Company Filing History:
3 out of 167 
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Years Active: 1977-1984
Title: The Innovative Contributions of William D Vanderwerff
Introduction
William D Vanderwerff is a notable inventor based in West Chester, PA (US). He has made significant contributions to the field of chemical engineering, particularly in the development of novel plasticizing compositions. With a total of 5 patents to his name, Vanderwerff's work has had a lasting impact on the industry.
Latest Patents
Vanderwerff's latest patents include a process for making naphthalene hydrodimer mixtures and a product mixture that enhances plasticizing properties. The first patent describes a novel process for creating naphthalene hydrodimer mixtures containing phenyltetralylbutane (PTB) in varying amounts. This process improves the plasticizing properties over PTB alone. The improved composition is prepared by contacting a mixture of hydronaphthalene, such as tetralin or an alkyltetralin, with naphthalene or an alkylnaphthalene using a strong acid catalyst. Another significant patent involves the use of PTB as a plasticizer for polyvinylchloride (PVC) resins. In this embodiment, PTB is prepared by refluxing tetralin and flowing condensed vapors over a bed of strongly acidic catalyst, such as a synthetic acid 'Y' type zeolite. PTB can serve as a secondary plasticizer alongside a primary plasticizer like di(2-ethyl)hexyl phthalate.
Career Highlights
Throughout his career, Vanderwerff has worked with several companies, including Suntech, Inc. and Sun Ventures, Inc. His innovative approaches and dedication to research have positioned him as a key figure in the development of advanced plasticizing technologies.
Collaborations
Vanderwerff has collaborated with notable professionals in the field, including Edward M Kohn and Allen W Hancock, II. These collaborations have further enriched his work and contributed to the advancement of chemical engineering.
Conclusion
William D Vanderwerff's contributions to the field of chemical engineering through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements in plasticizing technologies.