Patent US4045395A successfully refreshed from Google Patents.
US4045395A
Expired / Lapsed
US
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Adhesive composition
Assignee: Roby's Enterprises Inc
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Filing: 1976-03-01
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Granted: 1977-08-30
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Expires: 1996-03-01
Abstract
Abstract A water impervious surfacing composition which includes cement and sand and a mixture of an aqueous coal tar emulsion and an aqueous polyvinyl acetate emulsion.
Inventors
- 👤 Ray I. Roby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:39
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B28/00; C04B28/02; C04B41/45; C04B41/50; C04B41/5076; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08L; C08L31/00; C08L31/02; C08L31/04; C08L95/00; C08L95/005; E; E01; E01C; E01C11/00; E01C11/005; E01C7/00; E01C7/08; E01C7/35; E01C7/358; C08L2201/00; C08L2201/52
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A water-resistant adhesive composition which is essentially a mixture of an aqueous coal tar emulsion having a nonvolatile content by chemical analysis and an aqueous polyvinly acetate emulsion having a solids content by chemical analysis, the ratio of the coal tar nonvolatiles to polyvinyl acetate solids in said mixture ranging from about 0.3 to 2.5:1, and sufficient water to produce a ratio of water to combined coal tar nonvolatiles and polyvinyl acetate solids in said composition within the range of about 2 to 4:1.
Claim 2
Dependent Claim
84 words
A water-resistant adhesive composition which is essentially a mixture of an aqueous coal tar emulsion having a nonvolatile content by chemical analysis and an aqueous polyvinly acetate emulsion having a solids content by chemical analysis, the ratio of the coal tar nonvolatiles to polyvinyl acetate solids in said mixture ranging from about 0.3 to 2.5:1, and sufficient water to produce a ratio of water to combined coal tar nonvolatiles and polyvinyl acetate solids in said composition within the range of about 2 to 4:1.
Claim 3
Dependent Claim
40 words
A water impervious surfacing composition comprising 1 part cement, 3 to 6 parts sand, and a sufficient amount of the composition recited in claim 1 to introduce from 0.25 to 1.25 parts combined coal tar nonvolatiles and polyvinyl acetate solids.
Claim 4
Dependent Claim
74 words
A cement base, water impervious surfacing composition which is essentially a mixture of 1 part cement, 3 to 6 parts sand, from 0.75 to 3 water, nonvolatiles of an aqueous coal tar emulsion, and the solids of an aqueous polyvinyl acetate emulsion, said composition containing from 0.25 to 1.25 parts combined coal tar nonvolatiles and polyvinyl acetate solids, the ratio of coal tar nonvolatiles to polyvinyl acetate solids ranging from about 0.3 to 2.5:1.
Claim 5
Dependent Claim
74 words
A cement base, water impervious surfacing composition which is essentially a mixture of 1 part cement, 3 to 6 parts sand, from 0.75 to 3 water, nonvolatiles of an aqueous coal tar emulsion, and the solids of an aqueous polyvinyl acetate emulsion, said composition containing from 0.25 to 1.25 parts combined coal tar nonvolatiles and polyvinyl acetate solids, the ratio of coal tar nonvolatiles to polyvinyl acetate solids ranging from about 0.3 to 2.5:1.
Claim 6
Dependent Claim
17 words
The surfacing composition of claim 3 wherein the polyvinyl acetate solids exceeds the coal tar emulsion nonvolatiles.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |