Method of preparing size

Details Method of preparing size Method of preparing size

1975-04-25

1976-06-08

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106197C, 260232, 260233, C08L 128

Patent

active

039619761

ABSTRACT:
An improved fuse size, as well as a method for preparing same, are disclosed. Specifically, the fuse size disclosed includes a combination of urea and carboxymethyl cellulose, preferably including added starch. The method disclosed includes combining the urea and carboxymethyl cellulose, heating the mixture, and then adding an oxidizing agent to the mixture in the presence of a metal ion which has at least two oxidation stages, but which is in the lower of said oxidation stages when added thereto. In a preferred embodiment, the oxidizing agent employed comprises hydrogen peroxide, and the metal ion is preferably bivalent iron, added in the form of a ferrous salt such as ferrous chloride.

REFERENCES:
patent: 2487766 (1949-11-01), Schmidt
patent: 3778392 (1973-12-01), Hughes

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