Patents Represented by Attorney Cortlan R. Schupbach, Jr.
  • Patent number: 4548707
    Abstract: This invention relates to secondary or tertiary recovery processes for the recovery of oil from subterranean oil-bearing reservoirs. More particularly, this invention relates to an improved method for the recovery of petroleum from underground reservoirs, which petroleum contains sulfonate surfactants and water and for a method of removing said sulfonate surfactants and water from petroleum produced from said recovery processes.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: October 22, 1985
    Assignee: Conoco Inc.
    Inventors: Nicholas O. Wolf, Kang Yang
  • Patent number: 4440869
    Abstract: High activity catalysts for the polymerization of ethylene and other .alpha.-olefins are made by contacting a soluble magnesium compound of the general formula Mg(OSiR.sub.3).sub.2, wherein each R is, independently, alkyl, alkoxy or aryl, with a titanium tetralkoxide (titanate) in a saturated aliphatic hydrocarbon solution, followed by chlorination and precipitation by a suitable chlorinating agent. These catalysts show high activity for the polymerization of ethylene under slurry polymerization conditions.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 3, 1984
    Assignee: Conoco Inc.
    Inventors: Mark L. Shannon, Mark P. Mack
  • Patent number: 4435606
    Abstract: Internal olefins are subjected to metathesis closely coupled after an isomerization reaction to obtain desired molecular weight range linear olefins. Specific process steps and separation conditions are necessary to obtain the desired linear olefins.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: March 6, 1984
    Assignee: Conoco Inc.
    Inventors: Kaye L. Motz, Paul H. Washecheck, Ronald L. Poe, James E. Yates
  • Patent number: 4435295
    Abstract: An improved sulfonate suitable for waterflooding is formed by sulfonating a blend of two alkyl aromatic feedstocks, one being a high molecular weight monoalkylbenzene while the second is a mixture of normal alkyl aromatic compounds such as monoalkyl benzenes, dialkylbenzenes, and diphenyl alkanes. This feedstock is either sulfonated after blending or before blending to provide a blended non-sulfonate/sulfonate ratio in the range of 0.10 to 0.25. The sulfonate effectiveness of this system increases as the non-sulfonate/sulfonate ratio increases.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: March 6, 1984
    Assignee: Conoco Inc.
    Inventors: Olaf M. Stokke, Roy C. Sias
  • Patent number: 4433123
    Abstract: A method is provided for the production of ultrahigh molecular weight drag reducing substances and the like comprising:(a) preparing under an inert atmosphere a catalyst comprising: p1 (1) titanium halide of the general formula TiX.sub.m wherein m=2.5 to 4.0;(2) a co-catalyst of the formula AlR.sub.n X.sub.3-n where R is a hydrocarbon radical, X is a halogen or hydrogen and n is 2 or 3;(3) a phosphorous compound of the formula PR.sub.1 R.sub.2 R.sub.3 or P(OR.sub.1) (OR.sub.2) (OR.sub.3) where R.sub.1, R.sub.2, and R.sub.3 are, independently, aryl, alkyl, aralkyl, or alkaryl, containing from 1 to 12 carbon atoms and placing the catalyst in contact with;(b) alpha-monoolefinic hydrocarbons from C.sub.2 -C.sub.30 under suitable temperature conditions to provide a hydrocarbon soluble ultrahigh molecular weight polymer, then ceasing polymerization at a polymer content level of 20% by weight or less, based on the total reaction mixture.
    Type: Grant
    Filed: May 12, 1981
    Date of Patent: February 21, 1984
    Assignee: Conoco Inc.
    Inventor: Mark P. Mack
  • Patent number: 4424308
    Abstract: A process for preparing aromatic-moiety-containing polymers having modified physical properties is disclosed. Briefly, the process comprises reacting in the presence of a Friedel-Crafts catalyst: (a) a suitable aromatic-moiety containing polymer resin and (b) a homopolymer of .omega.-halo-.alpha.-olefins, or co- or terpolymer of .omega.-halo-.alpha.-olefins with other .alpha.-olefins and/or ethylene.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: January 3, 1984
    Assignee: Conoco Inc.
    Inventor: Mark L. Shannon
  • Patent number: 4423238
    Abstract: A method of purifying trioxane and other acetals by contacting them with an alkali metal and a phase transfer catalyst is described. Trioxane so purified is capable of being polymerized to high molecular weight.
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: December 27, 1983
    Assignee: Conoco Inc.
    Inventor: Jeff T. Fenton
  • Patent number: 4418005
    Abstract: A titanium oxide/magnesium sulfate/magnesium oxide catalyst which is an ortho-selective methylation catalyst can be made to exhibit higher conversion and activity index for phenol methylation by the application of pressure. The pressure can be applied throughout the methylation period or can be applied for a short time at the beginning of the methylation period and then ceased, while higher activity continues. The pressure activation effects are assisted by the presence of phenol, methanol and/or water.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: November 29, 1983
    Assignee: Conoco Inc.
    Inventors: John R. Dodd, Daniel H. Ralston
  • Patent number: 4415714
    Abstract: A method is provided for the production of ultrahigh molecular weight drag reducing substances and the like comprising:(a) preparing under an inert atmosphere a catalyst comprising:(1) titanium halide of the general formula TiXm wherein m=2.5 to 4.0 and X is a halogen;(2) a co-catalyst such as an organo-aluminum or organo-aluminum halide of the formula AlR.sub.n X.sub.3-n where R is a hydrocarbon radical containing from 1 to 20 carbon atoms, X is a halogen and n is 2 or 3;(3) a monoether compound of the formula R.sub.1 OR.sub.2 where R.sub.1, and R.sub.2 are, independently, aryl, alkyl, cycloalkyl, aralkyl, or alkaryl, each having up to 20 carbon atoms, and placing the catalyst in contact with;(b) alpha-monoolefinic hydrocarbons having from 2 to 30 carbon atoms under suitable temperature conditions to provide an ultrahigh molecular weight hydrocarbon soluble polymer, then(c) ceasing polymerization at a polymer content of 20% by weight or less, based on the total reaction mixture.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: November 15, 1983
    Assignee: Conoco Inc.
    Inventor: Mark P. Mack
  • Patent number: 4414136
    Abstract: Highly active, improved ethylene oxychlorination catalysts are prepared by forming alumina having specific pore volume characteristics and impregnating such alumina with an oxychlorination catalyst such as CuCl.sub.2. The improved catalysts of the present invention utilize an alumina carrier having a pore volume distribution such that substantially no pores are present which have diameters of less than 150 .ANG.ngstroms and the total alumina carrier has a surface area of at least 30 square meters per gram.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: November 8, 1983
    Assignee: Conoco Inc.
    Inventor: Ronald J. Convers
  • Patent number: 4412065
    Abstract: The present invention describes novel hydrocarbon-insoluble poly-silyl esters and a method for forming these compounds utilizing carboxylic acid salts with silicon reagents in the presence of phase transfer catalysts.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: October 25, 1983
    Assignee: Conoco Inc.
    Inventors: Charles T. Berge, Mark P. Mack
  • Patent number: 4405819
    Abstract: An improved process is provided for the production of alcohols from carboxylic acids using the reaction of carboxylic acids with alcohols in the presence of hydrogen and carbon monoxide to form esters which are subsequently hydrogenated over a suitable hydrogenation catalyst. The invention is useful because the temperature and pressure conditions are reduced from current commercial processes while hydrogenation catalyst activity and lifetime are promoted by the removal of catalyst poisons such as water.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: September 20, 1983
    Assignee: Conoco Inc.
    Inventor: Louis R. Duckwall, Jr.
  • Patent number: 4397764
    Abstract: A polymer-supported ethylene polymerization catalyst prepared by a method comprising (a) a polymer supported titanium-based catalyst consisting of(1) a polymer resin containing an amino borane reducing agent;(2) a titanium tetrahalide;(3) and a suitable organometallic and/or organic metallic co-catalyst.The polymers produced are resins of high density and melting point.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: August 9, 1983
    Assignee: Conoco Inc.
    Inventor: Mark L. Shannon
  • Patent number: 4380610
    Abstract: This invention relates to "comb" polymers having high molecular weight and related structurally to polyoxymethylene, but having improved thermal stability. In addition, this invention relates to a method for preparing these high molecular weight "comb" polymers and teaches a process which exhibits reduced reactor fouling and produces a free-flowing powder. Generally the improved polymer is made by copolymerizing trioxane with polyanhydride or copolymerizing trioxane with copolymers of olefins and anhydrides. The improved polymer can optionally be reacted with agents known to react with terminal hydroxy groups to end-cap the polymer.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: April 19, 1983
    Assignee: Conoco Inc.
    Inventors: Jeff T. Fenton, Mark P. Mack
  • Patent number: 4379766
    Abstract: Silyl esters of carboxylic acids, of the general formula ##STR1## are formed under mild conditions in the presence of a phase transfer catalyst when a silicon halide is contacted with a carboxylic acid salt wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each a hydrogen atom or a hydrocarbon radical. Suitable phase transfer catalysts include quaternary ammonium salts, cryptates and crown ethers.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: April 12, 1983
    Assignee: Conoco Inc.
    Inventors: Mark P. Mack, Charles T. Berge
  • Patent number: 4376868
    Abstract: Cresylic acid ethoxylation is catalyzed by basic compounds and salts of alkaline earth metals. Ethoxylates from such reactions have narrow ethylene oxide distributions, lower pour points and lower by-products as compared to alkali base catalyzed ethoxylation. Suitable catalysts include strontium-containing and barium-containing materials. The catalyst also includes co-catalyst combinations using these materials with one or more promoters including polyols, amines, amides, carboxylic acids and phenols. The co-catalyst combinations can be preformed prior to introduction into the reaction mixture.
    Type: Grant
    Filed: February 14, 1980
    Date of Patent: March 15, 1983
    Assignee: Conoco Inc.
    Inventors: Gerald L. Nield, Kang Yang, Paul H. Washecheck
  • Patent number: 4375360
    Abstract: Methanol fuels are modified by the addition of materials which provide required lubricity and protection for engine parts while retaining compatability with the methanol fuel. Methanol fuel is methanol itself or any fuel containing a majority of methanol by volume. In addition, these additives help lubricate cylinder walls and decrease wear and corrosion.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: March 1, 1983
    Assignee: Conoco Inc.
    Inventors: Paul H. Washecheck, Andrew T. C. Liu, E. Flynt Kennedy
  • Patent number: 4374755
    Abstract: Novel magnesium disiloxide compounds and methods for their preparation are disclosed. The magnesium disiloxides so obtained are useful starting materials for the preparation of active catalysts for olefin polymerizations.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: February 22, 1983
    Assignee: Conoco Inc.
    Inventors: Charles T. Berge, Mark P. Mack, Charles M. Starks
  • Patent number: 4371455
    Abstract: A method for the preparation of supported Ziegler-Natta catalysts comprising the reduction of a transition metal compound with a magnesium containing reducing agent. The reducing agent is prepared in the presence of a magnesium chloride support utilizing an anhydrous and oxygen-free mixture of magnesium halide and magnesium metal, slurried in a hydrocarbon solvent. A halogenated hydrocarbon is added to activate the magnesium-containing reducing agent. Thereafter the transition metal compound is mixed with the slurry. The resulting solid is washed with a hydrocarbon solvent to eliminate residual transition metal compounds. The resulting washed solid is an active supported Ziegler-Natta olefin polymerization catalyst.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: February 1, 1983
    Assignee: Conoco, Inc.
    Inventors: Mark P. Mack, Charles T. Berge
  • Patent number: 4360449
    Abstract: A method is provided for forming stable dispersions of boehmite alumina in water containing a peptizing acid by mixing said alumina with dilute aqueous acid solutions and treating the alumina prior to dispersion by heating at temperatures of from about 250.degree. F. to 700.degree. F. and pressures of from about 10 psig to about 2000 psig in the presence of up to 80 weight percent of water based upon the total alumina for a period of time sufficient to stabilize the alumina to the extent necessary. Dispersions can be prepared which will remain fluid up to days longer than will those prepared from the untreated alumina.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: November 23, 1982
    Assignee: Conoco Inc.
    Inventors: Richard K. Oberlander, Lewis B. Decker, Jr.