|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||264/31 ; 149/1096 ; 102/289 ; 102/290|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 6|
Solid propellant test strands are inhibited, i.e., prevented from burning in an uncontrolled fashion, by coating the strands with a liquid composition containing a partially cured phenolformaldehyde in a volatile solvent, then volatizing the solvent.
A method for inhibiting the surface of a solid propellant grain which consists of the steps of: (a) providing a solid propellant grain: (b) providing a solution consisting essentially of a partially cured phenol-formaldehyde resin in a volatile solvent; (c) coating the surface of said grain with a layer of said solution; and (d) evaporating said solvent at a temperature below the curing temperature of said resin.