US3349077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etherified xanthomonas hydrophilic colloids and process of preparation
Assignee: Kelco Co
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Filing: 1965-05-17
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Granted: 1967-10-24
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Richard G Schweiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:19
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0033; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61Q; A61Q19/00; A61Q5/00; A61Q5/06; Y; Y10; Y10S; Y10S424/00; Y10S424/02; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/91
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
THE PROCESS OF TREATING A XANTHOMONAS HYDROPHILIC COLLOID TO INCREASE ITS COMPATIBILITY WITH AN ORGANIC SOLVENT WHICH COMPRISES THE STEPS OF: CONTACTING SAID COLLOID WITH 10 TO 40% OF THE WEIGHT THEREOF WITH AN ALKALI HYDROXIDE DISSOLVED IN AN AQUEOUS MEDIUM, PLACING THE COLLOID SO TREATED WITH SAID ALKALI HYDROXIDE IN A CLOSED VESSEL, HEATING SAID TREATED COLLOID TO A TEMPERATURE IN THE RANGE OF ABOUT 35*C. TO 60*C., INTRODUCING FROM 30 TO 150% BY WEIGHT OF THE INITIAL WEIGHT OF THE XANTHOMONAS COLLOID OF AN ALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF EPOXYETHANE, EPOXYPROPANE, 1,2-EPOXYBUTANE, 2,3-EPOXYBUTANE, EPOXYISOBUTANE, 1,2 EPOXY 3 BUTENE AND EPOXY PROPANOL INTO SAID VESSEL WHILE MAINTAINING SAID TEMPERATURE AND CONTINUING THE SAID TREATMENT STEP UNTIL SAID COLLOID IS ETHERIFIED BY THE SAID ALKYLENE OXIDE TO A D.S. IN THE RANGE OF FROM 0.1 TO 1.0.
Claim 2
Dependent Claim
140 words
THE PROCESS OF TREATING A XANTHOMONAS HYDROPHILIC COLLOID TO INCREASE ITS COMPATIBILITY WITH AN ORGANIC SOLVENT WHICH COMPRISES THE STEPS OF: CONTACTING SAID COLLOID WITH 10 TO 40% OF THE WEIGHT THEREOF WITH AN ALKALI HYDROXIDE DISSOLVED IN AN AQUEOUS MEDIUM, PLACING THE COLLOID SO TREATED WITH SAID ALKALI HYDROXIDE IN A CLOSED VESSEL, HEATING SAID TREATED COLLOID TO A TEMPERATURE IN THE RANGE OF ABOUT 35*C. TO 60*C., INTRODUCING FROM 30 TO 150% BY WEIGHT OF THE INITIAL WEIGHT OF THE XANTHOMONAS COLLOID OF AN ALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF EPOXYETHANE, EPOXYPROPANE, 1,2-EPOXYBUTANE, 2,3-EPOXYBUTANE, EPOXYISOBUTANE, 1,2 EPOXY 3 BUTENE AND EPOXY PROPANOL INTO SAID VESSEL WHILE MAINTAINING SAID TEMPERATURE AND CONTINUING THE SAID TREATMENT STEP UNTIL SAID COLLOID IS ETHERIFIED BY THE SAID ALKYLENE OXIDE TO A D.S. IN THE RANGE OF FROM 0.1 TO 1.0.
Claim 3
Dependent Claim
31 words
AN ETHERIFIED XANTHOMONAS HYDROPHILIC COLLOID HAVING A D.S. OF .1 TO 1, WITH A HYDROXYALKYL RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYETHYL, HYDROXYPROPYL, HYDROXYBUTYL, HYDROXYISOBUTYL, HYDROXY 3 BUTENYL AND DIHYDROXYPROPYL.
Claim 4
Dependent Claim
31 words
AN ETHERIFIED XANTHOMONAS HYDROPHILIC COLLOID HAVING A D.S. OF .1 TO 1, WITH A HYDROXYALKYL RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYETHYL, HYDROXYPROPYL, HYDROXYBUTYL, HYDROXYISOBUTYL, HYDROXY 3 BUTENYL AND DIHYDROXYPROPYL.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |