Polymer scientist Lin Feng helps develop impactful Eastman products

In high school, Lin Feng had no clue what polymers were. Now, she oversees a team of scientists who develop new project segments for innovative products using polymers, including electronics, biodegradable materials, inks, flexible packaging materials and industrial coatings.

She played a crucial role in the research and development of notable Eastman products such as Tetrashield™ protective resin systems. Feng's contributions to the field of polymer science have been recognized with the 2023 Technology Rising Star Award for Women of Color in STEM. She holds a doctorate in materials science from the University of Cincinnati. 

Here are Feng's answers to a few questions about her career in STEM. 

What motivated you to pursue a career in STEM, specifically in polymers? 

The truth is, I didn't know what polymer meant at all. During my high school years in China, I chose to major in polymers because it was popular. Looking back, there were better ways to make that decision. That's why I recommend people connect with professionals in the field to have more information earlier on in their own careers. I consider myself lucky. I ended up enjoying the learning and innovation that I could contribute to the STEM field.  

What has been your favorite project so far? 

My favorite project is the development of Tetrashield resins to replace bisphenol A (BPA) in metal packaging coatings inside food and beverage cans. These coatings are crucial for preventing food from coming into direct contact with the metal, which can cause corrosion and other issues. Today, BPA is a material of concern. Regulations and consumer preferences are reshaping the food packaging industry by reducing or eliminating BPA-containing resins. Our goal was to deliver a safer, healthier and more sustainable choice to feed the world's growing population. 

We aim to be socially responsible, especially in terms of human health and wellness. By introducing this solution, we have the chance to make a positive impact.   Not only does this project have significant business potential, but it also enables us to address health concerns and ensure food safety in packaging. I take great pride in working on such an important and impactful project. 

You received the Technology Rising Star Award for Women of Color presented to women who have made significant contributions in STEM. What work did you do to get this award?  

I received an award for leading our team's work on Tetrashield. The core technology is based on 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD), a unique monomer used in the creation of Eastman Tritan™. We used the exceptional performance attributes of TMCD to develop Tetrashield to fulfill unmet needs from relevant markets.

My team has developed over 10 Tetrashield products, covering diverse coating applications from food and beverage cans to industrial, powder and automotive coatings. These products have been successfully commercialized, each providing distinct value in their respective applications.

What does the award mean to you?  

In the workplace, there is often talk of a "glass ceiling," but for many minorities in STEM, it can feel more like a "concrete ceiling" because it lacks transparency and diversity. Career progression can be challenging when there is a lack of visible role models to look up to. Without someone to follow, it's hard to gain confidence and see ourselves in similar positions in the future.

I was thrilled to attend the Women of Color STEM. Women are already a minority in this field, and women of color face even more obstacles. I appreciate the conference for acknowledging my contributions and the contributions of others. It's inspiring to witness how women of color can make noteworthy contributions and receive full recognition. Feeling confident, valued and appreciated is vital for job satisfaction and overall success.

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