen atom or a univalent organic residue; R.sup.2 is a residue having the formulae --CR.sup.4 H--CH.sub.2 -- or --CH.sub.2 CH.sub.2 CH.sub.2 -- where R.sup.4 stands for a hydrogen atom or a univalent organic residue; v and w represent each O or an integer, the sum of v+w being in average 0 to 16; x and y represent each 0 or 1, the sum x+y being 1 or 2; a equals 1,2 or 3; b equals 0, 1 or 2 and c equals 1 or 2, the sum b+c not exceeding 3.

    摘要翻译: PCT No.PCT / EP91 / 01896 Sec。 371日期:1993年2月24日 102(e)日期1993年2月24日PCT 1991年10月4日PCT PCT。 出版物WO92 / 05854 日期为1992年04月16日。通过向有机体系中加入含有机聚硅氧烷的消泡剂来消除和/或脱气有机体系的方法的特征在于所使用的有机聚硅氧烷是由具有一般性的硅氧烷单元 式(I)和(II),其中R是每个残基具有1至18个碳原子的一价烃残基; A是具有通式(a)的残基,其中R1是具有式-CR3H-的残基,其中R3代表氢原子或一价有机残基; R2是具有式-CR4H-CH2-或-CH2CH2CH2-的残基,其中R4代表氢原子或一价有机残基; v和w表示每个O或整数,v + w的和平均为0至16; x和y表示0或1,x + y之和为1或2; a等于1,2或3; b等于0,1或2,c等于1或2,总和b + c不超过3。

    Antifoam formulations
    5.
    发明授权
    Antifoam formulations 有权
    消泡剂配方

    公开(公告)号:US07105581B2

    公开(公告)日:2006-09-12

    申请号:US10703940

    申请日:2003-11-07

    IPC分类号: B01D19/04 C08G77/18 C08L83/12

    CPC分类号: B01D19/0409 D21H21/12

    摘要: An antifoam formulations comprise (A) antifoam agent based on siloxanes and (B) branched polyether/polysiloxane copolymers comprising structural units of the formula Y[—CnH2n—(R2SiO)m—Ap—R2Si—G]x  (I) in which Y is a multivalent, optionally heteroatom-containing hydrocarbon radical, R are monovalent optionally halogenated hydrocarbon radicals, A is a radical —R2Si—R2—(R2SiO)m—, G is a monovalent radical —CfH2f-2k—Z or a divalent radical —CnH2n— bonded to a radical Y, Z —(R6)v—(OCH2CH2)a[OCH2CH(CH3)]b[OCH2CH(CH2CH3)]c—OR3, in which R3 is hydrogen, a hydrocarbon radical, or a radical R—C(O)—, R6 is a divalent hydrocarbon radical, v is 0 or 1, a, b and c are 0 or an integer between 1 and 1000, the sum (a+b+c) being from 2 to 2000, x is 3 to 10, f is 2 to 12, k is 0 or 1, n is 2 to 12, m is at least 1, and p is 0 or a positive integer, the branched polyether/polysiloxane copolymers (B) containing on average at least one group Z.

    摘要翻译: 消泡剂制剂包含(A)基于硅氧烷的消泡剂和(B)包含结构单元的支化聚醚/聚硅氧烷共聚物,其包含式<?in-line-formula description =“In-Line Formulas”end =“lead”→> Y (-C 2)n - (R 2 SiO)m - - - - - - - - - (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中 Y是多价,任选地含杂原子的烃基,R是一价任意卤代的烃基,A是基团-R 2 -Si-R 2 - (R SUB > 2 SiO)m - ,G是单价基团-C 2 H 2 f-2k -Z或二价基团-C n - 键合到基团Y,Z <βin-line-formula description =“In-line Formulas”end =“lead”→> - (R 6))] > 3 ,<?in-line-formula description =“In-line Formulas”end =“tail”?>其中R 3是氢,烃基或基团 RC(O) - ,R 6是二价烃基,v是0或1,a,b和c是0或1和1000之间的整数,总和(a + b + c )为2〜2000,x为3〜10,f为2〜12,k为0或1,n为2〜12,m为1以上,p为0或正整数, 含有平均至少一个基团Z的聚硅氧烷共聚物(B)

    Organopolysiloxanes containing ester groups
    6.
    发明授权
    Organopolysiloxanes containing ester groups 失效
    含有酯基的有机聚硅氧烷

    公开(公告)号:US5446119A

    公开(公告)日:1995-08-29

    申请号:US279382

    申请日:1994-07-25

    CPC分类号: C08G77/20 C08G77/38 C08G77/46

    摘要: Organopolysiloxanes which contain ester groups and comprise units of the formula ##EQU1## in which R may be an identical or different monovalent, SiC-bonded hydrocarbon radical having 1 to 18 carbon atoms,A may be an identical or different radical of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, c, v, w, s, t,is 0 or an integer, the sum of s and tbeing an integer from 1 to 20,x is 0 or 1,y is 0 or 1, the sum of x and y being 1 or 2,a is 0, 1, 2 or 3, andb is 0, 1 or 2,with the proviso that the sum of a and b is less than or equal to 3 and the organopolysiloxane contains at least one radical A per molecule.

    摘要翻译: 含有酯基并且包含式(I)的单元的有机聚硅氧烷,其中R可以是具有1至18个碳原子的相同或不同的一价SiC键合烃基,A可以是相同或不同的 式中,R1,R2,R3,c,v,w,s,t为0或整数,s和t之和为1〜20的整数,x为0或1 ,y为0或1,x和y之和为1或2,a为0,1,2或3,b为0,1或2,条件是a和b的和小于 或等于3,有机聚硅氧烷每分子含有至少一个基团A.

    Defoamer formulations
    7.
    发明授权
    Defoamer formulations 失效
    消泡剂配方

    公开(公告)号:US08222303B2

    公开(公告)日:2012-07-17

    申请号:US12825746

    申请日:2010-06-29

    IPC分类号: B01D19/04 C08G77/46

    摘要: (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.

    摘要翻译: (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。

    Defoamer Formulations
    8.
    发明申请
    Defoamer Formulations 失效
    消泡剂配方

    公开(公告)号:US20110021688A1

    公开(公告)日:2011-01-27

    申请号:US12825746

    申请日:2010-06-29

    IPC分类号: C08L83/05 C08G77/06

    摘要: (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.

    摘要翻译: (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。