Plural Acetal Or Ketal Groups (e.g., Tetraacetals, Etc.) Patents (Class 568/603)
  • Fiber lubricants yielding low residues upon oxidation
    Patent number: 4314000
    Abstract: A linked compound is a useful lubricant for fibers such as nylon and polyester, providing low volatility at a temperature below about 230.degree. C. and by oxidizing, leaving a low level of residue, at temperatures above about 230.degree. C.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: February 2, 1982
    Assignee: BASF Wyandotte Corporation
    Inventors: Basil Thir, David D. Newkirk, Stephen E. Eisenstein, William K. Langdon
  • Preparation of 2-isopropylamino pyrimidine
    Patent number: 4297495
    Abstract: The invention provides a process for the preparation of 2-isopropylamino-pyrimidine, the process comprising reacting bis(isopropylguanidine)sulphate with 1,1,3,3-tetraethoxy-propane in stoichiometric proportions at 40.degree.-60.degree. C., in acidic aqueous solution.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: October 27, 1981
    Assignee: Societe d'Etudes de Produits Chimiques
    Inventor: Andre Esanu
  • Aldehyde generators and foodstuffs containing such generators
    Patent number: 4280011
    Abstract: The use of acetals as aldehyde generators in foodstuff applications is disclosed.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: July 21, 1981
    Assignee: Hercules Incorporated
    Inventor: Robert S. DeSimone
  • Acetal-acid compositions
    Patent number: 4244876
    Abstract: A storage stable composition of glutaraldehyde acetals and an organic acidic catalyst, which can be converted to glutaraldehyde at the site and upon demand, by the addition of water.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: January 13, 1981
    Assignee: Union Carbide Corporation
    Inventors: Glenn H. Warner, Louis F. Theiling, Marvin G. Freid
  • Multi-block coupled polyoxyalkylene copolymer surfactants
    Patent number: 4189609
    Abstract: Multi-block coupled polyoxyalkylene copolymer surfactants are prepared from individual blocks of polymers and copolymers of alkylene oxides by reacting these with bifunctional compounds to form polycarbonate esters and polyformals.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: February 19, 1980
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon