US4008339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing polyphenols in vegetable beverages
Assignee: Asahi Kasei Corp
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Filing: 1975-12-24
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Granted: 1977-02-15
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Expires: 1995-12-24
Abstract
Abstract Vegetable beverages are clarified or stabilized by using an adsorbent material consisting essentially of a specified N-substituted polyamide or polyamide mixture. The specified polyamide is such that 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula -(CH.sub.2).sub.n -R where n is an integer of 1 to 4 and R is at least one member selected from a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.
Inventors
- 👤 Shogo Matsuda
- 👤 Tomio Kuriki
- 👤 Kazuto Ohue
- 👤 Kunihiko Okajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:34
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/70; A23L2/80; B; B01; B01J; B01J20/00; B01J20/22; C; C08; C08G; C08G69/00; C08G69/48; C08G69/50; C12; C12H; C12H1/00; C12H1/02; C12H1/04; C12H1/0416; C12H1/0424
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
A process for removing polyphenols present in vegetable beverages which comprises bringing a vegetable beverage into contact with an adsorbent material in the form of finely divided porous powders or flakes, said adsorbent material consisting essentially of a polyamide containing recurring amide groups as an integral part of the main polymer chain or a mixture of polyamides containing recurring amide groups as an integral part of the main polymer chain in which 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula --(CH.sub.2).sub.n --R where n is an integer of 1 to 4 and R is at least one member selected from the group consisting of a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.
Claim 2
Dependent Claim
156 words
A process for removing polyphenols present in vegetable beverages which comprises bringing a vegetable beverage into contact with an adsorbent material in the form of finely divided porous powders or flakes, said adsorbent material consisting essentially of a polyamide containing recurring amide groups as an integral part of the main polymer chain or a mixture of polyamides containing recurring amide groups as an integral part of the main polymer chain in which 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula --(CH.sub.2).sub.n --R where n is an integer of 1 to 4 and R is at least one member selected from the group consisting of a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.
Claim 3
Dependent Claim
12 words
A process according to claim 1 wherein said vegetable beverage is beer.
Claim 4
Dependent Claim
16 words
A process according to claim 1 wherein said vegetable beverage is beer fresh from the fermenter.
Claim 5
Dependent Claim
12 words
A process according to claim 1 wherein said vegetable beverage is wine.
Claim 6
Dependent Claim
26 words
A process according to claim 1 wherein said contact with the adsorbent material is effected by incorporating the finely divided adsorbent material into the vegetable beverage.
Claim 7
Dependent Claim
35 words
A process according to claim 1 wherein said contact with the adsorbent material is effected by passing the vegetable beverage through a filter sheet formed from an aqueous dispersion of said finely divided adsorbent material.
Claim 8
Dependent Claim
29 words
A process according to claim 1 wherein said contact with the adsorbent material is effected by passing the vegetable beverage through a bed of said finely divided adsorbent material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |