US2680724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary protective coatings for finished surfaces from compositions comprising an aqueous dispersion of a plasticized polyvinyl butyral
Assignee: Spraylat Corp
•
Filing: 1952-01-14
•
Granted: 1954-06-08
•
Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Richard D Oppenheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:38
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14; C09D5/00; C09D5/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A COMPOSITION FOR FORMING TEMPORARY STRIPPABLE PROTECTIVE COATINGS ON FINISHED SURFACES, COMPRISING A PLASTICIZED POLYVINYL BUTYRAL DISPERSED IN WATER CONTAINING AS DISPERSING AGENTS MAHOGANY SULFONATES CORRESPONDING TO THE FORMULA CNH2N-10SO3NA, WHEREIN N IS IN THE RANGE OF 20-30 AND THE AVERAGE MOLECULAR WEIGHT IS IN THE RANGE OF 400-600, SAID COMPOSITION HAVING A SUBSTANTIALLY NEUTRAL REACTION AND CONTAINING 2-16.5 PARTS OF A STRIPPING AGENT SELECTED FROM THE GROUP CONSISTING OF SOYA LECITHIN AND SOLID POLYOXYETHYLENE GLYCOL, FOR 100 PARTS OF THE POLYVINYL BUTYRAL.
Claim 2
Dependent Claim
83 words
A COMPOSITION FOR FORMING TEMPORARY STRIPPABLE PROTECTIVE COATINGS ON FINISHED SURFACES, COMPRISING A PLASTICIZED POLYVINYL BUTYRAL DISPERSED IN WATER CONTAINING AS DISPERSING AGENTS MAHOGANY SULFONATES CORRESPONDING TO THE FORMULA CNH2N-10SO3NA, WHEREIN N IS IN THE RANGE OF 20-30 AND THE AVERAGE MOLECULAR WEIGHT IS IN THE RANGE OF 400-600, SAID COMPOSITION HAVING A SUBSTANTIALLY NEUTRAL REACTION AND CONTAINING 2-16.5 PARTS OF A STRIPPING AGENT SELECTED FROM THE GROUP CONSISTING OF SOYA LECITHIN AND SOLID POLYOXYETHYLENE GLYCOL, FOR 100 PARTS OF THE POLYVINYL BUTYRAL.
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) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |