US4581292A
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Synthetic amorphous zirconium-bonded silicate and method for making same
Assignee: Lion Corp
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Filing: 1984-08-09
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Granted: 1986-04-08
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Expires: 2004-08-09
Abstract
Abstract The present invention provides a synthetic amorphous zirconium-bonded silicate obtained by reacting, as main starting materials, a water-soluble alkali-metal silicate with an inorganic zirconyl salt and a mineral acid, in which zirconium is bonded to silica at the ratio of ZrO 2 to SiO 2 being 0.1 to 10 weight percent, which silicate is useful as a dentifrice base material and also as a filler for rubber.
Inventors
- 👤 Shozo Shinpo
- 👤 Tetsuo Fushino
- 👤 Akihiro Hachijo
- 👤 Shozo Ohtsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:10
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/28; A61Q; A61Q11/00; C08; C08K; C08K3/00; C08K3/34; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
91 words
A synthetic amorphous zirconium-bonded silicate obtained by reacting, as main starting materials, a water-soluble alkali-metal silicate with an inorganic zirconyl salt and a mineral acid, in which zirconium is bonded to silica at the ratio of ZrO 2 to SiO 2 being 0.1 to 10 weight percent and wherein the synthetic amorphous zirconium-bonded silicate contains aggregated particles composed of primary particles, the average particle diameter of the primary particles of said silicate being 0.01 to 0.5 μm and the average particle diameter of the aggregated particles being 1.5 to 30 μm.
Claim 2
Dependent Claim
91 words
A synthetic amorphous zirconium-bonded silicate obtained by reacting, as main starting materials, a water-soluble alkali-metal silicate with an inorganic zirconyl salt and a mineral acid, in which zirconium is bonded to silica at the ratio of ZrO 2 to SiO 2 being 0.1 to 10 weight percent and wherein the synthetic amorphous zirconium-bonded silicate contains aggregated particles composed of primary particles, the average particle diameter of the primary particles of said silicate being 0.01 to 0.5 μm and the average particle diameter of the aggregated particles being 1.5 to 30 μm.
Claim 3
Dependent Claim
16 words
The silicate as claimed in claim 1 obtained by starting the reaction from the alkaline side.
Claim 4
Dependent Claim
40 words
The silicate as claimed in claim 1, of which the specific surface area by the BET method is 5 to 800 m 2 /g, and the specific surface area by the CTAB method is 5 to 300 m 2 /g.
Claim 5
Dependent Claim
18 words
The silicate as claimed in claim 1, of which the apparent specific gravity if 0.1 to 0.9 g/ml.
Claim 6
Dependent Claim
17 words
The silicate as claimed in claim 1, of which the liquid absorptivity is 0.4 to 2.8 ml/g.
Claim 7
Dependent Claim
16 words
The silicate as claimed in claim 1, of which the refractive index is 1.40 to 1.50.
Claim 8
Dependent Claim
17 words
The silicate as claimed in claim 1, of which the micropore volume is 0.5 to 6.0 cc/g.
Claim 9
Dependent Claim
30 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting, as main starting materials, a water-soluble alkali-metal silicate with an inorganic water-soluble zirconyl salt and a mineral acid.
Claim 10
Dependent Claim
30 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting, as main starting materials, a water-soluble alkali-metal silicate with an inorganic water-soluble zirconyl salt and a mineral acid.
Claim 11
Dependent Claim
16 words
The process as claimed in claim 8, characterized by starting the reaction from the alkaline side.
Claim 12
Dependent Claim
17 words
The process as claimed in claim 8 wherein the reaction temperature is from 50° to 100° C.
Claim 13
Dependent Claim
20 words
The process as claimed in claim 8 wherein the pH at the completion of the reaction is 2 to 8.
Claim 14
Dependent Claim
40 words
The process as claimed in claim 8 wherein the use ratio of the ZrO 2 of the inorganic water-soluble zirconyl salt to the SiO 2 of the water-soluble alkali-metal silicate is in the range of 0.1 to 10 weight %.
Claim 15
Dependent Claim
24 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting a solution of a water-soluble alkali-metal silicate with a zirconium-containing mineral acid.
Claim 16
Dependent Claim
24 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting a solution of a water-soluble alkali-metal silicate with a zirconium-containing mineral acid.
Claim 17
Dependent Claim
16 words
The process as claimed in claim 13 characterized by starting the reaction from the alkaline side.
Claim 18
Dependent Claim
24 words
The process as claimed in claim 13 wherein the zirconium-containing mineral acid is a mixture of a water-soluble zirconyl salt and a mineral acid.
Claim 19
Dependent Claim
16 words
The process as claimed in claim 13 wherein the reaction temperature is 50° to 100° C.
Claim 20
Dependent Claim
20 words
The process as claimed in claim 13 wherein the pH at the completion of the reaction is 2 to 8.
Claim 21
Dependent Claim
39 words
The process as claimed in claim 13 wherein the use ratio of the ZrO 2 of the zirconium-containing mineral acid to the SiO 2 of the water-soluble alkali-metal silicate is in the range of 0.1 to 10 weight percent.
Claim 22
Dependent Claim
22 words
The process as claimed in claim 13 wherein the acid concentration of the zirconium-containing mineral acid is 5 to 15 weight percent.
Claim 23
Dependent Claim
28 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting a water-soluble alkali-metal silicate solution with a zirconium-containing mineral acid in the presence of an electrolyte.
Claim 24
Dependent Claim
28 words
A process for producing a synthetic amorphous zirconium-bonded silicate characterized by reacting a water-soluble alkali-metal silicate solution with a zirconium-containing mineral acid in the presence of an electrolyte.
Claim 25
Dependent Claim
16 words
The process as claimed in claim 20 characterized by starting the reaction from the alkaline side.
Claim 26
Dependent Claim
16 words
The process as claimed in claim 20 wherein the reaction temperature is 60° to 100° C.
Claim 27
Dependent Claim
20 words
The process as claimed in claim 20 wherein the pH at the completion of the reaction is 2 to 8.
Claim 28
Dependent Claim
34 words
The process as claimed in claim 20 wherein the amount of the electrolyte present in the reaction system is 5 to 60 weight % based on the SiO 2 of the alkali-metal silicate solution.
Claim 29
Dependent Claim
18 words
The process as claimed in claim 20 wherein the electrolyte is a mineral acid salt of an alkali-metal.
Claim 30
Dependent Claim
20 words
The process as claimed in claim 20 characterized in that the electrolyte is contained in the alkali-metal silicate solution previously.
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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |