US3941864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing molded structures and coatings based on inorganic binding agents
Assignee: Wacker Chemie AG
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Filing: 1974-05-28
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Granted: 1976-03-02
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Expires: 1994-05-28
Abstract
Abstract A method of manufacturing molded structures and coatings based on curable inorganic binding agents and water which comprises coating shape-imparting surfaces made from materials such as wood, plaster, plastic or iron, with a mixture containing a curable organosilicon compound, a solvent and finely dispersed solid particles, such as silicon dioxide, quartz powder, diatomaceous earth and silicious chalk, applying the building materials, curing and removing the molded structures.
Inventors
- 👤 Erhard Bosch
- 👤 Ewald Pirson
- 👤 Michael Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:22
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/38; B28B7/384; C; C10; C10M; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2201/10; C10M2201/102; C10M2201/105; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10M2229/051; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
A method for manufacturing molded structures and coatings from building materials based on inorganic binding agents and water which comprises coating the shape-imparting surface of a mold with a composition consisting essentially of a mixture of a curable organosilicon compound capable of imparting water repellency to the molded structures, a solvent and finely dispersed particles of an inorganic material having a surface area of from 10 to 400m 2 /g in an amount from 5 to 40% by weight based on the total weight of the mixture and applying to the uncured coating the building materials which are capable of curing to a solid, curing the materials and thereafter removing the molded structure.
Claim 2
Independent Claim
113 words
A method for manufacturing molded structures and coatings from building materials based on inorganic binding agents and water which comprises coating the shape-imparting surface of a mold with a composition consisting essentially of a mixture of a curable organosilicon compound capable of imparting water repellency to the molded structures, a solvent and finely dispersed particles of an inorganic material having a surface area of from 10 to 400m 2 /g in an amount from 5 to 40% by weight based on the total weight of the mixture and applying to the uncured coating the building materials which are capable of curing to a solid, curing the materials and thereafter removing the molded structure.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the solvent is an organic solvent.
Claim 4
Dependent Claim
30 words
The method of claim 2 wherein the organosilicon compound is present in an amount of 5 to 50 percent by weight based on the total weight of the mixture. 5
Claim 5
Dependent Claim
75 words
The method of claim 1 wherein the organosilicon compound contains units of the general formula ##EQU2## in which R is selected from the group consisting of monovalent hydrocarbon radicals and halogenated monovalent hydrocarbon radicals having from 1 to 14 carbon atoms, R' is an alkyl radical having from 1 to 5 carbon atoms, x, y and z are each numbers of from 0 to 3, and the sum of x+y+z is no greater than 3.
Claim 6
Dependent Claim
64 words
The method of claim 1 wherein the organosilicon compound is represented by the general formula R.sub.4.sub.-m Si(OR').sub.m in which R is selected from the group consisting of monovalent hydrocarbon radicals and halogenated monovalent hydrocarbon radicals having from 1 to 14 carbon atoms, R' is an alkyl radical having from 1 to 5 carbon atoms and m is a number of from 1 to 3.
Claim 7
Dependent Claim
47 words
The method of claim 5 wherein the organosilicon compound is represented by the formula (n-C 3 H 7 ) 4 -m Si(OR') m in which R' is an alkyl radical having from 1 to 5 carbon atoms and m is a number of from 1 to 3.
Claim 8
Dependent Claim
29 words
The method of claim 1 wherein the organosilicon compound is represented by the general formula n-C 3 H 7 Si(OH) 2 OMe in which Me is an alkali metal.
Claim 9
Dependent Claim
14 words
The method of claim 7 wherein the organosilicon compound is an alkali metal propylsiliconate.
Claim 10
Dependent Claim
14 words
The method of claim 1 wherein the finely dispersed inorganic material is silicon dioxide.
Claim 11
Dependent Claim
24 words
The method of claim 1 wherein the coating is applied in an amount of from 0.2 to 1 kg/m 2 of mold surface area.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |