US2716094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-flowing, non-caking compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-10-17
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Granted: 1955-08-23
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Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Henry L Morrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:28
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/346; Y; Y10; Y10S; Y10S260/00; Y10S260/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A COMPOSITION COMPRISING FROM ABOUT 15 TO 40% BY WEIGHT OF A HYGROSCOPIC WATER-SOLUBLE POLYELECTROLYTE HAVING A WEIGHT-AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND CONTAINING A SUBSTANTIALLY LINEAR CONTINUOUS CARBON TO CARBON CHAIN DERIVED BY THE POLYMERIZATION OF AN ALIPHATIC UNSATURATED GROUP, SAID POLYMERS OF SELECTED FROM THE CLASS CONSISTING OF SALTS OF POLYMERS OF ACRYLIC ACID, POLYACRYLIC ACIDS, SALTS OF POLYMERS OF METHACRYLIC ACID, POLYMETHACRYLIC ACIDS, SALTS OF COPOLYMERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF UNSATURATED POLY-CARBOXYLIC ACID ANHYDRIDES AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, SALTS OF THE COPOLYMER OF THE PARTIAL ALKYL ESTERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF THE PARTIAL ALKYL ESTERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, SALTS OF POLYMERS OF SULFONATED HYDROCARBONS, POLYMERS OF UNSATURATED AMINES, AND POLYMERS OF UNSATURATED AMIDES; AND FROM ABOUT 60% TO ABOUT 85% BY WEIGHT OF A MIXTURE COMPRISING FINELY DIVIDED, PULVERULENT SOLID PARTICLES OF FROM ABOUT 0.25 PARTS TO ABOUT 2.0 PARTS BY WEIGHT OF AN ATTAPULGITE CLAY FOR EACH PART BY WEIGHT OF AN ACID MODIFIED SUB-BENTONITE CLAY.
Claim 2
Dependent Claim
203 words
A COMPOSITION COMPRISING FROM ABOUT 15 TO 40% BY WEIGHT OF A HYGROSCOPIC WATER-SOLUBLE POLYELECTROLYTE HAVING A WEIGHT-AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND CONTAINING A SUBSTANTIALLY LINEAR CONTINUOUS CARBON TO CARBON CHAIN DERIVED BY THE POLYMERIZATION OF AN ALIPHATIC UNSATURATED GROUP, SAID POLYMERS OF SELECTED FROM THE CLASS CONSISTING OF SALTS OF POLYMERS OF ACRYLIC ACID, POLYACRYLIC ACIDS, SALTS OF POLYMERS OF METHACRYLIC ACID, POLYMETHACRYLIC ACIDS, SALTS OF COPOLYMERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF UNSATURATED POLY-CARBOXYLIC ACID ANHYDRIDES AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, SALTS OF THE COPOLYMER OF THE PARTIAL ALKYL ESTERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, COPOLYMERS OF THE PARTIAL ALKYL ESTERS OF UNSATURATED POLYCARBOXYLIC ACIDS AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER, SALTS OF POLYMERS OF SULFONATED HYDROCARBONS, POLYMERS OF UNSATURATED AMINES, AND POLYMERS OF UNSATURATED AMIDES; AND FROM ABOUT 60% TO ABOUT 85% BY WEIGHT OF A MIXTURE COMPRISING FINELY DIVIDED, PULVERULENT SOLID PARTICLES OF FROM ABOUT 0.25 PARTS TO ABOUT 2.0 PARTS BY WEIGHT OF AN ATTAPULGITE CLAY FOR EACH PART BY WEIGHT OF AN ACID MODIFIED SUB-BENTONITE CLAY.
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) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |