Victor E Pietryga is a notable inventor based in Berwyn, IL (US). He has made significant contributions to the field of masking compositions, particularly in methods for applying protective coatings to metal parts. His innovative approaches have led to the development of two patents that enhance the efficiency and effectiveness of chemical milling processes.

Latest Patents

Victor's latest patents include a method for applying masking compositions that are resistant to strong acid and base etchants used in chemical milling. One of his patents discloses a method involving an aqueous emulsion for coating a metal part with a peelable mask. This mask is designed to withstand harsh chemical environments. The method involves contacting a polyvalent metal cation salt-surfaced part with an anionic emulsion, which contains coalescent rubbery particles and pigment. The total solids content of this emulsion is at least about 10 weight percent, with a specific weight ratio of pigment to rubbery particles.

Another patent focuses on a method of coating a metal part with a peelable mask that is also resistant to chemical etchants. In this method, the metal part is first surfaced with a layer of polyvalent metal salt, such as calcium nitrate. It is then immersed in a high solids content anionic emulsion of heavily pigmented coalescent rubbery particles. The emulsion contains at least 45% total solids content and at least 20% pigment, with a pigment to binder ratio ranging from 0.75:1 to 1:0.51. This innovative approach ensures that the desired coating thickness is achieved before the coated part is baked to complete the mask formation.

Career Highlights

Victor E Pietryga is associated with Desoto, Inc., where he has applied his expertise in developing advanced masking compositions. His work has significantly impacted the chemical milling industry, providing solutions that enhance the durability and effectiveness of protective coatings.

Collaborations

Throughout his career, Victor has collaborated with notable colleagues, including Fred D Hawker and Robert W Byrd. These collaborations have contributed to the advancement of technologies in the field of masking compositions.

Conclusion

Victor E Pietryga's innovative work in masking compositions has led to significant advancements in the chemical milling process. His patents reflect a deep understanding of materials and methods that enhance the performance

Profile summary based on public USPTO records.

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