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    • 3. 发明授权
    • Ink follower for water-based ink ballpoint pen
    • 水性墨水圆珠笔墨水跟随器
    • US07179005B2
    • 2007-02-20
    • US10499966
    • 2002-12-27
    • Masaru MiyamotoYoji Takeuchi
    • Masaru MiyamotoYoji Takeuchi
    • B43K7/08
    • B43K7/08B43K7/01
    • An ink follower for a ballpoint pen using a water-based ink in which a value of the test for oil separation (60° C., 24 hours) according to JIS K 2220-5.7-1993 is 0.5 to 12% and which has a viscoelasticity predominant in an elastic response or a value of tan δ of 0.1 to 1.5 at a temperature of 25° C. and in the full frequency range of an angular frequency of 0.1 to 630 rad/sec, and it contains as a base oil, a non-water-soluble organic solvent having a viscosity of 5 Pas·sec or less at a temperature of 25° C. and a shearing speed of 1 to 400 sec−1. Polybutene, mineral oil and silicone oil can be used as the base oil.
    • 一种使用水性油墨的圆珠笔用墨汁随动体,其中根据JIS K 2220-5.7-1993的油分离试验值(60℃,24小时)为0.5〜12%,其具有 在25℃的温度和角频率为0.1〜630弧度/秒的全频率范围内,以弹性响应为主的粘弹性或tanδ为0.1〜1.5的值,并且含有基油, 在25℃的温度和1〜400秒-1的剪切速度下粘度为5Pa·sec以下的非水溶性有机溶剂。 聚丁烯,矿物油和硅油可用作基础油。
    • 4. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US4830923A
    • 1989-05-16
    • US823364
    • 1986-01-28
    • Kenji SumiyaYoshinori YamamotoShigeo AoyamaYoji Takeuchi
    • Kenji SumiyaYoshinori YamamotoShigeo AoyamaYoji Takeuchi
    • C09D5/23G11B5/702
    • G11B5/7022Y10S428/90Y10T428/31609
    • A magnetic recording medium comprising a substrate and a magnetic layer coated on the substrate which comprises a magnetic powder and a binder resin, wherein said binder resin comprises a modified polymer selected from the group consisting of a polymer having a backbone chain comprising a vinyl chloride/vinyl acetate/vinyl alcohol terpolymer and a polymer having a backbone chain comprising polyurethane to both of which a phosphoric acid group of the formula: ##STR1## wherein A is a hydrogen atom, an alkali metal atom or a hydrocarbon group, and n is 0 or 1 is bonded, the magnetic layer having improved surface smoothness, improved durability and excellent electromagnetic conversion characteristics particularly in the short wavelength range.
    • 一种磁记录介质,包括涂覆在所述基材上的基材和磁性层,所述磁性层包含磁性粉末和粘合剂树脂,其中所述粘合剂树脂包含改性聚合物,所述改性聚合物选自具有主链的聚合物,所述主链包含氯乙烯/ 乙酸乙烯酯/乙烯醇三元共聚物和具有包含聚氨酯的主链的聚合物,二者均具有下式的磷酸基团:其中A是氢原子,碱金属原子或烃基,和 n是0或1键合,磁性层具有改善的表面光滑度,改进的耐久性和优异的电磁转换特性,特别是在短波长范围内。