David Chin

Title: Innovations of David Chin in Carbon Dioxide Absorption and Concrete Quality

Introduction

David Chin, an accomplished inventor based in Charlestown, MA, has made significant contributions to the fields of material science and environmental sustainability. With a total of two patents to his name, Chin's work focuses on the development of innovative solutions for carbon dioxide absorption and enhancing the quality of concrete masonry units.

Latest Patents

One of David Chin's latest inventions is a patent for a calcium hydroxide absorbent with a rheology modifier. This exemplary carbon dioxide absorbent composition incorporates calcium hydroxide, water, and a phosphonic acid or its salt. The mixture is processed into a paste and formed into particles that not only offer excellent carbon dioxide absorption performance but also possess impressive crush resistance and a beneficial pore structure when hardened.

Another noteworthy patent from Chin is for a masonry admixture and the method of preparing it. The additive consists of a single blend of an acid component and calcium stearate, which effectively controls both primary and secondary efflorescence in concrete, particularly in concrete masonry units such as pavers. His preferred method involves partially saponifying tall oil fatty acid with calcium hydroxide and adding calcium stearate dispersion to create a stable emulsion blend. An alternative method also includes mixing potassium hydroxide with calcium stearate dispersion, introducing it into tall oil fatty acid to provide a non-emulsion blend.

Career Highlights

Throughout his career, David Chin has been an integral part of W.R. Grace & Co. (Conn.), a company known for its innovative products and solutions in specialty chemicals and materials. His innovative approach and technical expertise have contributed to the company's reputation in the industry.

Collaborations

In his endeavors, Chin has collaborated with talented coworkers, including Craig T. Walloch and Cynthia Louise Ebner. Together, they have worked towards advancing technologies that address critical challenges in construction materials and environmental issues.

Conclusion

David Chin's inventions demonstrate a profound understanding of advanced materials and their application in real-world scenarios. Through his patents, he not only contributes to improving concrete quality but also aids in addressing environmental concerns related to carbon dioxide emissions. His work at W.R. Grace & Co. highlights the importance of innovation in developing sustainable solutions for the future.