利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.015 秒)

    Process for making poly(2-methyl-1,3-propanediol)
    21.
    发明授权
    Process for making poly(2-methyl-1,3-propanediol) 失效
    制备聚（2-甲基-1,3-丙二醇）的方法

    公开(公告)号：US5659089A

    公开(公告)日：1997-08-19

    申请号：US651362

    申请日：1996-05-22

    申请人： Gangfeng Cai ,  Robert G. Gastinger ,  Carl J. Sullivan

    发明人： Gangfeng Cai ,  Robert G. Gastinger ,  Carl J. Sullivan

    IPC分类号： C07C41/09 ,  C07C41/01

    CPC分类号： C07C41/09

    摘要： A process for making poly(2-methyl-1,3-propanediol) is disclosed. The process comprises heating 2-methyl-1,3-propanediol in the presence of an etherification catalyst at a temperature within the range of about 100.degree. C. to about 210.degree. C. The resulting poly(2-methyl-1,3-propanediol) has a degree of polymerization within the range of about 2 to about 20, and a number average molecular weight within the range of about 150 to about 2000. The process enables the synthesis of dimers and trimers of 2-methyl-1,3-propanediol, which are useful as reactive diluents or chain extenders for polyurethanes and as diol components for unsaturated polyester resins and thermoplastic polyesters.

    摘要翻译： 公开了制备聚（2-甲基-1,3-丙二醇）的方法。 该方法包括在醚化催化剂存在下，在约100℃至约210℃的温度范围内加热2-甲基-1,3-丙二醇。所得的聚（2-甲基-1,3-丙二醇） 丙二醇）的聚合度在约2至约20的范围内，数均分子量在约150至约2000的范围内。该方法能够合成2-甲基-1,3-二异氰酸酯的二聚体和三聚体 丙二醇，其可用作聚氨酯的反应性稀释剂或扩链剂，并且用作不饱和聚酯树脂和热塑性聚酯的二醇组分。

    Process for making allyl polymers and copolymers
    22.
    发明授权
    Process for making allyl polymers and copolymers 失效
    制备烯丙基聚合物和共聚物的方法

    公开(公告)号：US5420216A

    公开(公告)日：1995-05-30

    申请号：US254808

    申请日：1994-06-06

    申请人： Shao-Hua Guo ,  Robert G. Gastinger

    发明人： Shao-Hua Guo ,  Robert G. Gastinger

    IPC分类号： C08F2/02 ,  C08F16/08 ,  C08F16/20 ,  C08F18/12 ,  C08F4/04 ,  C08F4/34

    CPC分类号： C08F18/12 ,  C08F16/08 ,  C08F16/20

    摘要： An improved process for making allyl polymers and copolymers is disclosed. Conversions of the allyl monomers are substantially increased by adding the free-radical initiator gradually during the polymerization. The process is particularly useful for making polymers and copolymers from common allyl monomers such as allyl alcohol, allyl acetate, and propoxylated allyl alcohol.

    摘要翻译： 公开了制备烯丙基聚合物和共聚物的改进方法。 烯丙基单体的转化通过在聚合过程中逐渐加入自由基引发剂而显着提高。 该方法特别可用于由普通的烯丙基单体如烯丙醇，乙酸烯丙酯和丙氧基化的烯丙醇制备聚合物和共聚物。

    Polyacrylate graft-polyol dispersants
    23.
    发明授权
    Polyacrylate graft-polyol dispersants 失效
    聚丙烯酸聚酰胺分散剂

    公开(公告)号：US5070141A

    公开(公告)日：1991-12-03

    申请号：US226329

    申请日：1988-07-29

    申请人： Robert G. Gastinger ,  John E. Hayes

    发明人： Robert G. Gastinger ,  John E. Hayes

    IPC分类号： C08F283/06 ,  C08G18/63

    CPC分类号： C08G18/636 ,  C08G18/638

    摘要： Polyacrylate graft-polyols are found to be homogeneous liquids useful as dispersants in vinyl polymer polyols. The novel polyacrylate graft-polyols are made by polymerizing at least one acrylate monomer in a polyol where the resultant polyacrylate is soluble in the polyol used. The polyol may be a polyoxyalkylene polyether polyol. No copolymer or unsaturated polyol is required to make vinyl polymer polyols having high styrene/acrylonitrile ratios, good stability and improved viscosity properties when these polyacrylate graft-polyol dispersants are employed. The vinyl polymer polyols are in turn useful in reactions with polyisocyanates in the presence of suitable catalysts to make polyurethane products.

    Heterogeneous epoxidation catalyst
    26.
    发明授权
    Heterogeneous epoxidation catalyst 有权
    异构环氧化催化剂

    公开(公告)号：US6114552A

    公开(公告)日：2000-09-05

    申请号：US407489

    申请日：1999-09-28

    申请人： Yuan-Zhang Han ,  Edrick Morales ,  Robert G. Gastinger ,  Kevin M. Carroll

    发明人： Yuan-Zhang Han ,  Edrick Morales ,  Robert G. Gastinger ,  Kevin M. Carroll

    IPC分类号： B01J21/06 ,  B01J31/38 ,  B01J37/02 ,  C07B61/00 ,  C07D301/19 ,  C07D303/04

    CPC分类号： C07D301/19 ,  B01J21/063 ,  B01J37/0209 ,  B01J37/0238

    摘要： Highly active and selective epoxidation catalysts are prepared by combining high surface area silica support or the like, having surface area greater than 1100 m.sup.2 /g, with a titanium source. The titanium source is a non-oxygenated hydrocarbon solution of a titanium halide or a vapor stream of titanium tetrachloride. The impregnated support it then calcined at an elevated temperature (preferably, in a substantially oxygen-free atmosphere), and, optionally, reacted with water and/or silylated. The resulting materials are highly active heterogeneous epoxidation catalysts for the reaction of olefins to with organic hydroperoxides.

    摘要翻译： 通过将具有大于1100m 2 / g的表面积的高表面积二氧化硅载体等与钛源一起制备高活性和选择性的环氧化催化剂。 钛源是卤化钛或四氯化钛的蒸气流的非氧化烃溶液。 浸渍的载体然后在升高的温度（优选在基本上无氧的气氛中）煅烧，并且任选地与水和/或甲硅烷基化反应。 所得材料是用于烯烃与有机氢过氧化物反应的高活性异相环氧化催化剂。

    Polyol polyacrylate dispersants
    30.
    发明授权
    Polyol polyacrylate dispersants 失效
    多元醇聚丙烯酸酯分散剂

    公开(公告)号：US5225481A

    公开(公告)日：1993-07-06

    申请号：US664011

    申请日：1991-03-04

    申请人： Robert G. Gastinger ,  John E. Hayes

    发明人： Robert G. Gastinger ,  John E. Hayes

    IPC分类号： C08G18/63

    CPC分类号： C08G18/636 ,  C08G18/638

    摘要： A stable, low viscosity polymer polyol composition comprising a continuous phase, a disperse phase within the continuous phase, and a dispersant for enhancing the stability of the resultant polymer polyol is disclosed. In one embodiment, the dispersant is formed by polymerizing at least one acrylate monomer in a polyether polyol to form a single phase homogeneous liquid intermediate reaction product which is transesterified to form a polyol polyacrylate dispersant.

    摘要翻译： 公开了一种稳定的低粘度聚合物多元醇组合物，其包含连续相，连续相内的分散相和用于提高所得聚合物多元醇的稳定性的分散剂。 在一个实施方案中，通过在聚醚多元醇中聚合至少一种丙烯酸酯单体以形成单相均匀液体中间体反应产物形成分散剂，所述单相均匀液体中间体反应产物被酯交换以形成多元醇聚丙烯酸酯分散剂。