Company Filing History:
Years Active: 1976-1993
Title: Innovations of Richard D Chapman
Introduction
Richard D Chapman is a notable inventor based in Pensacola, FL (US). He has made significant contributions to the field of polymer chemistry, particularly in the production of linear amorphous polyamides. With a total of 6 patents to his name, his work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is titled "Process for the production of linear amorphous polyamides with excess." This process involves the production of linear amorphous polyamides that have more amine endgroups than acid endgroups. The method includes condensing an aqueous solution of salts that contain at least one aromatic diacid with a carbon chain length of 7 to 20 and a greater than equimolar amount of at least one aliphatic diamine with a carbon chain length of 4 to 20. Additionally, polyamides derived from hexamethylene diamine and terephthalic acid are highlighted, where fiber-forming polymers are prepared from a mixture of hexamethylene diamine salts of terephthalic acid, isophthalic acid, and a small amount of at least one aliphatic dibasic acid, such as adipic acid, which has a carbon chain length of 5 to 12. The polymers can be produced in a batch autoclave and extruded without the need for cleaning the autoclave between successive runs.
Career Highlights
Richard D Chapman has had a distinguished career, working at Monsanto Company, where he has been able to apply his innovative ideas in polymer production. His expertise in the field has allowed him to develop processes that enhance the efficiency and effectiveness of polymer manufacturing.
Collaborations
Throughout his career, Richard has collaborated with notable coworkers, including Donald A Holmer and Oscar A Pickett, Jr. These collaborations have contributed to the advancement of their shared goals in the field of polymer chemistry.
Conclusion
Richard D Chapman is a prominent figure in the field of polymer innovation, with a focus on linear amorphous polyamides. His contributions through patents and collaborations have significantly influenced the industry.