Location History:
- Pine Springs, MN (US) (1976)
- Saint Paul, MN (US) (1992 - 1996)
- Grant Township, MN (US) (1996)
- Grant Township, Washington County, MN (US) (1991 - 1998)
- Lake Elmo, MN (US) (1998 - 2014)
Company Filing History:
17 out of 7,865 
2 out of 4 Years Active: 1976-2014
Title: The Innovative Mind of James A. Bonham
Introduction
James A. Bonham, a notable inventor hailing from Grant Township, Washington County, MN, has made significant contributions to the field of chemistry and materials science. With a remarkable portfolio comprising 19 patents, Bonham has demonstrated an exceptional ability to innovate and create solutions that address various industrial challenges.
Latest Patents
Among his latest patents is a ketal compound known as 1,1-di[(alkylphenoxy)ethoxy]cyclohexanes. This invention describes a ketal with a specific molecular formula where R' and R″ represent alkyl groups consisting of 8 to approximately 20 carbon atoms. The method for synthesizing this ketal involves a transketalization process using 1,1-dimethoxycyclohexane or 1,1-diethoxycyclohexane combined with an (alkoxyphenoxy)ethanol type of surfactant, resulting in a ketal that is at least partially soluble in water.
Bonham has also developed an infrared-sensitive, positive-working image-forming composition that utilizes the aforementioned ketal. This composition includes an infrared absorbing dye that has a maximum absorption peak ranging from 700 nm to 1100 nm and a novolac polymer. Applied to a hydrophilic substrate, the composition enables the creation of planographic printing plates. The innovative process involves exposure to near-infrared radiation, allowing the dye to absorb light, generate heat, and disrupt the matrix, which leads to the formation of a positive image upon development with an aqueous alkaline developer.
Career Highlights
James Bonham has collaborated with prominent companies throughout his career, including the Minnesota Mining and Manufacturing Company (3M) and Southern Lithoplate, Inc. His work in these organizations has allowed him to further his research and development initiatives, contributing substantially to the advancement of imaging technologies.
Collaborations
In addition to his industry contributions, Bonham has worked alongside talented individuals such as Mitchell A. Rossman and Richard J. Grant. Their collective expertise has undoubtedly fostered an environment ripe for innovation and the successful realization of groundbreaking inventions.
Conclusion
James A. Bonham stands out as an exemplary inventor whose work continues to influence the fields of chemistry and imaging technology. His 19 patents reflect a deep commitment to innovation and a keen ability to tackle complex challenges in his field. As his career progresses, the potential for further contributions remains promising, reaffirming his status as a key figure in the pantheon of inventors.