摘要:
A magnetic recording medium having stable running properties and durability even under the severe environmental conditions of low or high humidity is disclosed. The magnetic recording medium comprises a non-magnetic support and a magnetic layer of a thin ferromagnetic metal film formed thereon, wherein the thin ferromagnetic metal film has thereon at least one member selected from fluorine-containing multi-chain type compounds represented by the following general formula (I):(P).sub.m Q(R).sub.n (I)wherein Q represents (m+n) valent organic residue; R represents a monovalent group comprising a fluoropolyether chain; P represents a monovalent oxo-acid derivative group or a monovalent group which is a salt of an oxo-acid derivative; m represents an integer of 1 or more; and n represents an integer of 2 or more.
摘要:
A magnetic recording medium is disclosed, comprising a non-magnetic support having provided thereon a magnetic layer comprising a ferromagnetic metal thin film, wherein a protective layer made mainly of a fluorine-based resin represented by formula (I): ##STR1## wherein m is an integer of 1 or more, and n is an integer of 10 or more, is provided on the ferromagnetic metal thin film.
摘要:
A ferromagnetic thin metal film type magnetic recording medium is disclosed, comprising a non-magnetic support having thereon a ferromagnetic thin metal film, wherein a perfluoropolyether having at least one polar group having the saturation adsorption amount (mg/m.sup.2) of at least 4.0 mg/m.sup.2 against the ferromagnetic thin metal film is coated or applied onto the surface of the ferromagnetic thin metal film. There is also disclosed a method for preparing a ferromagnetic thin metal film type magnetic recording medium comprising forming a ferromagnetic thin metal film, subjecting the ferro-magnetic thin metal film to a treatment with oxygen gas, ozone gas, a heat treatment or a treatment with an inert gas, and then applying a perfluoropolyether having at least one polar group to the ferromagnetic thin metal film.
摘要翻译:公开了一种铁磁性薄金属膜型磁记录介质,其包括其上具有铁磁性薄金属膜的非磁性载体,其中具有至少一个具有饱和吸附量(mg / m 2)的极性基团的全氟聚醚至少为4.0mg / m 2相对铁磁性金属薄膜被涂覆或施加到铁磁性金属薄膜的表面上。 还公开了一种制备铁磁性薄金属膜型磁记录介质的方法,该方法包括形成铁磁性金属薄膜,对铁磁性金属薄膜进行氧气处理,臭氧气体处理,热处理或用 惰性气体,然后将具有至少一个极性基团的全氟聚醚加到铁磁薄金属膜上。
摘要:
A magnetic recording medium comprising a non-magnetic support having a magnetic layer provided thereon, wherein a higher fatty acid hydroxylaluminum salt represented by formula (I) is provided in or on the magnetic layer:(R.sup.1 COO).sub.n Al(OH).sub.3-nwherein R.sup.1 is a hydrocarbon group having from 10 to 26, and n is an integer of 1 or 2. The magnetic recording medium has a low coefficient of friction and good running durability even when used or stored under high-temperature and high humidity conditions.
摘要:
A magnetic recording medium comprising a nonmagnetic support having provided thereon a magnetic layer comprising ferromagnetic particles dispersed in a binder, said magnetic layer having therein or on its surface a fluorine-containing oligomer surfactant which has a side chain having a poly(alkylene oxide) structure, a side chain terminated with a perfluoroalkyl group, and a side chain derived from an ester of acrylic or methacrylic acid with an aliphatic alcohol.
摘要:
A wire harness for an appliance containing a combination of selectable electrical systems is separated into a common circuit which is always provided independently of presence or absence of the selectable electrical systems, and dedicated circuits one for each of the selectable electrical systems, the common circuit and the dedicated circuits of the selected electrical systems are detachably joined to each other via a branch connector to form the wire harness whereby simple production control and high production efficiency are assured and changes in production or design can be readily dealt with in the production of a wire harness.
摘要:
A magnetic recording medium comprising a nonmagnetic support having formed thereon a magnetic layer containing a ferromagnetic fine powder, a binder, and carbon black and formed on the opposite side of the nonmagnetic support to the magnetic layer-carrying side a backing layer containing a binder and carbon black, wherein (i) the Young's modulus of the magnetic layer is from 600 to 1100 kg/mm.sup.2 and the Young's modulus of the backing layer is from 200 to 400 kg/mm.sup.2, or (ii) the surface free energy of the backing layer is at least 1 dyn/cm higher than the surface free energy of the magnetic layer, the gloss of the magnetic layer is at least 150, and the gloss of the backing layer is from 2 to 7.
摘要翻译:一种包含非磁性载体的磁记录介质,其上形成有含有铁磁性细粉末,粘合剂和炭黑的磁性层,并且在非磁性载体的相对侧上形成有磁性层承载侧,所述背衬层含有粘合剂和 炭黑,其中(i)磁性层的杨氏模量为600至1100kg / mm 2,背衬层的杨氏模量为200至400kg / mm 2,或(ii)背衬的表面自由能 层比磁性层的表面自由能高至少1dyn / cm,磁性层的光泽度至少为150,背衬层的光泽度为2至7。
摘要:
A magnetic recording medium comprising a nonmagnetic support having thereon a magnetic layer, wherein an ester compound obtained by condensing a saturated fatty acid having from 6 to 26 carbon atoms and an unsaturated alcohol having from 8 to 26 carbon atoms is present on or in the magnetic layer.
摘要:
An optical recording medium comprising a substrate and a recording layer made of metal and/or semi-metal and on which data can be recorded with a laser beam, wherein a plasma polymerization layer is formed on at least an upper surface of said recording layer.
摘要:
A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a thin magnetic metal film and a protective layer mainly comprising carbon having a graphite structure containing at least one element selected from the group consisting of Mn, Mo, Nb, Ta, Ti, V, Cr and W.