利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

48 条记录 (耗时 0.014 秒)

    Method for the prevention of hydrolysis of polyesterification catalysts
    31.
    发明授权
    Method for the prevention of hydrolysis of polyesterification catalysts 失效
    防止聚酯化催化剂水解的方法

    公开(公告)号：US4433135A

    公开(公告)日：1984-02-21

    申请号：US398029

    申请日：1982-07-14

    申请人： Ronald W. Worley ,  David A. Johnson

    发明人： Ronald W. Worley ,  David A. Johnson

    IPC分类号： C08G63/82 ,  C08G63/04 ,  C08G63/32

    CPC分类号： C08G63/82

    摘要： The use of aluminum sulfate as a dessicant for drying the starting materials used in polymerization reactions employing readily hydrolyzable catalysts is disclosed. The aluminum sulfate is allowed to remain in the reaction mixture during polymerization, and, indeed, may advantageously be allowed to remain in the reaction product without any deleterious effect.

    摘要翻译： 公开了使用硫酸铝作为干燥剂来干燥聚合反应中使用的易水解催化剂的原料。 在聚合期间允许硫酸铝保留在反应混合物中，并且实际上可以有利地保留在反应产物中而没有任何有害影响。

    Catalyst system for a polyethylene terephthalate polycondensation
    32.
    发明授权
    Catalyst system for a polyethylene terephthalate polycondensation 失效
    聚对苯二甲酸乙二醇酯缩聚催化剂体系

    公开(公告)号：US4356299A

    公开(公告)日：1982-10-26

    申请号：US345859

    申请日：1982-02-04

    申请人： Michael S. Cholod ,  Nipun M. Shah

    发明人： Michael S. Cholod ,  Nipun M. Shah

    IPC分类号： C08G63/00 ,  C08G63/82 ,  C08G63/85 ,  C08G63/04 ,  C08G63/34

    CPC分类号： C08G63/85

    摘要： A polyethylene terephthalate polycondensation catalyst system comprises from about 2 parts to about 18 parts of catalyst metal in the form of an alkyl titanate and from about 40 parts to about 300 parts of catalyst metal in the form of an antimony compound, each of said metals being per million parts of polymer product.

    摘要翻译： 聚对苯二甲酸乙二醇酯缩聚催化剂体系包含约2份至约18份呈钛酸烷基酯形式的催化剂金属和约40份至约300份呈锑化合物形式的催化剂金属，每种所述金属为 每百万份聚合物产品。

    Melt process for preparing copolyesters using triarylphosphine catalysts
    34.
    发明授权
    Melt process for preparing copolyesters using triarylphosphine catalysts 失效
    使用三芳基膦催化剂制备共聚酯的熔融方法

    公开(公告)号：US4250281A

    公开(公告)日：1981-02-10

    申请号：US22542

    申请日：1979-03-21

    申请人： Edgar E. Riecke

    发明人： Edgar E. Riecke

    IPC分类号： C08G63/00 ,  C08G63/19 ,  C08G63/82 ,  C08G63/87 ,  C08L67/02 ,  C08G63/04

    CPC分类号： C08G63/87 ,  C08G63/19

    摘要： Copolyesters having random sequence distributions can be prepared in the melt phase in the presence of triarylphosphine catalysts. These copolyesters are prepared by reacting a first polyester with either a second polyester or polyester precursors. They are useful for the formulation of films, fibers, binders, adhesives, molded articles, sheeting and lacquers.

    摘要翻译： 具有随机序列分布的共聚酯可以在三芳基膦催化剂存在下在熔融相中制备。 这些共聚酯通过使第一聚酯与第二聚酯或聚酯前体反应来制备。 它们可用于制备膜，纤维，粘合剂，粘合剂，模塑制品，片材和漆。

    Copolycarbonates, methods of manufacture, and uses thereof
    35.
    发明授权
    Copolycarbonates, methods of manufacture, and uses thereof 有权
    共聚碳酸酯，制造方法及其用途

    公开(公告)号：US07498397B2

    公开(公告)日：2009-03-03

    申请号：US11372804

    申请日：2006-03-10

    申请人： James A. Mahood

    发明人： James A. Mahood

    IPC分类号： C08G63/04 ,  C08G64/00

    CPC分类号： C08G64/04 ,  C08G64/28

    摘要： A copolycarbonate of the formula wherein 5 to 50 mole percent of the total number of R1 groups is derived from a monomer of formula (2) wherein each Rf is independently at each occurrence a halogen atom, a hydrocarbon group having 1 to 10 carbons, or a halogen substituted hydrocarbon group having 1 to 10 carbons, and n is 0 to 4; and 50 to 95 mole percent of the R1 groups are derived from a dihydroxy compound of formula HO—R5—OH, wherein at least 60% of the R5 groups are aromatic, and the dihydroxy compound of formula (3) is not a compound of formula (2), and wherein the copolycarbonate comprises at least 10% fewer carbonate linkages of formula (4) than would be theoretically obtained in a random copolymer made from the same ratio of the monomer of formula (2) and the dihydroxy compound of formula (3).

    摘要翻译： 一种下式的共聚碳酸酯，其中R 1基团总数的5至50摩尔％衍生自式（2）的单体，其中每个Rf在每次出现时独立地为卤素原子，具有1至10个碳的烃基或 碳原子数1〜10的卤素取代烃基，n为0〜4。 并且50至95摩尔％的R 1基团衍生自式HO-R 5 -OH的二羟基化合物，其中至少60％的R 5基团是芳族的，并且式（3）的二羟基化合物不是 式（2）表示，并且其中共聚碳酸酯包含比在由式（2）的单体与式（2）的二羟基化合物相同的比例制备的无规共聚物中理论上获得的式（4）的至少10％的碳酸酯键 （3）。

    Soil release promoting pet-poet copolymer, method of producing same and use thereof in detergent composition having soil release promoting property
    36.
    发明授权
    Soil release promoting pet-poet copolymer, method of producing same and use thereof in detergent composition having soil release promoting property 失效
    土壤释放促进宠物诗共聚物，其生产方法及其在具有促进排污性的洗涤剂组合物中的用途

    公开(公告)号：US4785060A

    公开(公告)日：1988-11-15

    申请号：US901218

    申请日：1986-08-28

    申请人： Meshulam Nagler

    发明人： Meshulam Nagler

    IPC分类号： C08G63/66 ,  C08G63/672 ,  C08G63/82 ,  C08G63/91 ,  C08G81/00 ,  C11D3/37 ,  C11D17/00 ,  C08G63/04 ,  C08G63/34 ,  C08G65/32 ,  C08L71/02

    CPC分类号： C11D17/0004 ,  C08G63/672 ,  C08G63/82 ,  C08G81/00 ,  C11D3/3715

    摘要： A soil release promoting copolymer of polyethylene terephthalate and polyoxyethylene terephthalate (PET-POET) having a weight average molecular weight in the range of 15,000 to 35,000, and a PET:POET molar ratio of about 2:1 to 6:1, is prepared by reacting polyethylene terephthalate with polyethylene glycol in the presence of a catalyst system including both antimony trioxide and calcium acetate or both titanium isopropoxide and sodium isopropoxide. The PET-POET copolymer provides improved soil release properties for oily and greasy stains from polyester fabrics at high and low wash temperatures and is stable even at high alkalinity levels. The starting PET can advantageously be obtained from scrap bottles.

    摘要翻译： 通过重均分子量在15,000至35,000，PET：POET摩尔比为约2:1至6:1的聚对苯二甲酸乙二醇酯和聚氧乙烯对苯二甲酸乙二醇酯（PET-POET）的促进剥离促进共聚物，通过 在包括三氧化锑和乙酸钙或二异丙醇钛和异丙醇钠的催化剂体系的存在下，使聚对苯二甲酸乙二醇酯与聚乙二醇反应。 PET-POET共聚物在高和低洗涤温度下为聚酯织物提供了油性和油脂污渍的改善的去污性能，即使在高碱度水平下也是稳定的。 起始PET可以有利地从废料瓶获得。

    Esterification process with calcium hydroxyaryl phosphonate-organosilicon heterocycle catalyst system
    37.
    发明授权
    Esterification process with calcium hydroxyaryl phosphonate-organosilicon heterocycle catalyst system 失效
    羟基芳基膦酸钙 - 有机硅杂环催化剂体系的酯化过程

    公开(公告)号：US4775497A

    公开(公告)日：1988-10-04

    申请号：US922919

    申请日：1986-10-24

    申请人： Stephen D. Pastor ,  Richard W. Thomas

    发明人： Stephen D. Pastor ,  Richard W. Thomas

    IPC分类号： C08G63/87 ,  C09F1/04 ,  C08G63/04 ,  C08G63/38 ,  C09F5/08

    CPC分类号： C09F1/04 ,  C08G63/87

    摘要： An esterification process particularly for the preparation of rosin esters, polyesters and polymeric esters wherein aliphatic or aromatic carboxylic acids are reacted with appropriate alcohols in the presence of catalytic amounts of a mixture of a calcium hydroxyaryl phosphonate and an organosilicon heterocycle, the presence of said mixture serving to reduce the time necessary for complete esterification and to provide esters with increased oxidation stability and better color.

    摘要翻译： 特别是用于制备松香酯，聚酯和聚合酯的酯化方法，其中在催化量的羟基芳基膦酸钙和有机硅杂环的混合物存在下，将脂族或芳族羧酸与合适的醇反应，所述混合物的存在 用于减少完全酯化所需的时间，并提供具有增加的氧化稳定性和更好颜色的酯。

    Polycondensation catalyst
    39.
    发明授权
    Polycondensation catalyst 失效

    公开(公告)号：US4668762A

    公开(公告)日：1987-05-26

    申请号：US861374

    申请日：1986-05-09

    申请人： Naoya Ogata

    发明人： Naoya Ogata

    IPC分类号： C08G18/16 ,  C08G63/87 ,  C08G69/04 ,  C08G63/04 ,  C08G63/68

    CPC分类号： C08G69/04 ,  C08G18/168 ,  C08G63/87

    摘要： Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200.degree. C. or greater. However, by utilizing the catalyst system of the present invention condensation polymers can be synthesized at much lower temperatures. These catalyst systems are comprised of (1) a silicon-phosphorus composition which contains at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; and (2) at least one acid acceptor. For example, P(OSiR.sub.3).sub.3 wherein R can be an aliphatic or aromatic hydrocarbon radical, can be used in conjunction with a basic solvent as a catalyst system. Polymeric agents having pendant diphenylphosphine dichloride groups can also be used in conjunction with an acid acceptor as a catalyst system.