US4154887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treatment of rigid polyvinyl chloride
Assignee: GAF Building Materials Corp
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Filing: 1978-03-31
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Granted: 1979-05-15
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Expires: 1998-03-31
Abstract
Abstract Rigid polyvinyl chloride article and method for making same. The article comprises a substrate of PVC containing metallic soap of C8-C22 fatty acid which is coated with an anionic phosphate acid ester surfactant and then a protective top coat. The surfactant improves adhesion of the top coat.
Inventors
- 👤 Fred S. Morshauser
- 👤 Luther L. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C08K; C08K5/00; C08K5/04; C08K5/09; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; C08J2485/00; C08J2485/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
Method for treating the surface of a rigid polyvinyl chloride substrate containing between 0.3 and 3.0 pounds per hundred pounds resin of metallic soap C 8 -C 22 fatty acid, which method comprises coating said surface with a continuous layer of phosphate acid ester surfactant.
Claim 2
Dependent Claim
45 words
Method for treating the surface of a rigid polyvinyl chloride substrate containing between 0.3 and 3.0 pounds per hundred pounds resin of metallic soap C 8 -C 22 fatty acid, which method comprises coating said surface with a continuous layer of phosphate acid ester surfactant.
Claim 3
Dependent Claim
19 words
Method according to claim 1 wherein the continuous coating is between about 0.01 mil and about 1 mil thick.
Claim 4
Dependent Claim
12 words
Method according to claim 2 wherein the metallic soap is calcium stearate.
Claim 5
Dependent Claim
45 words
Method according to claim 3 wherein the layer of surfactant is applied to the substrate as an aqeuous dispersion in a layer between about 0.25 mil and about 2 mils thick and then dried to a thickness of between about 0.01 and about 1 mil.
Claim 6
Dependent Claim
17 words
Method according to claim 4 wherein the surfactant layer is then coated with a protective top coat.
Claim 7
Dependent Claim
72 words
Method for providing a protective coating on the surface of a rigid polyvinyl chloride substrate wherein the substrate contains between 0.3 and 3 pounds per hundred pounds resin of metallic coap of a C 8 -C 22 fatty acid, which method comprises the steps of: (a). coating the surface of the substrate with a continuous layer of phosphate acid ester surfactant; and (b). then coating the substrate with a protective top coat.
Claim 8
Dependent Claim
72 words
Method for providing a protective coating on the surface of a rigid polyvinyl chloride substrate wherein the substrate contains between 0.3 and 3 pounds per hundred pounds resin of metallic coap of a C 8 -C 22 fatty acid, which method comprises the steps of: (a). coating the surface of the substrate with a continuous layer of phosphate acid ester surfactant; and (b). then coating the substrate with a protective top coat.
Claim 9
Dependent Claim
19 words
Method according to claim 6 wherein the layer of surfactant is between about 0.01 and about 1 mil thick.
Claim 10
Dependent Claim
54 words
A rigid polyvinyl chloride article comprising: (a). a substrate of polyvinyl chloride containing between 0.3 and 3 pounds per hundred pounds resin metallic soap of C 8 -C 22 fatty acid; and (b). a protective or decorative top coat adhered to a surface of said substrate by a layer of phosphate acid ester surfactant.
Claim 11
Dependent Claim
54 words
A rigid polyvinyl chloride article comprising: (a). a substrate of polyvinyl chloride containing between 0.3 and 3 pounds per hundred pounds resin metallic soap of C 8 -C 22 fatty acid; and (b). a protective or decorative top coat adhered to a surface of said substrate by a layer of phosphate acid ester surfactant.
Claim 12
Dependent Claim
32 words
A rigid article according to claim 8 wherein the layer of surfactant is at least about 90% continuous and the layer of surfactant is between about 0.01 and about 1 mil thick.
Claim 13
Dependent Claim
14 words
A rigid article according to claim 9 wherein the metallic soap is calcium stearate.
References Cited (Backward Citations)
US3004056A
Cited
US3346670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |