其它别名Lead acetate, basic; bis(acetato)tetrahydroxytri-lea; basic lead acetate; bis(acetato)dihydroxytrilead; bis(acetato)tetrahydroxytrilead; bis(aceto)dihydroxytrilead; lead monosubacetate; lead subacetate
专利号:US-6797785-B1 优先权日:1999-03-29 标 题:Methods for synthesizing polyvinyl amine (PVA) type flocculating and coagulating agents, novel agents thus obtained, uses thereof and improved paper types thus obtained 发明人:HUND RENE; JEHN-RENDU CHRISTIAN 权利人:SNF SA 摘要:The invention relates to a process of synthesis at low temperature of polymers of the PVA (polyvinylamine) type on the basis the monomer vinylformamide. The polymerization claimed for the invention begins at around 0° C., is initiated by an original combination of redox and azoic catalysts, and is conducted under more or less normal pressure. The polymerization is conducted in water and is followed by direct hydrolysis. A powdered cationic PVA of high molecular weight is thereby obtained. The process may also be conducted in an emulsion at an initiation temperature of around 15° C. Application of PVAs as flocculants and coagulants in the paper, water treatment, petroleum and parapetroleum, and, similar industries.
专利号:CN-100411993-C 优先权日:2006-03-10 标 题 :A kind of pearlescent pigment crystal synthesis process
专利号:CN-1837056-A 优先权日:2006-03-10 标题:A kind of pearlescent pigment crystal synthesis process
摘要:Poirier LA et al; Cancer Res 44 (4): 1520-2 (1984). 摘要:Seiler, H.G., H. Sigel and A. Sigel (eds.). Handbook on the Toxicity of Inorganic Compounds. New York, NY: Marcel Dekker, Inc. 1988., p. 843 摘要:USEPA/Office of Water; Federal-State Toxicology and Risk Analysis Committee (FSTRAC). Summary of State and Federal Drinking Water Standards and Guidelines (11/93) To Present 摘要:Hill, E.F. and Camardese, M.B. Lethal Dietary Toxicities of Environmental Contaminants and Pesticides to Coturnix. Fish and Wildlife Technical Report 2. Washington, DC: United States Department of Interior Fish and Wildlife Service, 1986., p. 87 摘要:Kasprzak KS et al; Carcinogenesis 6 (2): 279-82 (1985).