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公开(公告)号：US3959553A
公开(公告)日：1976-05-25
申请号：US414331
申请日：1973-11-09
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/257 , Y10T428/2982 , Y10T428/31529
摘要： The invention relates to magnetic discs in which first a non-magnetic intermediate layer and then the magnetic coating are applied by conventional methods to an aluminum disc. The intermediate layer applied to the non-magnetic metallic carrier disc is a hard non-magnetic coating which can be polished and which consists of a dispersion of a pulverulent mixture of finely divided inorganic non-magnetic pigments having a Mohs' hardness of at least 7 in a binder which can be cured and which provides firm cohesion of the pigment particles and good adhesion thereof to the non-magnetic base disc, the pigment mixture containing at least 3 percent by weight of corundum powder having a particle size of from about 1 to 20.mu.u. Magnetic discs with very thin magnetic coatings which possess good magnetic and mechanical properties and whose thickness varies only minimally are thus produced in a simple manner.
摘要翻译： 本发明涉及磁盘，其中首先将非磁性中间层然后通过常规方法将磁性涂层施加到铝盘上。 施加到非磁性金属载体盘的中间层是可以抛光的硬质非磁性涂层，其由具有莫氏硬度至少为7的细分的无机非磁性颜料的粉末混合物的分散体组成 在可固化的粘合剂中，其提供颜料颗粒的牢固粘合和对非磁性基盘的良好粘附性，所述颜料混合物含有至少3重量％的刚玉粉末，其具有约1至 20亩 因此，以简单的方式制造具有良好磁性和机械性能并且其厚度仅最小程度变化的非常薄的磁性涂层的磁盘。
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公开(公告)号：US4557947A
公开(公告)日：1985-12-10
申请号：US127085
申请日：1980-03-04
申请人： Karl Deimling , Roland Falk , Aribert Krug , Peter Nagel , Rudolf Sand
发明人： Karl Deimling , Roland Falk , Aribert Krug , Peter Nagel , Rudolf Sand
CPC分类号： C09G1/18
摘要： A process for polishing the ground surfaces of magnetic storage disks which consist of a rigid substrate provided on both sides with a firmly adhering magnetic coating consisting of a magnetic material finely dispersed in an organic polymer and conventional additives, by pressing felt rings or felt disks against the moving magnetic storage disk, to the surface of which an aqueous emulsion containing butyl acetate with or without butane-1,4-diol is applied.
摘要翻译： 一种用于抛光磁性存储盘的接地表面的方法，其由设置在两侧的刚性基板和由紧密粘附的磁性涂层组成，所述磁性涂层由微细分散在有机聚合物中的磁性材料和常规添加剂组成，通过将毡环或毡盘压靠在其上 移动的磁性存储盘，其表面涂覆含有或不含有丁烷-1,4-二醇的乙酸丁酯的水性乳液。
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