Patent US4725501A successfully refreshed from Google Patents.
US4725501A
Expired / Lapsed
US
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Primer for adherence to plastic substrates
Assignee: PPG Industries Ohio Inc
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Filing: 1985-05-28
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Granted: 1988-02-16
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Expires: 2005-05-28
Abstract
Abstract A silicate/titanate copolymer is disclosed for use as a primer in adhering rigid polymer substrates to elastomeric interlayers or inorganic coatings.
Inventors
- 👤 Thomas G. Rukavina
- 👤 Chia-Cheng Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:34
CPC Classifications
C; C09; C09D; C09D185/00; C08; C08G; C08G79/00; C08J; C08J5/00; C08J5/12; C08J5/124; C09D4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
A laminated product comprising: a. a rigid polymeric substrate; b. an elastomeric interlayer adhered to said substrate; and c. between said polymeric substrate and said elastomeric interlayer, a primer comprising a silicate/titanate inorganic copolymer.
Claim 2
Dependent Claim
34 words
A laminated product comprising: a. a rigid polymeric substrate; b. an elastomeric interlayer adhered to said substrate; and c. between said polymeric substrate and said elastomeric interlayer, a primer comprising a silicate/titanate inorganic copolymer.
Claim 3
Dependent Claim
22 words
A laminated product according to claim 1, wherein said rigid polymeric substrate is selected from the group consisting of polyacrylates and polycarbonates.
Claim 4
Dependent Claim
14 words
A laminated product according to claim 1, wherein said interlayer is a vinyl polymer.
Claim 5
Dependent Claim
20 words
A laminated product according to claim 1, wherein said primer is a reaction product of tetraethylorthosilicate and titanium (IV) butoxide.
Claim 6
Dependent Claim
31 words
A coated product comprising: a. a rigid organic polymeric substrate; b. an inorganic coating on said substrate; and c. between said substrate and said coating a primer comprising a silicate/titanate copolymer.
Claim 7
Dependent Claim
31 words
A coated product comprising: a. a rigid organic polymeric substrate; b. an inorganic coating on said substrate; and c. between said substrate and said coating a primer comprising a silicate/titanate copolymer.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |