US4127556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic fiber molding for manifold reactors
Assignee: Toyota Motor Corp
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Filing: 1976-09-22
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Granted: 1978-11-28
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Expires: 1996-09-22
Abstract
Abstract Ceramic fiber molding for manifold reactors in which Al2O3-SiO2 ceramic fibers or SiO2 ceramic fibers are employed to form a molded product having a hardness of 20 DEG - 55 DEG , a tensile strength of 120 - 1500 g/cm2 and a molded density of 0.06 - 0.35 g/cm3.
Inventors
- 👤 Kenji Ushitani
- 👤 Fumiyoshi Noda
- 👤 Toshikazu Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:44
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; B; B01; B01J; B01J35/00; B01J35/50; B01J35/58; B01J37/00; B01J37/0009; C; C04; C04B; C04B14/00; C04B14/38; C04B14/46; C04B26/00; C04B26/02; C04B28/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
54 words
A ceramic fiber molding comprising Al 2 O 3 --SiO 2 or SiO 2 ceramic fibers and a binder molded into a product having a hardness of 20°-55° as measured by the Japan Rubber Association Standard SRIS-0101, a tensile strength of 120-1500 g/cm 2 , and a molded density of 0.06-0.35 g/cm 3 .
Claim 2
Dependent Claim
54 words
A ceramic fiber molding comprising Al 2 O 3 --SiO 2 or SiO 2 ceramic fibers and a binder molded into a product having a hardness of 20°-55° as measured by the Japan Rubber Association Standard SRIS-0101, a tensile strength of 120-1500 g/cm 2 , and a molded density of 0.06-0.35 g/cm 3 .
Claim 3
Dependent Claim
31 words
The ceramic fiber molding of claim 1, in which the molded density is in the range of 0.15-0.35 g/cm 3 and the fibers are Al 2 O 3 --SiO 2 .
Claim 4
Dependent Claim
27 words
The ceramic fiber molding of claim 1, in which the molded density is in the range of 0.06-0.20 g/cm 3 and the fibers are SiO 2 .
Claim 5
Dependent Claim
27 words
The ceramic fiber molding of claim 1, in which the binder employed is selected from the group consisting of Al 2 O 3 sol and silica sol.
Claim 6
Dependent Claim
28 words
The ceramic fiber molding of claim 1, in which the binder employed is selected from the group consisting of starch, polyvinyl alcohol, phenol resin and carboxy methyl cellulose.
Claim 7
Independent Claim
62 words
A method of manufacturing a ceramic fiber molding comprising adding a binder to ceramic fibers selected from the group consisting of Al 2 O 3 --SiO 2 and SiO 2 ceramic fibers, and solidifying the resulting mixture to form a product having a hardness of 20°-55°, a tensile strength of 120-1500 g/cm 2 and a molded density of 0.06-0.35 g/cm 3 .
Claim 8
Independent Claim
62 words
A method of manufacturing a ceramic fiber molding comprising adding a binder to ceramic fibers selected from the group consisting of Al 2 O 3 --SiO 2 and SiO 2 ceramic fibers, and solidifying the resulting mixture to form a product having a hardness of 20°-55°, a tensile strength of 120-1500 g/cm 2 and a molded density of 0.06-0.35 g/cm 3 .
Claim 9
Dependent Claim
25 words
The method of claim 6, in which a molded product is obtained by suction filtering of a solution of said ceramic fibers in said binder.
Claim 10
Dependent Claim
19 words
The method of claim 6, in which the ceramic fibers are 5.6-33 mm in length and 2.5-4.5μ in diameter.
Claim 11
Dependent Claim
15 words
The ceramic fiber molding of claim 1, which contains 2-6% by weight of said binder.
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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |