US4820442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservative composition
Assignee: Freund Corp
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Filing: 1986-12-22
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Granted: 1989-04-11
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Expires: 2006-12-22
Abstract
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.
Inventors
- 👤 Shimesu Motoyama
- 👤 Shigeru Ohno
- 👤 Seiichi Umeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:06
CPC Classifications
C; C08; C08L; C08L39/00; A; A01; A01N; A01N59/00; A01N59/16; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/762; A23B2/788; A23B4/00; A23B4/02; A23B4/023; A23B4/14; A23B4/16; A23B4/18; A23B4/20; A23B4/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
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).
Claim 2
Dependent Claim
69 words
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).
Claim 3
Dependent Claim
111 words
A preservative composition as set forth in claim 1, which further comprises (iv) an ethanol vapor-generating member, and wherein the amount of the component (i) is 1 to 80% by weight based on the sum of the components (i) through (iv), the amount of the component (ii) is 0.5 to 20% by weight based on the sum of the components (i) through (iv), the amount of the component (iii) is 0.1 to 10% by weight based on the sum of the components (i) through (iv) and the amount of ethanol contained in the component (iv) is 2 to 70% by weight based on the sum of the components (i) through (iv).
Claim 4
Dependent Claim
18 words
A preservative composition as set forth in claim 1, wherein the polyallylamine is loaded on a porous carrier.
Claim 5
Dependent Claim
14 words
A preservative composition as set forth in claim 3, wherein the carrier contains water.
Claim 6
Dependent Claim
27 words
A preservative composition as set forth in claim 1, wherein the polyallylamine is loaded on a porous carrier and is then heated and dried to effect deodorization.
Claim 7
Dependent Claim
25 words
A preservative composition as set forth in claim 1, wherein the ethanol vapor-generating member is formed by loading ethanol on a powdery or granular carrier.
Claim 8
Dependent Claim
14 words
A preservative composition as set forth in claim 6, wherein the carrier contains water.
References Cited (Backward Citations)
US4127503A
Cited
JPS54438A
Cited
JPS5411089A
Cited
US4230595A
Cited
JPS552273A
Cited
JPS55109444A
Cited
JPS56148271A
Cited
US4766229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |