This inventor holds 4 USPTO granted patents. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1990-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Lockport, NY (US) (1990 - 1991)
- Hockessin, DE (US) (1995)
Company Filing History:
Years Active: 1990-1995
Title: Suriyanarayanan Dorai: Innovator in Polyether Glycol Technology
Introduction
Suriyanarayanan Dorai is a notable inventor based in Lockport, NY (US). He has made significant contributions to the field of polyether glycols, holding a total of 4 patents. His work focuses on improving the molecular weight distribution of these compounds, which are essential in various industrial applications.
Latest Patents
One of his latest patents involves a method for reducing the molecular weight polydispersity of polyether glycols. This process specifically targets poly(tetramethylene ether) glycols, achieving a narrow molecular weight distribution (e.g., Mw/Mn=1.2 to 1.80) through ultrafiltration. The method entails feeding molten PTMEG at controlled temperatures and pressures, resulting in a retentate characterized by low water content and minimal oligomeric cyclic ethers. Another significant patent details an improved method for removing transesterification catalysts from polyether polyols. This innovative approach utilizes magnesium sulfate or sulfite to recover purified poly(tetramethylene ether) glycol from an aqueous solution, ensuring the effective removal of catalyst residues without substantial loss of the desired polymer.
Career Highlights
Suriyanarayanan Dorai is currently employed at E.I. du Pont de Nemours and Company, where he continues to advance his research in polymer technology. His expertise in polyether glycols has positioned him as a key figure in the development of more efficient manufacturing processes.
Collaborations
Throughout his career, Dorai has collaborated with esteemed colleagues, including William W. Goudie and Sarah E. Ochsenhirt. These partnerships have fostered a collaborative environment that enhances innovation and research outcomes.
Conclusion
Suriyanarayanan Dorai's contributions to the field of polyether glycols exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of polymer chemistry and a dedication to improving industrial processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile