US2763626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding sand composition comprising a halogenated aliphatic hydrocarbon as a release agent
Assignee: Hexion Inc
•
Filing: 1951-06-21
•
Granted: 1956-09-18
•
Expires: 1971-06-21
Abstract
No abstract record available.
Inventors
- 👤 Harold K Salzberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:18
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; B22C1/2246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A SAND MOLDING COMPOSITION FOR PREPARING MOLDS FOR CASTING MOLTEN METALS COMPRISING A MIXTURE OF FOUNDARY SAND CONSTITUTING THE MAJOR PART OF THE MIXTURE, A HEATCURABLE BINDER COMPOSITION CONTAINING A HYDROPHYLIC RESIN SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OF FORMALDEHYDE WITH PHENOL AND FORMALDEHYDE WITH UREA, IN PROPORTION ADEQUATE TO BOND THE SAME, AND, AS A RELEASE AGENT, A KEROSENE-SOLUBLE C5-C30 SUBSTITUTED ALIPHATIC HYDROCARBON CONTAINING AS SUBSTITUENT ONE HALOGEN ATOM TO THE MOLECULE, THE HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND THE PROPORTION OF THE RELEASE AGENT BEING LESS THAN THE PROPORTION OF THE BINDER.
Claim 2
Dependent Claim
102 words
A SAND MOLDING COMPOSITION FOR PREPARING MOLDS FOR CASTING MOLTEN METALS COMPRISING A MIXTURE OF FOUNDARY SAND CONSTITUTING THE MAJOR PART OF THE MIXTURE, A HEATCURABLE BINDER COMPOSITION CONTAINING A HYDROPHYLIC RESIN SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OF FORMALDEHYDE WITH PHENOL AND FORMALDEHYDE WITH UREA, IN PROPORTION ADEQUATE TO BOND THE SAME, AND, AS A RELEASE AGENT, A KEROSENE-SOLUBLE C5-C30 SUBSTITUTED ALIPHATIC HYDROCARBON CONTAINING AS SUBSTITUENT ONE HALOGEN ATOM TO THE MOLECULE, THE HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND THE PROPORTION OF THE RELEASE AGENT BEING LESS THAN THE PROPORTION OF THE BINDER.
References Cited (Backward Citations)
US2127535A
Cited
US1837877A
Cited
US2045913A
Cited
US2306222A
Cited
US2372236A
Cited
US2358002A
Cited
US2388299A
Cited
US2425978A
Cited
US2466667A
Cited
US2665261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |