US4053699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash drying of xanthan gum and product produced thereby
Assignee: General Mills Chemicals Inc
•
Filing: 1976-03-31
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Granted: 1977-10-11
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Expires: 1996-03-31
Abstract
Abstract Flash dried granules of calcium-xanthomonas gum complex.
Inventors
- 👤 Patrick Thomas Cahalan
- 👤 John Allen Peterson
- 👤 Douglas Arthur Arndt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:07
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0033; Y; Y10; Y10S; Y10S507/00; Y10S507/904; Y10S507/922
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
In a method of making calcium-xanthomonas gum complex granules comprising the steps of precipitating xanthomonas gum with calcium ion at an alkaline pH to form a complex, adjusting the moisture content of the complex to from 70 to 80% by weight of the complex, the improvement consisting of flash drying the complex at an air temperature of 70° C. to 250° C. to a moisture content of no more than 12% by weight in a period of about no more than 30 seconds.
Claim 2
Dependent Claim
83 words
In a method of making calcium-xanthomonas gum complex granules comprising the steps of precipitating xanthomonas gum with calcium ion at an alkaline pH to form a complex, adjusting the moisture content of the complex to from 70 to 80% by weight of the complex, the improvement consisting of flash drying the complex at an air temperature of 70° C. to 250° C. to a moisture content of no more than 12% by weight in a period of about no more than 30 seconds.
Claim 3
Dependent Claim
21 words
The method of claim 1 in which the calcium ion precipitates the xanthomonas gum at a pH of 11.5 to 13.
Claim 4
Dependent Claim
9 words
The product prepared by the method of claim 1.
References Cited (Backward Citations)
US2950195A
Cited
US3080355A
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US3042668A
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US3455899A
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US3679658A
Cited
US3712883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |