Baking finishes of low solvent content
    41.
    发明授权
    Baking finishes of low solvent content 失效
    烘烤完成低溶剂含量

    公开(公告)号:US4190569A

    公开(公告)日:1980-02-26

    申请号:US939969

    申请日:1978-09-06

    摘要: The invention relates to baking finishes of low solvent content, consisting essentially of an acrylate resin, an eposy resin and a mixture of organic solvents, with or without pigment, catalyst and other conventional auxiliaries, in which the acrylate resin is a copolymer which contains from 10 to 35% by weight of .alpha.,.beta.-olefinically unsaturated carboxylic acids as copolymerized units, has a very low K value and has an acid number of from 70 to 250 mg of KOH/g, the epoxy resin contains at least 2 oxirane groups per molecule and the mixture of organic solvents is a mixture of from 20 to 80% by weight of a solvent having a boiling point of from 100.degree. to 280.degree. C. and a dielectric constant of from 2 to 4.99, and from 80 to 20% by weight of a solvent having a boiling point of from 80.degree. to 200.degree. C. and a dielectric constant of from 5 to 27. The weight ratio of acrylate resin to epoxy resin is from 9:1 to 6:4.The acrylate resin has a mean molecular weight Mn of from 1500 to 3000 and an inhomogeneity (Mw/Mn), measured by gel permeation chromatography, of from 1.5 to 2.0.These baking finishes of low solvent content may be used, e.g., as finishes for domestic equipment and as automotive primers.

    摘要翻译: 本发明涉及低溶剂含量的烘烤面漆,其基本上由丙烯酸酯树脂,电泳树脂和有机溶剂的混合物组成,具有或不具有颜料,催化剂和其它常规助剂,其中丙烯酸酯树脂是含有 10〜35重量%的作为共聚单元的α,β-烯属不饱和羧酸具有非常低的K值,酸值为70-250mg KOH / g,环氧树脂含有至少2个环氧乙烷基 并且有机溶剂的混合物是20至80重量%的沸点为100至280℃和介电常数为2至4.99和80至20的溶剂的混合物 重量%的沸点为80〜200℃,介电常数为5〜27的溶剂。丙烯酸酯树脂与环氧树脂的重量比为9:1〜6:4。 丙烯酸酯树脂的平均分子量Mn为1500〜3000,通过凝胶渗透色谱法测定的不均匀性(Mw / Mn)为1.5〜2.0。 这些低溶剂含量的烘烤面漆可以用作家用设备和汽车底漆的表面处理剂。

    Process for preparing rubber-modified moulding compounds
    49.
    发明授权
    Process for preparing rubber-modified moulding compounds 失效
    制备橡胶改性模塑料的方法

    公开(公告)号:US06211297B1

    公开(公告)日:2001-04-03

    申请号:US09319596

    申请日:1999-06-08

    IPC分类号: C08L2300

    CPC分类号: C08F20/12

    摘要: Preparation of rubber-modified molding compositions comprises a1) anionic polymerization of a mixture (A) comprising acrylate derivatives or methacrylate derivatives or acrylate derivatives and methacrylate derivatives and a solvent, if desired comprising olefinically unsaturated compounds which are not an acrylate derivative or a methacrylate derivative, or a2) sequential anionic polymerization of acrylate derivatives or methacrylate derivatives or acrylate derivatives and methacrylate derivatives in the presence of a solvent which, if desired, comprises olefinically unsaturated compounds to give block copolymers, and b) subjecting the reaction mixture obtained in a1) or a2) or a1) and a2) to a free-radical-initiated polymerization, if desired after the addition of unsaturated compounds.

    摘要翻译: 橡胶改性成型组合物的制备包括a)如果需要,包含丙烯酸酯衍生物或甲基丙烯酸酯衍生物或丙烯酸酯衍生物和甲基丙烯酸酯衍生物的混合物(A)的阴离子聚合和包含不是丙烯酸酯衍生物或甲基丙烯酸酯衍生物的烯属不饱和化合物的溶剂, ora2)在溶剂存在下丙烯酸酯衍生物或甲基丙烯酸酯衍生物或丙烯酸酯衍生物和甲基丙烯酸酯衍生物的顺序阴离子聚合,如果需要,其包含烯属不饱和化合物以产生嵌段共聚物,和b)使得在a1)或a2)中获得的反应混合物, 或a1)和a2)进行自由基引发的聚合,如果需要,在加入不饱和化合物之后。

    Thermoplastic elastomer
    50.
    发明授权
    Thermoplastic elastomer 失效
    热塑性弹性体

    公开(公告)号:US6031053A

    公开(公告)日:2000-02-29

    申请号:US750705

    申请日:1996-12-17

    IPC分类号: C08F297/04 C08J5/18

    摘要: An elastomeric block copolymer comprising at least one block A having polymerized units of a vinylaromatic monomer and forming a rigid phase and at least one elastomeric block B/A having polymerized units of both vinylaromatic monomers and of a diene and forming a flexible phase, and glass transition temperature Tg of the block A being above 25.degree. C. and that of the block B/A being below 25.degree. C. and the phase volume ratio of block A to block B/A being chosen so that the amount of the rigid phase in the total block copolymer is 1 to 40% by volume and the amount of the diene is less than 50% by weight.

    摘要翻译: PCT No.PCT / EP95 / 02207 Sec。 371日期1996年12月17日第 102(e)日期1996年12月17日PCT提交1995年6月8日PCT公布。 第WO95 / 35335号公报 日期1995年12月28日一种弹性体嵌段共聚物,其包含至少一个具有乙烯基芳族单体的聚合单元并形成刚性相的嵌段A和至少一个具有乙烯基芳族单体和二烯的聚合单元的弹性嵌段B / A, 块A的柔性相和玻璃化转变温度Tg高于25℃,块B / A的玻璃化转变温度Tg低于25℃,并且选择块A与嵌段B / A的相体积比,使得 总嵌段共聚物中的刚性相的量为1〜40体积%,二烯的量小于50重量%。