Hydraulic cement composition
    1.
    发明授权
    Hydraulic cement composition 失效
    水泥水泥组成

    公开(公告)号:US4906298A

    公开(公告)日:1990-03-06

    申请号:US228823

    申请日:1988-08-02

    IPC分类号: C04B24/26

    CPC分类号: C04B24/2664

    摘要: A hydraulic cement composition comprising hydraulic cement and a copolymer of 60 to 85 mol % of an alpha,beta-unsaturated dicarboxylic acid and 40 to 15 mol % of an olefin or a water-soluble salt thereof, said copolymer having a number average molecular weight of 300 to 10,000 and containing not more than 10% by weight of a high-molecular-weight polymer having a molecular weight of at least 20,000.

    摘要翻译: 一种水硬性水泥组合物,其包含水硬性水泥和60至85mol%的α,β-不饱和二羧酸和40至15mol%的烯烃或其水溶性盐的共聚物,所述共聚物具有数均分子量 为300〜10000,含有不超过10重量%的分子量至少为20,000的高分子量聚合物。

    Novel water-soluble copolymer
    3.
    发明授权
    Novel water-soluble copolymer 失效
    新型水溶性共聚物

    公开(公告)号:US4652621A

    公开(公告)日:1987-03-24

    申请号:US658165

    申请日:1984-10-05

    摘要: A novel water-soluble copolymer which is characterized by being an addition copolymer comprising 5-70 mole % of (a) an N-substituted .alpha.,.beta.-unsaturated dicarboxylic acid 5-membered ring imide having a sulfo or sulfoxy group-containing residue attached to the nitrogen atom, 30-95 mole % of (b) an .alpha.,.beta.-unsaturated aliphatic monocarboxylic acid and 0-50 mole % of (c) and .alpha.,.beta.-unsaturated aliphatic dicarboxylic acid and having a number average molecular weight of 500-5,000,000, and a salt thereof.

    摘要翻译: 一种新型水溶性共聚物,其特征在于包含5-70摩尔%的(a)具有连接有磺基或含磺氧基的残基的N-取代的α,β-不饱和二羧酸5元环酰亚胺的加成共聚物 (b)α,β-不饱和脂肪族单羧酸和0-50摩尔%的(c)和α,β-不饱和脂族二羧酸的30-95摩尔%,并且具有数均分子量为 500-5,000,000,及其盐。