US2954301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding freshly applied hydraulic cement materials to surfaces
Assignee: Honeywell International Inc
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Filing: 1957-06-27
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Granted: 1960-09-27
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Szukiewicz Waclaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:48
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/60; C04B41/61; C04B41/70; Y; Y10; Y10S; Y10S264/00; Y10S264/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR BONDING FRESHLY APPLIED HYDRAULIC CEMENT MATERIAL TO AN OLD CEMENT SURFACE WHICH COMPRISES COATING THE OLD CEMENT SURFACE WITH A MIXTURE CONTAINING AN ADDUCT PREPARED BY REACTING A POLYOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF 300-2,300 WITH AN ORGANIC POLYISOCYANATE IN AN AMOUNT OF 1.8 TO 40 ISOCYANATE GROUPS FOR EACH HYDROXYL GROUP IN THE POLYOL, AND A RESIN-FORMING CATALYST, CURING THE RESULTING COATING BY EXPOSURE TO THE ATMOSPHERE UNTIL THE COATING BECOMES DRY AND TACKY, APPLYING FRESH WATER-CONTAINING HYDRAULIC CEMENT MATERIAL TO THE DRY AND TACKY COATING AND PERMITTING THE WATER-CONTAINING HYDRAULIC MATERIAL TO FORM A STRONG BOND WITH THE OLD CEMENT SURFACE.
Claim 2
Dependent Claim
109 words
A PROCESS FOR BONDING FRESHLY APPLIED HYDRAULIC CEMENT MATERIAL TO AN OLD CEMENT SURFACE WHICH COMPRISES COATING THE OLD CEMENT SURFACE WITH A MIXTURE CONTAINING AN ADDUCT PREPARED BY REACTING A POLYOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF 300-2,300 WITH AN ORGANIC POLYISOCYANATE IN AN AMOUNT OF 1.8 TO 40 ISOCYANATE GROUPS FOR EACH HYDROXYL GROUP IN THE POLYOL, AND A RESIN-FORMING CATALYST, CURING THE RESULTING COATING BY EXPOSURE TO THE ATMOSPHERE UNTIL THE COATING BECOMES DRY AND TACKY, APPLYING FRESH WATER-CONTAINING HYDRAULIC CEMENT MATERIAL TO THE DRY AND TACKY COATING AND PERMITTING THE WATER-CONTAINING HYDRAULIC MATERIAL TO FORM A STRONG BOND WITH THE OLD CEMENT SURFACE.
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) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |