US4212913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof coating system
Assignee: Individual
•
Filing: 1979-05-17
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Granted: 1980-07-15
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Expires: 1999-05-17
Abstract
Abstract A roof coating system having an underlayer of coating material, an intermediate layer of woven fiber glass fabric that includes strands of bulked yarn in a relatively loose weave, and an overlayer of coating material, with the fiber glass fabric being embedded in the coating system between the underlayer and overlayer. The coating material of the underlayer and overlayer contains water, a high solids thermoplastic acrylic emulsion, calcium carbonate, titanium dioxide, sodium salt of polymeric carboxylic acid, a wetting, emulsifying and stabilizing agent and defoamers, with zinc oxide being used if desired for mildew resistance.
Inventors
- 👤 Jerry P. Auten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:43
CPC Classifications
E; E04; E04D; E04D7/00; D; D06; D06N; D06N3/00; D06N3/04; D06N3/042; E04D13/00; E04D13/002; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/172; Y10T442/174; Y10T442/176; Y10T442/20; Y10T442/2525; Y10T442/2533; Y10T442/2926; Y10T442/2992; Y10T442/30; Y10T442/3179; Y10T442/322
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A roof coating system of high tensile strength and resilience comprising an underlayer of coating material, an intermediate layer of woven fiber glass fabric, and an overlayer of said coating material bonded to said underlayer with said intermediate fiber glass fabric layer embedded between said underlayer and overlayer, said woven fiber glass fabric including strands of bulked yarn in a relatively loose weave, and said coating material comprising an acrylic resin emulsion.
Claim 2
Dependent Claim
72 words
A roof coating system of high tensile strength and resilience comprising an underlayer of coating material, an intermediate layer of woven fiber glass fabric, and an overlayer of said coating material bonded to said underlayer with said intermediate fiber glass fabric layer embedded between said underlayer and overlayer, said woven fiber glass fabric including strands of bulked yarn in a relatively loose weave, and said coating material comprising an acrylic resin emulsion.
Claim 3
Dependent Claim
46 words
A roof coating system according to claim 1 and characterized further in that said intermediate layer of woven fiber glass fabric comprises said strands of bulked yarn as the filling ends of said fabric and strands of non-bulked yarn as the warp ends of said fabric.
Claim 4
Dependent Claim
32 words
A roof coating system according to either claim 1 or claim 2 and characterized further in that said woven fiber glass fabric has a weight of approximately 4 ounces per square inch.
Claim 5
Dependent Claim
36 words
A roof coating system according to either claim 1 or claim 2 and characterized further in that said woven fiber glass fabric comprises approximately 18 warp ends per inch and approximately 15 filling ends per inch.
Claim 6
Dependent Claim
56 words
A roof coating system according to either claim 1 or claim 2 and characterized further in that said woven fiber glass fabric comprises filling ends of 150 denier single yarn with a twist of approximately 0.7 turns per inch and warp ends of 150 denier single yarn with a twist of approximately 0.7 turns per inch.
Claim 7
Dependent Claim
42 words
A roof coating system according to claim 1 and characterized further in that said coating material comprises water, a high solids thermoplastic acrylic emulsion, calcium carbonate, titanium dioxide, sodium salt of polymeric carboxylic acid, a wetting, emulsifying and stabilizing agent and defoamers.
Claim 8
Dependent Claim
53 words
A roof coating system according to claim 1 and characterized further in that said coating material comprises in approximate percentages by weight: ______________________________________
Water 36%
High solids thermoplastic
acrylic emulsion 29%
Calcium carbonate 31%
Titanium dioxide 3%
Sodium salt of polymeric
carboxylic acid 0.3%
Wetting, emulsifying and
stabilizing agent 0.1%
Defoamers 0.5%
______________________________________
Claim 9
Dependent Claim
28 words
A roof coating system according to either claim 6 or claim 7 and characterized further in that said wetting, emulsifying and stabilizing agent is octyl phenol polyethoxy ethanol.
Claim 10
Dependent Claim
63 words
A roof coating system according to claim 1 and characterized further in that said coating material comprises the following components in the relative approximate quantities indicated: ______________________________________
Water 70 Gallons
High solids thermoplastic
acrylic emulsion 55 Gallons
Calcium carbonate 500 Pounds
Titanium dioxide 50 Pounds
Sodium salt of polymeric
carboxylic acid 4.8 Pounds
Octyl phenol polyethoxy
ethanol 1.4 Pounds
Defoamers 1 Gallon
______________________________________
Claim 11
Dependent Claim
30 words
A roof coating system according to either claim 7 or claim 9 and characterized further in that the water content of said coating material is reduced to approximately 50 gallons.
Claim 12
Dependent Claim
22 words
A roof coating system according to claim 6 and characterized further in that said coating material includes zinc oxide for mildew resistance.
Claim 13
Dependent Claim
25 words
A roof coating system according to claim 9 and characterized further in that said coating material includes zinc oxide in an amount of 25-75 pounds.
References Cited (Backward Citations)
US3395069A
Cited
US3398044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |