Substantially flat surfaced vinyl polymer emulsion particles having a
concavity and process for preparing them
    5.
    发明授权
    Substantially flat surfaced vinyl polymer emulsion particles having a concavity and process for preparing them 失效
    具有凹面的基本平坦的表面的乙烯基聚合物乳液颗粒和用于制备它们的方法

    公开(公告)号:US4948772A

    公开(公告)日:1990-08-14

    申请号:US373427

    申请日:1989-06-30

    摘要: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0, prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tention to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.

    摘要翻译: 基本上平坦的表面乳状颗粒聚合的乙烯基单体在至少一个平坦表面具有凹度,直径D为0.1-5.0μm,粒径厚度d比(d / D)为1.2-5.0,制备 通过(1)水乳液聚合第一乙烯基单体或单体(a)的混合物以形成乙烯基聚合物种子颗粒的步骤; 和(2)在乙烯基聚合物种子颗粒和表面具有表达水的20℃下的48达因/厘米的非水有机溶剂的存在下,使第二乙烯基单体或单体(b)的混合物聚合的水性乳液 以上,单体(a)与单体(b)的重量比为0.5 / 99.5〜50/50; 并且可用于高性能记录材料,涂料组合物和纸涂料组合物中。

    Substantially flat surfaced vinyl polymer emulsion particles having a
concavity and process for preparing them
    6.
    发明授权
    Substantially flat surfaced vinyl polymer emulsion particles having a concavity and process for preparing them 失效
    具有凹面的基本平坦的表面的乙烯基聚合物乳液颗粒和用于制备它们的方法

    公开(公告)号:US5401800A

    公开(公告)日:1995-03-28

    申请号:US26242

    申请日:1993-03-01

    摘要: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0 prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tention to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.

    摘要翻译: 基本上平坦的表面乳状颗粒聚合的乙烯基单体在至少一个平坦表面具有凹陷,直径D为0.1-5.0μm,粒径d(D / D)为1.2-5.0,由 (1)水乳液聚合第一乙烯基单体或单体混合物(a)以形成乙烯基聚合物种子颗粒的步骤; 和(2)在乙烯基聚合物种子颗粒和表面具有表达水的20℃下的48达因/厘米的非水有机溶剂的存在下,使第二乙烯基单体或单体(b)的混合物聚合的水性乳液 以上,单体(a)与单体(b)的重量比为0.5 / 99.5〜50/50; 并且可用于高性能记录材料,涂料组合物和纸涂料组合物中。

    Multi-shell emulsion particle
    10.
    发明授权
    Multi-shell emulsion particle 失效
    多壳乳液颗粒

    公开(公告)号:US5500286A

    公开(公告)日:1996-03-19

    申请号:US341110

    申请日:1994-11-18

    摘要: A multi-shell emulsion particle of dry state structure having one or more of penetrating pore(s) connecting the surface layer of the particle with the interior of the particle and having a particle diameter of from 0.1 to 5.0.mu. preferably from 0.1 to 1.2.mu.. The particles can be prepared by carrying out emulsion polymerization of a vinyl monomer (a) containing from 5 to 80% by weight of an unsaturated carboxylic acid to obtain a polymer (A), forming a polymer (B) in the presence of a particle consisting of the resultant polymer (A) while adding a vinyl monomer (b) in an amount of 10 times by weight or less and at a rate of 3 times by weight per hour or more for the weight of the polymer (A), and treating the resultant multi-shell emulsion polymer with an alkaline material to neutralize and swell the polymer (A); or, after the neutralization treatment, further forming a polymer (C) by adding and emulsion-polymerizing a vinyl monomer (c) in an amount of 20 times by weight or less for the total weight of the polymer (A) and polymer (B). The emulsion particle is useful as a component of resin compositions for paints, paper-coating and heat-sensitive recording materials.

    摘要翻译: 一种干状结构的多壳乳液颗粒,其具有将颗粒的表面层与颗粒内部连接的一个或多个渗透孔,其粒径为0.1〜5.0μm,优选为0.1〜1.2μm 。 可以通过进行含有5〜80重量%的不饱和羧酸的乙烯基单体(a)的乳液聚合来制备颗粒,从而获得聚合物(A),在颗粒存在下形成聚合物(B) 在聚合物(A)的重量中加入乙烯基单体(b)的量为10重量份以下,以每小时3倍的速度加入得到的聚合物(A),以及 用碱性物质处理得到的多壳乳液聚合物以中和和膨胀聚合物(A); 或者在中和处理后,通过将聚合物(A)和聚合物(B)的总重量的20重量%以下的乙烯基单体(c)加入并乳液聚合,进一步形成聚合物(C) )。 乳液颗粒可用作涂料,纸涂层和热敏记录材料的树脂组合物的组分。