Hydroxy, Bonded Directly To Carbon, Or Ether In An Acyclic Substituent E (h Of -oh May Be Replaced By A Substituted Or Unsubstituted Ammonium Ion Or A Group Ia Or Iia Light Metal) Patents (Class 564/208)
  • Patent number: 4536600
    Abstract: Novel polyoxyalkylenepolyacrylamide compounds useful as adhesives are disclosed. These novel compounds are prepared by mixing and reacting di- and tri-functional polyoxyalkylenepolyamines with an acrylate such as metharylic acid or methylmethacrylate at an elevated temperature and pressure.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: August 20, 1985
    Assignee: Texaco Inc.
    Inventors: Ernest L. Yeakey, Lewis W. Watts, Jr.
  • Patent number: 4495367
    Abstract: A new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or methyl; R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are lower alkyls; n is an integer ranging from 1 to 6; and X and Y are the same or different anions.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: January 22, 1985
    Assignee: Celanese Corporation
    Inventor: Laurence G. Dammann
  • Patent number: 4394493
    Abstract: Crosslinkable graft copolymers of poly(oxyalkylene) are provided which comprise from about 1 percent by weight of a substituted N-methylol derivative of acrylamide grafted onto a poly(oxyalkylene)-polymer.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: July 19, 1983
    Assignee: Union Carbide Corporation
    Inventors: David J. Bartkovitz, George H. Greene
  • Patent number: 4393237
    Abstract: Novel polyoxyalkylenepolyacrylamide compounds useful as adhesives are disclosed. These novel compounds are prepared by mixing and reacting di- and tri-functional polyoxyalkylenepolyamines with an acrylate such as methacrylic acid or methylmethacrylate at an elevated temperature and pressure.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: July 12, 1983
    Assignee: Texaco Inc.
    Inventors: Ernest L. Yeakey, Lewis W. Watts, Jr.
  • Patent number: 4370497
    Abstract: The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >C.dbd.S groups, in the presence of other relatively easily oxidized functions which remain unaffected; telluroxides of interest as oxidizing agents include, for example, compounds of the formula: ##STR1## wherein R and R.sup.1, which may be the same or different, each represent an optionally substituted aryl or heterocyclic group; or R and R.sup.1 together with the tellurium atom therebetween represent a heterocyclic ring, which may contain one or more further heteroatoms, and which may carry substituents and/or fused aromatic rings.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: January 25, 1983
    Inventors: Derek H. R. Barton, Steven V. Ley, Clive A. Meerholz
  • Patent number: 4301083
    Abstract: Polyoxyalkylene compounds having at least four oxyalkylene units and one or two terminal hydroxyl groups are etherified by reacting same with organic primary chlorides or bromides in the presence of an aqueous, at least 30% by weight solution of sodium or potassium hydroxide to produce the corresponding etherified polyoxyalkylene derivatives. The molar ratio of the organohalide to the hydroxyl group(s) of the polyoxyalkylene compound is at least 1.2, and the molar ratio of the alkali metal hydroxide to such hydroxyl group(s) is at least 1.
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: November 17, 1981
    Assignee: Kuraray Co., Ltd.
    Inventors: Noriaki Yoshimura, Masuhiko Tamura
  • Patent number: 4288390
    Abstract: N-(aminomethyl)-.alpha.,.beta.-ethylenically unsaturated carboxamides such as N-(dimethylaminomethyl)acrylamide are readily prepared without coincident production of saturated impurities by reacting at a pH below 7 an .alpha.,.beta.-ethylenically unsaturated carboxamide such as acrylamide or N-substituted derivative such as N-methylolacrylamide with a secondary amine such as dimethylamine, and a lower aldehyde such as formaldehyde when such is required. The resulting aminomethyl carboxamides are polymerized at a pH of 7 or less to form polymers containing essentially no gelled product.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: September 8, 1981
    Assignee: The Dow Chemical Co.
    Inventor: Charles J. McDonald
  • Patent number: 4265835
    Abstract: In a process for preparing a N-substituted derivative of a carboxamide, the conversion of carboxamide to the derivative is determined by carbon-13 nuclear magnetic resonance analysis (CMR) wherein the intensities of the carbonyl carbon peaks attributable to the carboxamide and the derivative are measured under conditions of magnetic resonance and the mole ratio of carboxamide to derivative is determined by comparing the intensities of said carbonyl carbon peaks.For example, in the reaction of polyacrylamide with a secondary amine such as dimethylamine and formaldehyde, the conversion of the polyacrylamide to its N-(dimethylaminomethyl) derivative is determined by subjecting the sample to CMR analysis and comparing the intensities of the carbonyl carbon peaks of the polyacrylamide and the N-(dimethylaminomethyl) derivative.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: May 5, 1981
    Assignee: The Dow Chemical Company
    Inventors: Charles J. McDonald, Robert H. Beaver