US2933473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercaptans as catalysts for polymerization of ethoxyline resins
Assignee: General Electric Co
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Filing: 1956-07-09
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Granted: 1960-04-19
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Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 John V Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/687
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD OF CURING GLYCIDYL ETHERS OF DIHYDRIC PHENOLS WHICH COMPRISES CATALYZING THE POLYMERIZATION OF SAID ETHERS TO THE CURED RESINOUS STATE BY MEANS OF A CATALYST COMPRISING THE REACTION PRODUCT OF AN AMINE AND A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF THIOPHENOL, 2-ETHYLHEXYL THIOGLYCOLLATE, GLYCEROL TRITHIOGLYCOLLATE, PENTAERYTHRITOL TETRATHIOGLYCOLLATE, PROPYLENE GLYCOL MERCAPTOSUCCINATE, AND MERCAPTANS OF THE FORMULA HS-CH2-X WHERE X IS A MONOVALENT NEGATIVE GROUP SELECTED FROM THE CLASS CONSISTING OF THE NITRILE AND ALDEHYDE GROUPS.
Claim 2
Independent Claim
77 words
A METHOD OF CURING GLYCIDYL ETHERS OF DIHYDRIC PHENOLS WHICH COMPRISES CATALYZING THE POLYMERIZATION OF SAID ETHERS TO THE CURED RESINOUS STATE BY MEANS OF A CATALYST COMPRISING THE REACTION PRODUCT OF AN AMINE AND A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF THIOPHENOL, 2-ETHYLHEXYL THIOGLYCOLLATE, GLYCEROL TRITHIOGLYCOLLATE, PENTAERYTHRITOL TETRATHIOGLYCOLLATE, PROPYLENE GLYCOL MERCAPTOSUCCINATE, AND MERCAPTANS OF THE FORMULA HS-CH2-X WHERE X IS A MONOVALENT NEGATIVE GROUP SELECTED FROM THE CLASS CONSISTING OF THE NITRILE AND ALDEHYDE GROUPS.
References Cited (Backward Citations)
US2789958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |