William J Ristey

Title: The Innovations of William J Ristey

Introduction

William J Ristey is a notable inventor based in Berwyn, PA (US). He has made significant contributions to the field of polymer technology, particularly in the development of shrink films. His innovative approach has led to advancements that are widely applicable in various industries.

Latest Patents

William J Ristey holds a patent for "Shrink films and articles including the same." This patent describes a shrink film made from a biaxially oriented polymer film comprising polypropylene. The film features a machine direction shrinkage greater than 15% and a transverse direction shrinkage of less than 10% at approximately 140°C. The process involves heating the film to a temperature between 100°C and 180°C, followed by drawing the film to extend it by at least 1.05 times its original length in the machine direction. The resulting shrink film is suitable for wrapping contoured articles and has a kinetic film-to-film coefficient of friction ranging from about 0.05 to 0.40.

Career Highlights

William J Ristey is associated with Applied Extrusion Technologies, Inc., where he has been instrumental in advancing the company's product offerings. His expertise in polymer films has positioned him as a key player in the industry.

Collaborations

Some of his notable coworkers include William J Hill, Iv and Harry S Anderson. Their collaborative efforts have contributed to the success of various projects within the company.

Conclusion

William J Ristey's innovative work in the field of shrink films exemplifies the impact of dedicated inventors on modern technology. His contributions continue to influence the industry and pave the way for future advancements.