Synthetic polymer propellant systems

Details Synthetic polymer propellant systems Synthetic polymer propellant systems

1988-08-08

1991-02-26

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 79, 521 88, 521149, 521910, 521 65, 424 81, 524378, 524394, 524441, 524447, 524464, C08J 900

Patent

active

049962400

ABSTRACT:
Compositions and a process for manufacture are provided for synthetic polymer-propellant systems that form cohesive foamed structures from which aqueous solutions can be expressed, where the useful temperature range over which these structures form is broadened by using a propellant mixture consisting predominantly of a propellant that is a poor solvent for the polymer and has a vapor pressure in the range of 10-35 psig at 20.degree. C. in combustion with a small amount of a propellant that is a good solvent for the polymer; and where these coherent foamed structures can be formed even with aqueous solutions containing 0 to about 30% alcohol, provided that insoluble fine-particle solids that do not pack and become difficult to redisperse are included in the composition.

REFERENCES:
patent: 4328319 (1982-05-01), Osipow et al.

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