Company Filing History:
Years Active: 1992-1994
Title: Johnny Chavez, Jr: Innovator in Hydroxy-Functional Polyethers
Introduction
Johnny Chavez, Jr. is a notable inventor based in Lake Jackson, TX (US). He has made significant contributions to the field of hydroxy-functional polyethers, holding a total of 2 patents. His work focuses on improving the properties and applications of these compounds.
Latest Patents
Chavez's latest patents include innovative processes aimed at reducing undesirable components in hydroxy-functional polyethers. One of his patents, titled "Purified Hydroxy-Functional Polyether Compounds," describes a method for reducing the concentration of propenyl ethers in a hydroxy-functional polyether. This process involves contacting the polyether with an acid ion exchange resin, which facilitates the conversion of propenyl ethers to propionaldehyde. The presence of water is crucial for this conversion, and the process may also include treatment with an epoxy compound to reduce the acidity of the polyol.
Another significant patent is "Process to Reduce Propenyl Polyethers in Hydroxyfunctional Polyethers." This patent outlines a method for decreasing the amount of propenyl polyethers in hydroxy-functional polyethers. The process includes several steps, such as contacting a neutral hydroxy-functional polyether with an acid catalyst and water, which converts a portion of the propenyl polyether to propionaldehyde. The subsequent steps involve scavenging the acid catalyst with an epoxy compound and stripping the product to remove the epoxy compound and propionaldehyde. The resulting hydroxy-functional polyethers are suitable for producing polyurethane foams with a reduced tendency to discoloration.
Career Highlights
Johnny Chavez, Jr. is currently employed at The Dow Chemical Company, where he continues to innovate in the field of polymer chemistry. His work has contributed to advancements in materials that are essential for various industrial applications.
Collaborations
Chavez collaborates with esteemed colleagues, including Raymond A Plepys and Van A Kent, who share his commitment to advancing chemical processes and materials.
Conclusion
Johnny Chavez, Jr. is a prominent inventor whose work in hydroxy-functional polyethers has led to significant advancements in the field. His innovative patents and contributions to The Dow Chemical Company highlight his dedication to improving material properties and applications.