Fritz-Ulrich Kreis

Title: The Innovations of Fritz-Ulrich Kreis

Introduction

Fritz-Ulrich Kreis is a notable inventor based in Geinhausen, Germany. He has made significant contributions to the field of materials science, particularly in the development of silica granules and synthetic quartz glass powder. With a total of two patents to his name, his work has implications for various industrial applications.

Latest Patents

Kreis's latest patents include a method for producing porous silica granules and a method for producing synthetic quartz glass powder using these granules. The porous silica granule consists of individual granules that are approximately spherical in shape, with a pore volume of 0.5 cm, a mean diameter of pores of 50 nm or less, a specific surface area of 100 m/g or less, and a bulk density of 0.7 g/cm³ or higher. The production process involves dispersing fumed silica obtained from the hydrolysis of a silicon compound into pure water to create a slurry, which is then dried. The granule is essential for producing high-purity synthetic quartz glass powder, and the method includes multiple heat treatments under controlled atmospheres to ensure quality.

Career Highlights

Throughout his career, Fritz-Ulrich Kreis has worked with prominent companies such as Heraeus Quarzglas GmbH & Co. KG and Shin-Etsu Quartz Products Co., Ltd. His expertise in silica materials has positioned him as a key figure in the industry, contributing to advancements in material production techniques.

Collaborations

Kreis has collaborated with notable colleagues, including Klaus Arnold and Rainer Koeppler. Their combined efforts have furthered research and development in the field of silica and quartz materials.

Conclusion

Fritz-Ulrich Kreis's innovative work in the production of silica granules and synthetic quartz glass powder showcases his significant contributions to materials science. His patents reflect a commitment to advancing technology in this essential field.