US4753977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water repellent for masonry
Assignee: General Electric Co
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Filing: 1986-12-10
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Granted: 1988-06-28
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Expires: 2006-12-10
Abstract
Abstract There is provided a silicone composition for rendering surfaces stain resistant and water repellent comprising: (a) an organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is independently selected from substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; (b) alkyl-alkoxypolysiloxane resin; and (c) an effective amount of condensation catalyst.
Inventors
- 👤 Duane F. Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/495; C04B41/4961; C08; C08L; C08L83/00; C08L83/04; E; E04; E04B; E04B1/00; E04B1/62; E04B1/64; E04B1/644; E04B1/648; E04B1/66; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
195 words
A composition of matter comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radicals from 1 to about 8 carbon atoms; (b) 5 to 500 parts by weight alkyl-alkoxypolysiloxane resin for each 100 parts by weight organopolysiloxane resin said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst.
Claim 2
Dependent Claim
195 words
A composition of matter comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radicals from 1 to about 8 carbon atoms; (b) 5 to 500 parts by weight alkyl-alkoxypolysiloxane resin for each 100 parts by weight organopolysiloxane resin said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst.
Claim 3
Dependent Claim
29 words
The composition of claim 1 which further contains from about 1 to about 15 parts by weight of crosslinking agent to 100 parts by weight polyorganosiloxane resin and alkyl-alkoxypolysiloxane.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein said crosslinking agent is methyl trimethoxy silane.
Claim 5
Dependent Claim
14 words
The composition of claim 2 wherein said crosslinking agent and said catalyst is gamma-aminopropyltrimethoxysilane.
Claim 6
Dependent Claim
26 words
The composition of claim 1 wherein there is from about 5 to about 100 parts by weight alkyl-alkoxypolysiloxane for each 100 parts by weight organopolysiloxane resin.
Claim 7
Dependent Claim
25 words
The composition of claim 1 which further contains sufficient organic solvent to form a solution of from about 5 to about 60% by weight solids.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein R and R 1 are methyl.
Claim 9
Dependent Claim
24 words
The composition of claim 1 wherein said organopolysiloxane resin has a hydroxy or alkoxy content ranging from about 1 to about 6% by weight.
Claim 10
Dependent Claim
39 words
The composition of claim 1 wherein said condensation catalyst is selected from the group consisting of a Lewis acid, an organic amine, a combination of Lewis acid and organic amine, metal oxide, titanium compounds, tin compounds, and zirconium compounds.
Claim 11
Dependent Claim
13 words
The composition of claim 9 wherein said condensation catalyst is an organic amine.
Claim 12
Dependent Claim
210 words
A composition of matter comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radical of from 1 to 8 carbon atoms; (b) sufficient alkyl-alkoxypolysiloxane resin that the composition forms a film and is curable to a dry, tack-free composition but not so much that the composition is curable to insolubility in mineral spirits said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst.
Claim 13
Dependent Claim
210 words
A composition of matter comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radical of from 1 to 8 carbon atoms; (b) sufficient alkyl-alkoxypolysiloxane resin that the composition forms a film and is curable to a dry, tack-free composition but not so much that the composition is curable to insolubility in mineral spirits said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst.
Claim 14
Dependent Claim
33 words
The composition of claim 11 which additionally contains a crosslinking agent in an amount of from about 1 to about 15 parts by weight to 100 parts by weight polyorganosiloxane resin and alkyl-alkoxypolysiloxane.
Claim 15
Independent Claim
234 words
A method for rendering surfaces stain resistant and water repellent comprising the steps of: (I) applying a composition comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radical of from 1 to 8 carbon atoms; (b) 5 to 500 parts by weight an alkyl-alkoxypolysiloxane resin for each 100 parts by weight organopolysiloxane resin, said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst; and (d) sufficient organic solvent to form a solution at from about 5 to about 60% by weight solids; and II. evaporating the solvent.
Claim 16
Independent Claim
234 words
A method for rendering surfaces stain resistant and water repellent comprising the steps of: (I) applying a composition comprising: (a) organopolysiloxane resin selected from the group consisting of resins having R 3 SiO 0 .5 units and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 units, ranging from about 0.2 to about 0.9:1 and resins having R 3 SiO 0 .5 units, R 2 SiO units, and SiO 2 units, the ratio of R 3 SiO 0 .5 units to SiO 2 ranging from about 0.2 to about 0.9:1 and the ratio of R 2 SiO units to SiO 2 units being up to about 0.1:1 where each R is a substituted or unsubstituted monovalent hydrocarbon radical of from 1 to 8 carbon atoms; (b) 5 to 500 parts by weight an alkyl-alkoxypolysiloxane resin for each 100 parts by weight organopolysiloxane resin, said alkyl-alkoxypolysiloxane having the empirical formula: RSi(OR.sup.1).sub.n O.sub.(3-n)/2 wherein n is a number from about 1/3 to about 1 and R 1 is a substituted or unsubstituted condensable hydrocarbon radical of from 1 to 6 carbon atoms and R is a substituted or unsubstituted hydrocarbon radical of from 1 to 8 carbon atoms; and (c) an effective amount of condensation catalyst; and (d) sufficient organic solvent to form a solution at from about 5 to about 60% by weight solids; and II. evaporating the solvent.
References Cited (Backward Citations)
US3629358A
Cited
US4255316A
Cited
US4273813A
Cited
US4490500A
Cited
US4486476A
Cited
US4555419A
Cited
US4495340A
Cited
US4595610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |