利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.013 秒)

    Process for increasing molecular weight of vinylpyrrolidone polymer
    1.
    发明授权
    Process for increasing molecular weight of vinylpyrrolidone polymer 失效
    增加乙烯基吡咯烷酮聚合物分子量的方法

    公开(公告)号：US4190718A

    公开(公告)日：1980-02-26

    申请号：US581375

    申请日：1975-05-27

    申请人： Donald H. Lorenz ,  Earl P. Williams ,  Herman S. Schultz

    发明人： Donald H. Lorenz ,  Earl P. Williams ,  Herman S. Schultz

    IPC分类号： C09K3/20 ,  A61K8/72 ,  B01F17/52 ,  C08F2/00 ,  C08F2/18 ,  C08F2/22 ,  C08F26/00 ,  C08F26/10 ,  C09K3/00 ,  C09K8/588 ,  E21B43/22

    CPC分类号： C08F26/10 ,  C09K8/588 ,  Y10S507/903 ,  Y10S507/936 ,  Y10T428/2982

    摘要： The process for increasing the molecular weight of poly-N-vinylpyrrolidone over that normally obtained by suspension polymerization of N-vinylpyrrolidone in a saturated hydrocarbon suspension medium, by adding to the suspension medium a controlled amount of water, specifically an amount between about 1% and 35% by weight based on the total weight of N-vinylpyrrolidone monomer. The significantly higher molecular weight of the resulting polymeric product can be still further increased by additionally incorporating in the suspension medium between about 0.001 mol % and about 1 mol % of a difunctional vinyl cross-linking agent per mol of N-vinylpyrrolidone monomer. The polymeric products of the present invention are preferably water soluble granules having a porous structure; although the present invention also concerns the poly-N-vinylpyrrolidone having a number average molecular weight of between 400,000 and 2,000,000, preferably between 450,000 and 1,500,000 in any physical form.

    摘要翻译： 提高聚N-乙烯基吡咯烷酮的分子量比通常在饱和烃悬浮介质中通过N-乙烯基吡咯烷酮的悬浮聚合获得的分子量的方法，通过向悬浮介质中加入受控量的水，特别是约1％ 和35重量％，基于N-乙烯基吡咯烷酮单体的总重量。 通过在每摩尔N-乙烯基吡咯烷酮单体中另外并入约0.001摩尔％至约1摩尔％双官能乙烯基交联剂的悬浮介质中，所得聚合产物的显着较高分子量可以进一步提高。 本发明的聚合物优选为具有多孔结构的水溶性颗粒; 尽管本发明还涉及任何物理形式的数均分子量在40万到2,000,000之间，优选在45万到150万之间的聚-N-乙烯基吡咯烷酮。

    Thickening agent based on polyether derivatives
    3.
    发明授权
    Thickening agent based on polyether derivatives 失效
    基于聚醚衍生物的增稠剂

    公开(公告)号：US4521326A

    公开(公告)日：1985-06-04

    申请号：US470803

    申请日：1983-02-28

    申请人： Karl Seibert ,  Klaus Neumann ,  Ernst Spiess ,  Hendrik G. Bruil

    发明人： Karl Seibert ,  Klaus Neumann ,  Ernst Spiess ,  Hendrik G. Bruil

    IPC分类号： A61K47/10 ,  B01F17/00 ,  B01F17/42 ,  C08G65/06 ,  C08G65/26 ,  C08G65/28 ,  C08G65/32 ,  C09K3/20 ,  C11D3/37 ,  C11D1/722 ,  C07C43/10

    CPC分类号： C08G65/2609 ,  A61K47/10 ,  C08G65/06 ,  C11D3/3707

    摘要： A thickening agent comprising polyether derivatives of the general formula: ##STR1## wherein R.sub.1 is a substituted or unsubstituted hydrocarbon radical or an alkylphenol radical having 10 or more carbon atoms, n is 10 to 100, m is 0 to 25, and p is 1 to 3, and wherein R.sub.2 is an alkyl radical having 8 to 30 carbon atoms. These polyether derivatives are prepared by the gradual addition of a long-chain 1,2-epoxy having a chain length of 10 to 32 carbon atoms at temperatures from 100.degree. to 200.degree. C., to either (1) a polyethylene glycol monoether having an average molecular weight of 800 to 5000, the monoether group thereof being a substituted or unsubstituted hydrocarbon radical having at least 10 carbon atoms; or to (2) a polyethylene glycol-polypropylene glycol monoether with an average molecular weight of 850 to 6300, and having repeating ethylene oxide and propylene oxide units each forming a polyethylene glycol and polypropylene glycol block, respectively, the polypropylene glycol block having an average molecular weight of no more than 1300, and the monoether group forming the end of the polyethylene glycol block and being a substituted or unsubstituted hydrocarbon radical having at least 10 carbon atoms. This thickening agent is prepared using 0.1 to 1.0% by weight of an alkali hydroxide, referring to the total quantity of the long-chain epoxy and the monoether.

    摘要翻译： 一种增稠剂，其包含以下通式的聚醚衍生物：其中R1是取代或未取代的烃基或具有10个或更多个碳原子的烷基酚基，n为10至100，m为0至25，p为1 至3，并且其中R 2为具有8至30个碳原子的烷基。 这些聚醚衍生物通过在100℃至200℃的温度下逐渐加入链长为10至32个碳原子的长链1,2-环氧树脂制备成（1）聚乙二醇单醚，其具有 平均分子量为800〜5000，其单醚基为具有至少10个碳原子的取代或未取代的烃基; 或（2）平均分子量为850〜6300的聚乙二醇 - 聚丙二醇单醚，分别具有聚乙二醇和聚丙二醇嵌段的重复环氧乙烷和环氧丙烷单元，所述聚丙二醇嵌段的平均分子量 分子量不超过1300，单醚基形成聚乙二醇嵌段的末端，并且是具有至少10个碳原子的取代或未取代的烃基。 参考长链环氧树脂和单醚的总量，使用0.1〜1.0重量％的碱金属氢氧化物制备该增稠剂。

    Aqueous gel compositions
    6.
    发明授权
    Aqueous gel compositions 失效
    水凝胶组合物

    公开(公告)号：US4342665A

    公开(公告)日：1982-08-03

    申请号：US872431

    申请日：1978-01-26

    申请人： Hiroyuki Itoh ,  Hirosuke Imai

    发明人： Hiroyuki Itoh ,  Hirosuke Imai

    IPC分类号： C08L33/00 ,  B01J13/00 ,  C08J3/05 ,  C08L33/02 ,  C09D7/00 ,  C09K3/20 ,  E21B35/00

    CPC分类号： E21B35/00 ,  B01J13/0065 ,  C08J3/05 ,  C09D7/002

    摘要： This invention provides novel aqueous gel compositions comprising as the essential components one or more surface active agents selected from the group consisting of anionic and nonionic surface active agents, a water-soluble salt of a conjugated diene-maleic acid derivative copolymer, calcium ion and water, and as needed, containing a chelating agent.

    摘要翻译： 本发明提供新的水性凝胶组合物，其包含作为主要组分的一种或多种选自阴离子和非离子表面活性剂的表面活性剂，共轭二烯 - 马来酸衍生物共聚物的水溶性盐，钙离子和水 ，并根据需要含有螯合剂。

    Oxidation- and low temperature-resistant glycerides of natural fatty acids
    8.
    发明授权
    Oxidation- and low temperature-resistant glycerides of natural fatty acids 失效
    天然脂肪酸的氧化和耐低温抗坏血酸

    公开(公告)号：US3748265A

    公开(公告)日：1973-07-24

    申请号：US3748265D

    申请日：1971-03-01

    申请人： DYNAMIT NOBEL AG

    发明人： BUENGER H ,  RENCKHOFF G

    IPC分类号： C11B5/00 ,  C09K3/20

    CPC分类号： C11B5/0028

    摘要： GLYCERIDE MIXTURES RESISTANT TO OXIDATION AND LOW TEMPERATURES COMPRISING 10-99% BY WEIGHT OF DIACETYL MONOMONOHEXADECANOLY TRIGLCERIDE, AND/OR UP TO 90% BY MONOHEXADECANOYL TRIGLYCERIDE, AND/OR UP TO 90% BY WEIGHT OF DIACETYL MONOTETRADECANOYL TRIGLCERIDE, AS WELL AS OPTIONALLY UP TO 10% BY WEIGHT OF AN ACETYL DIALKANOYL TRIGLYCERIDE WHEREIN THE ALKANOYL GROUPS THEREOF HAVE 1216 CARBON ATOMS.