Slow burning alcohol-free nitrocellulose

Details Slow burning alcohol-free nitrocellulose Slow burning alcohol-free nitrocellulose

C - Chemistry, Metallurgy

08

L

C08L 1/18 (2006.01) C09D 11/14 (2006.01) C09D 101/18 (2006.01)

Patent

CA 2085576

ABSTRACT OF THE DISCLOSURE SLOW BURNING ALCOHOL-FREE NITROCELLULOSE An alcohol-free and encapsulated nitrocellulose which is primarily suitable for printing inks, varnishes and coatings consists of 65-75% nitrocellulose, 3-8% water, 10-15% non-solvating plasticizer and 10-15% of an active solvent suitable for both nitrocellulose and the plasticizer. A product is produced by drying water-wet nitrocellulose and spraying on a solution of plasticizer in solvent. Upon blending to a uniform consistency, the nitrocellulose becomes partially dissolved and encapsulated within the plasticizer/solvent mixture. The advantages of the invention are improved safety indicated by a lower rate of burning and reduced environmental pollution wherein the product is alcohol-free such that no additional alcohol recovery system is required. 727

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