CAS: 7783-62-2; Tin(Iv) Fluoride,0.99

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CAS号7440-31-5 锡粉 | CAS号7782-41-4 氟 | CAS号7664-39-3 氟化氢 | CAS号7646-78-8 四氯化锡 | CAS号109-63-7 三氟化硼乙醚 | CAS号353-42-4 三氟化硼-二甲醚络合物 | CAS号7790-91-2 三氟化氯 | CAS号7787-71-5 三氟化溴 | CAS号1066-77-9 四(二甲基氨基)锡 (IV) | CAS号455-32-3 苯甲酰氟 | CAS号7646-78-8 四氯化锡 | CAS号7647-19-0 五氟化磷 | CAS号13465-71-9 trifluorosilane | CAS号7440-31-5 锡粉 | CAS号7783-60-0 四氟化硫 | CAS号7783-55-3 三氟化磷

专利信息

专利号:US-6515087-B2
优先权日:2000-12-14
标题:Synthesis of elastomers having low hysteresis
发明人：HSU WEN-LIANG; HALASA ADEL FARHAN; CHRISTIAN SCOTT MCDOWELL; KERNS MICHAEL LESTER
权利人:GOODYEAR TIRE & RUBBER
摘要:It is important for rubbery polymers that are used in tires, hoses, power transmission belts and other industrial products to have good compatibility with fillers, such as carbon black, silica, clay (including organoclays), and mixtures thereof. To attain improved interaction with fillers such rubbery polymers can be functionalized with various compounds, such as amines. The present invention discloses a process for synthesizing a rubbery polymer that is functionalized to attain improved compatibility with fillers. The present invention more specifically disclosed a process for synthesizing a rubbery polymer that comprises (1) continuously charging (a) a conjugated diolefin monomer, (b) an organolithium compound, and (c) an amine compound into a polymerization zone, wherein the amine compound is selected from the group consisting of alkyl, dialkyl, cycloalkyl or dicycloalkyl amine compounds of the general formula:wherein R represents an alkyl group, a cycloalkyl group, or an alkaryl group containing from 1 to about 12 carbon atoms, and cyclic amine compounds of the general formula:wherein R2 represents a divalent alkylene, bicycloalkane, substituted alkylene, oxy- or N-alkylamino-alkylene group containing from about 3 to about 16 methylene groups; (2) allowing the conjugated diolefin monomer to polymerize in the polymerization zone to produce the rubbery polymer; and (3) continuously withdrawing the rubbery polymer from the polymerization zone.

专利号:US-6812307-B2
优先权日:2002-08-16
标 题:Functionalized monomers for synthesis of rubbery polymers
发明人：HALASA ADEL FARHAN; HSU WEN-LIANG
权利人:GOODYEAR TIRE & RUBBER
摘要:This invention is based upon the unexpected finding that random copolymers of 1,3-butadiene monomer and 3-(2-pyrrolidinoethyl) styrene and/or 4-(2-pyrrolidinoethyl) styrene having a low vinyl content can be synthesized by anionic polymerization at normal polymerization temperatures without the need for a conventional polar modifier. The subject invention more specifically discloses a process for synthesizing a rubbery polymer that comprises copolymerizing at least one conjugated diolefin monomer and at least one functionalized monomer in an organic solvent at a temperature which is within the range of 20° C. to about 100° C., wherein the polymerization is initiated with an anionic initiator, wherein the functionalized monomer is of the structural formula:wherein n represents an integer from 4 to about 10, and wherein the polymerization is conducted in the absence of conventional polar modifiers.

专利号:US-4828849-A
优先权日:1988-01-14
标题 :Surfactant inhibition of dental plaque
发明人：LYNCH DONALD M; APPELBAUM BENJAMIN
权利人:WARNER LAMBERT CO
摘要:The invention provides an oral preparation or composition such as a mouthwash, mouthrinse, toothpaste and the like containing certain classes of surfactants which act to inhibit plaque formation by inhibiting the initial adherence of bacteria to the dentin surfaces and in the case of one class of surfactants additionally inhibiting the glucosyl transferase catalysis to prevent the synthesis of extracellular polysaccharides from sucrose. n The surfactants comprise substituted taurines, substituted isethionates and substituted hydroxy sultaines in which the substituents are long chain hydrocarbon radicals. The surfactants are employed in the aqueous-based oral compositions at concentrations between about 0.00001M to 0.1M to effect inhibition.

专利号:US-4870217-A
优先权日:1988-10-24
标 题:Method for production of phenol/acetone from cumene hydroperoxide
发明人：KNIFTON JOHN F
权利人:TEXACO CHEMICAL
摘要:A method is disclosed for the synthesis of phenol and acetone by acid-catalyzed decomposition over a catalyst comprising an acidic smectite clay, particularly an acidic montmorillonite silica-alumina clay. The method allows for quantitative conversions with yields of up to 98% mole or better. Further the method is capable of operating efficiently at high LHSVs.

专利号:US-4898995-A
优先权日:1988-10-24
标 题 :Method for production of phenol/acetone from cumene hydroperoxide
发明人：KNIFTON JOHN F; SANDERSON JOHN R
权利人:TEXACO CHEMICAL
摘要:A method is disclosed for the synthesis of phenol and acetone by decomposition over a heterogeneous catalyst from the group consisting of a heteropoly acid on an inert support or an ion exchange resin with a sulfonic acid functionality. The method allows for quantitative conversions with yields of up to >99 mole % or better.

专利号:US-4876397-A
优先权日:1988-10-24
标题 :Method for production of phenol/acetone from cumene hydroperoxide
发明人：KNIFTON JOHN F; GRICE NEAL J
权利人:TEXACO CHEMICAL
摘要:A method is disclosed for the synthesis of phenol and acetone by decomposition over a heterogeneous catalyst comprising a fluorine-containing acidic compound on an inert support. The method allows for quantitative conversions with yields of up to >99 mole %.