Karunakaran Narasimhan

Title: Karunakaran Narasimhan: Inventor of N-Acyl Amino Acid Surfactants

Introduction

Karunakaran Narasimhan is an inventor based in Mason, Ohio, and works at The Procter & Gamble Company. His patent work focuses on N-acyl amino acid surfactants and methods for preparing surfactant compositions. He is associated with 2 patents.

Latest Patents

Blends of N-acyl Alaninates and Other N-acyl Amino Acid Surfactants and Derivatives Thereof. This patent describes a surfactant composition containing a homogeneous mixture with more than 70% by weight of an N-acyl alaninate surfactant alongside another N-acyl amino acid surfactant. The disclosed preparation process combines alanine and another amino acid, or its anhydrous alkali salt, with a waterless base and a fatty alkyl ester. The mixture is heated to no more than 180°C, while alkyl alcohol is continuously removed until the reaction mixture becomes substantially clear and forms the blend.

N-acyl Amino Acid Surfactants and Derivatives Thereof. This patent describes surfactant compositions with low impurity levels, including compositions containing more than 80% by weight of an N-acyl amino acid surfactant and substantially free of solvents and/or sodium chloride. The preparation method combines an amino acid, a waterless base, and a fatty alkyl ester, then heats the mixture and removes alkyl alcohol until the reaction mixture becomes substantially clear.

Career Highlights

Narasimhan’s listed patent work addresses surfactant composition and manufacturing processes. The inventions describe approaches to producing N-acyl amino acid surfactants and blends while controlling composition and impurities.

Collaborations

His listed coworkers include Victor Manuel Arredondo and Howard David Hutton III.

Conclusion

Karunakaran Narasimhan’s patent portfolio reflects work at The Procter & Gamble Company on N-acyl amino acid surfactants, their blends, and processes for preparing them.