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    • 4. 发明授权
    • Electrostatic recording material and method for the production thereof
    • 静电记录材料及其制造方法
    • US4268595A
    • 1981-05-19
    • US91277
    • 1979-11-05
    • Kazuharu KatagiriShozo IshikawaShigeto OhtaMakoto Kitahara
    • Kazuharu KatagiriShozo IshikawaShigeto OhtaMakoto Kitahara
    • H04N1/29G03G5/02G03C1/87
    • G03G5/0208Y10T428/31906Y10T428/31935
    • An electrostatic recording material comprising a support having formed thereon a dielectric layer composed of a terpolymer consisting of (a) methacrylic acid, (b) a monomer selected from the group consisting of (1) acrylic acid esters containing at least 4 carbon atoms and (2) methacrylic acid esters containing at least 5 carbon atoms, and (c) a monomer selected from the group consisting of (1) acrylic acid esters containing at least 4 carbon atoms and (2) methacrylic acid esters containing at least 5 carbon atoms, wherein monomer (b) and monomer (c) are different and at least one of the monomers (b) and (c) is an acrylic acid ester containing at least 11 carbon atoms or a methacrylic acid ester containing at least 8 carbon atoms, and a method for producing an electrostatic recording material, which comprises converting such a terpolymer to a water-soluble or water-emulsifiable salt of the terpolymer in which about 20 to 100 mol% of the carboxyl groups present form a salt with ammonia and/or a volatile amine, dissolving or dispersing the terpolymer salt in water, coating the resulting solution or dispersion onto a support, and drying the coating to volatilize the ammonia and/or volatile amine.
    • 一种静电记录材料,包括其上形成有由以下组成的三元共聚物构成的介电层的载体:(a)甲基丙烯酸,(b)选自(1)含有至少4个碳原子的丙烯酸酯的单体和( 2)含有至少5个碳原子的甲基丙烯酸酯,和(c)选自(1)含有至少4个碳原子的丙烯酸酯和(2)含有至少5个碳原子的甲基丙烯酸酯的单体, 其中单体(b)和单体(c)不同,并且单体(b)和(c)中的至少一种是含有至少11个碳原子的丙烯酸酯或含有至少8个碳原子的甲基丙烯酸酯, 一种制备静电记录材料的方法,包括将这种三元共聚物转化为三元共聚物的水溶性或水可乳化盐,其中约20至100摩尔%的羧基与氨形成盐与氨 和/或挥发性胺,将三元共聚物盐溶解或分散在水中,将所得溶液或分散体涂布到载体上,并干燥涂层以挥发氨和/或挥发性胺。