Slow burning alcohol-free nitrocellulose

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

1991-12-20

1998-11-03

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

10616919, 10616924, 10616925, 10616927, 10616934, 10616939, 10616951, C09D10118

Patent

active

058302662

ABSTRACT:
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.

REFERENCES:
patent: 2616824 (1952-11-01), Meiler et al.
patent: 3325315 (1967-06-01), Sapiego
patent: 3325571 (1967-06-01), Sapiego
patent: 3325572 (1967-06-01), Sapiego
patent: 3522070 (1970-07-01), Webb
patent: 3615792 (1971-10-01), Keene
patent: 3948675 (1976-04-01), Rat et al.
patent: 3992335 (1976-11-01), Denissenko

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