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    • 3. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US4741959A
    • 1988-05-03
    • US925420
    • 1986-10-31
    • Chiaki AbeHiroyuki KanaiAkira IshikawaShigetoshi SuzueTakashi TakeuchiTakahide Minami
    • Chiaki AbeHiroyuki KanaiAkira IshikawaShigetoshi SuzueTakashi TakeuchiTakahide Minami
    • G11B5/702G11B5/71G11B5/73
    • G11B5/71G11B5/702G11B5/7305Y10S428/90Y10T428/2991Y10T428/31609Y10T428/31935Y10T428/31942Y10T428/31971
    • A magnetic recording medium comprises a support the magnetic layer and a magnetic layer, coated on said support, comprising magnetic powder, a binder, (I) an ester compound having the formula: ##STR1## in which R1 and R2 are each a saturated alkyl group having 1 to 25 carbon atoms, branched or straight, the total carbon number of R1 and R2 being from 22 to 34, and R3 is a saturated or unsaturated alkyl group having 7 to 29 carbon atoms, branched or straight, and (II) an ester compound having the formula: ##STR2## in which R4 is an aliphatic hydrocarbon group having 1 to 29 carbon atoms, straight or branched, and R5 is an aliphatic hydrocarbon group having 1 to 23 carbon atoms, straight or branched, or a straight aliphatic hydrocarbon group having 24 to 36 carbon atoms, the total carbon number of R4 and R5 being 15 to 65. Alternatively, the ester (II) compound can be replaced by an aliphatic acid having from 8 to 30 carbon atoms. The magnetic layer comprising compounds (I) and (II) may also include an aliphatic acid having from 10-30 carbon atoms.
    • 一种磁记录介质包括一个磁性层和一个涂覆在所述载体上的磁性层的载体,包括磁性粉末,粘合剂,(I)具有下式的酯化合物:其中R 1和R 2各自为 具有1〜25个碳原子的饱和烷基,分支或直链,R1和R2的总碳数为22〜34,R3为碳数为7〜29的饱和或不饱和烷基,分支或直链, (II)具有下式的酯化合物:其中R 4是直链或支链的具有1至29个碳原子的脂族烃基,R 5是具有1至23个碳原子的脂族烃基,直链 或支链或具有24至36个碳原子的直链脂族烃基,R4和R5的总碳数为15至65.或者,酯(II)化合物可以被具有8至30个碳的脂族酸代替 原子 包含化合物(I)和(II)的磁性层还可以包括具有10-30个碳原子的脂族酸。
    • 6. 发明授权
    • Deinking agent for regenerating waste printed paper comprising reaction
product of compound having an OH group, a dicarboxylic acid, or an
anhydride thereof
    • 用于再生废纸的脱墨剂包括具有OH基,二羧酸或其酸酐的化合物的反应产物
    • US5304316A
    • 1994-04-19
    • US946777
    • 1992-09-18
    • Hideaki UrushibataKoji HamaguchiAkio KimuraShigetoshi Suzue
    • Hideaki UrushibataKoji HamaguchiAkio KimuraShigetoshi Suzue
    • C09D9/00D21C5/02C09K3/00
    • D21C5/027C09D9/00Y02W30/648
    • A deinking agent for regenerating waste paper, which comprises a reaction product obtained by reacting a compound having an OH group, which is represented by the following (A) or (B) with a dicarboxylic acid or an anhydride thereof as an active ingredient:(A) a compound obtained by adding ethylene oxide and propylene oxide to a higher fatty acid having 8 to 22 carbon atoms in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles on average; or(B) an incomplete ester of a polyhydric alcohol, to which ethylene oxide and propylene oxide have been added in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles per OH group on average, and a higher fatty acid having 8 to 22 carbon atoms;is disclosed. With the use of this deinking agent, a deinked pulp having a high degree of whiteness and a small residual ink number can be obtained.
    • 用于再生废纸的脱墨剂,其包含通过使由以下(A)或(B)表示的具有OH基团的化合物与二羧酸或其酸酐作为活性成分反应获得的反应产物:( A)通过将环氧乙烷和环氧丙烷添加到具有8〜22个碳原子的高级脂肪酸中以使环氧乙烷/环氧丙烷的摩尔比为1〜4的方式得到的化合物,并控制总量 的环氧乙烷和环氧丙烷平均为10至50摩尔; 或(B)多元醇的不完全酯,其中加入了环氧乙烷和环氧丙烷,以将环氧乙烷/环氧丙烷的摩尔比控制在1至4之间,并且控制总共的 环氧乙烷和环氧丙烷的平均添加量相对于OH基为10〜50摩尔,碳原子数为8〜22的高级脂肪酸; 被披露。 通过使用该脱墨剂,可以得到白度高,残留墨数少的脱墨纸浆。