Sulfurized Carboxylic Acid Ester Patents (Class 508/344)
  • Patent number: 10807942
    Abstract: The present invention relates to a coalescing agent and a coating composition containing the coalescing agent as represented in structure (I); wherein; n is integer from 1 to 8; R1 and R2 independently represents group selected from alkyl, alkenyl, alkynyl, phenyl, or benzyl groups; and X represents group selected from hydroxy or amine. The coalescing agent according to this invention contains low amount of volatile organic compounds, has no pungent odour, and environmental friendly. Moreover, it provides good efficacy when being used as coating component.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 20, 2020
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Vorapong Pimolsiriphol, Yingrak Prai-in, Thammarat Panyathanmaporn
  • Patent number: 8076299
    Abstract: It is an object of the present invention to provide a novel method for producing a peptide thioester. In the present invention, general peptide synthesis is performed on a solid-phase resin, carboxylic acid obtained after cutout is allowed to react with p-toluenesulfonyl isocyanate, and then the reaction product is alkylated, and is reacted with thiol. Thus, peptide thioester is simply synthesized under mild conditions.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: December 13, 2011
    Assignee: Riken
    Inventors: Shino Manabe, Yukishige Ito, Tomoyuki Sugioka
  • Publication number: 20020151443
    Abstract: Automatic transmission fluids are described which contain at least 0.05 weight percent of a dialkyl thiadiazole and sulfurized fat, sulfurized fatty acid, sulfurized fatty acid ester, up to about 0.15 weight % of a metal-containing detergent, and/or a mixture thereof. The transmission fluids according to the present invention exhibit improved anti-wear and extreme pressure performance.
    Type: Application
    Filed: February 9, 2001
    Publication date: October 17, 2002
    Inventor: Sanjay Srinivasan
  • Patent number: 6054418
    Abstract: A process for sulfurizing a composition of unsaturated fatty ester is described in which said composition is reacted with elemental sulfur in the presence of a promoter that consists of at least one compound with an amine group and in the presence of water. When the sulfur-containing product is separated from an aqueous phase that contains the compound with an amine group, the latter can be reused for several successive sulfurations without substantial loss of activity of the promoter. The compositions of unsaturated fatty esters can be used as additives for lubricating oils or fats.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: April 25, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Thierry Lacome, Bruno Delfort, Maurice Born
  • Patent number: 5874390
    Abstract: An aqueous machining fluid admixture comprises water, a sulfurized oil and a water soluble salt of a dimercaptothiadiazole wherein the weight ratio of the sulfurized oil to the water soluble salt of dimercaptothiadiazole is in the range of from about 15:1 to about 45:1. A method employs the fluid by applying the fluid at the interface between tool and workpiece in shaping or working operations of metallic and solid non-metallic workpieces. The fluid is particularly effective in grinding operations to produce improved grinding ratios.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 23, 1999
    Assignee: Cincinnati Milacron Inc.
    Inventors: Deli Gong, Kevin H. Tucker
  • Patent number: 5641735
    Abstract: Oil soluble compounds having the formula: ##STR1## wherein R and R.sup.1 are independently cyano, alkoxycarbonyl or together form a carbocycle or alkylcarbocycle and R.sup.2 and R.sup.3 are independently alkyl, alkenyl, hydroxyalkyl sulfurized alkyl, or alkoxycarbonylalkyl.The compound are useful as wear protectants or extreme pressure agents to enhance wear protection or extreme pressure properties in lubricating oils and greases.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 24, 1997
    Assignee: Chevron Chemical Company
    Inventor: Andrew W. Ho