contacting dissolving grade cellulose with an acetylating catalyst and acetylating solvent to produce a mixture, wherein the catalyst is uniformly distributed throughout {HEAD ~ the mixture}, wherein {TAIL ~ the amount} of acetylating catalyst is from 0.5 to 5 weight parts per 100 weight parts cellulose, to produce a cellulose activate; and 
wherein
contacting dissolving grade cellulose with an acetylating catalyst and acetylating solvent to produce a mixture , wherein the catalyst is uniformly distributed throughout { HEAD ~ the mixture } , wherein { TAIL ~ the amount } of acetylating catalyst is from 0.5 to 5 weight parts per 100 weight parts cellulose , to produce a cellulose activate ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH