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22 条记录 (耗时 0.045 秒)

    Branched polyamidoamines
    11.
    发明授权
    Branched polyamidoamines 失效
    支链聚酰胺胺

    公开(公告)号：US4435548A

    公开(公告)日：1984-03-06

    申请号：US258158

    申请日：1981-04-27

    申请人： Donald A. Tomalia ,  Larry R. Wilson ,  Jerry R. Conklin

    发明人： Donald A. Tomalia ,  Larry R. Wilson ,  Jerry R. Conklin

    IPC分类号： C08G69/48 ,  C08G69/00 ,  C08G73/02 ,  D21H17/55 ,  D21H17/56 ,  C08G69/26

    CPC分类号： D21H17/55 ,  C08G69/00 ,  C08G73/0286

    摘要： Branched polyamidoamines bearing a plurality of pendant aminoamide moieties exhibit properties which are superior to the linear polyamidoamines from which the branched polymers are derived. The branched polyamidoamine is readily prepared by reacting a linear polyamidoamine with an alkyl acrylate or methacrylate to prepare a polymer with pendant ester moieties. The ester moieties are then reacted with an alkylene diamine or a polyalkylene polyamine to produce the pendant aminoamide groups.

    摘要翻译： 带有多个侧链氨基酰胺部分的支化聚酰氨基胺显示优于衍生支链聚合物的线性聚酰胺胺的性质。 通过使直链聚酰胺胺与丙烯酸烷基酯或甲基丙烯酸烷基酯反应以制备具有侧酯部分的聚合物，容易制备支化聚酰胺胺。 然后将酯部分与亚烷基二胺或聚亚烷基多胺反应以产生侧链氨基酰胺基团。

    Superabsorbent polymers having a slow rate of absorption
    12.
    发明授权
    Superabsorbent polymers having a slow rate of absorption 失效
    具有缓慢吸收速率的超吸收性聚合物

    公开(公告)号：US06433058B1

    公开(公告)日：2002-08-13

    申请号：US09455927

    申请日：1999-12-07

    申请人： Joseph L. Weir ,  Larry R. Wilson

    发明人： Joseph L. Weir ,  Larry R. Wilson

    IPC分类号： C08K318

    CPC分类号： C08J3/245 ,  C08J3/12 ,  C08J2300/14

    摘要： Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal salt and has an Absorption Rate Index of at least about 5 minutes. Such polymers are prepared by contacting a substrate water-swellable, water-insoluble polymer particle with a polyvalent metal salt solution under conditions such that there is formed a polymer having an Absorption Rate Index of at least about 5 minutes.

    摘要翻译： 吸收速度慢的超吸收性聚合物及其制备方法。 超吸收性聚合物具有缓慢的吸收速率，与共价交联剂和多价金属盐的金属交联并具有至少约5分钟的吸收率指数。 这样的聚合物是通过使底物水溶胀性水不溶性聚合物颗粒与多价金属盐溶液在使得形成具有至少约5分钟的吸收率指数的聚合物的条件下接触来制备的。

    Use of heterocyclic ammonium polyamidoamines as demulsifiers
    15.
    发明授权
    Use of heterocyclic ammonium polyamidoamines as demulsifiers 失效
    使用杂环铵聚酰胺胺作为破乳剂

    公开(公告)号：US4457860A

    公开(公告)日：1984-07-03

    申请号：US371640

    申请日：1982-04-26

    申请人： Jerry R. Conklin ,  Larry R. Wilson

    发明人： Jerry R. Conklin ,  Larry R. Wilson

    IPC分类号： B01D17/04 ,  B01D17/05 ,  C08G73/02

    CPC分类号： C08G73/0293 ,  B01D17/047

    摘要： Emulsions of oil and water are resolved by contacting the emulsions with a heterocyclic ammonium polyamidoamine having pendant and/or backbone heterocyclic ammonium moieties, e.g., an adduct of (1) polyamidoamine prepared from methyl methacrylate and ethylenediamine and (2) epichlorohydrin.

    摘要翻译： 通过使乳液与具有侧基和/或主链杂环铵部分的杂环铵聚酰胺胺接触来解决油和水的乳液，例如（1）由甲基丙烯酸甲酯和乙二胺制备的聚酰胺胺和（2）表氯醇的加合物。

    Superabsorbent polymers having a slow rate of absorption
    17.
    发明授权
    Superabsorbent polymers having a slow rate of absorption 有权
    具有缓慢吸收速率的超吸收性聚合物

    公开(公告)号：US06579958B2

    公开(公告)日：2003-06-17

    申请号：US09455926

    申请日：1999-12-07

    申请人： Larry R. Wilson

    发明人： Larry R. Wilson

    IPC分类号： C08J452

    CPC分类号： C08L51/003 ,  C08F251/00 ,  C08F265/04 ,  C08L51/02 ,  Y10T428/2982

    摘要： Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal coordination compound, has the metal of the coordination compound distributed essentially homogeneously throughout the polymer, and has an Absorption Rate Index of at least about 5 minutes. Prepare water-swellable, water-insoluble polymer particles having a slow rate of water absorption by polymerizing a monomer in the presence of a covalent crosslinking agent and a polyvalent metal coordination compound under conditions such that there is formed a polymer having reversible cationic crosslinks and such that the metal is distributed essentially homogeneously throughout the polymer particles.

    摘要翻译： 吸收速度慢的超吸收性聚合物及其制备方法。 超吸收性聚合物具有缓慢的吸收速率，与共价交联剂和多价金属配位化合物的金属交联，使配位化合物的金属基本上均匀地分布在整个聚合物中，并且具有至少的吸收率指数 约5分钟。 在共价交联剂和多价金属配位化合物存在下，通过聚合单体，使得形成具有可逆阳离子交联的聚合物等的条件，制备具有缓慢吸水速率的水溶胀性水不溶性聚合物颗粒 金属基本均匀地分布在整个聚合物颗粒中。

    Cyclic peptides
    20.
    发明授权
    Cyclic peptides 失效
    循环肽

    公开(公告)号：US4600535A

    公开(公告)日：1986-07-15

    申请号：US659201

    申请日：1984-10-09

    申请人： Donald A. Tomalia ,  Larry R. Wilson

    发明人： Donald A. Tomalia ,  Larry R. Wilson

    IPC分类号： C07D257/02

    CPC分类号： C07D257/02

    摘要： Cyclic peptides, such as 1,4,8,11-tetraazacyclotetradecane-5,12-dione, that are useful chelation agents for metals are prepared by contacting an acrylic acid ester and a 1,2-alkylenediamine.

    摘要翻译： 通过使丙烯酸酯和1,2-亚烷基二胺接触来制备用作金属螯合剂的环状肽，例如1,4,8,11-四氮杂环十四烷-5,12-二酮。