US3873351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of non-combustible shaped articles
Assignee: Sekisui Chemical Co Ltd
•
Filing: 1973-04-12
•
Granted: 1975-03-25
•
Expires: 1993-04-12
Abstract
Abstract A non-combustible shaped article which is composed of the base material shaped of a mixture comprising a hydraulic inorganic composition consisting of a water-insoluble inorganic substance composed predominantly of silica and another inorganic substance composed predominantly of calcium oxide, and mineral fibers, under addition of water, and a surface material integrally bound on at least one surface of said base material, which is applied to said surface as an aqueous dispersion of a hydraulic inorganic composition consisting of a water-insoluble inorganic substance composed predominantly of silica and another inorganic substance composed predominantly of calcium oxide, or of the mixture of said hydraulic inorganic composition with at least one member of the group consisting of water-soluble silicate compound, zirconium compound and alkali metal hydroxide, and then hardened under heating as an integral structure, and a process for the preparation thereof.
Inventors
- 👤 Harutoshi Ueda
- 👤 Naoyuki Suzuki
- 👤 Masami Nagao
- 👤 Satoshi Shiroza
- 👤 Hiroshi Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:46
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/60; C04B41/61; C04B41/65; C04B41/68; C04B28/00; C04B28/18; C04B41/45; C04B41/50; C04B41/5076
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
56 words
A PROCESS FOR THE PREPARATION OF A NON-COMBUSTIBLE SHAPED ARTICLE WHICH IS COMPOSED OF A BASE MATERIAL, AND A SURFACE MATERIAL INTEGRALLY BOUND ON AT LEAST ONE SURFACE OF SAID BASE MATERIAL, WHICH IS APPLIED TO SAID SURFACE AS AN AQUEOUS DISPERSION AND THEN HARDENED UNDER HEATING AS AN INTEGRAL STRUCTURE, WHICH COMPRISES THE STEPS OF:
Claim 2
Dependent Claim
56 words
A PROCESS FOR THE PREPARATION OF A NON-COMBUSTIBLE SHAPED ARTICLE WHICH IS COMPOSED OF A BASE MATERIAL, AND A SURFACE MATERIAL INTEGRALLY BOUND ON AT LEAST ONE SURFACE OF SAID BASE MATERIAL, WHICH IS APPLIED TO SAID SURFACE AS AN AQUEOUS DISPERSION AND THEN HARDENED UNDER HEATING AS AN INTEGRAL STRUCTURE, WHICH COMPRISES THE STEPS OF:
Claim 3
Dependent Claim
34 words
ADDING TO A HYDRAULIC INORGRANIC COMPOSITION CONSISTING OF A WATER-INSOLUBLE INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF SILICA AND ANOTHER INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF CALCIUM OXIDE, MINERAL FIBERS AND WATER, AND THOROUGHLY MIXING THE COMPONENTS,
Claim 4
Dependent Claim
34 words
ADDING TO A HYDRAULIC INORGRANIC COMPOSITION CONSISTING OF A WATER-INSOLUBLE INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF SILICA AND ANOTHER INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF CALCIUM OXIDE, MINERAL FIBERS AND WATER, AND THOROUGHLY MIXING THE COMPONENTS,
Claim 5
Dependent Claim
3 words
SHAPING A MIXTURE,
Claim 6
Dependent Claim
3 words
SHAPING A MIXTURE,
Claim 7
Dependent Claim
42 words
A process according to claim 1 wherein the aqueous dispersion in step (3) is prepared by mixing the hydraulic inorganic composition with at least one member selected from group consisting of a water-soluble silicate, a zirconium compound, and an alkali metal hydroxide.
Claim 8
Dependent Claim
3 words
shaping the mixture,
Claim 9
Dependent Claim
3 words
shaping the mixture,
Claim 10
Dependent Claim
32 words
SEPARATELY PREPARING AN AQUEOUS DISPERSION BY DISPERSING IN WATER A HYDRAULIC INORGANIC COMPOSITION CONSISTING OF A WATER-INSOLUBLE INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF SILICA AND ANOTHER INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF CALCIUM OXIDE.
Claim 11
Dependent Claim
32 words
SEPARATELY PREPARING AN AQUEOUS DISPERSION BY DISPERSING IN WATER A HYDRAULIC INORGANIC COMPOSITION CONSISTING OF A WATER-INSOLUBLE INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF SILICA AND ANOTHER INORGANIC SUBSTANCE COMPOSED PREDOMINANTLY OF CALCIUM OXIDE.
Claim 12
Dependent Claim
31 words
A process according to claim 1 wherein the aqueous dispersion in step (3) is prepared by mixing the hydraulic inorganic composition with a resinous additive, an inorganic pigment or mixtures thereof.
Claim 13
Dependent Claim
32 words
separately preparing an aqueous dispersion by dispersing in water a hydraulic inorganic composition consisting of a water-insoluble inorganic substance composed predominantly of silica and another inorganic substance composed predominantly of calcium oxide.
Claim 14
Dependent Claim
32 words
separately preparing an aqueous dispersion by dispersing in water a hydraulic inorganic composition consisting of a water-insoluble inorganic substance composed predominantly of silica and another inorganic substance composed predominantly of calcium oxide.
Claim 15
Dependent Claim
21 words
A process according to claim 2 wherein the aqueous dispersion further contains a resinous additive, an inorganic pigment or mixtures thereof.
Claim 16
Dependent Claim
18 words
APPLYING THE AQUEOUS DISPERSION ONTO AT LEAST ONE SURFACE OF THE BASE MATERIAL SHAPED IN ABOVE STEP (2),
Claim 17
Dependent Claim
18 words
APPLYING THE AQUEOUS DISPERSION ONTO AT LEAST ONE SURFACE OF THE BASE MATERIAL SHAPED IN ABOVE STEP (2),
Claim 18
Dependent Claim
18 words
applying the aqueous dispersion onto at least one surface of the base material shaped in above step (2),
Claim 19
Dependent Claim
18 words
applying the aqueous dispersion onto at least one surface of the base material shaped in above step (2),
Claim 20
Dependent Claim
21 words
removing the water content from the base material and the surface material thereto under a pressure of 50 to 500 kg/cm2,
Claim 21
Dependent Claim
21 words
removing the water content from the base material and the surface material thereto under a pressure of 50 to 500 kg/cm2,
Claim 22
Dependent Claim
36 words
A process according to claim 1 in which the hydraulic inorganic composition further contains alumina in either the base material or surface composition prepared in step (3) or in both the base material and surface composition.
Claim 23
Dependent Claim
21 words
REMOVING THE WATER CONTENT FROM THE BASE MATERIAL AND THE SURFACE MATERIAL THERETO UNDER A PRESSURE OF 50 TO 500 KG/CM2,
Claim 24
Dependent Claim
21 words
REMOVING THE WATER CONTENT FROM THE BASE MATERIAL AND THE SURFACE MATERIAL THERETO UNDER A PRESSURE OF 50 TO 500 KG/CM2,
Claim 25
Dependent Claim
23 words
converting the resulting structure of semi-hardened shaped article by a primary aging thereof at 60*-90*C under atmospheric pressure, for 5 to 10 hours,
Claim 26
Dependent Claim
23 words
converting the resulting structure of semi-hardened shaped article by a primary aging thereof at 60*-90*C under atmospheric pressure, for 5 to 10 hours,
Claim 27
Dependent Claim
36 words
A process according to claim 2 in which the hydraulic inorganic composition further contains alumina in either the base material or surface composition prepared in step (3) or in both the base material and surface composition.
Claim 28
Dependent Claim
23 words
CONVERTING THE RESULTING STRUCTURE OF SEMI-HARDENED SHAPED ARTICLE BY A PRIMARY AGING THEREOF AT 60*-90*C UNDER ATMOSPHERIC PRESSURE, FOR 5 TO 10 HOURS,
Claim 29
Dependent Claim
23 words
CONVERTING THE RESULTING STRUCTURE OF SEMI-HARDENED SHAPED ARTICLE BY A PRIMARY AGING THEREOF AT 60*-90*C UNDER ATMOSPHERIC PRESSURE, FOR 5 TO 10 HOURS,
Claim 30
Dependent Claim
36 words
A process according to claim 3 in which the hydraulic inorganic composition further contains alumina in either the base material or surface composition prepared in step (3) or in both the base material and surface composition.
Claim 31
Dependent Claim
27 words
and subjecting the semi-hardened shaped article further to a secondary aging at 150*-210*C under a steam pressure of 5 to 20 atmospheres, for 5 to 20 hours.
Claim 32
Dependent Claim
27 words
and subjecting the semi-hardened shaped article further to a secondary aging at 150*-210*C under a steam pressure of 5 to 20 atmospheres, for 5 to 20 hours.
Claim 33
Dependent Claim
29 words
AND SUBJECTING THE SEMI-HARDENED SHAPED ARTICLE FURTHER TO A SECONDARY AGING AT 150* - 210*C UNDER A STEAM PRESSURE OF 5 TO 20 ATMOSPHERES, FOR 5 TO 20 HOURS.
Claim 34
Dependent Claim
29 words
AND SUBJECTING THE SEMI-HARDENED SHAPED ARTICLE FURTHER TO A SECONDARY AGING AT 150* - 210*C UNDER A STEAM PRESSURE OF 5 TO 20 ATMOSPHERES, FOR 5 TO 20 HOURS.
Claim 35
Dependent Claim
36 words
A process according to claim 4 in which the hydraulic inorganic composition further contains alumina in either the base material or surface composition prepared in step (3) or in both the base material and surface composition.
Claim 36
Dependent Claim
64 words
A process according to claim 1 wherein the mol ratio of the calcium oxide to silica in the base material is in the range of 0.5 to 2.0 and wherein the mol ratio of calcium oxide to silica in the hydraulic inorganic composition of step (3) to be applied to the surface of the base material is in the range of 0.8 to 4.0.
Claim 37
Dependent Claim
64 words
A process according to claim 2 wherein the mol ratio of the calcium oxide to silica in the base material is in the range of 0.5 to 2.0 and wherein the mol ratio of calcium oxide to silica in the hydraulic inorganic composition of step (3) to be applied to the surface of the base material is in the range of 0.8 to 4.0.
Claim 38
Dependent Claim
17 words
The process according to claim 1 wherein in step (1), organic fibers are added to the composition.
References Cited (Backward Citations)
US2358701A
Cited
US2549516A
Cited
US2698251A
Cited
US2946158A
Cited
US2946695A
Cited
US3501323A
Cited
US3285757A
Cited
US3488209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |