Patent US2541184A successfully refreshed from Google Patents.
US2541184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent resins and methods of making same
Assignee: Sun Chemical Corp
•
Filing: 1948-04-22
•
Granted: 1951-02-13
•
Expires: 1968-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ackerman Raymond Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; C; C08; C08G; C08G12/00; C09; C09D; C09D5/00; C09D5/22; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF PREPARING A THERMOSETTING FLUORESCENT RESINOUS MATERIAL WHICH COMPRISES HEAT REACTING, AT A PH OF AT LEAST 8.0, A LOWER ALIPHATIC ALDEHYDE AND A LOWER DIALKYL KETONE IN THE RATIO OF 1 TO 6 MOLS OF THE ALDEHYDE TO ONE MOL OF THE KETONE, AND CO-REACTING THEREWITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DICYANDIAMIDE AND THE SALTS OF GUANIDINE IN THE MOLAR RATIO OF SAID MATERIAL TO THE COMBINED ALDEHYDE AND KETONE REACTANTS OF BETWEEN APPROXIMATELY 1 TO 6.7 AND 1 TO 14 TO FORM A WATER SOLUBLE REACTION PRODUCT.
Claim 2
Independent Claim
94 words
A METHOD OF PREPARING A THERMOSETTING FLUORESCENT RESINOUS MATERIAL WHICH COMPRISES HEAT REACTING, AT A PH OF AT LEAST 8.0, A LOWER ALIPHATIC ALDEHYDE AND A LOWER DIALKYL KETONE IN THE RATIO OF 1 TO 6 MOLS OF THE ALDEHYDE TO ONE MOL OF THE KETONE, AND CO-REACTING THEREWITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DICYANDIAMIDE AND THE SALTS OF GUANIDINE IN THE MOLAR RATIO OF SAID MATERIAL TO THE COMBINED ALDEHYDE AND KETONE REACTANTS OF BETWEEN APPROXIMATELY 1 TO 6.7 AND 1 TO 14 TO FORM A WATER SOLUBLE REACTION PRODUCT.
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |