US3846567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vegetable product coated with propionic acid impregnated particulate material
Assignee: Chinoin Private Co Ltd
•
Filing: 1972-01-27
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Granted: 1974-11-05
•
Expires: 1992-01-27
Abstract
Abstract A preservative for organic substances comprises a powdery mixture of organic carboxylic acid, especially propionic acid, and a solid dispergent having a particle size below 10 microns such that the liquide constitutes 50 to 90 percent of the mixture and is adsorbent upon solid. The powder may be brought into direct contact with, for example, vegetable matter to be treated.
Inventors
- 👤 J Matyas
- 👤 I Petroczy
- 👤 E Somfai
- 👤 A David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:03
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01; A; A01; A01N; A01N25/00; A01N25/12; B; B01; B01J; B01J19/00; B01J19/06; C01B17/00; C01B17/69; C01B17/74; C01B21/00; C01B21/20; C01B21/38; C01B21/46; C01B33/00; C01B33/113
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
A PROCESS FOR TREATING A VEGETABLE PRODUCT WITH VAPORS OF PROPIONIC ACID HAVING A VAPOR PRESSURE OF 10 TO 100 MM HG AT AMBIENT TEMPERATURE, COMPRISING THE STEPS OF: A. INTIMATELY MIXING THE PROPIONIC ACID WITH A FINELY DIVIDED PARTICULATE SOLID SELECTED FROM THE GROUP WHICH CONSISTS OF DISPERGENT OXIDES, ACTIVATED CHARCOAL, PERLITE, PLASTIC POWDERS, BENTONITE OR PEAT AMORPHOUS OR MICROCRYSTALLINE TO X-RAYS AND A OF A PARTICLE SIZE UNDER 10 MICRONS TO PRODUCE A POWDER CONTAINING 50 TO 95 PERCENT OF THE PROPIONIC ACID; AND B. CONTACTING SAID VEGETABLE PRODUCT WITH SAID POWDER.
Claim 2
Dependent Claim
94 words
A PROCESS FOR TREATING A VEGETABLE PRODUCT WITH VAPORS OF PROPIONIC ACID HAVING A VAPOR PRESSURE OF 10 TO 100 MM HG AT AMBIENT TEMPERATURE, COMPRISING THE STEPS OF: A. INTIMATELY MIXING THE PROPIONIC ACID WITH A FINELY DIVIDED PARTICULATE SOLID SELECTED FROM THE GROUP WHICH CONSISTS OF DISPERGENT OXIDES, ACTIVATED CHARCOAL, PERLITE, PLASTIC POWDERS, BENTONITE OR PEAT AMORPHOUS OR MICROCRYSTALLINE TO X-RAYS AND A OF A PARTICLE SIZE UNDER 10 MICRONS TO PRODUCE A POWDER CONTAINING 50 TO 95 PERCENT OF THE PROPIONIC ACID; AND B. CONTACTING SAID VEGETABLE PRODUCT WITH SAID POWDER.
Claim 3
Dependent Claim
22 words
The process defined in claim 1 wherein said solid is hydrophobic or hydrophilic silicon dioxide, aluminum oxide, silicates, aluminates, or mixtures thereof.
Claim 4
Dependent Claim
26 words
The process defined in claim 2 wherein said powder is contacted with said vegetable product in an amount equivalent to 0.1 to 3 percent propionic acid.
Claim 5
Dependent Claim
28 words
The process defined in claim 3 wherein said solid is composed at least in part of silicon dioxide and said powder contains 55 to 80 percent propionic acid.
Claim 6
Dependent Claim
18 words
The process defined in claim 4 wherein said solid is a mixture of hydrophobic and hydrophilic silicon dioxide.
References Cited (Backward Citations)
US1668464A
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US2760866A
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US3449108A
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US3404987A
Cited
US3591515A
Cited
US3692534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |