Erwin Weinrich

Title: Erwin Weinrich: Innovator in Hair Dye Technology

Introduction

Erwin Weinrich is a notable inventor based in Haan, Germany. He has made significant contributions to the field of hair dye technology, holding 2 patents that showcase his innovative approach to hair coloring solutions.

Latest Patents

Weinrich's latest patents include the development of hair dyes based on triamino-pyrimidinones. These water-soluble substituted and unsubstituted triamino pyrimidinones are effective dyes for hair when oxidized in conjunction with a coupling agent. The oxidation process can be performed at an alkaline pH at room temperature with air, providing long-lasting and light-fast dyeings over a broad color range. Another significant patent involves oxidation hair dyes based on tetraaminopyrimidine developers. This aqueous hair dye preparation comprises an oxidation dyestuff combination of a coupling component and a developer component consisting of a tetraaminopyrimidine derivative or a water-soluble acid addition salt thereof. The process for dyeing hair utilizes this oxidation dyestuff combination effectively.

Career Highlights

Erwin Weinrich is associated with Henkel & Cie G.m.b.h., a leading company in the consumer goods sector. His work at Henkel has allowed him to explore and innovate in the realm of hair care products, particularly in the development of advanced hair dye formulations.

Collaborations

Weinrich has collaborated with notable coworkers such as Hans Peter Kubersky and David Rose. Their combined expertise has contributed to the successful development of innovative hair dye technologies.

Conclusion

Erwin Weinrich's contributions to hair dye technology through his patents reflect his commitment to innovation in the beauty industry. His work continues to influence the effectiveness and quality of hair coloring products available today.