Patents by Inventor Raymond W. Angelo

Raymond W. Angelo 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).

  • Photocurable epoxy composition with sulfonium salt photoinitiator
    Patent number: 5102772
    Abstract: Photocurable compositions with, as photoinitiator, sulfonium salts of the formula: ##STR1## wherein Ar is a fused aromatic radical; R.sub.1 is a divalent organic bridge; each R.sub.2 and R.sub.3 individually is an alkyl, aryl, alkaryl, aralkyl or substituted aryl, provided that not more than one of R.sub.2 and R.sub.3 is alkyl; and A is a non-nucleophilic anion; use thereof and preparation thereof.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: April 7, 1992
    Assignee: IBM
    Inventors: Raymond W. Angelo, Jeffrey D. Gelorme, Joseph P. Kuczynski, William H. Lawrence, Socrates P. Pappas, Logan L. Simpson
  • Sulfonium salts and use and preparation thereof
    Patent number: 5047568
    Abstract: Sulfonium salts of the formula: ##STR1## wherein Ar is a fused aromatic radical; R.sub.1 is a divalent organic bridge; each R.sub.2 and R.sub.3 individually is an alkyl, aryl, alkaryl, aralkyl or substituted aryl, provided thatn not more than one of R.sub.2 and R.sub.3 is alkyl; and A is a non-nucleophilic anion; use thereof and preparation thereof.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: September 10, 1991
    Assignee: International Business Machines Corporation
    Inventors: Raymond W. Angelo, Jeffrey D. Gelorme, Joseph P. Kuczynski, William H. Lawrence, Socrates P. Pappas, Logan L. Simpson
  • Etchant composition and use thereof
    Patent number: 4376057
    Abstract: An aqueous acidic composition suitable for etching containing an acid and polyvinyl alcohol and use thereof.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: March 8, 1983
    Assignee: International Business Machines Corporation
    Inventors: Raymond W. Angelo, Peter Bakos
  • Polyimide coating process and material
    Patent number: 4238528
    Abstract: A protective layer composition, suitable for protecting metal electrodes on components and other microelectronic circuitry, comprises an organic thermoplastic polymeric material, an organic solvent or solvents, and a non-ionic fluorocarbon surfactant as a wetting/leveling/flow control agent. A typical formulation comprises an aromatic polymer which cures to form a polyamide-imide polymer, an organic solvent or a mixture of orangic solvents and a non-ionic fluorocarbon surfactant.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: December 9, 1980
    Assignee: International Business Machines Corporation
    Inventors: Raymond W. Angelo, Richard M. Poliak, John R. Susko
  • Wire coating solution
    Patent number: 4137211
    Abstract: A solderable, flame retardant wire coating solution composition comprising a bromine and phosphorous containing polyol and hydroxy terminated saturated polyester of adipic acid and ethylene glycol together with a suitable epoxy resin and a phenol blocked toluene diisocyanate adduct. To this is added a small weight/percent of a catalyst, such as dibutyltin dilaurate, all mixed in a suitable solvent.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: January 30, 1979
    Assignee: International Business Machines Corporation
    Inventors: Raymond W. Angelo, Edward J. Armstrong, Robert Bock