Location History:
- South Amboy, NJ (US) (1984 - 1988)
- Yardley, PA (US) (1992 - 2001)
- Franklin, WI (US) (1999 - 2002)
Company Filing History:
35 out of 1,084 
2 out of 25 
1 out of 143 
Years Active: 1984-2002
Areas of Expertise:
Title: **Stephen A. Fischer: A Pioneer in Acrylic Resin Innovations**
Introduction
Stephen A. Fischer, a notable inventor based in Yardley, PA, has made significant contributions to the field of polymer science, particularly in the development of acrylic resins. With an impressive portfolio of 43 patents, his work continues to influence various industries, including printing and coatings.
Latest Patents
Fischer's recent patents showcase his innovative approach to polymer chemistry. One of his latest inventions is a method for creating solid acrylic resins using a continuous tube reactor. This process focuses on producing acrylic resins suitable for applications as polymeric surfactants in emulsion polymerization, pigment grinding resins, and dispersions for overprint varnishes. The key feedstock includes styrene, α-methyl styrene, acrylic acid, and a polymerization initiator, primarily solvent-free. This efficient method emphasizes controlled pressure and low residence time and temperature, allowing for the recovery and reuse of unreacted monomers in the feedstock.
Another significant patent involves the creation of novel polymeric compounds that can be utilized in pigmented compositions, including inks. These inks are distinguished by their high bond strength and versatility, making them ideal for various printing processes, especially on flexible substrates.
Career Highlights
Throughout his career, Stephen A. Fischer has collaborated with leading companies such as Henkel Corporation and Cook Composites & Polymers Co., where his expertise has been instrumental in advancing product development and innovation. His commitment to research and development has established him as a leading figure in his field.
Collaborations
Fischer's career has also been enriched by collaborations with esteemed colleagues, including David I. Devore and Reuben H. Grinstein. These partnerships have not only fostered innovative ideas but have also contributed to the successful development of patented technologies in polymer applications.
Conclusion
Stephen A. Fischer's contributions to acrylic resin technology and his extensive patent portfolio affirm his role as a prominent inventor. His work has broadened the horizons of polymer science and continues to be relevant in various industrial applications, paving the way for future innovations in the field.