Patents by Inventor Anthony H Hughes

Anthony H Hughes 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).

  • Blocked isocyanates
    Patent number: 6368669
    Abstract: A blocked polyisocyanate of the formula R—Ym where R is an m valent aliphatic, cycloaliphatic, heterocyclic or aromatic residue; each Y, which may be the same or different, is where R1 is, or, when n is more than 1, each R1, which may be the same or different, is an alkyl, alkenyl, aralkyl, N-substituted carbamyl, phenyl, NO2, halogen or group where R2 is a C1-C4 alkyl group: n is 0, 1, 2 or 3, and m is an integer greater than 1 is useful in paint compositions.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 9, 2002
    Assignee: The Baxenden Chemical Co.
    Inventors: Anthony H Hughes, Arthur Topham
  • Blocked isocyanates
    Patent number: 5986033
    Abstract: A blocked polyisocyanate of the formulaR--Y.sub.mwhere R is an m valent aliphatic, cycloaliphatic, heterocyclic or aromatic residue;each Y, which may be the same or different, is ##STR1## where R.sub.1 is, or, when n is more than 1, each R.sub.1, which may be the same or different, is an alkyl, alkenyl, aralkyl, N-substituted carbamyl, phenol, NO.sub.2, halogen or ##STR2## group where R.sub.2 is a C.sub.1 -C.sub.4 alkyl group; n is 0, 1, 2 or 3; andm is an integer greater than 1 is useful in paint compositions.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: November 16, 1999
    Assignee: The Baxenden Chemical Co.
    Inventors: Anthony H Hughes, Arthur Topham
  • Blocked isocyanates
    Patent number: 5352755
    Abstract: A blocked polyisocyanate of the formulaR--Y.sub.mwhere R is an m valent aliphatic, cycloaliphatic, heterocyclic or aromatic residue;each Y, which may be the same or different, is ##STR1## where R.sub.1 is, or, when n is more than 1, each R.sub.1, which may be the same or different, is an alkyl, alkenyl, aralkyl, N-substituted carbamyl, phenyl, NO.sub.2, halogen or ##STR2## group where R.sub.2 is a C.sub.1 -C.sub.4 alkyl group; n is 0, 1, 2 or 3; andm is an integer greater than 1 is useful in paint compositions.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: October 4, 1994
    Assignee: The Baxenden Chemical Co.
    Inventors: Anthony H. Hughes, Arthur Topham
  • Blocked isocyanates
    Patent number: 5246557
    Abstract: A blocked polyisocyanate of the formulaR--Y.sub.mwhereR is an m valent aliphatic, cycloaliphatic, heterocyclic or aromatic residue;each Y, which may be the same or different, is ##STR1## where R.sub.1 is, or, when n is more than 1, each R.sub.1, which may be the same or different, is an alkyl, alkenyl, aralkyl, N-substituted carbamyl, phenyl, NO.sub.2, halogen or ##STR2## group where R.sub.2 is a C.sub.1 -C.sub.4 alkyl group; n is 0, 1, 2 or 3; andm is an integer greater than 1 is useful in paint compositions.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: September 21, 1993
    Assignee: The Baxenden Chemical Co.
    Inventors: Anthony H. Hughes, Arthur Topham
  • Blocked isocyanates
    Patent number: 4976837
    Abstract: A blocked polyisocyanate of the formulaR-Y.sub.mwhere R is an m valent aliphatic, cycloaliphatic, heterocyclic or aromatic residue;each Y, which may be the same or different, is ##STR1## where R.sub.1 is, or, when n is more than 1, each R.sub.1, which may be the same or different, is an alkyl, alkenyl, aralkyl, N-substituted carbamyl, phenyl, NO.sub.2, halogen or ##STR2## group where R.sub.2 is a C.sub.1 -C.sub.4 alkyl group; n is 0, 1, 2 or 3; andm is an integer greater than 1 is useful in paint compositions.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: December 11, 1990
    Assignee: The Baxenden Chemical Co.
    Inventors: Anthony H. Hughes, Arthur Topham