Long unsaturated aliphatic chains as stabilisers for nitrate esters and nitrocellulose-based applications
AssigneePb Clermont SA
InventorsAlain Dejeaifve, Rowan Dobson
Life of this patent
Estimating the term…
Abstract
A nitrocellulose-based composition for use as a propellant or as a combustible item is provided. The nitrocellulose-based composition includes a nitrate ester-based component including nitrocellulose; and a stabiliser (I) in the form of a long aliphatic chain having at least two unsaturation sites, the compound having a molecular weight of at least (120) and an iodine number of at least (25).
Claims20
A nitrocellulose-based composition for use as propellant or as combustible item, said nitrocellulose-based composition comprising:
- (a) a nitrate ester-based component comprising nitrocellulose;
- and
- (b) a stabiliser (I) in the form of a long aliphatic chain having at least two unsaturation sites, the compound having a molecular weight of at least 120 and an iodine number of at least 25.
The nitrocellulose-based composition according to claim 5, wherein the stabiliser is selected froth one or more of the following components and their derivatives:
- terpenes or terpenoids, including squalene, farnesol, myrcene, thymol, linolenic, carotenoids,
- omega 3-6-9 unsaturated fatty acids including one or more of arachidonic acid, linolenic acid, mead acid, herring acid,
- triglycerides derived from the above mentioned fatty acids including linseed oil;
- or
- (co-)polymers including polyenes, unsaturated polyester resins, homopolymers copolymers of one or more of butadiene, isoprene, or pentadiene.
Use of a component (I) consisting of a long aliphatic chain having at least unsaturation sites for the stabilization of a nitrate-ester based composition comprising nitrocellulose for applications including propellants and combustible items.
Dependencies are inferred from the claim text.