US3387061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical reaction product of polycarboxylic acid and a polymeric polyether
Assignee: Union Carbide Corp
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Filing: 1966-05-04
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Granted: 1968-06-04
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Keith L Smith
- 👤 Alfred E Winslow
- 👤 Edward C Seltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:03
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08L; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S526/00; Y10S526/931; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T442/00; Y10T442/20; Y10T442/2369
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE PRODUCT OF CHEMICAL REACTION OF A POLYMERIC POLYCARBOXYLCI ACID AND A POLYMERIC POLYETHER; SAID ACID CONTAINS AT LEAST AN AVERAGE OF ABOUT 10 CARBOXYLIC ACID GROUPS, AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 600, AND AN AVERAGE OF FROM ABOUT 0.3 TO ABOUT 1.7 FRE CARBOXYLIC ACID GROUPS PER 100 MOLECULAR WEIGHT OF SAID POLYMERIC POLYCARBOXYLIC ACID, AND SAID POLYMERIC POLYETHER HAS AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 4000, POSSESES FROM ABOUT 0.5 TO ABOUT 3.33 NON-CYCLIC ALIPHATIC ETHER GROUPS PER 100 MOLECULAR WEIGHT, AND IS FROM THE GROUPS CONSISTING OF POLY(ALKENYL ALKYL ETHER) AND A POLYETHER POSSESSING A PLURALITY OF RECURRING ALKYLENE OXIDE RADICALS, THE OXIDE MOIETIES OF WHICH ARE SAID NONCYCLIC ALIPHATIC ETHER GROUPS, SAID PRODUCT OF CHEMICAL REACTION BEING INSOLUBLE IN HOT AND COLD WATER.
Claim 2
Dependent Claim
132 words
THE PRODUCT OF CHEMICAL REACTION OF A POLYMERIC POLYCARBOXYLCI ACID AND A POLYMERIC POLYETHER; SAID ACID CONTAINS AT LEAST AN AVERAGE OF ABOUT 10 CARBOXYLIC ACID GROUPS, AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 600, AND AN AVERAGE OF FROM ABOUT 0.3 TO ABOUT 1.7 FRE CARBOXYLIC ACID GROUPS PER 100 MOLECULAR WEIGHT OF SAID POLYMERIC POLYCARBOXYLIC ACID, AND SAID POLYMERIC POLYETHER HAS AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 4000, POSSESES FROM ABOUT 0.5 TO ABOUT 3.33 NON-CYCLIC ALIPHATIC ETHER GROUPS PER 100 MOLECULAR WEIGHT, AND IS FROM THE GROUPS CONSISTING OF POLY(ALKENYL ALKYL ETHER) AND A POLYETHER POSSESSING A PLURALITY OF RECURRING ALKYLENE OXIDE RADICALS, THE OXIDE MOIETIES OF WHICH ARE SAID NONCYCLIC ALIPHATIC ETHER GROUPS, SAID PRODUCT OF CHEMICAL REACTION BEING INSOLUBLE IN HOT AND COLD WATER.
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |