US3864166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the separation of sugars
Assignee: Roche Diagnostics GmbH
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Filing: 1973-05-30
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Granted: 1975-02-04
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Expires: 1993-05-30
Abstract
Abstract Mixtures of sugars and of sugar alcohols are separated into their component parts by subjecting aqueous solutions of the mixture to chromatography on an insoluble organic resin, wherein the resin is an aryl boric acid group-containing resin.
Inventors
- 👤 Sidney Alan Barker
- 👤 Peter John Somers
- 👤 Brian William Hatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:54
CPC Classifications
C; C13; C13K; C13K13/00; C13K13/007
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
43 words
Process for the separation of D-fructose from at least one member of the group consisting of D-glucose and D-mannose comprising subjecting an aqueous solutions thereof to chromatography on an insoluble organic resin, wherein the resin used is an aryl boric acid group-containing resin.
Claim 2
Dependent Claim
24 words
Process as claimed in claim 1 wherein the resin used is a polymer or copolymer of 4-vinyl-phenyl boric acid or of a derivative thereof.
Claim 3
Dependent Claim
24 words
Process as claimed in claim 1 wherein the resin used is prepared based on at least one of styrene and divinylbenzene as a comonomer.
Claim 4
Dependent Claim
19 words
Process as claimed in claim 1 wherein the separation is carried out at a temperature of 10* - 80*C.
Claim 5
Dependent Claim
20 words
Process as claimed in claim 1 wherein the separation is carried out at a pH of between 3 and 13.
Claim 6
Dependent Claim
22 words
Process as claimed in claim 6, wherein the pH of the elution agent used corresponds to the pKa value of the resin.
Claim 7
Dependent Claim
13 words
Process as claimed in claim 1, wherein a mixture of sugars is separated.
Claim 8
Dependent Claim
14 words
Process as claimed in claim 1, wherein a mixture of sugar alcohols are separated.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |