Fecha de publicación: 08/03/1977 Fuente: WIPO "pollen" Heating a solution of ethyl cellulose in n-butyl acetate and ethyl lactate t about 80.degree.-110.degree. C for at least one hour provides a viscosity stabilized solution useful as a deterrent coating for propellant actuated devices. -GOVT PAR The invention described herein may be manufactured, used and licensed by or for the Government for governmental purposes without the payment to us of any royalty thereon.