Company Filing History:
4 out of 11 
2 out of 832,891 Years Active: 1976-1981
Title: The Innovative Contributions of David Lester
Introduction
David Lester is a notable inventor based in Arlington, MA (US), recognized for his significant contributions to the field of polymer chemistry. With a total of six patents to his name, he has developed innovative solutions that enhance the functionality and application of various materials.
Latest Patents
Among his latest patents is the "Pigment Agglomerate Coloring System." This system is designed for temporarily or permanently dyeing fibers by utilizing polyhydric alcohols to soften starch and cellulose derivatives in an organic acid solution. The process involves mixing hydrophobic pigment particles with glycolate modified derivatives, resulting in a water-removable temporary dye system that can be converted into a permanent dye by adding a latex suspension. Another significant patent is for a "High Molecular Weight Vinyl Acrylic Combined with Low Molecular Weight." This invention features an unsupported decorative film of a polymeric composition that has controlled permanent tack. The blend consists of 86 to 88% of a polyvinyl acetate-acrylic copolymer of high molecular weight and low residual tack, along with 12 to 14% of a polyvinyl acetate-maleate copolymer of low molecular weight and high residual tack. This film adheres to most surfaces and can be forcefully removed and relocated, making it ideal for decorative art pieces.
Career Highlights
David has worked with various companies throughout his career, including Polymerics GmbH. His work has focused on developing innovative materials that push the boundaries of traditional applications.
Collaborations
Throughout his career, David has collaborated with notable individuals such as Robert R. Alexander and Norman Bernard Morse. These collaborations have contributed to the advancement of his inventions and the development of new technologies.
Conclusion
David Lester's innovative work in polymer chemistry and his six patents reflect his commitment to advancing material science. His contributions have the potential to impact various industries, showcasing the importance of creativity and innovation in technology.