US4250068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for coating glass containers
Assignee: Glass Containers Corp
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Filing: 1979-08-22
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Granted: 1981-02-10
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Expires: 1999-08-22
Abstract
Abstract A method of coating glass containers and a composition for such coating, wherein a one-step application of the coating is effected, with an aqueous mixture of a polyamino-acrylate ester, a cross-linking agent therefor, a wax, and a vinyl amino silane coupling agent applied to the container at a temperature of between about 200°-400° F. upon exit of the containers from an annealing lehr.
Inventors
- 👤 Syed R. Ali-Zaidi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C03C17/32; C09D133/14; C08; C08L; C08L43/00; C08L43/04; C08L61/00; C08L61/20; C08L61/32; C08L63/00; C08L91/00; C08L91/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A coating composition for improving the abrasion resistance and lubricity of glass containers, and having good adhesion thereto, comprising an aqueous mixture of a polyaminoacrylate ester, which is an acidified aminoethylated copolymer having pendant aminoalkylate groups of the formula: ##STR3## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen and lower alkyl radicals having 1 to 4 carbon atoms and the average value of n ranges from about 1.0 to 2.5 and wherein the copolymer before aminoethylation contains at least 3 percent by weight pendant --COOH groups; and a crosslinking agent therefore, which crosslinking agent is capable of reaction with and through the carboxyl groups of said polyaminoacrylate ester; a wax and a vinyl amino silane coupling agent.
Claim 2
Dependent Claim
124 words
A coating composition for improving the abrasion resistance and lubricity of glass containers, and having good adhesion thereto, comprising an aqueous mixture of a polyaminoacrylate ester, which is an acidified aminoethylated copolymer having pendant aminoalkylate groups of the formula: ##STR3## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen and lower alkyl radicals having 1 to 4 carbon atoms and the average value of n ranges from about 1.0 to 2.5 and wherein the copolymer before aminoethylation contains at least 3 percent by weight pendant --COOH groups; and a crosslinking agent therefore, which crosslinking agent is capable of reaction with and through the carboxyl groups of said polyaminoacrylate ester; a wax and a vinyl amino silane coupling agent.
Claim 3
Dependent Claim
36 words
A coating composition for improving the abrasion resistance and lubricity of glass containers as defined in claim 1 wherein said vinyl amino silane coupling agent comprises a silane compound having both vinyl and amino groups thereon.
Claim 4
Dependent Claim
49 words
A coating composition for improving the abrasion resistance and lubricity of glass containers as defined in claim 1 wherein said vinyl amino silane coupling agent comprises a mixture of silane compounds, one of which has a vinyl group thereon and the other of which has an amino group thereon.
Claim 5
Dependent Claim
24 words
The coating composition for improving the abrasion resistance and lubricity of glass containers as defined in claim 1 wherein said wax comprises carnauba wax.
Claim 6
Dependent Claim
41 words
A coating composition for improving the abrasion resistance and lubricity of glass containers as defined in claim 1 wherein said cross-linking agent is selected from the group consisting of urea-formaldehyde condensation product, melamine formaldehyde condensation product or epoxy resin cross-linking agents.
References Cited (Backward Citations)
US3900438A
Cited
US3835078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |