This inventor holds 3 USPTO granted patents and 2 published patent applications. Top assignees: Tenneco Protective Packaging, Inc., Other. Active years: 1999-2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 9 
2 out of 834,570 Years Active: 1999-2007
Title: The Innovative Contributions of James L. Zwynenburg
Introduction
James L. Zwynenburg, an inventive mind based in Queensbury, NY, has made significant strides in the field of polymer science. With three patents to his name, his work primarily focuses on creating advanced polymeric compositions that enhance the production of low-density foams.
Latest Patents
Zwynenburg's most recent innovations include a patent for a low-density polymeric foam using a three-polymer blend. This inventive composition comprises high-density polyethylene, alkenyl aromatic polymer, and linear low-density polyethylene. Notably, the polymeric resins can consist of prime virgin resin, offgrade virgin resin, recycled resin from post-industrial sources, or blends thereof. These compositions are characterized by Dynamic Mechanical Spectroscopy, exhibiting a complex viscosity in the range of 6.0×10 to 2.5×10 poise and a loss tangent between 0.7 to 2.1 at temperatures around 190°C.
Another significant patent involves a foamable composition using recycled or offgrade polypropylene. This polymeric composition is designed for producing foam, comprising conventional linear polypropylene, high melt strength polypropylene, and a rheology modifier resin. The proportions of these materials are meticulously calculated to ensure optimal performance, with the conventional linear polypropylene making up 1 to 25 weight percent of the polymeric composition, and high melt strength polypropylene from about 51 to 85 weight percent.
Career Highlights
Throughout his career, Zwynenburg has taken on roles at companies like Tenneco Protective Packaging, Inc. His work at these firms highlights his commitment to advancing polymer technology and developing innovative solutions to industry challenges.
Collaborations
In his endeavors, Zwynenburg has collaborated with esteemed colleagues such as Gary R. Wilkes and Kim A. Bly. These partnerships have undoubtedly spurred creative ideas and fostered advancements in the field of polymer science.
Conclusion
James L. Zwynenburg's inventive contributions to polymeric compositions illustrate his dedication to innovation. His patents not only reflect his expertise in the field but also his vision for creating sustainable and effective materials for the future. Through his work, he continues to push the boundaries of polymer technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile