Patents Assigned to Petrolite Corporation
  • Antistats containing acrylonitrile copolymers and polyamines
    Patent number: 4259087
    Abstract: This invention relates to compositions comprising (1) .alpha.-olefin-acrylonitrile copolymers and (2) polymeric polyamines; and to such compositions in combination with organic liquids such as hydrocarbon fluids in which such compositions are effective as antistatic agents.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: March 31, 1981
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, J. Irvine Knepper, Neil E. S. Thompson
  • Cyclic phenol-aldehyde resins
    Patent number: 4259464
    Abstract: Cyclic phenol-aldehyde resins, for example cyclic tetramers; derivatives thereof; processes by which they are prepared; and uses thereof.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: March 31, 1981
    Assignee: Petrolite Corporation
    Inventors: Rudolf S. Buriks, Allen R. Fauke, John H. Munch
  • Corrosion inhibitors
    Patent number: 4253876
    Abstract: This invention relates to a composition comprising(1) an alkenyl or alkyl succinic acid or the anhydride thereof; and(2) a triester of about 3 moles of an alkenyl or alkyl succinic acid or the anhydride thereof and about 1 mole of a trialkanolamine;and to the use thereof as a corrosion inhibitor.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: March 3, 1981
    Assignee: Petrolite Corporation
    Inventors: Richard L. Godar, Carl C. Hendricks, Kenneth R. Roux
  • Quaternaries of halogen derivatives of alkynoxymethyl amines
    Patent number: 4252743
    Abstract: This invention relates to quaternaries of halogen derivatives of alkynoxymethyl amines and uses thereof. These may be summarized by the following formulae: ##STR1## where R and R' are substituted groups such as alkyl, aryl, etc.; R" is an alkyldene group; and X is halogen and A is an anion; and ##STR2## where R, R' and R" having the same meaning as in (1) and Z is a bridging group, preferably hydrocarbon such as alkylene, alkinylene, alkenylene, arylene, etc.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: February 24, 1981
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Quaternary alkynoxymethyl amines
    Patent number: 4248796
    Abstract: This invention relates to quaternaries of alkynoxymethyl amines and uses thereof. These may be summarized by the following formulae: ##STR1## where R and R' are substituted groups such as alkyl, aryl, etc.; R'" is an acetylenic group; and X is an anion; and ##STR2## where R and R'" having the same meaning as in (1) and Z is a bridging group, preferably hydrocarbon such as alkylene, alkinylene, alkenylene, arylene, etc.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: February 3, 1981
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Inhibition of pitting corrosion
    Patent number: 4240925
    Abstract: This invention relates to a process of inhibiting pitting corrosion which is characterized by the use of synergistic mixtures of organic anodic and cathodic corrosion inhibitors. These synergistic mixtures effectively inhibit pitting corrosion in highly oxygenated systems without the conventional use of heavy metals such as zinc (Zn) or chromium (Cr). This invention also relates to the use of alkoxysilyl alkylene polyamines as pitting corrosion inhibitors.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: December 23, 1980
    Assignee: Petrolite Corporation
    Inventor: William S. Tait
  • Hydrocarbon polymers to improve the hardness of waxes
    Patent number: 4239546
    Abstract: This invention relates to the use of hydrocarbon polymers to improve the hardness of waxes. Blends of hydrocarbon polymers in soft waxes are unexpectedly harder than each component thereof. In addition the blending of hydrocarbon polymers into waxes has a lesser effect on the undesirable properties of (1) increased viscosities and (2) increased cloud points, than occurs when polyethylene are blended into wax.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: December 16, 1980
    Assignee: Petrolite Corporation
    Inventors: Stephen E. Russell, Phillip M. Story, Charles S. Letcher
  • Use of benzazoles as corrosion inhibitors
    Patent number: 4235838
    Abstract: Benzazoles of the general formula ##STR1## and derivatives thereof; where X=O, S, NH and n is a number, for example 3-12 or greater, such as 3-5 or greater, and R is a substituted group, for example, a hydrocarbon or substituted hydrocarbon group, such as alkyl, etc. and n' is a number 0-3 or greater; and to use for such benzazoles as corrosion inhibitors.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: November 25, 1980
    Assignee: Petrolite Corporation
    Inventors: Derek Redmore, Benjamin T. Outlaw
  • .alpha.-Amino phosphonic acids
    Patent number: 4235809
    Abstract: This invention relates to the preparation of .alpha.-amino phosphonic acids by the direct addition of phosphorous acid to imines.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: November 25, 1980
    Assignee: Petrolite Corporation
    Inventor: Derek Redmore
  • Quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylonitrile
    Patent number: 4230839
    Abstract: This invention relates to adducts of salts of polymerizable tertiary amines with acrylic compounds illustrated by acrylamide and acrylonitrile; to polymers and copolymers containing said adducts and to processes for preparing them. This invention also relates to the use of said polymers and copolymers, particularly in the clarification of turbid waters by flocculation or flotation of oil and/or suspended solids. In the preferred embodiment, the quaternary adduct monomer is: ##STR1## where X is an anion, preferably halide such as chloride or carboxylate such as acetate; and polymers and copolymers containing units thereof.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: October 28, 1980
    Assignee: Petrolite Corporation
    Inventors: Rudolf S. Buriks, Allen R. Fauke, David W. Griffiths
  • Hydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting scale formation
    Patent number: 4229294
    Abstract: This invention relates to the use of compounds for inhibiting scale formation, said compounds being characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-hydroxy-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both (1) an epihalohydrin-bisulfite addition product and (2) with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent.They have a wide variety of uses, for example as scale and corrosion inhibitors, iron oxide removers, chelating agents, etc.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: October 21, 1980
    Assignee: Petrolite Corporation
    Inventors: Derek Redmore, Frederick T. Welge
  • Magnesium-containing dispersions
    Patent number: 4229309
    Abstract: This invention relates to stable, fluid magnesium-containing dispersions and the preparations thereof by the high temperature dehydration of Mg(OH).sub.2 to MgO in a dispersant-containing fluid.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: October 21, 1980
    Assignee: Petrolite Corporation
    Inventors: William J. Cheng, David B. Guthrie
  • Magnesium-containing dispersions by decomposition of MgCO.sub.3
    Patent number: 4226739
    Abstract: This invention relates to stable, fluid magnesium-containing dispersions and the preparations thereof by the high temperature decomposition of MgCO.sub.3 to MgO in a dispersant-containing fluid.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: October 7, 1980
    Assignee: Petrolite Corporation
    Inventors: William J. Cheng, David B. Guthrie
  • Process for dehydration and demineralization of diluted bitumen
    Patent number: 4226690
    Abstract: Diluted bitumen emulsion, the aqueous phase of which carries undissolved mineral particles, is upgraded by resolving it by subjecting it to a unidirectional electric field established between an energized electrode and an aqueous material surface serving as an electrical ground. The emulsion is introduced below the level of such surface and allowed to rise. A potential gradient is provided which is sufficient to cause coalescence of the aqueous material in the emulsion as soon as the emulsion breaks the aqueous material surface, the emulsion thereby being resolved at such surface.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 7, 1980
    Assignee: Petrolite Corporation
    Inventor: Robert B. Martin
  • Apparatus and process for electrically resolving emulsions
    Patent number: 4226689
    Abstract: An electric treater and process for electrically resolving emulsions into organic and aqueous phases. The treater includes a horizontally positioned, planar, permeable electrode which is the only electrode means positioned in the treater. The interface between the bodies of organic and aqueous material which collect in the treater is kept at a position intermediate the electrode and a distributor means for introducing emulsion into the treater. The emulsion is resolved at the water surface, which serves as a grounded electrode.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 7, 1980
    Assignee: Petrolite Corporation
    Inventors: Weldon D. Mayse, Frederick D. Watson
  • Use of hydrocarbon polymers to improve oil-containing waxes
    Patent number: 4224204
    Abstract: This invention relates to the use of hydrocarbon polymers for example of the type described in U.S. Pat. No. 4,060,569 to bind oil contained in waxes so that, in end use performance, the wax more closely equals fully refined wax. Among other things, the hydrocarbon polymer not only inhibits and/or prevents the oil in the wax from "sweating" or exuding to the surface but also hardens the wax. The hydrocarbon polymers can also be used to thicken oil to a paste or gel.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: September 23, 1980
    Assignee: Petrolite Corporation
    Inventors: James W. Nichols, Rodney G. Lawrence, Lyle D. McClure
  • Process for clarifying aqueous systems employing quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylamide
    Patent number: 4224150
    Abstract: This invention relates to adducts of salts of polymerizable tertiary amines with acrylic compounds illustrated by acrylamide and acrylonitrile; to polymers and copolymers containing said adducts and to processes for preparing them. This invention also relates to the use of said polymers and copolymers, particularly in the clarification of turbid waters by flocculation or flotation of oil and/or suspended solids. In the preferred embodiment, the quaternary adduct monomer is: ##STR1## where X is an anion, preferably halide such as chloride or carboxylate such as acetate; and polymers and copolymers containing units thereof.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: September 23, 1980
    Assignee: Petrolite Corporation
    Inventors: Rudolf S. Buriks, Allen R. Fauke, David W. Griffiths
  • Media regeneration in electrofiltration
    Patent number: 4221648
    Abstract: The media employed in the electrofiltration of organic fluids can be regenerated by washing with inorganic acids such as phosphoric, nitric, etc., acids. It is particularly effective in systems employing metal catalysts, for example nickel, etc., in hydrogenation systems such as in hydrogenated vegetable oils, etc.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: September 9, 1980
    Assignee: Petrolite Corporation
    Inventor: Robert B. Martin
  • Substituted pyridines
    Patent number: 4220785
    Abstract: This invention relates to substituted pyridines prepared by reacting aldehydes, amines, lower carboxylic acids such as acetic acid in the presence of oxygen. The N-substituted pyridinium salts formed can be converted to pyridines by thermal dealkylation.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: September 2, 1980
    Assignee: Petrolite Corporation
    Inventors: Bernardus A. Oude Alink, Neil E. S. Thompson
  • Sulfone containing quaternary ammonium derivatives of 1,4-thiazines
    Patent number: 4217329
    Abstract: This invention relates to N-alkyl sulfone containing quaternary ammonium derivatives of 1,4-thiazines; to the preparation thereof; and to the uses thereof, for example as corrosion inhibitors, microbiocides, etc.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: August 12, 1980
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan