Patents by Inventor Francis W. Migliaro, Jr.

Francis W. Migliaro, Jr. 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).

  • Preparation of hydroxylammonium salts of 5-nitro-1,2,4-triazol-3-one
    Patent number: 5405971
    Abstract: The present invention relates to a novel compound which is the hydroxylammonium or lower alkyl hydroxylammonium salt of 3-nitro-1,2,4-triazol-5-one, together with processes for preparation thereof. One process comprises a two-step reaction comprising: (a) reacting 3-nitro-1,2,4-triazol-5-one with an aqueous alkali metal or alkaline earth metal hydroxide to form an aqueous solution of an alkali metal or alkaline earth metal salt of 3-nitro-1,2,4-triazol-5-one, and (b) reacting said alkali metal or alkaline earth metal salt of 3-nitro-1,2,4-triazol-5-one with an aqueous solution of hydroxylammonium salt or lower alkyl-substituted hydroxylammonium salt to form the hydroxylammonium salt of 3-nitro-1,2,4-triazol-5-one.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: April 11, 1995
    Assignee: Olin Corporation
    Inventors: Eugene F. Rothgery, Francis W. Migliaro, Jr.
  • Hydroxylammonium salts of 5-nitro-1,2,4-triazol-3-one
    Patent number: 5274105
    Abstract: The present invention relates to a novel compound which is the hydroxylammonium or lower alkyl hydroxylammonium salt of 3-nitro-1,2,4-triazol-5-one, together with processes for preparation thereof. One process comprises a two-step reaction comprising: (a) reacting 3-nitro-1,2,4-triazol-5-one with an aqueous alkali metal or alkaline earth metal hydroxide to form an aqueous solution of an alkali metal or alkaline earth metal salt of 3-nitro-1,2,4-triazol-5-one, and (b) reacting said alkali metal or alkaline earth metal salt of 3-nitro-1,2,4-triazol-5-one with an aqueous solution of hydroxylammonium salt or lower alkyl-substituted hydroxylammonium salt to form the hydroxylammonium salt of 3-nitro-1,2,4-triazol-5-one.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: December 28, 1993
    Assignee: Olin Corporation
    Inventors: Eugene F. Rothgery, Francis W. Migliaro, Jr.
  • Process for producing a gel-free coagulated rubber with low ethylenic unsaturation
    Patent number: 5057601
    Abstract: This invention relates to a process for making nitrile rubber characterized by being essentially gel-free and at least about 90% saturated. The process comprising reacting an ethylenically unsaturated polymer in latex from, hydrazine, and an oxidant, followed by coagulation and filtration in order to isolate the reduced rubber. The process utilizes a reaction mixture containing a high molar ratio of hydrazine to unsaturated polymer.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: October 15, 1991
    Assignee: Olin Corporation
    Inventors: Henry W. Schiessl, Francis W. Migliaro, Jr.
  • Synthetic resin composition and its method of use
    Patent number: 4904714
    Abstract: Tetraalkylpiperidinyl substituted uracil derivatives are disclosed which can be represented by the formula ##STR1## wherein each R' is independently an alkyl radical, n is 1 or 2 and R is a substituted or unsubstituted aliphatic radical, cycloaliphatic radical, aromatic radical or aromatic-aliphatic radical.These derivatives are useful as UV light stabilizers in synthetic resins.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 27, 1990
    Assignee: Olin Corporation
    Inventors: Robert J. Raynor, Francis W. Migliaro, Jr.
  • Tetraalkylpiperidinyl substituted uracil derivatives and their use as ultraviolet light stabilizers
    Patent number: 4816585
    Abstract: Tetraalkylpiperidinyl substituted uracil derivatives are disclosed which can be represented by the formula ##STR1## wherein each R' is independently an alkyl radical, n is 1 or 2 and R is a substituted or unsubstituted aliphatic radical, cycloaliphatic radical, aromatic radical or aromatic-aliphatic radical.These derivatives are useful as UV light stabilizers in synthetic resins.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: March 28, 1989
    Assignee: Olin Corporation
    Inventors: Robert J. Raynor, Francis W. Migliaro, Jr.