Patent DE707457C successfully refreshed from Google Patents.
US5019448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite panel
Assignee: Intec Plastic Products GmbH
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Filing: 1988-08-22
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Granted: 1991-05-28
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Expires: 2008-08-22
Abstract
Abstract A composite panel from which an internal bathtub casing can be manufactured by deep drawing, in which a coating of poly(methyl methacrylate) (PMMA, acrylic glass) is placed on a substrate of acrylonitrile-butadiene-styrene (ABS) in particular, which coating is provided with a top coat which consists of 30-70 weight % polyvinylidene fluoride (PVDF), and the remainder of poly(methyl methacrylate).
Inventors
- 👤 Wilhelm Kleosch
- 👤 Dietmar Plobst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:34
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/302; B32B27/304; B32B27/308; B32B2333/00; B32B2333/04; B32B2333/12; B32B2355/00; B32B2355/02; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A composite panel from which an internal bathtub casing can be manufactured by deep drawing, which panel comprises an acrylonitrile-butadiene-styrene substrate, a coating of poly(methyl methacrylate) on said substrate, and a top coat having a thickness of from more than 0.1 mm to less than 0.5 mm on said coating, which top coat consists of a mixture of 30-70 weight % of polyvinylidene fluoride and the remainder of poly(methyl methacrylate).
Claim 2
Dependent Claim
70 words
A composite panel from which an internal bathtub casing can be manufactured by deep drawing, which panel comprises an acrylonitrile-butadiene-styrene substrate, a coating of poly(methyl methacrylate) on said substrate, and a top coat having a thickness of from more than 0.1 mm to less than 0.5 mm on said coating, which top coat consists of a mixture of 30-70 weight % of polyvinylidene fluoride and the remainder of poly(methyl methacrylate).
Claim 3
Dependent Claim
66 words
An internal bathtub casing manufactured by deep drawing a composite panel, which panel comprises an acrylonitrile-butadiene-styrene substrate, a coating of poly(methyl methacrylate) on said substrate, and a top coat having a thickness of from more than 0.1 mm to less than 0.5 mm on said coating, which top coat consists of a mixture of 30-70 weight % of polyvinylidene fluoride and the remainder of poly(methyl methacrylate).
Claim 4
Dependent Claim
66 words
An internal bathtub casing manufactured by deep drawing a composite panel, which panel comprises an acrylonitrile-butadiene-styrene substrate, a coating of poly(methyl methacrylate) on said substrate, and a top coat having a thickness of from more than 0.1 mm to less than 0.5 mm on said coating, which top coat consists of a mixture of 30-70 weight % of polyvinylidene fluoride and the remainder of poly(methyl methacrylate).
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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |