Patents by Inventor Terry L. Dwyer

Terry L. Dwyer 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).

  • Lithographic dampening solution
    Patent number: 5387279
    Abstract: The subject invention relates to an improved lithographic dampening solution comprising a diluted dampening solution concentrate having mixed therein a micro-emulsion formulation which spontaneously emulsifies upon mixing with the diluted dampening solution concentrate, the micro-emulsion formulation comprising a mono-, di-, or tripropylene glycol or other glycol having at least 3 carbons; a partially water soluble mono-, di-, or tripropylene glycol C.sub.1 to C.sub.6 alkyl ether; and, a wholly or partially water soluble polymer having an acid value of from about 5 to about 50. The subject invention further relates to a micro-emulsion formulation as previously stated or as stated hereinabove which further contains a nonionic surfactant of HLB 2-10 and a water soluble thickener. The invention further relates to a method for preparing the above-defined improved lithographic dampening solution.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: February 7, 1995
    Assignee: Varn Products Company, Inc.
    Inventors: Ronald S. Conti, Donatas Ramanauskas, Terry L. Dwyer