Company Filing History:
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Years Active: 1989-1992
Title: Anton Hruschka: Innovator in Pulp Bleaching Technologies
Introduction
Anton Hruschka is a notable inventor based in Vienna, Austria. He has made significant contributions to the field of pulp bleaching, holding a total of 2 patents. His innovative methods focus on improving the efficiency and environmental impact of pulp processing.
Latest Patents
Hruschka's latest patents include a chlorine-free bleaching method for dissolving-grade pulps. This method employs a three-stage bleaching process utilizing the sequence OP(alkaline)-Z-P. The off gas from the Z-stage is delivered to the alkaline (OP)-stage, where parameters are controlled to ensure complete reaction of all oxygen from the off gas. Additionally, the filtrate or wastewater from the Z-stage, at a pH below 3, is used to dilute the alkaline OP-stage pulp before Z-stage bleaching and/or for de-ashing of the P pulp following the P-stage. Another significant patent is a method for delignification of cellulose with oxygen. This method involves forming an aqueous slurry of chemical pulp, mixing it with a caustic agent, and then contacting it with a delignifying fluid. The slurry is drained without pressure reduction while maintaining temperature, followed by a discrete period under these conditions before washing the treated slurry.
Career Highlights
Throughout his career, Anton Hruschka has worked with prominent companies such as Waagner-Biro Aktiengesellschaft and Steyrermühl Papierfabriks- und Verlags-Aktiengesellschaft. His work has significantly advanced the field of pulp processing and has contributed to more sustainable practices in the industry.
Collaborations
Hruschka has collaborated with notable professionals in his field, including Heinz Loquenz and Siegfried Meissl. These collaborations have further enriched his work and innovations in pulp bleaching technologies.
Conclusion
Anton Hruschka's contributions to the pulp industry through his innovative patents and collaborations highlight his role as a key figure in advancing sustainable practices. His work continues to influence the field and pave the way for future innovations.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.