Company Filing History:
Years Active: 1987-2014
Title: Innovations by Ralph E. Dufresne
Introduction
Ralph E. Dufresne is a notable inventor based in Auburn, WA (US), recognized for his contributions to adhesive removal technologies. With a total of 7 patents to his name, Dufresne has made significant strides in developing environmentally friendly solutions for various industries.
Latest Patents
One of Dufresne's latest inventions is a gelled adhesive remover composition and method of use. This innovative process utilizes environmentally friendly materials to effectively remove adhesive residues from hard substrates, particularly vehicles such as cars, trucks, buses, and aerospace vehicles including airplanes. The composition comprises one or more non-halogenated organic solvents, a non-abrasive thickening agent, a surfactant, and a vapor-pressure modulating agent. The total Hansen Solubility Parameter (δt) at 25°C for each of the non-halogenated organic solvents ranges from about 14 MPa to about 24 MPa. This invention provides a cost-effective, safe, and environmentally friendly adhesive remover specifically formulated for the removal of pressure-sensitive adhesive residues from large areas of aircraft composite and aluminum surfaces.
Career Highlights
Dufresne is currently employed at The Boeing Company, where he applies his expertise in adhesive technologies. His work contributes to the advancement of aerospace manufacturing and maintenance processes, ensuring that safety and environmental standards are met.
Collaborations
Throughout his career, Dufresne has collaborated with talented individuals such as David F. Feider and Quynhgiao Nguyen Le. These partnerships have fostered innovation and enhanced the development of new technologies in the field of adhesive removal.
Conclusion
Ralph E. Dufresne's innovative work in adhesive removal technologies showcases his commitment to creating environmentally friendly solutions. His contributions to The Boeing Company and the broader aerospace industry highlight the importance of sustainable practices in modern engineering.