Patents by Inventor Hilding R. Johnson

Hilding R. Johnson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Biocidal compositions containing bicyclic polyoxymethyleneoxazolidines
    Patent number: 4022906
    Abstract: Biocidal compositions useful in controlling the growth of bacteria and fungi in aqueous surface coatings are aqueous solutions that contain from 20 percent to 80 percent by weight of bicyclic polyoxymethyleneoxazolidines having the structural formula ##STR1## wherein each R represents hydrogen, alkyl of 1 to 6 carbon atoms, phenyl, halophenyl, or --(CH.sub.2 O).sub.m CH.sub.2 OH; m represents a number in the range of 0 to 2; and n represents a number in the range of 1 to 4.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: May 10, 1977
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Henri Sidi, Hilding R. Johnson
  • Biocidal compositions containing monocyclic polyoxymethyleneoxazolidines
    Patent number: 4012261
    Abstract: Biocidal compositions useful in controlling the growth of bacteria and fungi in aqueous surface-coating compositions are aqueous solutions that contain from 20 percent to 80 percent by weight of monocyclic polyoxymethyleneoxazolidines having the structural formula ##STR1## wherein R represents hydrogen, alkyl of 1 to 6 carbon atoms, phenyl, halophenyl, or --(CH.sub.2 O).sub.m CH.sub.2 OH; each R' represents alkyl of 1 to 6 carbon atoms or --CH.sub.2 OH; m represents a number in the range of 0 to 2; and n represents a number in the range of 1 to 4.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: March 15, 1977
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Henri Sidi, Hilding R. Johnson
  • Monocyclic polyoxymethyleneoxazolidines and biocidal compositions containing same
    Patent number: 3962271
    Abstract: Biocidal compositions useful in controlling the growth of bacteria and fungi in aqueous surface-coating compositions are aqueous solutions that contain from 20 percent to 80 percent by weight of a monocyclic polyoxymethyleneoxazolidine having the structural formula ##EQU1## wherein R represents hydrogen, alkyl of 1 to 6 carbon atoms, phenyl, halophenyl, or --(CH.sub.2 O).sub.m CH.sub.2 OH; each R' represents alkyl of 1 to 6 carbon atoms or --CH.sub.2 OH; m represents a number in the range of 0 to 2; and n represents a number in the range of 1 to 4. The polyoxymethyleneoxazolidines preferably contain a total of not more than six oxymethylene units (--CH.sub.2 O--) in one or more ring substituents.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: June 8, 1976
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Henri Sidi, Hilding R. Johnson
  • Biocidal bicyclic polyoxymethyleneoxazolidines
    Patent number: 3952000
    Abstract: Biocidal compositions useful in controlling the growth of bacteria and fungi in aqueous surface coatings are aqueous solutions that contain from 20 percent to 80 percent by weight of a bicyclic polyoxymethyleneoxazolidine having the structural formula ##EQU1## wherein each R represents hydrogen, alkyl of 1 to 6 carbon atoms, phenyl, halophenyl, or --(CH.sub.2 O).sub.m CH.sub.2 OH; m represents a number in the range of 0 to 2; and n represents a number in the range of 1 to 4.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: April 20, 1976
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Henri Sidi, Hilding R. Johnson