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13 条记录 (耗时 0.014 秒)

    Ion exchange polymers on improved porous substrates
    2.
    发明授权
    Ion exchange polymers on improved porous substrates 失效
    改进的多孔基材上的离子交换聚合物

    公开(公告)号：US4332916A

    公开(公告)日：1982-06-01

    申请号：US299371

    申请日：1972-09-21

    申请人： Bruce P. Thill

    发明人： Bruce P. Thill

    IPC分类号： B01J39/22 ,  B01J47/00 ,  C08B15/10 ,  C08B16/00

    CPC分类号： B01J47/007 ,  B01J39/22 ,  C22B3/42 ,  Y02P10/234

    摘要： Increased ion exchange capacity per unit weight of substrate is achieved upon using as the substrate regenerated cellulose sponge instead of cotton fabric. A water soluble crosslinkable polymeric material having ion ion exchange sites, such as polyvinyl phosphate or polyethylenimine, and a suitable crosslinking agent are dissolved in water. The sponge is wetted with the solution and dried and cured at about 100 degrees to 145 degrees C. to crosslink the polymer to the substrate. The so-prepared ion exchange composition is immersed in a flowing stream of dilute aqueous solution of heavy metal ions or otherwise contacted with such solution to effect separation and concentration of such cations.

    摘要翻译： 在使用基材再生纤维素海绵而不是棉织物时，获得每单位重量基底的离子交换容量的增加。 将具有离子交换位点的水溶性可交联聚合材料如聚磷酸乙烯酯或聚乙烯亚胺和适宜的交联剂溶于水中。 将海绵用溶液润湿并在约100-145℃下干燥和固化，以使聚合物与基底交联。 将如此制备的离子交换组合物浸入稀释的重金属离子水溶液的流动流中或者与该溶液接触以实现这些阳离子的分离和浓缩。

    Thermosetting powder coating composition comprising vinyl interpolymer and polycarboxylic acid
    8.
    发明授权
    Thermosetting powder coating composition comprising vinyl interpolymer and polycarboxylic acid 失效
    包含乙烯基互聚物和多元羧酸的热固性粉末涂料组合物

    公开(公告)号：US4245063A

    公开(公告)日：1981-01-13

    申请号：US951544

    申请日：1978-10-16

    申请人： Bruce P. Thill ,  Donald A. Tomalia

    发明人： Bruce P. Thill ,  Donald A. Tomalia

    IPC分类号： C08F26/00 ,  C08L33/00 ,  C08L33/02 ,  C08L39/00 ,  C09D5/03 ,  C09D5/46 ,  C09D139/04 ,  C09D157/04

    CPC分类号： C09D139/04 ,  C08K5/0016 ,  C09D157/04 ,  Y10S524/904

    摘要： A thermosetting powder coating composition is disclosed herein. The composition comprises a solid pulverulent mixture of (A) a substantially linear vinyl addition interpolymer having a plurality of pendant 2-oxazoline and/or 2-oxazine groups, a number average molecular weight of from about 5,000 to about 25,000, and a melting point of from about 60.degree. C. to 90.degree. C., and (B) a solid polycarboxylic acid melting in the range of 70.degree. C. to 175.degree. C. which is included in an amount of from 0.75 to 1.25 carboxy equivalents per pendant oxazoline or oxazine group on the interpolymer. The utility of the above composition as a powder coating is further enhanced by inclusion of a plasticizer (e.g., a long chain monocarboxylic acid) and in practice, the powder compositions also normally include pigments and minor amounts of flow control agents. The instant powder coatings are applied by conventional techniques and cured at temperatures normally in the range of from about 150.degree. C. to about 200.degree. C.

    摘要翻译： 本文公开了一种热固性粉末涂料组合物。 组合物包含（A）具有多个2-恶唑啉和/或2-恶嗪侧基的基本线性乙烯基加成互聚物的固体粉末混合物，数均分子量为约5,000至约25,000，熔点 约为60℃至90℃，和（B）熔点在70℃至175℃范围内的固体多元羧酸，其含量为每个吊坠0.75至1.25个羧基当量 恶唑啉或恶嗪基团。 上述组合物作为粉末涂料的用途通过包含增塑剂（例如长链一元羧酸）进一步增强，实际上粉末组合物还通常包括颜料和少量的流动控制剂。 本发明的粉末涂料通过常规技术施加，并且通常在约150℃至约200℃的温度下固化。

    Unsaturated acrylic acid-oxazoline reaction products
    9.
    发明授权
    Unsaturated acrylic acid-oxazoline reaction products 失效
    不饱和丙烯酸 - 恶唑啉反应产物

    公开(公告)号：US4016192A

    公开(公告)日：1977-04-05

    申请号：US537215

    申请日：1974-12-30

    申请人： Donald A. Tomalia ,  Bruce P. Thill ,  Thomas W. Regulski

    发明人： Donald A. Tomalia ,  Bruce P. Thill ,  Thomas W. Regulski

    IPC分类号： C08J5/12 ,  C07C101/00

    CPC分类号： C08J5/124 ,  C08J2367/02

    摘要： Ethylenically-unsaturated products are obtained by (a) reacting acrylic acid and 2-oxazoline or a 2-alkyl or aryl-2-oxazoline in an inert liquid reaction medium and (b) recovering the desired product from (a) by heating the reaction mixture under reduced pressure to strip away the liquid diluent and volatile components, thus leaving the desired product as a non-volatile residue. The reaction products can be cross-linked by conventional techniques (e.g. freeradical initiation) to form useful coatings and adhesives. For example, the product produced by heating equal molar amounts of acrylic acid and 2-ethyl-2-oxazoline in benzene gave an ethylenically-unsaturated oligomeric product having a number average molecular weight of 253 and a weight average molecular weight of 460 in approximately 95 percent yield.

    摘要翻译： 通过（a）在惰性液体反应介质中使丙烯酸和2-恶唑啉或2-烷基或芳基-2-恶唑啉反应，和（b）通过加热反应从（a）回收所需产物，从而获得乙烯不饱和产物 混合物在减压下剥离液体稀释剂和挥发性组分，从而留下所需产物作为非挥发性残余物。 反应产物可以通过常规技术（例如自由引发）交联以形成有用的涂料和粘合剂。 例如，通过在苯中加热等摩尔量的丙烯酸和2-乙基-2-恶唑啉而产生的产物得到数均分子量为253，重均分子量为460的烯键式不饱和低聚产物，大约为95 产量百分比。

    Process for making 2-vinyl-2-oxazolines
    10.
    发明授权
    Process for making 2-vinyl-2-oxazolines 失效
    制备2-乙烯基-2-恶唑啉的方法

    公开(公告)号：US4016171A

    公开(公告)日：1977-04-05

    申请号：US288914

    申请日：1972-09-14

    申请人： Bruce P. Thill ,  Janet N. Paige

    发明人： Bruce P. Thill ,  Janet N. Paige

    IPC分类号： C07D263/12

    CPC分类号： C07D263/12

    摘要： 2-Vinyl-2-oxazolines are prepared in the novel process comprising reacting (1) an N-(2-haloalkyl)-3-halopropionamide with (2) at least 2 equivalents of an inorganic base per mole of (1). The process is conducted under substantially anhydrous conditions and in the presence of an alkylene glycol or a polyalkylene glycol.

    摘要翻译： 在新方法中制备2-乙烯基-2-恶唑啉，其包括使（1）N-（2-卤代烷基）-3-卤代丙酰胺与（2）每摩尔（1）至少2当量无机碱反应。 该方法在基本上无水的条件下和在亚烷基二醇或聚亚烷基二醇的存在下进行。