This inventor holds 4 USPTO granted patents. Top assignees: Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, Henkel & Cie G.m.b.h., Henkel Ag & Company, Kgaa. Active years: 1977-1980.
Company Filing History:
4 out of 343 
2 out of 106 
1 out of 4,534 
Years Active: 1977-1980
Title: Erfried Parr: Innovator in Aluminum Silicates
Introduction
Erfried Parr is a notable inventor based in Rodenbach, Germany. He has made significant contributions to the field of materials science, particularly in the development of aluminum silicates. With a total of 4 patents to his name, Parr's work has had a considerable impact on various industrial applications.
Latest Patents
One of Parr's latest patents is a process for the production of aluminum silicates, specifically an alkali aluminum silicate that serves as a zeolitic molecular sieve powder. This innovative product has an average particle diameter of less than 10 micrometers, with less than 1 weight percent of particles exceeding 45 micrometers. The process involves hydrothermal crystallization of an alkali aluminate-silicate mixture, followed by the separation of the crystallization product from the mother liquor and drying. The aqueous medium surrounding the crystallization product is adjusted to a pH value between 8.5 and 11 prior to drying. This product is particularly useful as an ion exchanger in dehardening water and serves as a phosphate substitute in washing, rinsing, and cleansing agents.
Another significant patent by Parr involves ion-exchanging aluminum silicates with hydrophilic surfaces. This innovation includes alkali aluminum silicates that are prepared by mixing a crystalline, ion-exchanging alkali aluminum silicate with a hydrophilic material, such as ortho-phosphoric acid or an alkali ortho phosphate. This development enhances the functionality of aluminum silicates in various applications.
Career Highlights
Throughout his career, Erfried Parr has worked with prominent companies, including Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler and Henkel & Cie GmbH. His experience in these organizations has contributed to his expertise in the field of materials science and innovation.
Collaborations
Parr has collaborated with notable colleagues, including Wolfgang Roebke and Dieter Kneitel. These partnerships have likely fostered a creative environment that has led to the development of his innovative patents.
Conclusion
Erfried Parr's contributions to the field of aluminum silicates demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials science and its applications in industry. Through his work, Parr continues to influence the development of advanced materials that serve