Polyalkylene glycol stabilized alkali swellable latex
    6.
    发明授权
    Polyalkylene glycol stabilized alkali swellable latex 失效
    聚亚烷基二醇稳定的碱溶胀性胶乳

    公开(公告)号:US4474919A

    公开(公告)日:1984-10-02

    申请号:US365190

    申请日:1982-04-05

    CPC分类号: D21H19/62 C08L57/04 D21H19/58

    摘要: The upward drift in viscosity which is characteristic of paper coating compositions prepared from alkali-swellable latices to which alkali has been added can be arrested at any desired level by including in the coating composition 0.1-10 parts by weight, per 100 parts by weight of dry solids in the uncompounded alkali-swellable latex, of a poly- C.sub.2-4 alkylene glycol having an average molecular weight of about 100-5,000. Polyethylene and polypropylene glycols having molecular weights of about 1,200 are shown to produce excellent results with latices of carboxylic copolymers of butadiene and styrene.

    摘要翻译: 由添加了碱的碱溶胀性胶乳制备的纸张涂料组合物的特性的粘度向上漂移可以通过在涂料组合物中包含0.1-10重量份的每100重量份的 具有平均分子量约为100-5,000的聚C2-4亚烷基二醇的未混合的碱溶胀性胶乳中的干固体。 分子量约1200的聚乙烯和聚丙二醇显示出与丁二烯和苯乙烯的羧酸共聚物的胶乳产生优异的结果。

    Water-redispersible powders of film-forming polymers prepared from
ethylenically unsaturated monomers
    10.
    发明授权
    Water-redispersible powders of film-forming polymers prepared from ethylenically unsaturated monomers 有权
    由烯属不饱和单体制备的成膜聚合物的水可再分散粉末

    公开(公告)号:US6080806A

    公开(公告)日:2000-06-27

    申请号:US101474

    申请日:1998-10-06

    CPC分类号: C08K5/175

    摘要: A water-redispersible powder composition comprising (a) 100 parts by weight of a powder consisting of a water-insoluble film-forming polymer prepared from at least one ethylenically unsaturated monomer and at least one monomer selected from monomers having a carboxylic function and acrylamide or methacrylamide, and (b) 2-40 parts by weight and preferably 8-22 parts by weight of at least one amino acid or a salt thereof. A method for preparing said composition and the use thereof are also disclosed.

    摘要翻译: PCT No.PCT / FR97 / 00030 Sec。 371 1998年10月6日第 102(e)日期1998年10月6日PCT 1997年1月8日PCT PCT。 公开号WO97 / 25371 日期1997年7月17日一种水分散性粉末组合物,其包含(a)100重量份由至少一种烯属不饱和单体制备的水不溶性成膜聚合物和至少一种选自以下的单体组成的粉末: 羧酸官能团和丙烯酰胺或甲基丙烯酰胺,和(b)2-40重量份,优选8-22重量份的至少一种氨基酸或其盐。 还公开了制备所述组合物的方法及其用途。