Company Filing History:

26 out of 10,754

Basf Aktiengesellschaft

Years Active: 1985-1997

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27 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5700358 - Recovery of caprolactam from oligomers and/or polymers of caprolactam (1997-12-23),

2. 5693793 - Preparation of caprolactam from 6-aminocapronitrile (1997-12-02),

3. 5536831 - Obtaining caprolactam by cleavage of molten polycaprolactam (1996-07-16),

4. 5496941 - Process for continuous purification of crude caprolactam prepared from (1996-03-05),

5. 5458740 - Process for the purification of crude caprolactam (1995-10-17),

6. 5441607 - Recovery of caprolactam from distillation residues obtained in the (1995-08-15),

7. 5360905 - Recovery of caprolactam from oligomers and/or polymers of caprolactam (1994-11-01),

8. 5359062 - Recovery of caprolactam from polycaprolactam (1994-10-25),

9. 5264571 - Preparation of caprolactam by Beckmann rearrangement of cyclohexanone (1993-11-23),

10. 5236685 - Preparation of hydroxylammonium salts (1993-08-17),

11. 5155081 - Platinum-on-graphite catalysts (1992-10-13),

12. 5124138 - Work-up of aqueous mother liquors containing hydrochloric acid, sulfuric (1992-06-23),

13. 5120699 - Platinum-on-graphite catalysts and the use thereof (1992-06-09),

14. 5032684 - Continuous purification of caprolactam (1991-07-16),

15. 4997635 - Preparation of crystalline hydroxylammonium sulfate having a low (1991-03-05),

Title: **Innovative Contributions of Josef Ritz in Caprolactam Recovery**

Introduction

Josef Ritz, a prominent inventor hailing from Ludwigshafen, Germany, has made significant strides in the field of polymer chemistry. With a remarkable portfolio of 27 patents, his innovative work focuses primarily on the recovery and preparation of caprolactam, a crucial compound in the production of nylon and other polymers.

Latest Patents

Among Josef Ritz's latest patents is a groundbreaking process for the recovery of caprolactam from oligomers and/or polymers of caprolactam. This innovative method involves the cleavage of these oligomers and/or polymers, followed by the distillation of the caprolactam obtained, enhancing the efficiency of resource recovery. Another noteworthy patent pertains to the preparation of caprolactam from 6-aminocapronitrile, achieved through cyclization in the presence of water at elevated temperatures, with or without a catalyst and solvent. These contributions reflect Ritz's dedication to advancing chemical processes in a sustainable manner.

Career Highlights

Throughout his career, Josef Ritz has worked with notable companies such as BASF Aktiengesellschaft and BASF Corporation. His tenure at these organizations has allowed him to develop and refine his innovative techniques, leading to the patenting of his valuable discoveries.

Collaborations

Josef Ritz's innovative journey has been bolstered by collaborations with esteemed colleagues, including Hugo Fuchs and Franz-Josef Weiss. Their combined expertise has facilitated creative environments that foster groundbreaking developments in polymer research.

Conclusion

Josef Ritz's contributions to the field of polymer chemistry, particularly in the recovery and preparation of caprolactam, demonstrate his commitment to innovation and sustainability. With 27 patents to his name, Ritz stands as a vital figure in the landscape of modern chemical engineering, continually pushing the boundaries of what is possible in materials science.

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