US4089883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of organic hydroxy silicate compounds and their condensation products
Assignee: Individual
•
Filing: 1977-02-02
•
Granted: 1978-05-16
•
Expires: 1997-02-02
Abstract
Abstract A dry granular alkali metal metasilicate is chemically reacted with a concentrated acid or an acid hydrogen containing salt to produce white granular silicic acid compounds which will react chemically with a polyhydroxy alcohol by using an alkaline compound as a catalyst and by heating the mixture.
Inventors
- 👤 David H. Blount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:23
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/08; C08F290/14; C08F290/148; C07; C07F; C07F7/00; C07F7/02; C07F7/025; C07F7/04; C07F7/08; C07F7/0834; C07F7/0838; C07F7/18; C08F299/00; C08F299/02; C08F299/08; C08F30/00; C08F30/04; C08F30/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
197 words
The process for the production of organic hydroxy silicate compounds and their condensation products by the following steps: (a) adding about 100 parts by weight of dry granular alkali metal metasilicate slowly to 50 parts by weight of concentrated sulfuric acid; (b) agitating said mixture to keep the temperature below 100° C and oxygen evolves from the mixture, thereby (c) producing a white granular mixture of a silicic acid compound and alkali metal sulfate; (d) washing said mixture with water, then filtering the mixture to remove the alkali metal sulfate and then air drying at 25° to 75° C, leaving a fine white granular silicic acid compound; (e) mixing about 50 parts by weight of said silicic acid compound with about 30 to 100 parts by weight of a polyhydroxy alcohol compound; (f) adding an alkali catalyst in the ratio of 1% to 10% by weight of the silicic acid compound and polyhydroxy alcohol compound; (g) heating the said mixture to just below the boiling point of the polyhydroxy alcohol while agitating for about 20 to 90 minutes, thereby (h) producing a brown mixture of an organic hydroxy silicate compound and a poly (organic hydroxy silicate) polymer.
Claim 2
Dependent Claim
197 words
The process for the production of organic hydroxy silicate compounds and their condensation products by the following steps: (a) adding about 100 parts by weight of dry granular alkali metal metasilicate slowly to 50 parts by weight of concentrated sulfuric acid; (b) agitating said mixture to keep the temperature below 100° C and oxygen evolves from the mixture, thereby (c) producing a white granular mixture of a silicic acid compound and alkali metal sulfate; (d) washing said mixture with water, then filtering the mixture to remove the alkali metal sulfate and then air drying at 25° to 75° C, leaving a fine white granular silicic acid compound; (e) mixing about 50 parts by weight of said silicic acid compound with about 30 to 100 parts by weight of a polyhydroxy alcohol compound; (f) adding an alkali catalyst in the ratio of 1% to 10% by weight of the silicic acid compound and polyhydroxy alcohol compound; (g) heating the said mixture to just below the boiling point of the polyhydroxy alcohol while agitating for about 20 to 90 minutes, thereby (h) producing a brown mixture of an organic hydroxy silicate compound and a poly (organic hydroxy silicate) polymer.
Claim 3
Dependent Claim
23 words
The process according to claim 1 wherein the dry alkali metasilicate is selected from the group consisting of sodium metasilicate and potassium metasilicate.
Claim 4
Dependent Claim
57 words
The process according to claim 1 wherein the polyhydroxy alcohol compound is selected from the group consisting of glycerol, ethylene glycol, propylene glycol, butylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, tetraethylene glycol, polyethylene glycol, bis (B-hydroxyethyl) terephthlate, trimethol propane, trimethol ethane, 2,2'-oxyethanol, and 2-butyne-1,4-doil in an aqueous solution.
Claim 5
Dependent Claim
23 words
The process according to claim 1 wherein the polyhydroxyl alcohol compound is a vegetable oil with free hydroxyl radicals such as castor oil.
Claim 6
Dependent Claim
29 words
The process according to claim 1 wherein the polyhydroxyl alcohol compound is a carbohydrate and is selected from the group consisting of cane sugar, glucose, mannose, fructose and starches.
References Cited (Backward Citations)
US4028391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |