Acyclic Carbon Chain Containing Carbon To Carbon Unsaturation Bonded Directly To The Cyclic Anhydride Patents (Class 549/255)
  • Production of alkenyl substituted aliphatic dicarboxylic anhydrides
    Patent number: 4414397
    Abstract: Reaction of maleic acid anhydride and polyisobutylene to form product polyisobutenyl succinic acid anhydride is effected under controlled conditions whereby tar and sludge formation is minimized.
    Type: Grant
    Filed: January 7, 1982
    Date of Patent: November 8, 1983
    Assignee: Texaco Inc.
    Inventor: Justin C. Powell
  • Use of a catalyst to inhibit formation of tar during the "ENE" reaction of an ethylenically unsaturated alpha, beta dicarboxylic acid compound and an ethylenically unsaturated hydrocarbon
    Patent number: 4396774
    Abstract: A process for the production of a substituted alpha, beta dicarboxylic acid compound substantially free of tar and other resinous reaction byproducts comprising the reaction of an ethylenically unsaturated long chain compound having at least 10 carbon atoms and an ethylenically unsaturated alpha, beta dicarboxylic acid compound at conditions favoring the ENE reaction in the presence of a catalytically effective amount of an alkyl aluminum halide.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: August 2, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventor: John G. Schaffhausen
  • Process for the preparation of alkenyl succinic anhydrides
    Patent number: 4388471
    Abstract: Disclosed is a process for the preparation of substituted carboxylic acids and their derivatives in which the synthesis reaction is carried out at least partially thermally in the presence of a furan-type compound. The furan-type compound substantially increases yields and reduces the formation of undesirable resinous by-products.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: June 14, 1983
    Assignee: Chevron Research Company
    Inventor: Robert H. Wollenberg
  • Process for liquefying acid anhydride
    Patent number: 4332733
    Abstract: A normally solid Diels-Alder reaction product between maleic anhydride and decatriene can be liquefied by heat-treating at from 60.degree. to 250.degree. C. for from 10 minutes to 10 hours in the presence of a compound selected from the following groups (a) to (e):(a) alkali metal salts;(b) nitrogen atom-containing organic compounds;(c) phosphorus atom-containing compounds selected from phosphines and quaternary phosphonium salts;(d) thiocyanates; and(e) solid basic compounds.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: June 1, 1982
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Hiroshi Samejima, Mareki Miura, Yoshinobu Onuma
  • Hydroxyamide acid products and butyrolactone and butyrolactam products
    Patent number: 4329286
    Abstract: Metal salts and amides of alkyl-lactam acetic acids are prepared by reacting gamma-hydrocarbyl butyrolactone acetic acid compounds derived from alkenylsuccinic anhydrides with metal compounds and amines or amines alone. High molecular weight lactam acid salts and amides and metal complexes and metal carbamates thereof are useful as detergents or dispersants in organic industrial fluids. Another aspect of this invention is a method of preparing lactone acetic acids in yields up to 90% conversion from alkenylsuccinic anhydrides.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: May 11, 1982
    Assignee: Mobil Oil Corporation
    Inventors: El-Ahmadi I. Heiba, Albert L. Williams