Patent US3297583A successfully refreshed from Google Patents.
US3297583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rapid dissolution
Assignee: Henkel AG and Co KGaA
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Filing: 1964-02-18
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Granted: 1967-01-10
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Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Dierichs Wolfgang
- 👤 Sammet Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:45
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C08B; C08B11/00; C08B11/20; C08B3/00; C08B3/22; C08B31/00; C08B37/00; C09; C09D; C09D129/00; C09D129/02; C09D129/04; C09J; C09J129/00; C09J129/02; C09J129/04; D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/09; D06M15/11; C08J2300/00; C08J2300/10; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A PROCESS FOR THE RAPID, LUMP-FREE DISSOLUTION OF A WATER-SOLUBLE MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE SUBSTANCES, STARCH SUBSTANCES, PLANT EXTRACTS AND POLYVINYL ALCOHOL WHICH SUBSTANCES HAVE BEEN PRETREATED IN THE DRY STATE WITH 0.005 TO 5% OF AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALDEHYDES AND LOWER ALKYL DIALDEHYDES IN THE PRESENCE OF A WEAK ACID WHICH COMPRISES DISPERSING THE SAID PRETREATED MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXY GROUPS IN WATER AND IMMEDIATELY THEREAFTER ADDING A SUFFICIENT AMOUNT OF AN ALKALINE ACTING SUBSTANCE THERETO TO ADJUST THE PH VALUE TO 7 TO 10 WHEREBY THE SAID MACROMOLECULAR SUBSTANCE RAPIDLY DISSOLVES IN THE WATER.
Claim 2
Dependent Claim
117 words
A PROCESS FOR THE RAPID, LUMP-FREE DISSOLUTION OF A WATER-SOLUBLE MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE SUBSTANCES, STARCH SUBSTANCES, PLANT EXTRACTS AND POLYVINYL ALCOHOL WHICH SUBSTANCES HAVE BEEN PRETREATED IN THE DRY STATE WITH 0.005 TO 5% OF AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALDEHYDES AND LOWER ALKYL DIALDEHYDES IN THE PRESENCE OF A WEAK ACID WHICH COMPRISES DISPERSING THE SAID PRETREATED MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXY GROUPS IN WATER AND IMMEDIATELY THEREAFTER ADDING A SUFFICIENT AMOUNT OF AN ALKALINE ACTING SUBSTANCE THERETO TO ADJUST THE PH VALUE TO 7 TO 10 WHEREBY THE SAID MACROMOLECULAR SUBSTANCE RAPIDLY DISSOLVES IN THE WATER.
Claim 3
Dependent Claim
99 words
A COMPOSITION RAPIDLY SOLUBLE IN WATER CONSISTING ESSENTIALLY OF A WATER-SOLUBLE MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE SUBSTANCES, STARCH SUBSTANCES, PLANT EXTRACTS AND POLYVINYL ALCOHOL WHICH SUBSTANCES HAVE BEEN PRETREATED IN THE DRY STATE WITH 0.005 TO 5% OF AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALDEHYDES AND LOWER ALKYL DIALDEHYDES IN THE PRESENCE OF A WEAK ACID AND ALKALINE SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH METAL CARBONATES AND SULFATES OBTAIN A PH OF 7 TO 10 WHEN THE COMPOSITION IS ADDED TO WATER.
Claim 4
Dependent Claim
99 words
A COMPOSITION RAPIDLY SOLUBLE IN WATER CONSISTING ESSENTIALLY OF A WATER-SOLUBLE MACROMOLECULAR SUBSTANCE HAVING A PLURALITY OF HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE SUBSTANCES, STARCH SUBSTANCES, PLANT EXTRACTS AND POLYVINYL ALCOHOL WHICH SUBSTANCES HAVE BEEN PRETREATED IN THE DRY STATE WITH 0.005 TO 5% OF AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALDEHYDES AND LOWER ALKYL DIALDEHYDES IN THE PRESENCE OF A WEAK ACID AND ALKALINE SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH METAL CARBONATES AND SULFATES OBTAIN A PH OF 7 TO 10 WHEN THE COMPOSITION IS ADDED TO WATER.
References Cited (Backward Citations)
US2807591A
Cited
AT199616B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |