Location History:
- St. Mang, DE (1976)
- Forchheim, DE (1981 - 1986)
Company Filing History:
2 out of 71 
2 out of 1,003 Years Active: 1976-1986
Title: Innovations of Walter Hufnagel: A Pioneer in Film Technology
Introduction
Walter Hufnagel, residing in Forchheim, Germany, has made significant contributions to the field of materials science, particularly in the development of thermoplastic films. With a portfolio of four patents, Hufnagel's innovations have advanced the manufacturing process and applications of biaxially oriented polypropylene films.
Latest Patents
One of Hufnagel's notable patents is an "Apparatus for the manufacture of biaxially stretched flat film." This invention outlines a sophisticated apparatus designed for fabricating biaxially stretched flat films from thermoplastic materials, focusing primarily on polypropylene. The innovative process involves a two-step stretching method where the material is first partially pre-stretched lengthwise, followed by simultaneous biaxial stretching. The apparatus includes adjustable stretching rollers that allow for variable speeds to influence the overall stretching degree of the film. Moreover, a system is incorporated to maintain the film at the optimal temperature for effective stretching, ensuring that biaxial stretching occurs uniformly in both the longitudinal and transverse directions.
Another key innovation by Hufnagel is the development of a "Simultaneously biaxially oriented, isotactic polypropylene film" designed to withstand dynamic stresses, particularly tensile forces in the longitudinal direction. This film achieves a surface stretch ratio of at least 1:45 and exhibits notable puncture resistance and elongation factors, making it ideal for a range of applications including packaging, multicolor printing, adhesive tapes, and as a substrate in laminates.
Career Highlights
Walter Hufnagel has had a remarkable career contributing to the advancement of film technologies. He has worked with prestigious companies such as the International Octrooi Maatschappij 'Octropa' B.V. and Lever Brothers Company. His experience at these organizations allowed him to hone his skills and collaborate on several significant innovations in polymer film production.
Collaborations
Throughout his career, Hufnagel has collaborated with talented individuals in the field, including Volker Graap and Rotger Armsen. These partnerships have fostered innovative approaches and led to the successful development of his patents, enhancing the capabilities and applications of thermoplastic films in various industries.
Conclusion
Walter Hufnagel's contributions to the field of materials science, particularly in the area of biaxially oriented polypropylene films, demonstrate his innovative spirit and dedication to advancing technology. With four patents to his name and impactful collaborations, Hufnagel has left a significant mark in the industry, paving the way for future advancements in film manufacturing and applications.
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.