Patent US3740591A successfully refreshed from Google Patents.
Patent US2589243A successfully refreshed from Google Patents.
US2589243A
Expired / Lapsed
US
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Modified siloxane-alkyd copolymers
Assignee: Dow Silicones Corp
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Filing: 1950-03-15
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Granted: 1952-03-18
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Expires: 1970-03-15
Abstract
No abstract record available.
Inventors
- 👤 Jr John T Goodwin
- 👤 Melvin J Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:13
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A COMPOSITION OF MATTER RESULTING FROM THE REACTION OF 760 PARTS BY WEIGHT OF AN ALKOXYLATED ORGANO POLYSILOXANE, 288 PARTS BY WEIGHT 2-ETHYL HEXOIC ACID, 78 PARTS BY WEIGHT 12-HYDROXY STEARIC ACID, AND 174 PARTS BY WEIGHT GLYCERINE, SAID ALKOXYLATED POLYSILOXANE HAVING 70 PER CENT OF ITS SILICON ATOMS, BEARING A PHENYL AND A METHYL GROUP, 30 PER CENT OF ITS SILICON ATOMS BEARING A PHENYL GROUP, THE REMAINDER OF THE SILICONBONDED ORGANIC CONSISTING OF ALKOXY GROUPS OF 1 TO 5 CARBON ATOMS, SUCH ALKOXY GROUPS AMOUNTING TO 36.5 PER CENT BY WEIGHT OF SAID POLYSILOXANE.
Claim 2
Dependent Claim
96 words
A COMPOSITION OF MATTER RESULTING FROM THE REACTION OF 760 PARTS BY WEIGHT OF AN ALKOXYLATED ORGANO POLYSILOXANE, 288 PARTS BY WEIGHT 2-ETHYL HEXOIC ACID, 78 PARTS BY WEIGHT 12-HYDROXY STEARIC ACID, AND 174 PARTS BY WEIGHT GLYCERINE, SAID ALKOXYLATED POLYSILOXANE HAVING 70 PER CENT OF ITS SILICON ATOMS, BEARING A PHENYL AND A METHYL GROUP, 30 PER CENT OF ITS SILICON ATOMS BEARING A PHENYL GROUP, THE REMAINDER OF THE SILICONBONDED ORGANIC CONSISTING OF ALKOXY GROUPS OF 1 TO 5 CARBON ATOMS, SUCH ALKOXY GROUPS AMOUNTING TO 36.5 PER CENT BY WEIGHT OF SAID POLYSILOXANE.
References Cited (Backward Citations)
US2386793A
Cited
US2529956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |