Preparation of polysiloxane/polyoxyalkylene copolymer useful as
stabilizers in making polyurethane foams
    1.
    发明授权
    Preparation of polysiloxane/polyoxyalkylene copolymer useful as stabilizers in making polyurethane foams 失效
    制备聚硅氧烷/聚氧化烯共聚物可用作制备聚氨酯泡沫体中的稳定剂

    公开(公告)号:US4355171A

    公开(公告)日:1982-10-19

    申请号:US165571

    申请日:1980-07-02

    摘要: Polyorganopolysiloxane/polyoxyalkylene block compolymers suitable for use as stabilizers in making soft polyurethane foams, of the formula[R.sup.1 Si(OSiR.sub.2).sub.n ].sub.m Z.sub.m-1 (OR.sup.2).sub.m+2in whichR is an optionally halogen-substituted alkyl group with up to 4 C atoms,R.sup.1 is the substituent R or a phenyl radical,R.sup.2 is an aliphatic, optionally unsaturated radical with up to 18 C atoms or a group of the formulaR.sup.3 (OCH.sub.2 CH.sub.2).sub.x (OCH.sub.2 CH).sub.y -,Z is the difunctional unit --O-- or ##STR1## R.sup.3 is a hydrocarbon radical with up to 4C atoms, R.sup.4 each independently is a hydrogen atom or R.sup.3,n is from 3 to 30,m is from 1 to 15,x is from 0 to 68,y is from 0 to 52,x+y is from 1 to 68, andP is from 2 to 12,are produced by reacting an organopolysiloxane of the formulaR.sup.1 Si(OSiR.sub.2).sub.n U.sub.3-a-b Cl.sub.a W.sub.bin whichU is a radical of a lower monobasic carboxylic acid with up to 4 C atoms,W is a radical of a fluorinated alkanesulphonic acid,a.ltoreq.1, andb.ltoreq.0,5,with a mixture of R.sup.2 OH and H-Z-H, in the presence of a base in an organic solvent, the relative proportion of the reactants being determined by the value of m.

    摘要翻译: 适合用作制备软质聚氨酯泡沫的稳定剂的聚有机聚硅氧烷/聚氧化烯嵌段共聚物,其具有式[R1Si(OSiR2)n] mZm-1(OR2)m +2,其中R是任选卤素取代的烷基,最多达4个 C原子,R 1是取代基R或苯基,R 2是具有至多18个C原子的脂肪族,任选的不饱和基团或式R3(OCH2CH2)x(OCH2CH)y-的基团,Z是双官能单元 - O-或 R3是具有至多4C原子的烃基,R4各自独立地为氢原子或R3,n为3至30,m为1至15,x为0至68,y为 0至52,x + y为1至68,P为2至12,通过使式R 1 Si(OSiR 2)n U 3-a-b Cla W b的有机聚硅氧烷(其中U为低级 具有多达4个C原子的一元羧酸,W是氟化烷基磺酸基团,其中R 1 OH和HZH的混合物在碱存在下 有机溶剂 t,反应物的相对比例由m值确定。

    Preparation of polysiloxane/polyoxyalkylene copolymer useful as
stabilizers in making polyurethane foams
    2.
    发明授权
    Preparation of polysiloxane/polyoxyalkylene copolymer useful as stabilizers in making polyurethane foams 失效
    制备聚硅氧烷/聚氧化烯共聚物可用作制备聚氨酯泡沫体中的稳定剂

    公开(公告)号:US4497962A

    公开(公告)日:1985-02-05

    申请号:US388565

    申请日:1982-06-15

    摘要: Polyorganopolysiloxane/polyoxyalkylene block copolymers suitable for use as stabilizers in making soft polyurethane foams, of the formula[R.sup.1 Si(OSiR.sub.2).sub.n ].sub.m Z.sub.m-1 (OR.sup.2).sub.m+2in whichR is an optionally halogen-substituted alkyl group with up to 4 C atoms,R.sup.1 is the substituent R or a phenyl radical,R.sup.2 is an aliphatic, optionally unsaturated radical with up to 18 C atoms or a group of the formulaR.sup.3 (OCH.sub.2 CH.sub.2).sub.x (OCH.sub.2 CH).sub.y --,Z is the difunctional unit --O-- or ##STR1## R.sup.3 is a hydrocarbon radical with up to 4C atoms, R.sup.4 each independently is a hydrogen atom or R.sup.3,n is from 3 to 30,m is from 1 to 15,x is from 0 to 68,y is from 0 to 52,x+y is from 1 to 68, andp is from 2 to 12,are produced by reacting an organopolysiloxane of the formulaR.sup.1 Si(OSiR.sub.2).sub.n U.sub.3-a-b Cl.sub.a W.sub.bin whichU is a radical of a lower monobasic carboxylic acid with up to 4 C atoms,W is a radical of a fluorinated alkanesulphonic acid,a.ltoreq.1, andb.ltoreq.0,5,with a mixture of R.sup.2 OH and H-Z-H, in the presence of a base in an organic solvent, the relative proportion of the reactants being determined by the value of m.

    摘要翻译: 适合用作制备软质聚氨酯泡沫的稳定剂的聚有机聚硅氧烷/聚氧化烯嵌段共聚物,式[R1Si(OSiR2)n] mZm-1(OR2)m +2,其中R是任选卤素取代的烷基,最多达4个 C原子,R 1是取代基R或苯基,R 2是具有至多18个C原子的脂肪族,任选的不饱和基团或式R3(OCH2CH2)x(OCH2CH)y-的基团,Z是双官能单元 - O-或 R3是具有至多4C原子的烃基,R4各自独立地为氢原子或R3,n为3至30,m为1至15,x为0至68,y为 0至52,x + y为1至68,p为2至12,通过使式R 1 Si(OSiR 2)n U 3-a-b Cl a W b的有机聚硅氧烷(其中U为低级单碱基 具有至多4个C原子的羧酸,W是氟化烷基磺酸的基团,其中R 1 OH和HZH的混合物在碱存在下在 有机溶剂, 反应物的相对比例由m值决定。

    Coating agent for non-stick coatings
    3.
    发明授权
    Coating agent for non-stick coatings 失效
    不粘涂料涂层剂

    公开(公告)号:US4366286A

    公开(公告)日:1982-12-28

    申请号:US204680

    申请日:1980-11-05

    摘要: In a sheet coated on both surfaces with non-stick coatings, one of the coatings being more non-stick than the other, the improvement which comprises employing as the lesser non-stick coating a composition according to claim 1 by weight consisting essentially of(A) about 10 parts of a polyorganosiloxane with hydroxyl end groups and with a viscosity of 10.sup.2 to 5.10.sup.4 Pas,(B) 0.5-5 parts of at least one cross-linking agent of the formulaRSiX.sub.3whereinX is a hydrolyzable group andR is an alkyl, alkenyl, aryl or aminoalkyl group with 1-12 C atoms,(C) 0.1-2 parts of an organic tin compound as the catalyst and(D) 100-500 parts by weight of an organic solvent, the improvement which comprises additionally including, and(E) 0.1-20 parts of a graft copolymer comprising(i) 25-75% of an essentially linear polyorganosiloxane with hydroxyl end groups and with a viscosity of 100 to 500,000 mPas and(ii) 10-70% of at least one organic polymer with a molecular weight of 500 to 100,000, linked to (i) via bridges formed on polymerization of(iii) 10-60% of one or more monomers containing at least one aliphatic double bond.

    摘要翻译: 在涂覆有具有不粘涂层的两个表面上的片材中,一个涂层比另一个涂层更粘不粘,其改进包括使用根据权利要求1所述的组合物作为较小不粘涂层,该组合物基本上由( A)约10份具有羟基端基的聚有机硅氧烷,粘度为102〜5.104Pa·s,(B)0.5-5份至少一种式RSiX 3的交联剂,其中X为可水解基团,R为 具有1-12个碳原子的烷基,烯基,芳基或氨基烷基,(C)0.1-2份作为催化剂的有机锡化合物和(D)100-500重量份的有机溶剂,其改进包括 另外包括和(E)0.1-20份的接枝共聚物,其包括(i)25-75%的具有羟基端基的基本上线性的聚有机硅氧烷和粘度为100-500,000mPas,和(ii)10-70% 至少一种分子量为500至100,000的有机聚合物,与( i)通过在(iii)10-60%的一种或多种含有至少一个脂族双键的单体的聚合上形成的桥。

    Preparation of multi-branched silicon-functional polyorgano-siloxanes
    5.
    发明授权
    Preparation of multi-branched silicon-functional polyorgano-siloxanes 失效
    制备多支链硅官能聚有机硅氧烷

    公开(公告)号:US4281144A

    公开(公告)日:1981-07-28

    申请号:US144101

    申请日:1980-04-28

    CPC分类号: C08G77/14 C08G77/10

    摘要: In the preparation of multi-branched equilibrated mixed acyloxy-containing and chlorine-containing organo polysiloxanes by reacting a chlorosilane of the formulaR.sub.a SiCl.sub.4-awhereina=0 or 1,with at least one organosiloxane containing units of the formulaR.sub.2 R'SiO.sub.1/2, RR'SiO, R'SiO.sub.3/2 and/or SiO.sub.2whereinR is hydrogen or an aliphatic, aromatic, saturated or unsaturated, optionally halogen-substituted or cyano-substituted monovalent hydrocarbon radical with up to 8 C atoms andR' is chlorine, hydroxyl, hydrogen or an aliphatic, aromatic, saturated or unsaturated, optionally halogen-substituted or cyano-substituted monovalent hydrocarbon radical with up to 8 C atoms,in proportions such that the number of all the SiCl groups is always at least 1.5 times greater than the number of SiOH groups, in the presence of (a) fluoroalkanesulphonic acid or salt thereof and (b) relative to the chlorine atoms bonded to silicon, at least 1.1 times the molar amount of a concentrated monobasic carboxylic acid, the improvement which comprises adding a portion of the carboxylic acid in a first stage, and in a second stage adding the balance of the carboxylic acid along with water in the amount required to achieve the desired degree of branching. Advantageously the fluoroalkanesulphonic acid is a perfluoroalkanesulphonic acid containing up to 8 carbon atoms, and it or its salt is employed in about 0.05 to 1.5% by weight of chlorosilane plus organosilane, the carboxylic acid is acetic acid, the reaction is carried out at a temperature up to about 135.degree. C., the organosilane comprises a cyclosiloxane of the formula(RR'.dbd.SiO).sub.3-5,and about half the acetic acid is added in each stage.

    摘要翻译: 在通过使式RaSiCl4-a(其中a = 0或1)的氯硅烷与至少一种含有式R 2 R 1 SiO 1/2单元的有机硅氧烷反应制备多支化平衡的含酰氧基和含氯有机聚硅氧烷的方法中, ,R'SiO 3/2和/或SiO 2,其中R是氢或具有至多8个C原子的脂族,芳族,饱和或不饱和的任选卤素取代或氰基取代的一价烃基,R'是氯 ,羟基,氢或具有至多8个C原子的脂族,芳族,饱和或不饱和的任选的卤素取代或氰基取代的一价烃基,其比例使得所有SiCl基团的数量总是至少为1.5倍 在(a)氟烷基磺酸或其盐和(b)相对于与硅键合的氯原子的存在下,SiOH基团的数量为至少1.1倍浓度的一元羧酸a的摩尔量 cid,其改进包括在第一阶段中加入一部分羧酸,在第二阶段中,将羧酸的余量与水一起加入达到所需分枝度所需的量。 有利地,氟代烷基磺酸是含有至多8个碳原子的全氟烷基磺酸,其盐或其盐用于氯化硅加有机硅烷约0.05-1.5%,羧酸是乙酸,反应在一个温度 有机硅烷包含式(RR'= SiO)3-5的环硅氧烷,在每个阶段加入约一半的乙酸。

    Preparation of silicon-functional polyorganosiloxanes
    7.
    发明授权
    Preparation of silicon-functional polyorganosiloxanes 失效
    硅官能聚有机硅氧烷的制备

    公开(公告)号:US4177201A

    公开(公告)日:1979-12-04

    申请号:US974412

    申请日:1978-12-29

    CPC分类号: C08G77/10 C08G77/14

    摘要: A process for the preparation of an equilibrated acyloxy-containing organopolysiloxane comprising reacting at a temperature of up to 135.degree. C. a chlorosilane of the formulaR.sub.a R'.sub.b SiCl.sub.(4-a-b)whereina=0, 1, 2 or 3b=0, 1, 2 or 3, anda+b is at most 3,or a partial hydrolysis product thereof, with at least one organosiloxane containing the units[R.sub.2 R"--SiO.sub.178 ] [RR"--SiO] [R"--SiO.sub.3/2 ] [SiO.sub.2 ]whereinR and R' each independently is hydrogen or an optionally halogen or cyano-substituted monovalent hydrocarbon radical with up to 18 C atoms, andR" is hydrogen, chlorine, hydroxyl, or an optionally halogen or cyano-substituted monovalent hydrocarbon radical with up to 18 C atoms,in the presence of a proton acid siloxane-equilibration catalyst, and at least about 1.1 times the molar amount of a monobasic carboxylic acid based on the silicon-bonded chlorine atom, the number of all the Si--Cl groups in the reactants exceeding the number of all the Si--OH groups.

    摘要翻译: 一种用于制备平衡的含酰氧基的有机聚硅氧烷的方法,包括在高达135℃的温度下反应式为RaR'bSiCl(4-ab)的氯硅烷,其中a = 0,1,2或3b = 0 至少一个含有[R2R“ - SiO178] [RR” - SiO] [R“ - ]的单体的有机硅氧烷,其中a + b为3以下,或其部分水解产物, SiO 3/2] [SiO 2]其中R和R'各自独立地是氢或具有至多18个C原子的任选的卤素或氰基取代的一价烃基,R“是氢,氯,羟基或任选的卤素或 具有至多18个C原子的氰基取代的一价烃基,在质子酸硅氧烷平衡催化剂的存在下,和基于硅键合的氯原子的一元羧酸的摩尔量的至少约1.1倍, 的反应物中的所有Si-Cl基团超过所有Si-OH基团的数目。