US3408318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sacrificial zinc coating compositions
Assignee: Celanese Coatings Co
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Filing: 1966-03-17
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Granted: 1968-10-29
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Expires: 1986-03-17
Abstract
No abstract record available.
Inventors
- 👤 Madison Ralph Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/10; C09D5/106; C04; C04B; C04B14/00; C04B14/02; C04B14/34; C04B28/00; C04B28/02; C04B28/04; C04B40/00; C04B40/02; C04B40/0277; C09D163/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A CORROSION RESISTANT COMPRISING AN INTIMATE ADMIXTURE OF A PORTLAND CEMENT BINDER AND ZINC DUST IN A SOLUTION OF A FILM-FORMING POLYEPOXIDE RESIN, WHEREIN THE POLYEPOXIDE RESIN CONTAINS MORE THAN ONE 1,2 EPOXIDE GROUP PER MOLECULE AND IS A GLYCIDYL POLYETHER OF P,P''DIHYDROXYDIPHENYL PROPANE AND AN ORGANIC SOLVENT FOR THE POLYEPOXIDE RESIN, WHEREIN THE ORGANIC SOLVENT CONTAINS ON GROUPS REACTIVE WITH PORTLAND CEMENT, ZINC AND THE POLYEPOXIDE RESIN, THE WEIGHT RATIO OF CEMENT TO ZINC BEING 1:1 TO 1:8, THE AMOUNT OF FILM-FORMING RESIN BEING 1 TO 10 WEIGHT PERCENT BASED ON THE WEIGHT OF THE CEMENTZINC-RESIN MIXTURE, THE AMOUNT OF SOLVENT BEING SUFFICIENT TO CONFER APPLICATION PROPERTIES ON THE COMPOSITION, AND WHEREIN SAID PAINT IS SUBSTANTIALLY FREE OF WATER.
Claim 2
Dependent Claim
120 words
A CORROSION RESISTANT COMPRISING AN INTIMATE ADMIXTURE OF A PORTLAND CEMENT BINDER AND ZINC DUST IN A SOLUTION OF A FILM-FORMING POLYEPOXIDE RESIN, WHEREIN THE POLYEPOXIDE RESIN CONTAINS MORE THAN ONE 1,2 EPOXIDE GROUP PER MOLECULE AND IS A GLYCIDYL POLYETHER OF P,P''DIHYDROXYDIPHENYL PROPANE AND AN ORGANIC SOLVENT FOR THE POLYEPOXIDE RESIN, WHEREIN THE ORGANIC SOLVENT CONTAINS ON GROUPS REACTIVE WITH PORTLAND CEMENT, ZINC AND THE POLYEPOXIDE RESIN, THE WEIGHT RATIO OF CEMENT TO ZINC BEING 1:1 TO 1:8, THE AMOUNT OF FILM-FORMING RESIN BEING 1 TO 10 WEIGHT PERCENT BASED ON THE WEIGHT OF THE CEMENTZINC-RESIN MIXTURE, THE AMOUNT OF SOLVENT BEING SUFFICIENT TO CONFER APPLICATION PROPERTIES ON THE COMPOSITION, AND WHEREIN SAID PAINT IS SUBSTANTIALLY FREE OF WATER.
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |