|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||149/194 ; 149/1992|
|발명자 / 주소|
|인용정보||피인용 횟수 : 11 인용 특허 : 10|
An effective neutral polymeric bonding agent (NPBA) is disclosed for a polar filler such as crystals of a nitramine (HMX or RDX, for example) dispersed in a polar binder, such as energetic binders containing nitro- and nitrato-plasticizers. The exceptional strength of the propellant composite of this invention is derived from a NPBA tailored to conform to criteria found to take advantage of the surface and absorption properties of the system so as to inculcate such strength. In particular, an interpolymer of acrylonitrile, methylacrylate and hydroxyethyl...
A filler-reinforced propellant composite comprising, (A) a binder matrix of polyurethane derived from a OH-terminated prepolymer and a polyfunctional isocyanate curing agent, (B) a polar plasticizer, (C) polar filler particles essentially insoluble in said binder matrix, said particles being in a size range large enough to benefit from interfacial bonding, (D) non-nitrocellulosic neutral polymeric bonding agent, NPBA, free of amine and acid groups, having a pH in the range from 5.5 to 8.5, a molecular weight in the range from about 3000 to about 500,000 ...