Mo. 48 Celanese, Bishop, Tex.
Commercial production is from formaldehyde and acetaldehyde.
Mono- and technical materials account for an estimated 85 to 90 percent of US sales. Hercules produces di- and tripentaerythritol as purified coproducts. Those are the optimal base stocks for use in chlorofluorocarbon-replacement refrigerants. Pentaerythritol's other applications are growing at GDP rates, except for neopolyol esters, as noted above. Consequently, overall growth is projected at 1.3 percent annually for the next four years.