摘要:
A magnetic recording medium having a magnetic layer on one surface of a substrate and a back layer on the other surface, which is characterized by that the back layer is that formed by dispering a filler such as carbon black, graphite, SiO.sub.2, TiO.sub.2, Al.sub.2 O.sub.3,Cr.sub.2 O.sub.3, SiC, CeO.sub.2, CaCO.sub.3, zinc oxide, geothite, .alpha.Fe.sub.2 O.sub.3, talc, kaolin, CaSO.sub.4, boron nitride, Teflon powder, graphite fluoride, molybdenum disulfide, zirconia etc. In a binder containing a radiation sensitive curable resin such as acryl-modified vinyl chloride - vinyl acetate - vinyl alcohol copolymer, acryl-modified polyurethane elastomer, acryl-modified polyester resin, etc. and curing it prior to rolling. The obtained back layer is very tough and can reduce the number of dropouts.
摘要翻译:一种磁性记录介质,其在基板的一个表面上具有磁性层,而在另一个表面上具有背层,其特征在于,背层是通过分散诸如炭黑,石墨,SiO 2,TiO 2,Al 2 O 3 ,Cr 2 O 3,SiC,CeO 2,CaCO 3,氧化锌,Geothite,αFe2 O 3,滑石,高岭土,CaSO 4,氮化硼,特氟隆粉末,氟化石墨,二硫化钼,氧化锆等。在含有辐射敏感性固化树脂如丙烯酸 改性氯乙烯 - 乙酸乙烯酯 - 乙烯醇共聚物,丙烯酸改性聚氨酯弹性体,丙烯酸改性聚酯树脂等,并在轧制前固化。 获得的背层非常坚硬,可以减少辍学次数。
摘要:
A magnetic recording medium which has a protective layer on a magnetic recording layer coated on a substrate and said protective layer comprises polyurethane and nitrocellulose in which isopropyl alcohol originally present has been replaced by a resin selected from the group consisting of polyurethane resins, polybutadiene resins, butadiene-acrylonitrile copolymers, vinyl chloride-vinyl acetate-vinyl alcohol copolymers, vinyl chloride-vinyl acetate copolymers, vinyl chloride-vinylidene chloride copolymers, vinylidene chloride-acrylonitrile-copolymers, vinyl acetate resins, epoxy resins, phenoxy resins, polyvinylbutyral resins, polyvinyl formal resins and polyester resins.
摘要:
The present invention relates to a process for treating sol-gel capsules comprising a cosmetic or pharmaceutical active material with an inorganic material, as well as sol-gel capsules produced by a process according to the present invention and formulations comprising such sol-gel capsules.
摘要:
A steering control apparatus prevents interference between a steering operation of a driver and a steering control operation of the steering control apparatus by detecting a steering operation so as to decrease an amount of the steering control operation when the steering operation is performed by the driver. A guide line provided on a vehicle moving lane on which the vehicle is moving is recognized so as to set a target position on the vehicle moving lane based on a result of recognition of the guide line. A steering control operation is performed so that the vehicle moves to trace the target position. An amount of each component of a steering operation applied to a steering wheel is detected by a steering angle sensor and a steering torque sensor. An amount of the steering control operation is corrected so that the amount of the steering control operation is decreased in accordance with the amount of each component of the steering operation.
摘要:
A cellulose fiber is immersed in a cellulose fiber dissolving agent such as tertiary amine-N-oxide, lithium chloride/N,N-dimethylacetoamide or N-methylmorpholine-N-oxide under conditions where the dissolving agent does not dissolve the cellulose fiber. Therefore, the water absorbing property and moisture absorbing and discharging property of the cellulose fiber can be improved without deteriorating the strength and feeling of the cellulose fiber.
摘要:
A novel phthalocyanine compound having improved solubility and high purity and containing a polymerizable vinyl group within its molecule is provided. Intermediates to this phthalocyanine compound also have improved solubility and high purity. Further, with the novel phthalocyanine compound used as a starting monomer, a novel polymer is obtained which has a high content of (metal) phthalocyanine and is easy to control the orientation of phthalocyanine rings. The polymer having improved solubility and high purity is expected of use as functional material such as catalysts and recording material.
摘要:
Novel naphthalocyanine compounds are provided including nitro- and amino-substituted naphthalocyanine compounds, and vinyl-containing naphthalocyanine compounds. The compounds have improved solubility and high purity and are expected to find use as photo-functional materials such as dyes. Polymers are obtained using the vinyl-containing naphthalocyanine compounds. The polymers also have improved solubility, high purity, a high naphthalocyanine content and ease of control of the orientation of naphthalocyanine rings and are expected of use as various functional materials.
摘要:
A back coating resin composition for a magnetic recording medium comprising:(A) a plastic compound having a molecular weight of from 5,000 to 100,000 and containing at least two radiation-curable unsaturated double bonds;(B) a rubber-like compound having a molecular weight of from 3,000 to 100,000 and containing at least one radiation-curable unsaturated double bond or containing no such double bond; and(C) a compound having a molecular weight of from 200 to 3,000 and containing at least one radiation-curable unsaturated double bond.
摘要:
In a magnetic recording medium of the hard disk type comprising a rigid substrate and a magnetic layer formed thereon, the substrate is plasma treated at frequencies in the range of 10 to 200 kHz in an inorganic gas containing O; N and H; and N, H and O.
摘要:
A magnetic recording medium comprising a plastic base film, a thin magnetic metal layer formed on one side of the base film and a backing layer formed on the other side of the base film, characterized in that the backing layer is composed essentially of a thermoset or radiation-cured resin and carbon black and inorganic compound powder uniformly dispersed in the resin, and has a surface roughness of from 0.05 to 0.4 .mu.m, said carbon black having an average particle size of from 10 to 150 m.mu.m as measured by an electron microscope, said inorganic compound powder having a Mohs hardness of at most 6 and a particle size of from 10 to 500 m.mu.m, and the ratio of the carbon black to the inorganic compound powder being from 1:9 to 9:1.