US2533270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyd resins
Assignee: Interchemical Corp
•
Filing: 1946-11-26
•
Granted: 1950-12-12
•
Expires: 1966-11-26
Abstract
No abstract record available.
Inventors
- 👤 Linkletter Olive-Sue
- 👤 Joyce L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN ALKYD RESIN CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (1) A PARTIAL ESTER OF 0.55 TO 0.8 MOL OF PENTAERYTHRITOL WITH 1 MOL OF A HIGH MOLECULAR WEIGHT UNSATURATED FATTY ACID HAVING FROM 16 TO 20 CARBON ATOMS AND 2 TO 4 DOUBLE BONDS, (2) AN ADDUCT OF AN ALPHA-UNSATURATED DICARBOXYLIC ACID AND A TERPENE, AND (3) A TRIMETHYLOL DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF 1,1,1-TRIMETHYLOL ETHANE AND 1,1,1-TRIMETHYLOL PROPANE, THE MOLAR RATIO OF THE ADDUCT TO THE PARTIAL ESTER RANGING FROM 1.6:1 TO 1:1, SAID ALKYD RESIN HAVING A FREE HYDROXYL PERCENTAGE RANGING FROM 1 TO 3, A MAXIMUM ACID NUMBER OF 25, AND A MAXIMUM GEL TIME OF 25 SECONDS ON A CURE PLATE MAINTAINED AT A TEMPERATURE OF 190*C.
Claim 2
Dependent Claim
124 words
AN ALKYD RESIN CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (1) A PARTIAL ESTER OF 0.55 TO 0.8 MOL OF PENTAERYTHRITOL WITH 1 MOL OF A HIGH MOLECULAR WEIGHT UNSATURATED FATTY ACID HAVING FROM 16 TO 20 CARBON ATOMS AND 2 TO 4 DOUBLE BONDS, (2) AN ADDUCT OF AN ALPHA-UNSATURATED DICARBOXYLIC ACID AND A TERPENE, AND (3) A TRIMETHYLOL DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF 1,1,1-TRIMETHYLOL ETHANE AND 1,1,1-TRIMETHYLOL PROPANE, THE MOLAR RATIO OF THE ADDUCT TO THE PARTIAL ESTER RANGING FROM 1.6:1 TO 1:1, SAID ALKYD RESIN HAVING A FREE HYDROXYL PERCENTAGE RANGING FROM 1 TO 3, A MAXIMUM ACID NUMBER OF 25, AND A MAXIMUM GEL TIME OF 25 SECONDS ON A CURE PLATE MAINTAINED AT A TEMPERATURE OF 190*C.
References Cited (Backward Citations)
GB468542A
Cited
US2222581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |