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    • 3. 发明申请
    • Method of deinking
    • 脱墨方法
    • US20060102298A1
    • 2006-05-18
    • US10521795
    • 2003-07-22
    • Bernhard NellessenChristina Northfleet
    • Bernhard NellessenChristina Northfleet
    • D21C5/02
    • D21H17/59D21C5/025D21H17/13Y02W30/648
    • A method of deinking printed paper comprises pulping the paper to form an aqueous slurry, adding a deinking additive to the paper, and removing detached ink by flotation, wherein the additive comprises an organo-modified siloxane comprising units of the formula: [R1aZbSiO(4-a-b)/2]n in which each R1 is independently selected from a hydrogen atom, an alkyl, aryl, alkenyl, aralkyl, alkaryl, alkoxy, alkanoyloxy, hydroxyl, ester or ether group; each Z is independently selected from an alkyl group substituted with an amine, amide, carboxyl, ester, or epoxy group, or a group —R2—(OCPH2P)q (OCrH2r)s—R3; n is an integer greater than 1; a and b are independently 0, 1, 2 or 3; R2 is an alkylene group or a direct bond; R3 is a group as defined for R1 or Z above; p and r are independently an integer from 1 to 6; q and s are independently 0 or an integer such that 1≦q+s≧400; and wherein each molecule of the organo-modified siloxane contains at least one group Z.
    • 一种脱墨印刷纸的方法包括将纸制浆以形成含水浆料,向纸中加入脱墨添加剂,以及通过浮选除去分离的油墨,其中所述添加剂包含有机改性的硅氧烷,其包含下式的单元:[R 0 (4-ab)/ 2 其中每个 R 1独立地选自氢原子,烷基,芳基,烯基,芳烷基,烷芳基,烷氧基,烷酰氧基,羟基,酯或醚基; 每个Z独立地选自被胺,酰胺,羧基,酯或环氧基取代的烷基,或基团-R 2 - (OC) (2)式(3)其中R 1,R 2,R 3,R 3,R 3,R 3,R 3, ; n是大于1的整数; a和b独立地为0,1,2或3; R 2是亚烷基或直接键; R 3是如上定义的R 1或Z 2的基团; p和r独立地为1至6的整数; q和s独立地为0或整数,使得1 = q + s> = 400; 并且其中所述有机改性的硅氧烷的每个分子含有至少一个基团Z。