US4756956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed ceramic panel and method of producing the same
Assignee: Intelhearts Co Ltd
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Filing: 1987-10-02
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Granted: 1988-07-12
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Expires: 2007-10-02
Abstract
Abstract A foamed ceramic panel having a base layer comprising foamed inorganic raw materials and a fine glass layer comprising fused and solidified ceramic paper and formed on at least one surface of the base layer. A layer of heat-foamable inorganic raw materials and the ceramic paper laminated on the surface of the layer of heat-foamable inorganic raw materials are simultaneously burned and fused together. In producing the panel, the glossiness of the surface of the panel is improved by quenching the foamed panel and re-heating the same to a softening temperature. The panels are applicable to interior or exterior materials for various kinds of buildings, art ceramic panels for decoration, and the like.
Inventors
- 👤 Satoru Nagai
- 👤 Kazuo Imahashi
- 👤 Yoshio Nagaya
- 👤 Shigeo Yoshida
- 👤 Satoshi Kitagawa
- 👤 Takatoshi Miyazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:21
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; B; B32; B32B; B32B18/00; C04B41/45; C04B41/50; C04B41/5022; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/38; C04B2237/50; C04B2237/68; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/24997; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A foamed ceramic panel having a base layer comprising foamed inorganic raw materials, and a fine glass layer comprising fused and solidified ceramic paper and formed on at least one surface of the base layer, a layer of heat-foamable inorganic raw materials and the ceramic paper laminated on the surface of the layer of heat-foamable inorganic raw materials being sumultaneously burned and fused together.
Claim 2
Dependent Claim
64 words
A foamed ceramic panel having a base layer comprising foamed inorganic raw materials, and a fine glass layer comprising fused and solidified ceramic paper and formed on at least one surface of the base layer, a layer of heat-foamable inorganic raw materials and the ceramic paper laminated on the surface of the layer of heat-foamable inorganic raw materials being sumultaneously burned and fused together.
Claim 3
Dependent Claim
24 words
The panel of claim 1, wherein the ceramic paper comprises inorganic powdery raw materials and at least one of almina fibers and mullite fibers.
Claim 4
Dependent Claim
19 words
The panel of claim 1, wherein the ceramic paper comprises inorganic powdery raw materials, inorganic fibers, and pulp fibers.
Claim 5
Dependent Claim
13 words
The panel of claim 1, wherein the ceramic paper further includes coloring materials.
Claim 6
Dependent Claim
13 words
The panel of claim 4, wherein the coloring material is a metal oxide.
Claim 7
Dependent Claim
12 words
The panel of claim 4, wherein the coloring material is a pigment.
Claim 8
Dependent Claim
18 words
The panel of claim 1, wherein an emboss pattern is given on the surface of the cermaic paper.
Claim 9
Dependent Claim
20 words
The panel of claim 1, wherein a pattern is printed on the surface of the ceramic paper with inorganic pigments.
Claim 10
Independent Claim
64 words
A method of producing a foamed ceramic panel comprising laminating ceramic paper on at least one surface of a base layer comprising heat-foamable inorganic raw materials, burning the ceramic paper and base layer simultaneously to fuse together, quenching both surfaces of the foamed ceramic panel just after the fusing, and re-heating surface of the foamed ceramic panel to a softening temperature of the panel.
Claim 11
Independent Claim
64 words
A method of producing a foamed ceramic panel comprising laminating ceramic paper on at least one surface of a base layer comprising heat-foamable inorganic raw materials, burning the ceramic paper and base layer simultaneously to fuse together, quenching both surfaces of the foamed ceramic panel just after the fusing, and re-heating surface of the foamed ceramic panel to a softening temperature of the panel.
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) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |