Company Filing History:

8 out of 6,850

Ciba-geigy Corporation

patents

1 out of 595

Ciba-geigy Ag

patents

Years Active: 1976-1992

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5112930 - Modified polyurethanes containing perfluoroaliphatic groups and use (1992-05-12),

2. 5019428 - Modified polyurethanes containing perfluoroaliphatic groups and use (1991-05-28),

3. 4834764 - Process for obtaining wash-and cleaning resistant textile finishes with (1989-05-30),

4. 4477498 - Process for the production of perfluoroalkyl residue containing (1984-10-16),

5. 4433027 - Process for finishing textiles with alkoxylation products, and (1984-02-21),

6. 4153640 - Modified polysiloxanes and process of preparing them (1979-05-08),

7. 4128675 - Process for treating textiles with reactive polymers (1978-12-05),

8. 4004059 - Method to make fibrous material oil and water repellent at the same time (1977-01-18),

9. 3949136 - Fluorine-containing organopolysiloxanes, process for their use (1976-04-06),

Title: Bernhard Sandner: Innovator in Polyurethane Technology

Introduction

Bernhard Sandner was a notable inventor, recognized for his significant contributions in the field of polyurethanes. Residing in Diedorf, Germany, he held a total of nine patents, demonstrating a remarkable talent for innovation throughout his career. His work primarily focused on enhancing material properties for various applications.

Latest Patents

Among Sandner's latest innovations are his patents on modified polyurethanes containing perfluoroaliphatic groups. These patents describe a unique process of reacting oligo(poly)urethanes with di/polyfunctional polysiloxanes at elevated temperatures. The resulting materials are utilized for oil- and water-repellent finishing of fiber materials. Such treatments not only impart laundering and dry-cleaning stability but also enhance the tactile properties of the materials, providing them with a soft, smooth finish. Additional optimization is achieved through the inclusion of polyethylene dispersion and other textile additives, particularly water-repellent fluorocarbon compounds.

Career Highlights

Throughout his esteemed career, Bernhard Sandner worked with prominent companies such as Ciba-Geigy Corporation and Ciba-Geigy AG. His endeavors in these organizations helped shape advancements in materials science, particularly in textile applications. His expertise in polyurethane technology has made a lasting impact on various industrial sectors.

Collaborations

Sandner collaborated with notable colleagues, including Hans Deiner and Willy Bernheim. Their collective efforts contributed to the development and refinement of innovative solutions in the domain of polymer chemistry, further solidifying the importance of teamwork in advancing technological applications.

Conclusion

Bernhard Sandner's legacy as an inventor and innovator in the field of modified polyurethanes illustrates the significant role that dedicated professionals play in advancing material science. His patents remain a testament to the ingenuity and creativity that drive the industry forward, influencing innovations that benefit various sectors and applications. Sandner's work continues to inspire future inventors and researchers in the ever-evolving landscape of technology.

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