Sulfonic acid derivatives of hydroxamic acids and their use as medicinal products
申请人:——
公开号:US20030176486A1
公开(公告)日:2003-09-18
The present invention relates to a novel sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof. More particularly, the present invention relates to a sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof, which is useful as an inhibitor of lipopolysaccharides (LPS). In addition, the present invention relates to a novel intermediate compound useful for the synthesis of this sulfonic acid derivative of hydroxamic acid.
SULFONIC ACID DERIVATIVES OF HYDROXAMIC ACIDS AND THEIR USE AS MEDICINAL PRODUCTS
申请人:Welfide Corporation
公开号:EP1306367A1
公开(公告)日:2003-05-02
The present invention relates to a novel sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof. More particularly, the present invention relates to a sulfonic acid derivative of hydroxamic acid or a pharmacologically acceptable salt thereof, which is useful as an inhibitor of lipopolysaccharides (LPS). In addition, the present invention relates to a novel intermediate compound useful for the synthesis of this sulfonic acid derivative of hydroxamic acid.
Charging member, process cartridge, and electrophotographic image forming apparatus
申请人:CANON KABUSHIKI KAISHA
公开号:US10036971B2
公开(公告)日:2018-07-31
Provided is a charging member that suppresses the occurrence of abnormal discharge under low temperature and low humidity. The charging member includes a support and a surface layer on the support, and the surface layer contains a compound represented by the following formula (a), (b), (c), or (d).
Non-toxic corrosion-protection pigments based on manganese
申请人:——
公开号:US20040011252A1
公开(公告)日:2004-01-22
Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Non-toxic corrosion-protection pigments based on rare earth elements
申请人:——
公开号:US20040104377A1
公开(公告)日:2004-06-03
A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.