Charles W. Perry is an accomplished inventor based in Boiling Springs, SC (US). He has made significant contributions to the field of materials science, particularly in the development of innovative methods for coloring various materials. With a total of 3 patents to his name, Perry's work has had a notable impact on the industry.

Latest Patents

Perry's latest patents include a "Method for coloring building materials using a cationic pigment dispersion." This invention involves a cationic dispersion that includes at least one pigment, water, and a quaternary salt of a styrene maleimide imide resin. The method for preparing this dispersion includes mixing the components at high speeds, milling the mixture to reduce pigment agglomerates, and standardizing the dispersion against a color standard. The resulting cationic dispersion exhibits excellent alkali resistance and lightfastness, making it suitable for integrally coloring concrete and other building materials.

Another significant patent is the "Method for coloring cellulosic materials using cationic pigment dispersion." This method involves dispersing pulped cellulosic material into water and coloring it by adding a cationic dispersion. Similar to his previous patent, this method also utilizes a styrene maleimide imide resin to effectively disperse the pigment. The resulting cationic dispersion can be used to color various cellulosic materials, including cotton and paper.

Career Highlights

Charles W. Perry is currently associated with Sun Chemical Corporation, where he continues to innovate and develop new materials. His work has been instrumental in advancing the capabilities of coloring materials in various industries.

Collaborations

Perry has collaborated with notable coworkers such as James E. Moore and Joseph P. LaBazzo, Sr. Their combined expertise has contributed to the successful development of innovative solutions in the field.

Conclusion

Charles W. Perry's contributions to the field of materials science through his innovative patents demonstrate his commitment to advancing technology. His work continues to influence the industry, paving the way for new applications and improvements in material coloring techniques.

Profile summary based on public USPTO records.