Silicone polyether copolymers and polyurethane foams prepared therefrom
    1.
    发明授权
    Silicone polyether copolymers and polyurethane foams prepared therefrom 失效
    硅氧烷聚醚共聚物和由其制备的聚氨酯泡沫

    公开(公告)号:US5045571A

    公开(公告)日:1991-09-03

    申请号:US540173

    申请日:1990-06-19

    IPC分类号: C08G65/336 C08G77/46 C08J9/00

    摘要: Novel compositions of silicone/polyether block copolymers are provided which are useful as surfactants in several classes of polyurethane foam production. While conventional copolymers have a polysiloxane backbone with pendant polyethers, the surfactants of the present invention are the reverse with siloxane pendants on a polyether chain. These novel non-hydrolyzable polysiloxane polyoxyalkylene copolymers which are characterized by an "inverted" structure, i.e., polyoxyalkylene backbones with lateral and/or terminally pendant polysiloxanes, represent species that are of a narrow molecular weight and compositional distribution and are free of unreacted polyether or non-modified silicone oil diluent. These surfactants are useful in various urethan foam systems and can also display aqueous wetting properties.

    摘要翻译: 提供了新的聚硅氧烷/聚醚嵌段共聚物的组合物,其可用作几种类型的聚氨酯泡沫体生产中的表面活性剂。 虽然常规共聚物具有聚对苯二甲酸聚硅氧烷主链,但是本发明的表面活性剂与聚醚链上的硅氧烷垂饰相反。 以“反转”结构为特征的这些新型的非水解性聚硅氧烷聚氧化烯共聚物,即具有侧面和/或末端侧基聚硅氧烷的聚氧化烯主链,代表具有窄分子量和组成分布的物质,并且不含未反应的聚醚或 非改性硅油稀释剂。 这些表面活性剂可用于各种氨基甲酸酯泡沫体系,并且还可以显示水性润湿性质。

    Method of quenching
    4.
    发明授权
    Method of quenching 失效
    淬火方法

    公开(公告)号:US4584033A

    公开(公告)日:1986-04-22

    申请号:US749782

    申请日:1985-06-28

    CPC分类号: C21D1/60 Y02P10/212

    摘要: A method of quenching which comprises the steps of (a) immersing a metal heated to an elevated temperature in a quenchant composition comprising an aqueous-solution of a sufficiently hydrophilic water-soluble or water-dispersible organic polymer of the formula:Y[AR].sub.xto provide a solution containing 15.0 weight percent of polymer and a balance of water with a Drag Out Value of less than about 40, preferably less than about 35 and most preferably less than about 25 under Standard Conditions; whereinY is the residue of an active hydrogen-containing organic copound following active hydrogen removal;x is an integer having a value of at least 1; wherein for values of x greater than 1 each AR segment of the polymer is the same or different;A is a random or block polyoxyalkylene residue having units derived from ethylene oxide and at least one other lower alkylene oxide having 3 or 4 carbon atoms; andR is hydrogen or an hydrolytically stable organic moiety;wherein for values of x greater than 1 each AR segment of the polymer is the same or different; with the proviso that R is only hydrogen or an organic moiety less hydrophobic than propane either when x is 1 and Y is at least as hydrophobic as hexane or when x is greater than 1 and at least one other R, individually or in combination is sufficiently hydrophobic to depress the cloud point of a 10% by weight aqueous solution of the corresponding Y[AR].sub.x, wherein R is hydrogen, by 10.degree. F.; and (b) removing the metal from the quenchant when a desired low temperature is reached.

    摘要翻译: 一种淬火方法,其包括以下步骤:(a)将被加热到高温的金属浸入包含下式的足够亲水的水溶性或水分散性有机聚合物的水溶液的骤冷剂组合物中:Y [AR] x以提供含有15.0重量%的聚合物和余量的水的溶液,在标准条件下的Drag Out值小于约40,优选小于约35,最优选小于约25; 其中Y是活性氢去除后的含活性氢有机物的残基; x是至少为1的整数; 其中对于x大于1的值,聚合物的每个AR链段相同或不同; A是具有衍生自环氧乙烷和至少一种具有3或4个碳原子的其它低级环氧烷的单元的无规或嵌段聚氧化烯残基; 并且R是氢或水解稳定的有机部分; 其中对于x大于1的值,聚合物的每个AR链段相同或不同; 条件是当x为1且Y至少与己烷一样疏水时或当x大于1时,R仅为氢或有机部分疏水性较小的丙烷,而x大于1,并且至少一个其它R单独或组合足够 将10重量%相对应的Y [AR] x(其中R为氢)的10重量%水溶液的浊点降低10℃。 和(b)当达到所需的低温时,从淬火剂中除去金属。

    Electrochemical benzylic oxidations
    5.
    发明授权
    Electrochemical benzylic oxidations 失效
    电化学苄基氧化

    公开(公告)号:US4277318A

    公开(公告)日:1981-07-07

    申请号:US140610

    申请日:1980-04-15

    IPC分类号: C25B3/02

    CPC分类号: C25B3/02

    摘要: Benzylic methylene groups are oxidized electrolytically to ketones using a combination of a biphasic aqueous-organic solvent system, a phase transfer catalyst, and a manganese compound in a divided cell.

    摘要翻译: 使用双相含水有机溶剂体系,相转移催化剂和锰化合物的组合将苄基亚甲基电解为酮。

    Open-cell polyurethane foam and process for its manufacture
    8.
    发明申请
    Open-cell polyurethane foam and process for its manufacture 有权
    开孔聚氨酯泡沫及其制造方法

    公开(公告)号:US20090069457A1

    公开(公告)日:2009-03-12

    申请号:US11900374

    申请日:2007-09-11

    IPC分类号: C08L75/04

    摘要: There is provided a predominantly open-cell polyurethane foam obtained from a predominantly open-cell polyurethane foam-forming reaction medium which comprises: a) at least one polyol; b) at least one polyisocyanate; c) at least one catalyst; d) water; e) a predominantly open-cell polyurethane foam-forming amount of at least one surfactant which is a balanced, substantially linear polyether-polysiloxane ABA′ block copolymer; and, f) optionally, at least one additional component selected from the group consisting of other polymer and/or copolymer, chain extender, crosslinker, non-aqueous blowing agent, filler, reinforcement, pigment, tint, dye, colorant, flame retardant, antioxidant, antiozonant, UV stabilizer, anti-static agent, biocide and biostat.

    摘要翻译: 提供了主要是开孔聚氨酯泡沫形成反应介质获得的主要是开孔聚氨酯泡沫,其包括:a)至少一种多元醇; b)至少一种多异氰酸酯; c)至少一种催化剂; d)水; e)主要是开孔聚氨酯泡沫形成量的至少一种表面活性剂,其是平衡的,基本上直链的聚醚 - 聚硅氧烷ABA'嵌段共聚物; 和f)任选的至少一种选自其它聚合物和/或共聚物,扩链剂,交联剂,非水发泡剂,填料,增强剂,颜料,着色剂,染料,着色剂,阻燃剂, 抗氧化剂,抗臭氧剂,紫外线稳定剂,抗静电剂,杀生物剂和生物灭菌剂。

    Method of quenching
    9.
    再颁专利
    Method of quenching 失效
    淬火方法

    公开(公告)号:USRE33445E

    公开(公告)日:1990-11-20

    申请号:US334762

    申请日:1989-04-10

    IPC分类号: C21D1/60

    CPC分类号: C21D1/60

    摘要: A method of quenching which comprises the steps of (a) immersing a metal heated to an elevated temperature in a quenchant composition comprising an aqueous-solution of a sufficiently hydrophilic water-soluble or water-dispersible organic polymer of the formula:Y[AR].sub.xto provide a solution containing .[.15.0.]. .Iadd.from about 1 to about 20 .Iaddend.weight percent of polymer and a balance of water with a Drag Out Value of less than about 40, preferably less than about 35 and most preferably less than about 25 under Standard Conditions; whereinY is the residue of an active hydrogen-containing organic copound following active hydrogen removal;x is an integer having a value of at least 1; wherein for values of x greater than 1 each AR segment of the polymer is the same or different;A is a random or block polyoxyalkylene residue having units derived from ethylene oxide and at least one other lower alkylene oxide having 3 or 4 carbon atoms; andR is hydrogen or an hydrolytically stable organic moiety;wherein for values of x greater than 1 each AR segment of the polymer is the same or different; with the proviso that R is only hydrogen or an organic moiety less hydrophobic than propane either when x is 1 and Y is at least as hydrophobic as hexane or when x is greater than 1 and at least one other R, individually or in combination is sufficiently hydrophobic to depress the cloud point of a 10% by weight aqueous solution of the corresponding Y[AR].sub.x, wherein R is hydrogen, by 10.degree. F.; and (b) removing the metal from the quenchant when a desired low temperature is reached.