Synthetic resin powder and coating agents containing the same
    3.
    发明授权
    Synthetic resin powder and coating agents containing the same 失效
    合成树脂粉末和含有它的包衣剂

    公开(公告)号:US4268549A

    公开(公告)日:1981-05-19

    申请号:US56541

    申请日:1979-07-11

    摘要: What is disclosed is a synthetic resin powder of latex particles having an average particle size between 1 micron and 5 microns, which particles can be partially or completely loosely aggregated to form larger particles, said synthetic resin being a cross-linked copolymer of 75 to 99.5 percent by weight of a monomer mixture of methyl methacrylate and isobutyl methacrylate in a weight ratio of 1:3 to 3:1, 0.5 to 10 percent by weight of a cross-linking comonomer having at least two polymerizable double bonds, and 0 to 24.5 percent by weight of a further different ethylenically-unsaturated comonomer copolymerizable therewith, a coating agent containing a binder dissolved or dispersed therein together with such a resin powder, and a method of coating using such a coating agent to give coatings wherein the presence of the resin powder prevents blocking of the coatings without undue loss of luster therein.

    摘要翻译: 公开的是具有1微米至5微米平均粒度的胶乳颗粒的合成树脂粉末,该颗粒可以部分或完全松散聚集形成较大的颗粒,所述合成树脂为75至99.5的交联共聚物 重量比的甲基丙烯酸甲酯和甲基丙烯酸异丁酯的重量比为1:3至3:1的单体混合物,0.5至10重量%的具有至少两个可聚合双键的交联共聚单体,和0至24.5重量% 可与其共聚的其它不同的烯键式不饱和共聚单体的重量百分数,含有与这种树脂粉末一起溶解或分散在其中的粘合剂的涂布剂以及使用这种涂布剂进行涂布的方法,得到其中存在树脂 粉末可以防止涂层的堵塞,而不会在其中过多的光泽损失。

    Method for strengthening fibrous articles
    9.
    发明授权
    Method for strengthening fibrous articles 失效
    强化纤维制品的方法

    公开(公告)号:US4476182A

    公开(公告)日:1984-10-09

    申请号:US455661

    申请日:1983-01-05

    摘要: What are disclosed are a method for the reinforcement of a fibrous article with an aqueous dispersion of a resin, free of formaldehyde and acrylonitrile, comprising at least 40 weight percent of alkyl acrylates and/or methacrylates having at least 4 carbon atoms in the alkyl group; up to 57 weight percent of alkyl acrylates or methacrylates having not more than 3 carbon atoms in the alkyl group, or of styrene; less than 1 weight percent of acrylic acid or of methacrylic acid; and from 3 to 15 weight percent of a hydroxyalkyl ester of an unsaturated carboxylic acid, as well as reinforced fibrous articles made by this method and distinguished by high wet strength and by low loss of the resin binder on washing with boiling water.

    摘要翻译: 所公开的是使用不含甲醛和丙烯腈的树脂的水性分散体增强纤维制品的方法,其包括至少40重量%的在烷基中具有至少4个碳原子的丙烯酸烷基酯和/或甲基丙烯酸烷基酯 ; 至多57重量%的烷基中具有不超过3个碳原子的丙烯酸烷基酯或甲基丙烯酸烷基酯或苯乙烯; 丙烯酸或甲基丙烯酸少于1重量%; 和3至15重量%的不饱和羧酸的羟烷基酯,以及通过该方法制备的增强纤维制品,其特征在于高湿强度和用沸水冲洗时树脂粘合剂的低损失。