This inventor holds 2 USPTO granted patents. Top assignee: The Dow Chemical Company. Active years: 1976-1978.
Company Filing History:
Years Active: 1976-1978
Title: Innovations of Robert D Vandell
Introduction
Robert D Vandell is a notable inventor based in Midland, MI (US). He has made significant contributions to the field of chemical engineering, particularly in the development of cement additives and colloidally stable dispersions. With a total of 2 patents, his work has had a substantial impact on construction materials and coatings.
Latest Patents
One of Vandell's latest patents is focused on styrene-butadiene interpolymer latex based cement additives. This invention is directed to cement additives that consist essentially of a styrene-butadiene interpolymer latex, a nonionic surfactant, a polyelectrolyte obtained by copolymerizing methylmethacrylate and a sulfoester of .alpha.-methylene carboxylic acid or its salt, and a polyorganosiloxane foam depressant. These additives provide Portland cement compositions with excellent strength properties, workability, and adhesion to cementitious substrates.
Another significant patent by Vandell involves colloidally stable dispersions. This invention is directed to dispersions containing stabilizing amounts of certain substantially linear interpolymeric interfacially spreading polyelectrolytes. These polyelectrolytes are composed of a mixture of nonionic hydrophobic units and ionic hydrophilic units, where the nonionic units are randomly distributed in the backbone of the polyelectrolyte. The stabilized dispersions are particularly useful as coating compositions and for the preparation of microspheres and seed latexes.
Career Highlights
Robert D Vandell is associated with The Dow Chemical Company, where he has been instrumental in advancing innovative solutions in chemical applications. His expertise in polymer chemistry and material science has led to the development of products that enhance the performance of construction materials.
Collaborations
Vandell has collaborated with notable colleagues such as Dale S Gibbs and Ritchie A Wessling. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Robert D Vandell's contributions to the field of chemical engineering through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of advanced materials in the construction industry.