CAS: 831-59-4; 1,3-Benzenedisulfonic Acid Disodium Salt

相似化合物

26158-00-9 19402-64-3 7134-41-0

专利信息

专利号:US-4235813-A
优先权日:1977-01-11
标 题:Aromatic sulfonamide sulfonyl chloride compounds
发明人：SAWAGUCHI HIROSHI; UEDA HIDEO
权利人:FUJI PHOTO FILM CO LTD
摘要:An aromatic sulfonamide sulfonyl chloride, useful as an intermediate in the preparation of cyan dye-releasing redox compounds for diffusion transfer photographic materials, represented by the following general formula (I) (I) wherein A represents a divalent benzene nucleus or a divalent naphthalene nucleus, in which in each nucleus the bonding thereto is symmetrical, and a method for the synthesis thereof comprising reacting an aromatic disulfonyl chloride represented by the formula (IIa) or (IIb) (IIa) (IIb) wherein the two sulfonyl chloride groups are substituted at symmetrical positions on the benzene and the naphthylene ring, with 5-amino-1-naphthol.

专利号:EP-1935948-B1
优先权日:2006-12-20
标 题 :Surface treatment method for nanoparticles
发明人：HAASE MARKUS
权利人:CT FUER ANGEWANDTE NANOTECHNOLOGIE CAN GMBH
摘要:A dispersibility improving surface treatment method for nanoparticles (I) (after synthesis, isolation and optionally washing) involves treatment with (a) nitrogen-containing organic base(s) and polybasic acid(s), (b) a salt of nitrogen-containing organic base(s) with polybasic acid(s) or (c) a betaine with nitrogen-containing organic basic group(s) and polybasic acid group(s). Independent claims are included for: (1) the surface treated nanoparticles obtained by the process; and (2) nanoparticle dispersions comprising the treated nanoparticles and a solvent.