CAS: 7789-06-2; Strontium Chromate

专利信息

专利号:US-6538094-B2
优先权日:1998-12-21
标题:Process for synthesis of allophanate compounds and compositions including the product thereof
发明人：TAZZIA CHARLES L
权利人:BASF CORP
摘要:The invention provides a process for preparing an allophanate-containing compound in the presence of a metal catalyst and a tertiary amine. In a preferred process, the tertiary amine compound also has a hydroxyl group. The hydroxyl group can react with the isocyanate functionality. Also disclosed is a process in which an allophanate-containing compound is prepared with copper acetate monohydrate as a catalyst. The allophanate-containing compound is used as a curing agent in coating compositions, particularly electrocoat coating compositions. The coating compositions are used to coat articles.

专利号:WO-9723519-A1
优先权日:1995-12-21
标题:Synthesis of aqueous, anionic, amino acrylate polymers
发明人：DAS SURYYA K; KILIC SONER
权利人:PPG INDUSTRIES INC
摘要:Disclosed is a method of making aqueous, anionic amino polymers in water from olefinically unsaturated monomers including amine-containing monomers, but substantially without the inclusion of acid-group containing monomers. The polymerization of the amino polymer is carried out in the presence of a carboxy functional azo initiator dissolved in water by neutralization of acid groups present on the initiator. The polymer is useful in single-package or two-package coating compositions having pH above 7.0 that may be cured with polyisocyanates or polyepoxides.

专利号:US-7351781-B2
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization
发明人：WHITE DANIELA; O'DWYER JAMES B
权利人:PPG IND OHIO INC
摘要:A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula:n nφ-[-A p -B s -] t -φn nwhere A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and φ is a residue from the iniferter.

专利号:US-2002176927-A1
优先权日:2001-03-29
标 题:Combinatorial synthesis of material systems
发明人：KODAS TOIVO T; HAMPDEN-SMITH MARK J
摘要:Methods for formulating material systems of varying chemistry and stoichiometry. The material systems include two or more components and can be analyzed to select the system having the best properties for a particular application. Specific examples of materials systems that can be fabricated and analyzed according to the present invention include layers for membrane electrode assemblies (MEA's) that are useful in the construction of fuel cells and similar devices.

专利号:US-RE45612-E
优先权日:2001-05-04
标 题 :Corrosion inhibitor composition applicable for aluminum and steel protection and procedure
发明人：SINKO JOHN
权利人:SINKO JOHN; MD FIFTH WARD PROPERTIES INC
摘要:A corrosion-inhibiting composition for application to a metal substrate, such as aluminum or steel, and in connection with a paint, and the synthesis of the composition. The active inhibitor constituent of the composition can be selected from the group consisting of 2,5-dimercapto-1,3,4 thiadiazole (DMTD), 2,4-dimercapto-s-triazolo-[4,3-b]-1,3-4-thiadiazole, trithiocyanuric acid (TMT), and derivatives of DMTD and TMT, including various N— or S— and N, N—, S— and N—,S-substituted derivatives of DMTD, including salts of DMTD of the general formula: M(DMTD) n , where n=1,2 or 3, and M is a metal cation and preferably M=Zn(II), Bi(III), Co(II), Ni(II), Cd(II), Pb(II), Ag(I), Sb(III), Cu(II), Li(I), Ca(II), Sr(II), Mg(II), La(III), Ce(III), Pr(III), Al(III) or Zr(IV). DMTD, TMT, and their derivatives may also be combined with phosphates, molybdates, borates, silicates, tungstates, phosphotungstates, phosphomolybdates, cyanamides, carbonates, SiO 2 and mixtures thereof.

专利号:US-2003018151-A1
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization