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    • 5. 发明申请
    • HYDROXYETHYL CELLULOSE GRAFTED ACRYLIC LATEX
    • 羟丙基纤维素接枝丙烯酸酯
    • WO2013043579A1
    • 2013-03-28
    • PCT/US2012/055883
    • 2012-09-18
    • BENJAMIN MOORE & CO.COLUMBIA INSURANCE COMPANY
    • C09D101/00
    • C08K3/20C08B11/08C08B11/20C08F6/006C08F8/10C08F251/02C08L1/08C08L1/284C09D151/02C08F220/18C08F212/08C08F220/06C08F220/56C08L51/02
    • The present invention relates to latex compositions comprising hydroxyethyl cellulose grafted acrylic polymer emulsions and methods for preparing same without gelling or coagulation. The latex composition comprises at least about 0.2 % of HEC by weight relative to the monomer weight, contains at least about 45% solid, and the average mean volume (mV) latex particle size is in the range of about 320- about 850 nm. Paint compositions incorporating the HEC grafted acrylic latex show high viscosity at static conditions and have no color flow and no syneresis compared paints containing a latex without HEC grafting. The present invention also relates to a cross-linking mechanism that cross-links latex particles at ambient conditions. This cross-linking mechanism comprises diacetone acrylamide (DAAM) and methacrylamide (MAM) with or without styrene.
    • 本发明涉及包含羟乙基纤维素接枝的丙烯酸聚合物乳液的胶乳组合物及其制备方法而不凝胶化或凝结。 胶乳组合物相对于单体重量包含至少约0.2重量%的HEC,含有至少约45%的固体,平均体积(mV)胶乳粒度在约320-约850nm的范围内。 掺入HEC接枝丙烯酸胶乳的涂料组合物在静态条件下显示出高粘度,并且没有颜色流动,没有脱水收缩比较含有没有HEC接枝的胶乳的涂料。 本发明还涉及在环境条件下交联胶乳颗粒的交联机理。 该交联机理包括具有或不具有苯乙烯的双丙酮丙烯酰胺(DAAM)和甲基丙烯酰胺(MAM)。