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    • 1. 发明申请
    • METHOD AND DEVICE FOR PRODUCING A COATING MATERIAL
    • 用于生产涂料的方法和装置
    • US20110134717A1
    • 2011-06-09
    • US13057117
    • 2009-08-05
    • Hisashi FuruichiTsumoru Ohata
    • Hisashi FuruichiTsumoru Ohata
    • B01F13/06
    • B01F13/1027B01F7/00508B01F7/26C09D7/80H01G11/28H01G11/86H01M4/0404H01M4/13Y02E60/13Y02T10/7022
    • A method for producing a coating material in which ingredients including a powder and a solvent are mixed is provided. The method includes: a preliminary stirring step (100) of preliminarily stirring the ingredients; a high-speed stirring step of supplying an intermediate material obtained by the preliminary stirring step to a high-speed stirrer 300 including a container 310 and a rotational member 330 rotating at a high speed slightly inward of an inner wall surface 311 of the container, and continuously stirring the intermediate material caused to exist in the form of a film between the rotational member 330 and the inner wall surface 311 by a centrifugal force of the rotational member 330; and a vacuum defoaming step of supplying a stirred material obtained by the high-speed stirring step to a treatment tank 501, 502, 503 provided with a stirring blade to perform vacuum defoaming.
    • 提供了混合有粉末和溶剂的成分的涂料的制造方法。 该方法包括:初步搅拌成分的预搅拌步骤(100) 将通过预备搅拌步骤获得的中间材料供给到高速搅拌器300的高速搅拌步骤,所述高速搅拌器300包括容器310和旋转构件330,所述容器310和容器310的内壁表面311稍微高速地旋转, 并通过旋转构件330的离心力连续地搅拌在旋转构件330与内壁面311之间以膜的形式存在的中间材料; 以及将通过高速搅拌工序获得的搅拌材料供给到设置有搅拌叶片的处理槽501,502,503进行真空消泡的真空消泡工序。
    • 10. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US4361627A
    • 1982-11-30
    • US198152
    • 1980-10-17
    • Tsumoru Ohata
    • Tsumoru Ohata
    • B41J2/485C08G18/69G06K15/08G06K15/10G11B5/702H04L17/16G11B5/70
    • C08G18/692C08G18/69G11B5/7022Y10S428/90Y10T428/31609Y10T428/31931
    • The present invention relates to a binding agent for a magnetic recording medium which consists of a non-magnetic substrate with a magnetic layer formed thereon. The magnetic layer is composed of a finely divided ferromagnetic substance dispersed in the resinous binding agent. The binding agent consists of: a binder containing a butadiene-containing resin, having an average molecular weight of 1,000-10,000, and being selected from the group consisting of butadiene homopolymers and copolymers of butadiene with acrylonitrile and/or styrene which contains at least 60% by weight of butadiene, with the butadiene-containing resin having on the average more than 1.5 functional end groups per molecule, which are reactive with isocyanate groups; and a polyisocyanate compound having on the average not less than 2 isocyanate groups per molecule, the polyisocyanate compound being present in between 5 and 50 parts by weight, based upon 100 parts by weight of the binder. The use of this binding agent allows for greater dispersion of the ferromagnetic powder as the low molecular weight resin has a high solubility in organic solvents. Further, the butadiene-isocyanate crosslinks formed, act to improve wear resistance and make it possible to obtain a desirable elastic modulus.
    • 本发明涉及一种用于磁记录介质的粘合剂,其由形成在其上的磁性层的非磁性基材组成。 磁性层由分散在树脂结合剂中的细碎铁磁物质构成。 粘合剂由以下物质组成:含有含丁二烯的树脂的粘合剂,其平均分子量为1,000-10,000,并且选自丁二烯均聚物和丁二烯与丙烯腈和/或苯乙烯的共聚物,其含有至少60 重量百分比的丁二烯,其中含丁二烯的树脂每分子平均具有大于1.5个官能端基,其与异氰酸酯基反应; 和每分子平均不少于2个异氰酸酯基团的多异氰酸酯化合物,基于100重量份的粘合剂,多异氰酸酯化合物的存在量在5至50重量份之间。 当低分子量树脂在有机溶剂中具有高溶解度时,使用该粘合剂允许铁磁粉末更大的分散。 此外,形成的丁二烯 - 异氰酸酯交联作用是提高耐磨性,并且可以获得所需的弹性模量。