2GRAHAM William Hardin, SHEPARD In- ella Gatlin. Hydroxy terminated polybutadiene based polyurethane bound propellant grains: US4098626[P]. 1978-07-04.
3GRAHAM Willian H, BEVEL Kenneth E, BYRD James D, et al. Process for forming a liner and cast propellant charge in arocket motor casing: US4803019[P]. 1989-02-07.
4DUCOTE Marjorie E. TMXDI, curing agent for hydroxy terminated propellant binders: US4913753[P]. 1990-04-03.
5GRAHAM William Hardin, SHEPARD Inella Gatlin. Control of cure rate of polyurethane resin based propellants: US4110135[P]. 1978-08-29.
6CUCKSEE Marjorie T, ALLEN Henry C. Bond- ing agent system for improved propellant ag- ing and low temperature physical properties: US4090893[P]. 1978-05-23.
7DUCOTE Marjorie E. Maleic anhydride adjunct to triphenylbismuthine to improve mechanical prop- erties of hydroxy terminated binders: USH934[P]. 1991-07-02.
8DUCOTE:Marjorie E. Prevention of unwanted cure catalysis in isocyanate cured binders: US4597811 [P]. 1986-07-01.
9WARREN Larry C. Processing procedure for iso- cyanate cured propellants containing some bis- muth compounds: US6183574[P]. 2001-02-06.
10MASTROLIA Edmund J, MICHIGIAN Harry. Processing aids for hydroxy-terminated polybuta- diene propellant: US3801385[P]. 1974-04-02.