Patents by Inventor Gordon B. Robbins

Gordon B. Robbins 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).

  • Patent number: 4551544
    Abstract: The reaction product obtained by combining (i) a titanate (R.sup.1 O).sub.4 Ti (particularly tetraisopropyl titanate) with (ii) 2,4-pentanedione and (iii) a substance which is either(a) at least one other titanate (R.sup.2 O).sub.4 Ti (particularly tetramethyl or tetra-n-butyl titanate or mixtures thereof) or(b) at least one alcohol R.sup.3 OH (particularly methanol or n-butanol or mixtures thereof)wherein R.sup.2 and R.sup.3 differ from R.sup.1 and are each methyl, ethyl, 2-chloroethyl, isopropyl, n-propyl, n-butyl, n-pentyl, 2-pentyl, 3-methylbutyl, 2-methoxyethyl, or methoxyethoxyethyl and the titanate:pentanedione mol ratio is in the range between 1:1 and 1:2. The quantity of said substance is sufficient, even in the presence of a nucleating agent, to depress the freezing point of the reaction product obtained by combining said first-mentioned titanate with 2,4-pentanedione. Also methods of preparing the reaction product are disclosed.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: November 5, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gordon B. Robbins
  • Patent number: 4478755
    Abstract: The reaction product obtained by combining (i) a titanate (R.sup.1 O).sub.4 Ti (particularly tetraisopropyl titanate) with (ii) a lower alkyl acetoacetate (particularly ethyl acetoacetate) and (iii) a substance which is either(a) at least one other titanate (R.sup.2 O).sub.4 Ti (particularly tetramethyl or tetra-n-butyl titanate or mixtures thereof) or(b) at least one alcohol R.sup.3 OH(particularly methanol or n-butanol or mixtures thereof)wherein R.sup.2 and R.sup.3 differ from R.sup.1 and are each methyl, isopropyl, n-butyl or n-pentyl and the titanate:acetoacetate mol ratio is in the range between 1:1 and 1:2 (preferably 1:1). The quantity of said substance is sufficient, even in the presence of a nucleating agent, to depress the freezing point of the reaction product obtained by combining said first-mentioned titanate with said acetoacetate. Also methods of preparing the reaction product are disclosed.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: October 23, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gordon B. Robbins
  • Patent number: 4139477
    Abstract: Solid fabric conditioner compositions comprising quaternary ammonium softener compound and high molecular alcohol, said compositions imparting antistatic properties and improving water wicking of fabrics.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: February 13, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mason Hayek, Gordon B. Robbins, Oliver Yeaton