Patents Assigned to Petrolite Corporation
  • Patent number: 4678638
    Abstract: This invention relates to amino hexahydropyridines, and to the preparation and use thereof as corrosion inhibitors.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: July 7, 1987
    Assignee: Petrolite Corporation
    Inventors: Benjamin T. Outlaw, Bernardus A. Oude Alink
  • Patent number: 4671815
    Abstract: This invention relates to salts of oxyalkylated amino compounds which render normally water insoluble components such as biocides, soluble in water and thereby improving their usefulness and effectiveness. These amino compounds render biocides such as methylene bis(thiocyanate) (MBT) and/or bis(trichloromethyl) sulfone (BTMS) water soluble. The soluble forms of these biocides afford more predictable, consistent and effective biocidal results when applied to systems contaminated with microorganisms such as bacteria, fungi, algae, molds, and certain yeasts and thus offer considerable advantages over insoluble, dispersible, emulsified forms of these biocides.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: June 9, 1987
    Assignee: Petrolite Corporation
    Inventors: Thomas J. Bellos, Derek Redmore
  • Patent number: 4670186
    Abstract: There is described a composition comprising an acylated, alkylated polyamine, an alkylated polyamine, an alkynol and a surfactant. The compositions are useful as corrosion inhibitors for acid systems and ferrous pickling systems and in acidizing media in the treatment of oil-bearing earth formations.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: June 2, 1987
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Patent number: 4667150
    Abstract: A system, method and probe for monitoring the corrosion rate of different metals in identical corrosive fluids and under identical conditions, such metals being employed as electrodes other than reference electrodes in a probe having also a reference electrode. The preferred probe comprises a probe body holding at least four electrodes, where one is placed in the center and the others around it in a circle. The center electrode is preferably used as a permanent reference electrode. Each electrode on the circle can then be connected in turn to a channel on a multistation PAIR meter as test and auxiliary electrodes, whereby the corrosion rate on each of them can be monitored in turn. This arrangement greatly enhances the utility of the multistation PAIR meter and with only two entry ports in a system, all channels can serve to answer specific questions on specific electrodes or metals. The novel probe can also be used with a one channel PAIR meter employed with a multi-station manual switch.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: May 19, 1987
    Assignee: Petrolite Corporation
    Inventors: Rudolph H. Hausler, Allen L. Savage, Jack B. Harrell, Jr.
  • Patent number: 4665180
    Abstract: This invention relates to certain substituted tetrahydropyrimidines and derivatives thereof, including the preparation and uses thereof.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: May 12, 1987
    Assignee: Petrolite Corporation
    Inventor: Bernardus A. Oude Alink
  • Patent number: 4659334
    Abstract: The invention pertains to particulate compositions comprising a mixture of a low melting point petroleum additive and a higher melting point polymer which mixture is then coated with a high melting point polymer. The mixture of the additive and higher melting point polymer has a melting point close to the melting point of the polymer (i.e., significantly higher than the melting point of the additive). The high melting point polymer coating allows the composition to be added to petroleum systems having high temperatures without immediately dissolving, i.e., the compositions are only slowly soluble in hot crude oil. Accordingly, a slow, controlled release is afforded by the compositions of the invention.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: April 21, 1987
    Assignee: Petrolite Corporation
    Inventor: William J. Matlach
  • Patent number: 4659339
    Abstract: This invention relates to the inhibition of corrosion resulting from the presence of vanadium and sodium in fuels, for example, in residual fuels, such as in those fuels used in steam boilers, process heaters and gas turbines, etc., by adding Mg/Al/Si combinations thereto. Mg/Al/Si combinations are more effective than other inhibitors at a high Na/V ratio.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: April 21, 1987
    Assignee: Petrolite Corporation
    Inventors: Walter R. May, Michael J. Zetlmeisl
  • Patent number: 4633019
    Abstract: This invention relates to .alpha.-aminoalkylsulfur compositions and to the preparation and uses thereof, particularly as corrosion inhibitors. These compositions contain a moiety of the general formula ##STR1## in a linear or cyclic configuration.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: December 30, 1986
    Assignee: Petrolite Corporation
    Inventors: Neil E. S. Thompson, Derek Redmore, Bernardus A. O. Alink
  • Patent number: 4631138
    Abstract: Triazones and triazine thiones are disclosed as corrosion inhibitors for ferrous metals.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: December 23, 1986
    Assignee: Petrolite Corporation
    Inventors: Marshall E. Johns, Keith D. Strassner, Thomas G. Braga
  • Patent number: 4626379
    Abstract: Novel demulsifier compositions, their method of preparation and use as demulsifiers are described. The novel demulsifiers comprise the partially condensed reaction product of a blend of at least two oxyalkylated materials with a vinyl monomer. The demulsifiers are useful in the resolution of water-in-oil emulsions.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: December 2, 1986
    Assignee: Petrolite Corporation
    Inventors: Rudolf S. Buriks, James G. Dolan
  • Patent number: 4622404
    Abstract: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: November 11, 1986
    Assignee: Petrolite Corporation
    Inventors: Neil E. S. Thompson, Derek Redmore, Bernardus A. Oude Alink, Benjamin T. Outlaw
  • Patent number: 4617025
    Abstract: This invention relates to polyalkylenes which contain both halogen and ester groups, to the preparation thereof, and to the use thereof as pour depressants for fuel oils. This invention also relates to polyalkylene esters.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: October 14, 1986
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Patent number: 4616085
    Abstract: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.
    Type: Grant
    Filed: November 24, 1982
    Date of Patent: October 7, 1986
    Assignee: Petrolite Corporation
    Inventors: Neil E. S. Thompson, Derek Redmore, Bernardus A. Oude Alink, Benjamin T. Outlaw
  • Patent number: 4609010
    Abstract: A fluid inlet distributor for a fluid treating vessel, comprising a chamber, preferably horizontally elongated, provided with at least one horizontal row of orifices along one longitudinal side, fluid inlet means, and at least one conduit, open at its bottom end, communicating with the chamber and extending downwardly therefrom. The chamber is otherwise closed. The distributor is useful for uniform feeding of an incoming fluid for horizontal flow in a fluid treating vessel.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: September 2, 1986
    Assignee: Petrolite Corporation
    Inventor: Frederick D. Watson
  • Patent number: 4595523
    Abstract: There is provided a corrosion inhibitor for use in the storage, distribution and use of alcohol as a fuel for internal combustion engines. The inhibitor comprises a triazole and an amine salt of an acid. There is further provided a corrosion-inhibited alcohol fuel and a method of inhibiting corrosion in metals.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: June 17, 1986
    Assignee: Petrolite Corporation
    Inventors: J. Irvine Knepper, Robert J. Garrecht, George W. Dear
  • Patent number: 4588640
    Abstract: The invention pertains to particulate compositions comprising a mixture of a low melting point petroleum additive and a higher melting point polymer which mixture is then coated with a high melting point polymer. The mixture of the additive and higher melting point polymer has a melting point close to the melting point of the polymer (i.e., significantly higher than the melting point of the additive). The high melting point polymer coating allows the composition to be added to petroleum systems having high temperatures without immediately dissolving, i.e., the compositions are only slowly soluble in hot crude oil. Accordingly, a slow, controlled release is afforded by the compositions of the invention.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: May 13, 1986
    Assignee: Petrolite Corporation
    Inventor: William J. Matlach
  • Patent number: 4582628
    Abstract: This invention relates to vinyl-type interpolymers having an overall carbon/oxygen atom ratio of about 2 to about 4, which is preferably derived from 2 types of vinyl monomers:(1) at least one vinyl-type monomer present in the interpolymer at about 50 mole % or greater and having a carbon/oxygen atom ratio of about 3 or less ("hydrophilic" monomer), and(2) at least one vinyl-type monomer present in the interpolymer at about 50 mole % or less and having a carbon/oxygen atom ratio of about 3 or more ("hydrophobic" monomer).Typical examples are vinyl acetate/vinyl fatty ester copolymers and vinyl acetate/dialkyl maleate copolymers. This invention also relates to uses for these compositions, particularly in the demulsification of W/O emulsions.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: April 15, 1986
    Assignee: Petrolite Corporation
    Inventors: Rudolf S. Buriks, James G. Dolan
  • Patent number: 4579956
    Abstract: Amino-phosphonates are prepared by reacting an enamine with a phosphite ester, for example, according to the equation ##STR1## where OR' is an alcohol moiety and NR.sub.2 is an amino moiety, both R and R' being preferably hydrocarbon such as alkyl or R.sub.2 is part of a ring structure. These compounds have many uses, for example, as corrosion inhibitors, scale inhibitors, fuel stabilizers, etc. In addition, amino-phosphonates can be converted to alpha, beta - unsaturated phosphonates according to the equation ##STR2## which are useful in forming flame retardant polymers and copolymers.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: April 1, 1986
    Assignee: Petrolite Corporation
    Inventor: Derek Redmore
  • Patent number: 4578243
    Abstract: This invention relates to compositions of the formula ##STR1## where R is a hydrocarbon, A is alkylene, and Z is S, SO, SO.sub.2, and salts thereof. This invention also relates to uses thereof, for example as microbiocidal agents, corrosion inhibitors, etc.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 25, 1986
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Patent number: 4570656
    Abstract: An improved method of transporting viscous hydrocarbons containing at least 10 to 15 percent water from a well bore hole or between two points via pipeline which comprises adding to the viscous hydrocarbon containing water a sufficient amount of a nonaqueous solution or dispersion of a surfactant to form a low viscosity oil-in-water emulsion which is easily transported.
    Type: Grant
    Filed: May 5, 1983
    Date of Patent: February 18, 1986
    Assignee: Petrolite Corporation
    Inventors: William J. Matlach, Michael E. Newberry, Charles L. Thierheimer, Jr.