US4175159A
Expired / Lapsed
US
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Silicone emulsions for treating silicate particulate matter
Assignee: General Electric Co
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Filing: 1978-07-31
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Granted: 1979-11-20
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Expires: 1998-07-31
Abstract
Abstract A silicone emulsion for treating silicate particulate matter such as perlite and vermiculite, to make it water-resistant comprising a silicone fluid composed of difunctional siloxy units, trifunctional siloxy units and monofunctional siloxy units and as the emulsifier in water there is the reaction product of an aliphatic carboxylic acid with ammonia. The silicone emulsion is applied by spraying it on to the heated silicate particulate matter which is preferably heated to at least 150° C., such that the silicone fluid rapidly cures on the particulate matter.
Inventors
- 👤 William J. Raleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:45
CPC Classifications
C; C04; C04B; C04B20/00; C04B20/10; C04B20/1051; C08; C08K; C08K5/00; C08K5/04; C08K5/09; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
169 words
A silicone emulsion for treating silicate particulate matter selected from perlite and vermiculite to make the particulate matter water-resistant comprising (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units. R SiO 1 .5 units and R SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive and the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1 inclusive and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms vinyl radicals and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia and (d) from 20 to 150 parts of water.
Claim 2
Dependent Claim
169 words
A silicone emulsion for treating silicate particulate matter selected from perlite and vermiculite to make the particulate matter water-resistant comprising (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units. R SiO 1 .5 units and R SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive and the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1 inclusive and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms vinyl radicals and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia and (d) from 20 to 150 parts of water.
Claim 3
Dependent Claim
14 words
The silicone emulsion of claim 1 wherein said aliphatic carboxylic acid is oleic acid.
Claim 4
Dependent Claim
10 words
The silicone emulsion of claim 1 wherein R is methyl.
Claim 5
Dependent Claim
22 words
The silicone emulsion of claim 1 wherein there is present from 0.1 to 0.5 parts by weight of a silicone antifoam compound.
Claim 6
Dependent Claim
30 words
The silicone emulsion of claim 4 wherein the antifoam compound is a dimethylpolysiloxane of a viscosity varying from 10 to 10,000 centipoise at 25° C. dispersed or emulsified in water.
Claim 7
Independent Claim
190 words
A method for forming a silicone emulsion for treating silicate particulate matter selected from perlite and vermiculite to make the particulate matter water-resistant comprising (a) mixing from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio or organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive and the ratio of triorganosiloxy to diorganosiloxy units varies from 0.02 to 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C., where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals, and mononuclear aryl radicals and from 0.5 to 5 parts of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (b) mixing separately from 20 to 150 parts of water with from 0.1 to 0.8 parts of ammonia; (c) adding with agitation the ammonia-water mixture to the silicone fluid, carboxylic acid mixture; and (d) adding additional water as needed.
Claim 8
Independent Claim
190 words
A method for forming a silicone emulsion for treating silicate particulate matter selected from perlite and vermiculite to make the particulate matter water-resistant comprising (a) mixing from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio or organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive and the ratio of triorganosiloxy to diorganosiloxy units varies from 0.02 to 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C., where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals, and mononuclear aryl radicals and from 0.5 to 5 parts of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (b) mixing separately from 20 to 150 parts of water with from 0.1 to 0.8 parts of ammonia; (c) adding with agitation the ammonia-water mixture to the silicone fluid, carboxylic acid mixture; and (d) adding additional water as needed.
Claim 9
Dependent Claim
23 words
The method of claim 6 wherein the process is carried out at a temperature in the range of 25° C. to 50° C.
Claim 10
Dependent Claim
27 words
The method of claim 6 wherein approximately half of the water is added in step (b) and the rest of the water is added in step (d).
Claim 11
Dependent Claim
13 words
The method of claim 6 wherein said aliphatic carboxylic acid is oleic acid.
Claim 12
Dependent Claim
9 words
The method of claim 6 wherein R is methyl.
Claim 13
Dependent Claim
21 words
The method of claim 6 wherein there is present from 0.01 to 0.5 parts by weight of a silicone antifoam compound.
Claim 14
Dependent Claim
29 words
The method of claim 11 wherein the antifoam compound is a dimethylpolysiloxane of a viscosity varying from 10 to 10,000 centipoise at 25° C. dispersed or emulsified in water.
Claim 15
Dependent Claim
161 words
A silicone coated particulate matter comprising (1) a silicate particulate matter selected from perlite and vermiculite which is coated with (2) the cured composition of the following mixture of ingredients (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive, the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals and mononuclear aryl radicals and (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms.
Claim 16
Dependent Claim
161 words
A silicone coated particulate matter comprising (1) a silicate particulate matter selected from perlite and vermiculite which is coated with (2) the cured composition of the following mixture of ingredients (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4 inclusive, the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals and mononuclear aryl radicals and (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms.
Claim 17
Dependent Claim
15 words
The silicone coated matter of claim 13 wherein said aliphatic carboxylic acid is oleic acid.
Claim 18
Dependent Claim
11 words
The silicone coated matter of claim 13 wherein R is methyl.
Claim 19
Independent Claim
192 words
A method for coating silicate matter selected from perlite and vermiculite so as to render it water-resistant comprising (1) applying to the surface of the silicate particulate matter a silicone emulsion having (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4, inclusive, and the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals, and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia; and (d) from 20 to 150 parts of water; and (2) curing the silicone emulsion and evaporating the water.
Claim 20
Independent Claim
192 words
A method for coating silicate matter selected from perlite and vermiculite so as to render it water-resistant comprising (1) applying to the surface of the silicate particulate matter a silicone emulsion having (a) from 40 to 60 parts by weight of a silicone fluid having R 2 SiO units, R SiO 1 .5 units and R 3 SiO 0 .5 units where the ratio of organosiloxy units to diorganosiloxy units varies from 0.11 to 1.4, inclusive, and the ratio of triorganosiloxy units to diorganosiloxy units varies from 0.02 to about 1, inclusive, and the fluid has a silanol content varying from 0.1 to 8 percent by weight and a viscosity varying from 10 to 10,000 centipoise at 25° C. and where R is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms, vinyl radicals, and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia; and (d) from 20 to 150 parts of water; and (2) curing the silicone emulsion and evaporating the water.
Claim 21
Dependent Claim
21 words
The method of claim 16 wherein step (2) is accomplished by preheating the silicate particulate matter to at least 150° C.
Claim 22
Dependent Claim
13 words
The method of claim 16 wherein said aliphatic carboxylic acid is oleic acid.
Claim 23
Dependent Claim
9 words
The method of claim 16 wherein R is methyl.
Claim 24
Dependent Claim
25 words
The method of claim 16 wherein in the silicone emulsion there is present from 0.01 to 0.5 parts by weight of a silicone antifoam compound.
Claim 25
Independent Claim
132 words
A method for coating silicate particulate matter selected from perlite and vermiculite so as to render it water-resistant comprising (1) applying to the surface of the silicate particulate matter a silicone emulsion having (a) from 40 to 60 parts by weight of a linear silanol terminated diorganopolysiloxane polymer having a viscosity varying from 10 to 10,000 centipoise at 25° C. where the organo group is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia; and (d) from 20 to 150 parts of water; and (2) curing the silicone emulsion and evaporating the water.
Claim 26
Independent Claim
132 words
A method for coating silicate particulate matter selected from perlite and vermiculite so as to render it water-resistant comprising (1) applying to the surface of the silicate particulate matter a silicone emulsion having (a) from 40 to 60 parts by weight of a linear silanol terminated diorganopolysiloxane polymer having a viscosity varying from 10 to 10,000 centipoise at 25° C. where the organo group is selected from the class consisting of alkyl radicals of 1 to 8 carbon atoms and mononuclear aryl radicals; (b) from 0.5 to 5 parts by weight of an aliphatic carboxylic acid having from 6 to 20 carbon atoms; (c) from 0.1 to 0.8 parts by weight of ammonia; and (d) from 20 to 150 parts of water; and (2) curing the silicone emulsion and evaporating the water.
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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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |