US2897166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of coating of soft resins from polyisocyanates and compounds containing hydroxyl groups
Assignee: Bayer AG
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Filing: 1954-11-05
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Granted: 1959-07-28
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Expires: 1974-11-05
Abstract
No abstract record available.
Inventors
- 👤 Eitel Kurt
- 👤 Schmidt Fritz
- 👤 Mauthe Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:39
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; C14C11/006; C09; C09D; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS WHICH COMPRISES APPLYING TO A POROUS SURFACE A SOLUTION IN AN INERT ORGANIC SOLVENT OF A POLYISOCYANATE, A SOFT POLYFUNCTIONAL RESIN COMPRISING A POLYESTER PREPARED FROM A POLYBASIC CARBOXYLIC ACID AND A SUBSTANTIAL EXCESS OF A POLYHYDRIC ALCOHOL AND A METALLIC SOAP SELECTED FROM THE GROUP CONSISTING OF A TITANIUM AND ZIRCONIUM METALLIC SOAPS, AND SUBSEQUENTLY ALLOWING THE SOLUTION APPLIED TO SAID SURFACE TO DRY TO THEREBY OBTAIN A HIGH LUSTER, SMOOTH, CRATER-FREE COATING.
Claim 2
Dependent Claim
76 words
A PROCESS WHICH COMPRISES APPLYING TO A POROUS SURFACE A SOLUTION IN AN INERT ORGANIC SOLVENT OF A POLYISOCYANATE, A SOFT POLYFUNCTIONAL RESIN COMPRISING A POLYESTER PREPARED FROM A POLYBASIC CARBOXYLIC ACID AND A SUBSTANTIAL EXCESS OF A POLYHYDRIC ALCOHOL AND A METALLIC SOAP SELECTED FROM THE GROUP CONSISTING OF A TITANIUM AND ZIRCONIUM METALLIC SOAPS, AND SUBSEQUENTLY ALLOWING THE SOLUTION APPLIED TO SAID SURFACE TO DRY TO THEREBY OBTAIN A HIGH LUSTER, SMOOTH, CRATER-FREE COATING.
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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |