US3765918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of xanthomonas and guar gum
Assignee: General Mills Chemicals Inc
•
Filing: 1972-07-17
•
Granted: 1973-10-16
•
Expires: 1992-07-17
Abstract
Abstract A blend of xanthomonas gum and guar gum which upon hydration exhibits viscosities in excess of the additive viscosities of the components. The xanthomonas gum in the blend is pretreated by heating.
Inventors
- 👤 W Jordan
- 👤 W Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:08
CPC Classifications
C; C09; C09K; C09K3/00; C08; C08L; C08L5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
15 words
The thickener blend of claim 1 wherein the xanthomonas gum is pretreated by convection heating.
Claim 2
Dependent Claim
15 words
The thickener blend of claim 1 wherein the xanthomonas gum is pretreated by irradiation heating.
Claim 3
Dependent Claim
15 words
The thickener blend of claim 1 wherein the xanthomonas gum is pretreated by conduction heating.
Claim 4
Dependent Claim
25 words
The thickener blend of claim 1 wherein the xanthomonas gum is pretreated by heating the xanthomonas gum to a temperature between about 47* to 180*C.
Claim 5
Dependent Claim
19 words
The thickener blend of claim 5 wherein the xanthomonas gum is pretreated prior to blending with the guar gum.
Claim 6
Dependent Claim
18 words
The thickener blend of claim 5 wherein the xanthomonas gum is pretreated after blending with the guar gum.
Claim 7
Dependent Claim
37 words
The thickener blend of claim 5 wherein the proportions of guar gum and pretreated xanthomonas gum are about 75 to 90 percent guar gum by weight and about 10 to 25 percent pretreated xanthomonas gum by weight.
Claim 8
Dependent Claim
22 words
The thickener blend of claim 5 wherein the xanthomonas gum was pretreated by heating to a temperature between about 47*C. to 150*C.
Claim 9
Dependent Claim
76 words
The thickener blend of claim 5 wherein the xanthomonas gum is pretreated by heating the xanthomonas gum to a temperature of from about 80* to 180*C. for a period of time of about 0.6 minutes to about 16 hours, the temperature range being combined with the time period range in inverse relationship, said heating inducing a capacity in the xanthomonas gum for interacting with guar gum and said heating being terminated prior to destroying said capacity.
References Cited (Backward Citations)
US3384498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |