US2746942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of co-polymers of an unsaturated fatty acid with a vinyl aromatic compound and an alkoxy polysiloxane
Assignee: Sherwin Williams Co
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Filing: 1952-09-09
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Granted: 1956-05-22
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Expires: 1972-09-09
Abstract
No abstract record available.
Inventors
- 👤 James H Sample
- 👤 Robert A Sturges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:51
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F242/00; C08L; C08L83/00; C08L83/04; C08F212/12; C08F212/14; C08F212/22; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A RESINOUS REACTION PRODUCT OF A REACTIVE POLYORGANOSILOXANE FORMED BY HEATING (A) AN INTERPOLYMER OF AN UNSATURATED MONOCARBOXYLIC FATTY ACID AND A MONOVINYL AROMATIC COMPOUND, (B) AN ALIPHATIC POLYHYDRIC ALCOHOL, AND AFTER REACTING (A) AND (B), THEN INTRODUCING, (C) A REACTIVE POLYORGANOSILOXANE SELECTED FROM THE GROUP CONSISTING OF ALKOXY POLYORGANOSILOXANES, AND ALKOXY POLYORGANOSILOXANES IN WHICH AT LEAST 1 ALKOXY RADICAL HAS BEEN REPLACED WITH HALOGEN, THE ALKYL PORTION OF SAID ALKOXY GROUP HAVING FROM 1 TO 4 CARBON ATOMS THEREIN.
Claim 2
Dependent Claim
80 words
A RESINOUS REACTION PRODUCT OF A REACTIVE POLYORGANOSILOXANE FORMED BY HEATING (A) AN INTERPOLYMER OF AN UNSATURATED MONOCARBOXYLIC FATTY ACID AND A MONOVINYL AROMATIC COMPOUND, (B) AN ALIPHATIC POLYHYDRIC ALCOHOL, AND AFTER REACTING (A) AND (B), THEN INTRODUCING, (C) A REACTIVE POLYORGANOSILOXANE SELECTED FROM THE GROUP CONSISTING OF ALKOXY POLYORGANOSILOXANES, AND ALKOXY POLYORGANOSILOXANES IN WHICH AT LEAST 1 ALKOXY RADICAL HAS BEEN REPLACED WITH HALOGEN, THE ALKYL PORTION OF SAID ALKOXY GROUP HAVING FROM 1 TO 4 CARBON ATOMS THEREIN.
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |