Location History:
- Renkum, NL (1980 - 1982)
- Wolfheze, NL (1989)
Company Filing History:
Years Active: 1980-1989
Title: Innovations by Stephanus A De Graaf
Introduction
Stephanus A De Graaf is a notable inventor based in Renkum, Netherlands. He has made significant contributions to various fields through his inventive breakthroughs, holding a total of five patents. De Graaf's work highlights the importance of innovation in material development and flame retardancy.
Latest Patents
One of his latest patents is focused on composite matting with reinforcement. This innovative composite matting features a unique peak-and-valley structure combined with a reinforcement system that includes glass, aramide, silica, metal, or synthetic polymer filaments and ribbons. This design serves as a supporting base for wall coatings, preventing shape changes or limiting deformation based on predetermined mass to control the thickness of the composite matting.
Additionally, De Graaf has developed a polyethylene terephthalate molding composition with improved flame retardancy. This composition enhances safety by incorporating a salt of oxalic acid along with polytetrafluoroethylene, allowing it to be effectively used in creating molded objects through injection molding. The precise formulation contains between 5-15% by weight of the oxalic acid salt and 0.1-0.5% by weight of polytetrafluoroethylene, which together optimize the flame resistance of the material.
Career Highlights
Throughout his career, Stephanus A De Graaf has been affiliated with respected organizations, including AkzoNobel. His work with this leading company reflects his commitment to advancing material sciences and addressing industry challenges through innovative solutions.
Collaborations
De Graaf has collaborated with notable professionals such as Gerrit Hoentjen and Albert H Bijkerk. These partnerships emphasize the importance of teamwork in achieving significant advancements in technology and materials.
Conclusion
Stephanus A De Graaf's contributions through his patents showcase his role as an influential inventor in the fields of composite materials and flame retardancy. His innovative spirit continues to inspire advancements in manufacturing and safety, underscoring the vital connection between research and practical applications in various industries.
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.