US2964491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat hardenable phenolic resin compositions comprising blends of alkenylphenol-aldehyde resins and polyvinylacetal resins and metal base coated therewith
Assignee: PPG Industries Inc
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Filing: 1957-07-01
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Granted: 1960-12-13
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Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Rylander
- 👤 Henry A Vogel
- 👤 Robert F Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:30
CPC Classifications
C; C08; C08L; C08L29/00; C08L29/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION COMPRISING THE RESINOUS CONDENSATION PRODUCT OF A MIXTURE OF BUTENYLPHENOLS AND AN ALDEHYDE CONTAINING ONLY ATOMS OF CARBON, HYDROGEN, AND OXYGEN, AND AS A PLASTICIZER THEREFOR, FROM ABOUT 10 PERCENT TO ABOUT 35 PERCENT BY WEIGHT OF A POLYVINYLACETAL RESIN SELECTED FROM THE CLASS CONSISTING OF POLYVINYLBUTYRAL AND POLYVINYLFORMAL RESINS, BASED ON THE SOLIDS OF SAID RESINOUS CONDENSATION PRODUCT.
Claim 2
Dependent Claim
61 words
A COMPOSITION COMPRISING THE RESINOUS CONDENSATION PRODUCT OF A MIXTURE OF BUTENYLPHENOLS AND AN ALDEHYDE CONTAINING ONLY ATOMS OF CARBON, HYDROGEN, AND OXYGEN, AND AS A PLASTICIZER THEREFOR, FROM ABOUT 10 PERCENT TO ABOUT 35 PERCENT BY WEIGHT OF A POLYVINYLACETAL RESIN SELECTED FROM THE CLASS CONSISTING OF POLYVINYLBUTYRAL AND POLYVINYLFORMAL RESINS, BASED ON THE SOLIDS OF SAID RESINOUS CONDENSATION PRODUCT.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |