DuPont delivered a solid set of quarterly results in a challenging environment. The company managed an all-around beat as the customer demand remained strong in the end markets. E&I delivered a volume increase that is driven by ongoing strength in industrial solutions and semiconductor technologies. The Roger acquisition also made great progress and DuPont is supposed to close the deal in the next quarter. DuPont is also moving forward with its plans of divesting the Delrin business. The company ....