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US 4,820,442 AGranted
Preservative composition
AssigneeFreund Industrial Co., Ltd.
InventorsShimesu Motoyama, Shigeru Ohno, Seiichi Umeda
Life of this patent
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Abstract
Disclosed is a preservative composition for foodstuffs and the like, which is comprised of (i) a metal powder or a granulated product thereof, (ii) an oxidation accelerator for the metal, (iii) polyallylamine, and (iv) an optional ethanol vapor-generating member. The polyallylamine is preferably deodorized by loading a solution of polyallylamine or a salt thereof on a carrier, and heating and drying the polyallylamine-loaded carrier.
Claims7
A preservative composition, which comprises;
- (i) 60% to 98% by weight of an iron powder or a granulated product thereof,
- (ii) 1% to 40% by weight of an alkali metal halide or an alkaline earth metal halide, and
- (iii) 0.1% to 10% by weight of polyallylamine, the amounts of the respective components (i), (ii) and (iii) being based on the sum of the three components (i), (ii) and (iii).
Dependencies are inferred from the claim text.