Patent US2899397A successfully refreshed from Google Patents.
US2899397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsions
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; C; C08; C08L; C08L63/00; C08L77/00; C08L77/06; C08L77/08; C09; C09J; C09J177/00; C09J177/06; C09J177/08; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS OF PRODUCING A MIXED AQUEOUS EMULSION OF A SOLUTION OF AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS AND A SOLUTION OF A POLYMERIC POLYAMDIE, SAID POLYAMIDE HAVING A LOW ACID NUMBER AND AN AMINE NUMBER WITHIN THE APPROXIMATE RANGE OF 50 TO 300, AND BEING THE REACTION PRODUCT OF AN ALIPHATIC POLYAMINE AND POLYMERIC FAT ACIDS CONTAINING AT LEAST TWO CARBOXYL GROUPS WHICH COMPRISES MIXING THE TWO SOLUTIONS IN THE PRESENCE OF AN AQUEOUS MEDIUM CONTAINING A WATER SOLUBLE ORGANIC CARBOXYLIC ACID AND AGITATING THE MIXTURE TO PRODUCE AN EMULSION WHICH IS STABILIZED BY MEANS OF SALT GROUPS FORMED FROM FREE AMINE GROUPS AND SAID WATER SOLUBLE ORGANIC ACID.
Claim 2
Dependent Claim
112 words
A PROCESS OF PRODUCING A MIXED AQUEOUS EMULSION OF A SOLUTION OF AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS AND A SOLUTION OF A POLYMERIC POLYAMDIE, SAID POLYAMIDE HAVING A LOW ACID NUMBER AND AN AMINE NUMBER WITHIN THE APPROXIMATE RANGE OF 50 TO 300, AND BEING THE REACTION PRODUCT OF AN ALIPHATIC POLYAMINE AND POLYMERIC FAT ACIDS CONTAINING AT LEAST TWO CARBOXYL GROUPS WHICH COMPRISES MIXING THE TWO SOLUTIONS IN THE PRESENCE OF AN AQUEOUS MEDIUM CONTAINING A WATER SOLUBLE ORGANIC CARBOXYLIC ACID AND AGITATING THE MIXTURE TO PRODUCE AN EMULSION WHICH IS STABILIZED BY MEANS OF SALT GROUPS FORMED FROM FREE AMINE GROUPS AND SAID WATER SOLUBLE ORGANIC ACID.
References Cited (Backward Citations)
US2681901A
Cited
US2728737A
Cited
US2640037A
Cited
US2705223A
Cited
US2811495A
Cited
US2707708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |