. >> dupont promised a future thai was stain free, wrinkle-free, stick-free, silk-like, wool- like, water repellant, heat retardant, lightweight and really flexible. >> susie: the company now focuses on less glamorous products. products to feed a growing population, reduce dependence on fossil-fuels. and protect crops, people and the environment. dupont's mantra is sustainability. what does that mean? >> it's really that progression towards more sustainable products, products that last; towards products that have less of an impact on the environment. >> susie: so dupont is green. is that what you're saying? >> dupont is-- understands green and is moving to green. >> susie: kullman grew up in dupont country. she was born and raised in wilmington. she attended the tower hill school. at five feet, nine inches, she played center on the high school basketball team, and was co- captain. patty marshall was her coach. >> back when she was in high school she was very self- assured. we ran a very competitive program, and she was very competitive. and, i imagine still is, or she wouldn't be where sh