Process of producing hydroxyalkanal
    1.
    发明授权
    Process of producing hydroxyalkanal 失效
    生产羟基卡那酸的方法

    公开(公告)号:US5811591A

    公开(公告)日:1998-09-22

    申请号:US561179

    申请日:1995-11-20

    摘要: An unsaturated aldehyde expressed by Formula (I) below is hydrated with a solution in the presence of a carboxylic-acid-based resin having of a structure expressed by Formula (II) below: ##STR1## where R represents one of a hydrogen atom and a hydrocarbon group having up to five carbons; ##STR2## where R.sub.1 and R.sub.2 respectively represent a hydrogen atom, hydrocarbon group having up to five carbons, or --(--CH.sub.2 --).sub.p1 --X group, p.sub.1, k.sub.1, and m.sub.1 respectively represent an integer from zero to six, n.sub.1 represents an integer from one to six, Y.sub.1 represents --O--, --S--, or --NR.sub.3 --, R.sub.3 represents a hydrogen atom or hydrocarbon group having up to five carbons, and X represents a carboxylic-acid-based resin main body. Using a heat-resistant catalyst as above makest it possible to increase the reaction rate by heating, and produce hydroxyalkanal at high selectivity and yield out of an industrially advantageous high-concentration unsaturated aldehyde solution.

    摘要翻译: 在下述通式(I)表示的结构的羧酸类树脂存在下,用下述通式(I)表示的不饱和醛进行水合:其中,R表示下式 氢原子和具有多至五个碳的烃基; (II)其中R1和R2分别表示氢原子,具有至多5个碳的烃基或 - ( - CH2-)p1-X基,p1,k1和m1分别表示0至6的整数 ,n1表示1〜6的整数,Y1表示-O - , - S-或-NR3-,R3表示氢原子或至多5个碳的烃基,X表示羧酸系树脂主体 身体。 如上所述使用耐热催化剂,可以通过加热提高反应速度,并以高选择性产生羟基卡那定,并从工业上有利的高浓度不饱和醛溶液中产生。

    Process of producing hydroxyalkanal
    2.
    发明授权
    Process of producing hydroxyalkanal 失效
    生产羟基卡那酸的方法

    公开(公告)号:US5698748A

    公开(公告)日:1997-12-16

    申请号:US560716

    申请日:1995-11-20

    CPC分类号: C07C45/64

    摘要: A process of producing hydroxyalkanal comprises a step of hydrating a raw material, namely, an unsaturated aldehyde, in an aqueous solution in the presence of a lead-carrying heterogeneous acid catalyst promoting the hydration reaction. According to the above method, the lead-carrying heterogeneous acid catalyst curbs the consecutive reaction of the reaction product, namely, hydroxyalkanal. Thus, hydroxyalkanal can be produced with high selectivity at high yield out of a high-concentration unsaturated aldehyde solution. Moreover, the catalyst can be used repetitively for a considerable period of continuous use in a stable manner, thereby further improving the yield of hydroxyalkanal.

    摘要翻译: 生产羟基卡那氏菌的方法包括在促进水合反应的含铅多相酸催化剂存在下,在水溶液中水合原料即不饱和醛的步骤。 根据上述方法,铅载体异质酸催化剂阻止了反应产物,即羟基链烷醛的连续反应。 因此,高浓度不饱和醛溶液可以高收率地以高选择性制备羟基卡那定。 此外,催化剂可以以稳定的方式重复使用相当长的连续使用时间,从而进一步提高羟基卡那定的产率。

    Process of producing hydroxyalkanal
    3.
    发明授权
    Process of producing hydroxyalkanal 失效
    生产羟基卡那酸的方法

    公开(公告)号:US5639920A

    公开(公告)日:1997-06-17

    申请号:US560715

    申请日:1995-11-20

    CPC分类号: C07C45/64

    摘要: In a process of producing hydroxyalkanal, a raw material, namely, an unsaturated aldehyde, is hydrated with a solution in the presence of a catalyst, and alcohol is added to the solution. A adding amount of the alcohol with respect to the unsaturated aldehyde is preferably in a range between 0.001 percent by weight and 10 percent by weight. According to this process, a consecutive reaction (side reaction) of a reaction product, namely, hydroxyalkanal, is curbed by the alcohol added to the solution, thereby making it possible to produce hydroxyalkanal at high selectivity out of a high-density unsaturated aldehyde solution. Therefore, the above process can trigger a reaction of an industrially advantageous unsaturated aldehyde solution, and thus improves the yield of hydroxyalkanal.

    摘要翻译: 在制备羟基卡那酸的过程中,原料即不饱和醛在催化剂存在下与溶液水合,向该溶液中加入醇。 醇相对于不饱和醛的添加量优选为0.001重量%以上10重量%以下。 根据该方法,通过加入到溶液中的醇来抑制反应产物(即羟基链烷醛)的连续反应(副反应),从而可以从高密度不饱和醛溶液中以高选择性制备羟基卡那定 。 因此,上述方法可以引发工业上有利的不饱和醛溶液的反应,从而提高羟基卡那定的产率。

    Organic-inorganic composite particles and production process therefor
    4.
    发明授权
    Organic-inorganic composite particles and production process therefor 失效
    有机 - 无机复合颗粒及其制备方法

    公开(公告)号:US5503932A

    公开(公告)日:1996-04-02

    申请号:US340860

    申请日:1994-11-15

    摘要: Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or, with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.

    摘要翻译: 包括(甲基)丙烯酸树脂骨架和聚硅氧烷骨架的有机 - 无机复合颗粒,其分子中含有硅原子的有机硅与(甲基)丙烯酸树脂骨架的至少一个碳原子直接化学结合,并且还含有 25重量%以上的构成聚硅氧烷骨架的SiO 2,其平均粒径为≥0.5μm。 颗粒具有必要的机械弹性,以保持一对构件之间的间隙距离与它们之间的正确的间隙距离保持恒定的间隙距离,以及保持间隙恒定的较小数量所需的硬度和断裂强度; 也不会对成员造成身体伤害。 复合颗粒可以用作液晶显示器的间隔物8,或者在表面上形成粘合剂层。 复合颗粒也可以具有在表面上形成的导电层,并且用作导电颗粒。

    Compound fine particles and composition for forming film
    9.
    发明授权
    Compound fine particles and composition for forming film 失效
    复合微粒和成膜用组合物

    公开(公告)号:US5683501A

    公开(公告)日:1997-11-04

    申请号:US334052

    申请日:1994-11-04

    摘要: Compound fine particles include inorganic fine particles and an organic polymer bound to surfaces of the inorganic fine particles, and have an average particle diameter of 5 to 200 nm and a particle diameter variation coefficient of 50% or less. The compound fine particles are obtainable by hydrolyzing and condensing an organic polymer, wherein the organic polymer has, per molecule, at least one polysiloxane group containing at least one Si--OR.sup.1 group, wherein R.sup.1 denotes a hydrogen atom, an unsubstituted or substituted alkyl group, or an unsubstituted or substituted acyl group. A compound fine particle dispersion includes the compound fine particles and a dispersion medium. A composition for forming a film includes this dispersion.

    摘要翻译: 复合微粒包括与无机细颗粒的表面结合的无机细颗粒和有机聚合物,其平均粒径为5〜200nm,粒径变化系数为50%以下。 复合微粒可以通过水解和缩合有机聚合物获得,其中有机聚合物每分子具有至少一个含有至少一个Si-OR 1基团的聚硅氧烷基团,其中R1表示氢原子,未取代或取代的烷基 ,或未取代或取代的酰基。 复合微粒分散体包括复合微粒和分散介质。 用于形成膜的组合物包括该分散体。

    Organic-inorganic composite particles and production process therefor
    10.
    发明授权
    Organic-inorganic composite particles and production process therefor 失效
    有机 - 无机复合颗粒及其制备方法

    公开(公告)号:US5670257A

    公开(公告)日:1997-09-23

    申请号:US568466

    申请日:1995-12-07

    IPC分类号: C08F30/08 G02F1/1339 B32B5/15

    摘要: Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.

    摘要翻译: 包括(甲基)丙烯酸树脂骨架和聚硅氧烷骨架的有机 - 无机复合颗粒,其分子中含有硅原子的有机硅与(甲基)丙烯酸树脂骨架的至少一个碳原子直接化学结合,并且还含有 25重量%以上的构成聚硅氧烷骨架的SiO 2,其平均粒径为≥0.5μm。 颗粒具有必要的机械弹性,以保持一对构件之间的间隙距离与它们之间的正确的间隙距离保持恒定的间隙距离,以及保持间隙恒定的较小数量所需的硬度和断裂强度; 也不会对成员造成身体伤害。 复合颗粒可以用作液晶显示器的间隔件8,或者在表面上形成粘合剂层。 复合颗粒也可以具有在表面上形成的导电层,并且用作导电颗粒。