Location History:
- Upper Dublin, PA (US) (2008 - 2012)
- Maple Glen, PA (US) (2006 - 2016)
Company Filing History:
3 out of 1,197 
2 out of 1,005 
1 out of 451 
Years Active: 2006-2016
Title: Celebrating the Innovations of Inventor Shi-Jun Yang
Introduction
Shi-Jun Yang, located in Maple Glen, Pennsylvania, is a notable inventor with a remarkable portfolio of seven patents. Her contributions to the field of polymer chemistry, particularly in latex compositions, have garnered attention for their innovative applications in paint technology.
Latest Patents
Among Yang's latest inventions are two significant patents focused on innovative latex compositions. The first patent, titled "Hydroxyethyl Cellulose Grafted Acrylic Latex," describes a unique formulation comprising hydroxyethyl cellulose grafted acrylic polymer emulsions. This innovative latex composition boasts at least 0.2% of hydroxyethyl cellulose by weight relative to the monomer weight, achieving solid content above 45% and an average mean volume particle size of 320 to 850 nm. The paint compositions derived from this latex showcase exceptional viscosity and stability, avoiding color flow and syneresis, which are common issues in traditional paints.
The second patent, "Ambient Self-Crosslinkable Latex," presents a method for creating storage-stable film-forming latex particles that crosslink under ambient conditions. The incorporation of monomers such as diacetone acrylamide (DAAM) and methacrylamide (MAM), alongside a potential crosslinking agent like adipic acid dihydrazide (ADH), enhances the durability and performance of the resulting paint compositions.
Career Highlights
Shi-Jun Yang has made significant strides in her career, working with prominent companies such as Arkema and Columbia Insurance Company. These experiences have provided her with a solid foundation in the application of her inventions within industry settings, further propelling her innovative efforts in polymer and latex technology.
Collaborations
Throughout her career, Yang has collaborated with esteemed professionals, including Gary Dandreaux and Robert J. Sheerin. These collaborations have been instrumental in refining her inventions and ensuring their practicality and effectiveness in real-world applications.
Conclusion
With her inventive spirit and dedication to advancing latex compositions, Shi-Jun Yang continues to make a significant impact in the field of polymer chemistry. Her innovative patents not only enhance the quality of paint compositions but also reflect her commitment to addressing industry challenges through scientific innovation.