Patent US3411943A successfully refreshed from Google Patents.
US3411943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the improvement of bond strengths between brick or metallic surfaces andcementitious materials
Assignee: Dow Chemical Co
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Filing: 1965-12-02
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Granted: 1968-11-19
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Expires: 1985-12-02
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Bragg
- 👤 Dallas G Grenley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:37
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/4838; C04B41/4857; C04B41/52; C09; C09J; C09J127/00; C09J127/02; C09J127/04; C09J127/08; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/00637
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS FOR PROMOTING THE ADHESION OF CEMENTITIOUS MATERIAL TO BRICK OR METALLIC SURFACES WHICH COMPRISES THE SEQUENTIAL STEPS OF (1) APPLYING TO SAID SURFACES AN ESSENTIALLY CONTINUOUS COATING OF A THERMOPLASTIC VINYLIDENE CHLORIDE INTERPOLYMERIC LATEX CONSISTING ESSENTIALLY OF FROM ABOUT 35 TO 90 PERCENT BY WEIGHT OF VINYLIDENE CHLORIDE AND FROM ABOUT 65 TO ABOUT 10 PERCENT BY WEIGHT OF A DISSIMILAR INTERPOLYMERIZABLE COMONOMER, AS BASED ON A TOTAL INTERPOLYMER LATEX SOLIDS CONTENT OF 100 PERCENT BY WEIGHT, (2) ALLOWING SAID COATING TO DRY TO A FILM, (3) APPLYING AN AQUEOUS HYDRAULIC CEMENTITIOUS MATERIAL TO THE COATED SURFACES, AND (4) ALLOWING SAID CEMENTITIOUS MATERIAL TO HARDEN.
Claim 2
Dependent Claim
107 words
A PROCESS FOR PROMOTING THE ADHESION OF CEMENTITIOUS MATERIAL TO BRICK OR METALLIC SURFACES WHICH COMPRISES THE SEQUENTIAL STEPS OF (1) APPLYING TO SAID SURFACES AN ESSENTIALLY CONTINUOUS COATING OF A THERMOPLASTIC VINYLIDENE CHLORIDE INTERPOLYMERIC LATEX CONSISTING ESSENTIALLY OF FROM ABOUT 35 TO 90 PERCENT BY WEIGHT OF VINYLIDENE CHLORIDE AND FROM ABOUT 65 TO ABOUT 10 PERCENT BY WEIGHT OF A DISSIMILAR INTERPOLYMERIZABLE COMONOMER, AS BASED ON A TOTAL INTERPOLYMER LATEX SOLIDS CONTENT OF 100 PERCENT BY WEIGHT, (2) ALLOWING SAID COATING TO DRY TO A FILM, (3) APPLYING AN AQUEOUS HYDRAULIC CEMENTITIOUS MATERIAL TO THE COATED SURFACES, AND (4) ALLOWING SAID CEMENTITIOUS MATERIAL TO HARDEN.
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |