Method of making polymerizable liquid mixtures
    4.
    发明授权
    Method of making polymerizable liquid mixtures 失效
    制造可聚合液体混合物的方法

    公开(公告)号:US4239876A

    公开(公告)日:1980-12-16

    申请号:US86953

    申请日:1979-10-22

    CPC分类号: C07B37/00 C07C233/34

    摘要: What is disclosed is a method for the quaternization of tertiary aminoalkyl esters or tertiary aminoalkyl amides of acrylic acid or of methacrylic acid in admixture with from 30 to 80 percent, by weight of the mixture, of acrylamide employing an alkylating agent in the absence of water to form, in high yield and in short reaction time, a mixture containing the corresponding quaternization products in the form of a fluid mixture which can be used directly for the preparation of copolymers of acrylamide.

    摘要翻译: 公开的方法是将丙烯酸或甲基丙烯酸的叔氨基烷基酯或叔氨基烷基酰胺季铵化的方法与30-80%(重量)的混合物中使用烷基化剂的丙烯酰胺在不存在水的情况下 以高产率和短的反应时间形成含有可以直接用于制备丙烯酰胺共聚物的流体混合物形式的相应季铵化产物的混合物。

    Method of preparing esters of acrylic acid and methacrylic acid by
transesterification
    5.
    发明授权
    Method of preparing esters of acrylic acid and methacrylic acid by transesterification 失效
    通过酯交换制备丙烯酸和甲基丙烯酸的酯的方法

    公开(公告)号:US4745213A

    公开(公告)日:1988-05-17

    申请号:US745486

    申请日:1985-06-17

    CPC分类号: C07C69/54 C07C67/03

    摘要: A method of preparing an ester of (meth)acrylic acid by transesterification with an alcohol, comprising, reacting a (meth)acrylic acid ester formed from an alcohol of 1 to 4 carbon atoms with a transesterifying alcohol, which is not a polybasic alcohol and which is different from the alcohol portion of said (meth)acrylic acid ester, in the presence of a catalyst system comprised of compounds A+B, wherein compound A is Li.sub.n Y, wherein Y is a halide, chlorate, carbonate, carboxylate of 1 to 6 carbon atoms, an alkoxide of 1 to 4 carbon atoms, hydroxide or oxide, and n is 1 or 2, depending on the valence of Y; and compound B is CaX.sub.q, wherein X is oxide or chloride and q is 1 or 2, depending on the valence of X, with the provision that at least one of the two anionic components Y and X is oxygen-containing.

    摘要翻译: 一种通过醇的酯交换制备(甲基)丙烯酸酯的方法,其包括使由1至4个碳原子的醇形成的(甲基)丙烯酸酯与不是多元醇的酯交换反应醇反应,和 其与所述(甲基)丙烯酸酯的醇部分在由化合物A + B组成的催化剂体系存在下,其中化合物A为LinY,其中Y为卤化物,氯酸盐,碳酸盐,羧酸盐,其为1至 6个碳原子,1至4个碳原子的醇盐,氢氧化物或氧化物,n为1或2,这取决于Y的化合价; 并且化合物B是CaXq,其中X是氧化物或氯化物,q是1或2,这取决于X的化合价,条件是两个阴离子组分Y和X中的至少一个是含氧的。

    Method for preparing esters of acrylic acid and methacrylic acid by
transesterification
    6.
    发明授权
    Method for preparing esters of acrylic acid and methacrylic acid by transesterification 失效
    通过酯交换法制备丙烯酸和甲基丙烯酸的酯的方法

    公开(公告)号:US4672105A

    公开(公告)日:1987-06-09

    申请号:US745485

    申请日:1985-06-17

    CPC分类号: C07C67/03

    摘要: A method for preparing an ester of (meth)acrylic acid with a polyhydric alcohol comprising, transesterifying a (meth)acrylic acid ester derived from an alcohol of 1-4 carbon atoms with a transesterifying polyhydric alcohol in the presence of at least one metal compound catalyst system, said catalyst system being comprised of compounds A or a combination of compounds A+B, wherein A represents at least one compound of the formula: Li.sub.n Y, wherein Y is halide, chlorate, carbonate, carboxylate of 1 to 6 carbon atoms, an alkoxide of 1 to 4 carbon atom, hydroxide or oxide and n is 1 or 2, and wherein B is the compound: CaX.sub.q, wherein X is oxide or chloride, and q is 1 or 2; with the provision that at least one of the two anionic components Y and X is oxygen-containing.

    摘要翻译: 一种制备(甲基)丙烯酸与多元醇的酯的方法,该方法包括在至少一种金属化合物的存在下,酯交换衍生自1-4个碳原子的醇的(甲基)丙烯酸酯与酯交换多元醇 催化剂体系,所述催化剂体系由化合物A或化合物A + B的组合组成,其中A表示至少一种下式的化合物:LinY,其中Y为1至6个碳原子的卤化物,氯酸盐,碳酸盐,羧酸盐, 1〜4个碳原子的烷氧基,氢氧化物或氧化物,n为1或2,其中B为化合物:CaXq,其中X为氧化物或氯化物,q为1或2; 其中两个阴离子组分Y和X中的至少一个是含氧的。

    Acrylic resins of low hygroscopicity
    9.
    发明授权
    Acrylic resins of low hygroscopicity 失效
    具有低吸湿性的丙烯酸树脂

    公开(公告)号:US4709000A

    公开(公告)日:1987-11-24

    申请号:US894714

    申请日:1986-08-08

    CPC分类号: G11B7/26 C08F220/14

    摘要: Copolymers exhibiting low water absorption and having good optical and mechanical properties, suitable for use in making data storage disks containing optically readable information, said copolymer being at least ternary and comprising(A) methyl methacrylate, and further comonomers selected from at least two of the groups(B) ##STR1## where R' is hydrogen or methyl and R" is hydrogen or alkyl, and (C) ##STR2## where R'" is aliphatic or alicyclic hydrocarbon, and (D) styrene and/or alpha-methyl styrene.

    摘要翻译: 表现出低吸水性并且具有良好的光学和机械性能的共聚物,适用于制备含有光学可读信息的数据存储盘,所述共聚物至少是三元共聚物,并且包含(A)甲基丙烯酸甲酯,以及选自以下的至少两种的共聚单体 (B)其中R'是氢或甲基,R“是氢或烷基,和(C)其中R”是脂族或脂环族烃,和(D)苯乙烯和/或α 甲基苯乙烯。

    Method for making impact resistant molding compositions
    10.
    发明授权
    Method for making impact resistant molding compositions 失效
    制造抗冲击成型组合物的方法

    公开(公告)号:US4521567A

    公开(公告)日:1985-06-04

    申请号:US637863

    申请日:1984-08-06

    CPC分类号: C08F265/04 Y10S525/902

    摘要: A method for making impact resistant molding compositions wherein a hard phase having a glass transition temperature above 25.degree. C. and consisting principally of methyl methacrylate is polymerized at least partially in a first stage, following which the monomers of a rubbery phase whose polymers have a glass transition temperature below 25.degree. C. are added in a second stage and the polymerization is carried to completion, polymerization of the hard phase in the first stage being performed in a presence of an oil soluble free radical initiator and of an organosulfur chain transfer agent having at least two thiol groups in the molecule, and polymerization of the monomers of the rubbery phase in the second stage being carried out with graft crosslinkers in the presence of the previously formed hard phase.

    摘要翻译: 一种制造耐冲击成型组合物的方法,其中玻璃化转变温度高于25℃,主要由甲基丙烯酸甲酯组成的硬相至少部分地在第一阶段聚合,随后其聚合物具有 在第二阶段加入低于25℃的玻璃化转变温度,聚合反应完成,第一阶段的硬相聚合在油溶性自由基引发剂和有机硫链转移剂的存在下进行 在分子中具有至少两个硫醇基团,并且在先前形成的硬相存在下,第二阶段中橡胶相的单体在接枝交联剂下进行聚合。