Patents Assigned to Petrolite Corporation
  • Quaternary ammonium derivatives of 1,4 thiazine sulfonic acids
    Patent number: 4569992
    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: January 19, 1981
    Date of Patent: February 11, 1986
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Thioureylenes and uses thereof
    Patent number: 4569785
    Abstract: This invention relates to Thioureylene prepared by reacting an oxyalkylated polyamine with thiourea and to uses of such Thioureylene for example in removing oils, solids, and combinations thereof from aqueous systems, etc.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: February 11, 1986
    Assignee: Petrolite Corporation
    Inventor: Thomas J. Bellos
  • Ester-containing halopolyalkylenes
    Patent number: 4568359
    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: March 18, 1985
    Date of Patent: February 4, 1986
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Ester-containing halopolyalkylenes
    Patent number: 4568726
    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: March 18, 1985
    Date of Patent: February 4, 1986
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Linear N,N'-tetrasubstituted diamines and process for their preparation
    Patent number: 4564707
    Abstract: This invention relates to the following compounds: ##STR1## Process for their preparation and uses thereof, where R.sub.1 and R.sub.2 are substituted groups, and R.sub.6, R.sub.5, R.sub.4 and R.sub.3 are hydrogen or substituted groups.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: January 14, 1986
    Assignee: Petrolite Corporation
    Inventor: Bernardus A. Oude Alink
  • Halide free octahydrophenanthridine corrosion inhibitors
    Patent number: 4559163
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: December 17, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • 4,5-Dihydrothiazoles and preparation thereof
    Patent number: 4555576
    Abstract: 2,5-dihydrothiazoles are prepared by reacting aza-alkylene-dienes with sulfur at relatively low temperatures for example below about 160.degree. C. Where the reaction is carried out at relatively higher temperature, for example above about 160.degree. C., such as 160.degree. to 250.degree. C., 4,5-dihydrothiazoles are formed. In addition 2,5-dihydrothiazoles can be converted to 4,5-dihydrothiazoles by heating them to temperatures above about 160.degree. C.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: November 26, 1985
    Assignee: Petrolite Corporation
    Inventor: Bernardus A. Oude Alink
  • Ester-containing halopolyalkylenes
    Patent number: 4554327
    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: November 19, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Ester-containing halopolyalkylenes
    Patent number: 4553980
    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: November 19, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Oil field biocide composition
    Patent number: 4552591
    Abstract: There is provided a biocide composition for oil field fluid polymers and oil field water polymers. The composition comprises a biocide adsorbed on the surface of a solid, particulate adsorbent. The composition lessens personal and environmental contamination by spilled or splashed liquid biocides.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: November 12, 1985
    Assignee: Petrolite Corporation
    Inventor: Scott W. Millar
  • Ester-containing halopolyalkylenes
    Patent number: 4544712
    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 1, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Ester-containing halopolyalkylenes
    Patent number: 4541839
    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: July 2, 1984
    Date of Patent: September 17, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Mixtures of non-halogen salts of nitrogen heterocyclics and nitrogen-sulfur heterocyclics
    Patent number: 4539140
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: September 3, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Pyrimidines containing sulfur and amino groups as corrosion inhibitors
    Patent number: 4539404
    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. 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: September 3, 1985
    Assignee: Petrolite Corporation
    Inventors: Neil E. S. Thompson, Derek Redmore, Bernardus A. Oude Alink, Benjamin T. Outlaw
  • Antistats containing acrylonitrile copolymers and polyamines
    Patent number: 4537601
    Abstract: This invention relates to compositions comprising (1) acrylic-type ester-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: October 29, 1984
    Date of Patent: August 27, 1985
    Assignee: Petrolite Corporation
    Inventor: Michael I. Naiman
  • Ester-containing halopolyalkylenes
    Patent number: 4536191
    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: July 2, 1984
    Date of Patent: August 20, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Ester-containing halopolyalkylenes
    Patent number: 4536551
    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: July 2, 1984
    Date of Patent: August 20, 1985
    Assignee: Petrolite Corporation
    Inventors: Michael I. Naiman, John A. Schield
  • Halide free corrosion inhibitors
    Patent number: 4525296
    Abstract: This invention relates to non-halogen salts of nitrogen and/or nitrogen-sulfur heterocyclics as corrosion inhibitors for stainless steel-containing systems. These are more effective as corrosion inhibitors when employed in combination with surfactants, preferably of the non-ionic type such as oxyalkylates.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: June 25, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Use of quaternized derivatives of polymerized pyridines and quinolines as microbiocides
    Patent number: 4522643
    Abstract: This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof.These compositions are polymerized by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides and then alkylating the polymerized products formed.The compositions used in this invention are useful in providing improved means for controlling microbiological organisms including bacteria, fungi, algae, protozoa and the like, present in water and hydrocarbon systems.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: June 11, 1985
    Assignee: Petrolite Corporation
    Inventor: Patrick M. Quinlan
  • Particulate compositions
    Patent number: 4518509
    Abstract: This invention relates to particulate compositions containing chemical additives for petroleum systems. The particulate compositions when added to petroleum systems gradually dissolve over a period of time, releasing the chemical additive, so as to improve the petroleum system. The use of such particulate compositions has an advantage over the use of the chemical additive itself since the pellets give longer residence time and sustained treatment over a longer period.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: May 21, 1985
    Assignee: Petrolite Corporation
    Inventor: Michael E. Newberry