Patents by Inventor Sunny C. Tang
Sunny C. Tang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4384146Abstract: 1,4- and 1,2-butanediols are selectively produced by reacting 1,3-butadiene with tert-butyl hydroperoxide in the presence of a cobalt on silica catalyst, followed by catalytic hydrogenation of the di(tert-butylperoxy)butenes obtained thereby.Type: GrantFiled: December 14, 1979Date of Patent: May 17, 1983Assignee: Shell Oil CompanyInventor: Sunny C. Tang
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Patent number: 4317936Abstract: The hydroformylation of olefinic hydrocarbons is effected by treating the hydrocarbon with hydrogen and carbon monoxide in the presence of a catalyst comprising an ion exchange resin, a metal selected from the group consisting of cobalt, ruthenium, palladium, platinium, and rhodium bound to said resin and an organic linking compound which has at least one moiety which is ionically bonded to said resin and which further has at least one moiety which is coordinately bonded to said metal.Type: GrantFiled: August 13, 1979Date of Patent: March 2, 1982Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4306085Abstract: The hydroformylation of olefinic hydrocarbons is effected by treating the hydrocarbon with hydrogen and carbon monoxide in the presence of a catalyst comprising an ion exchange resin and an organic linking compound having at least one resin-compatible moiety ionically bonded to said resin and further having at least one metal complexible moiety selected from the group consisting of cobalt, ruthenium, palladium, platinum and rhodium.Type: GrantFiled: August 13, 1979Date of Patent: December 15, 1981Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4284835Abstract: A process for the hydrogenation of unsaturated hydrocarbons comprising contacting said unsaturated hydrocarbons, with hydrogen, at temperatures ranging from about 40.degree. C. to about 160.degree. C., and pressures ranging from about 100 psi to about 3000 psi, with a catalyst comprising an ion exchange resin and an organic linking compound having at least one resin compatible moiety ionically bound to said resin and further having at least one metal complexible moiety selected from the group consisting of trivalent nitrogen, trivalent phosporous, trivalent arsenic, trivalent bismuth and trivalent antimony complexed to a metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum.Type: GrantFiled: February 25, 1980Date of Patent: August 18, 1981Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4266085Abstract: The disproportionation of olefins is effected by contacting the olefin with an activator and a catalyst comprising an ion exchange resin and an organic linking compound having at least one resin-compatible moiety ionically bonded to said resin and further having at least one metal complexible moiety selected from the group consisting of trivalent nitrogen, trivalent phosphorus, trivalent arsenic, trivalent bismuth and trivalent antimony complexed to a metal selected from the group consisting of molybdenum, tungsten and rhenium.Type: GrantFiled: May 9, 1980Date of Patent: May 5, 1981Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4198352Abstract: Internal olefins are hydroformylated to linear aldehydes in substantial amounts by contacting the internal olefins with hydrogen, carbon monoxide and a catalyst comprising a ligand stabilized ionic platinum compound of the general formula PtCl(CO)(Ligand).sub. 2.sup.+ An.sup.- complexed with a modifying metal halide selected from tin, zinc, or germanium halides.Type: GrantFiled: November 29, 1978Date of Patent: April 15, 1980Assignee: Shell Oil CompanyInventors: Leo Kim, Sunny C. Tang
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Patent number: 4179403Abstract: A composition comprising an ion exchange resin and an organic linking compound having at least one resin-compatible moiety ionically bound to said resin and further having at least one metal complexible moiety selected from the group consisting of trivalent nitrogen, trivalent phosphorus, trivalent arsenic, trivalent bismuth and trivalent antimony complexed to a metal selected from Group IVB, VB, VIB, VIIB, VIII and IB metals, said composition being useful in heterogeneous catalysis.Type: GrantFiled: December 19, 1977Date of Patent: December 18, 1979Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4179402Abstract: A composition comprising an ion exchange resin, a metal selected from the transition group of elements bound to said resin and an organic linking compound which has at least one moiety which is ionically bonded to said resin and which further has at least one moiety which is coordinately bonded to said metal.Type: GrantFiled: May 15, 1978Date of Patent: December 18, 1979Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: 4127594Abstract: Beta-chloroacrolein and 5,6-epoxyhexene-1 impurities present in minor amounts in epichlorohydrin are selectively removed with minimal concomitant destruction of epichlorohydrin by hydrogenation in the presence of a catalyst comprising rhodium, platinum or palladium deposited on a non-acidic, refractory support.Type: GrantFiled: February 21, 1978Date of Patent: November 28, 1978Assignee: Shell Oil CompanyInventors: Elmer A. Anderson, Leo Kim, Sunny C. Tang
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Patent number: 4127593Abstract: 2,3-Butanedione impurity is removed from epichlorohydrin by contacting the impurity containing epichlorohydrin with a macroreticular poly(t-butyl acrylate) resin having a pore volume of about 0.5 ml/ml, an average pore diameter of about 90 angstroms and a surface area of about 450 m.sup.2 /gm.Type: GrantFiled: January 30, 1978Date of Patent: November 28, 1978Assignee: Shell Oil CompanyInventors: Leo Kim, Sunny C. Tang
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Patent number: 4065505Abstract: Meta-phenoxytoluene is oxidized by selenium dioxide in the presence of a dehydration agent to yield meta-phenoxy-benzaldehyde containing less than 250 ppm dissolved selenium at a selectivity based on the toluene of about 90% or better.Type: GrantFiled: November 5, 1976Date of Patent: December 27, 1977Assignee: Shell Oil CompanyInventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
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Patent number: RE30818Abstract: 2,3-Butanedione impurity is removed from epichlorohydrin by contacting the impurity containing epichlorohydrin with .[.a macroreticular poly(t-butyl acrylate) resin .]. .Iadd.an acrylic ester resin .Iaddend.having a pore volume of about .[.0.5 .]. .Iadd.0.55 .Iaddend.ml/ml, an average pore diameter of about 90 angstroms and a surface area of about 450 m.sup.2 /gm.Type: GrantFiled: May 22, 1980Date of Patent: December 8, 1981Assignee: Shell Oil CompanyInventors: Leo Kim, Sunny C. Tang