Patsy Sherman, a pioneering scientist at 3M Co. and the co-inventor of the original Scotchgard fabric protector, died Monday after a brief illness. She was 77. “She always had a great interest in ...

Q: Scotchgard contains perfluorochemicals, which have been in the news. I have Scotchgard on my children’s mattresses. Can they safely sleep on these? A: It’s probably safe to sleep on a mattress that ...

While experts argue the efficacy of building America’s space-based Strategic Defense Initiative, here on Earth one of the nation’s most trusted defense systems will, by year’s end, be dismantled.