Solid propellant binder and propellant

Details Solid propellant binder and propellant Solid propellant binder and propellant

1961-09-07

1976-05-18

Feinberg, Samuel

Power plants

Reaction motor

Method of operation

149 194, 149 76, 1491082, C06D 500

Patent

active

039568903

ABSTRACT:
1. A solid polyurethane propellant binder composition which comprises a polyurethane composition comprising the reaction product of nitrocellulose plasticized with a plasticizer selected from the group consisting of nitroglycerin and triethyleneglycol dinitrate, an aromatic diisocyanate and a polyol having a molecular weight of about 500 to 3,000 selected from the group consisting of dicarboxylic acid-polyol-polyesters and polyoxyalkylene ethers, and mixtures thereof, wherein said plasticizer is present in the proportion of about 40 to 60 parts by weight per 100 parts by weight of binder composition, wherein said nitrocellulose contains about 11.0 to 13.0% nitrogen and is present in the proportion of about 0.7 to 1.0 part per part of said polyol, and wherein said diisocyanate is present in an amount to provide an NCO/OH ratio of said diisocyanate to said polyol of about 1.2/1 to 3.0/1.

REFERENCES:
patent: 3002830 (1961-10-01), Barr
Missiles & Rockets, Vol. 5, No. 18, May 4, 1959, p. 11.

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