Charles Fearnley

Title: The Innovations of Charles Fearnley

Introduction

Charles Fearnley is a notable inventor based in Riehen, Switzerland. He has made significant contributions to the field of chemistry, particularly in the development of novel copolymeric ammonium salts. With a total of 8 patents to his name, Fearnley's work has had a considerable impact on cosmetic formulations.

Latest Patents

Fearnley's latest patents focus on quaternary, copolymeric, high molecular weight ammonium salts. These innovative compounds are designed to be soluble or form microemulsions in aqueous surfactant systems. They can be synthesized through water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt from the acrylic acid series, combined with at least one other acrylic comonomer. The resulting products exhibit a molecular weight distribution ranging from 10^4 to 10^9, with at least 5 percent by weight of the copolymer having a molecular weight between 10^7 and 10^9. These ammonium salts are particularly useful in cosmetics, especially hair care products, providing excellent ease of dry and wet combing.

Career Highlights

Charles Fearnley is associated with Ciba-Geigy Corporation, a company known for its innovative contributions to the chemical industry. His work has been instrumental in advancing the applications of polymer chemistry in consumer products.

Collaborations

Fearnley has collaborated with notable colleagues such as Dieter Strasilla and Hubert Meindl. Their combined expertise has contributed to the successful development of various innovative products.

Conclusion

Charles Fearnley's contributions to the field of chemistry and his innovative patents have significantly advanced the cosmetic industry. His work continues to influence the development of effective and user-friendly hair care products.