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US 5,178,668 AGranted
Aqueous water repellent compositions
AssigneeGeneral Electric Company
InventorsFrank J. Traver, Kimberlie A. Schryer
Life of this patent
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Abstract
An aqueous composition for rendering masonry and wood surfaces water repellent is provided, comprising an aqueous mixture containing an alkali metal aminoorgano-functional siliconate and at least one alkali metal organosiliconate.
Claims29
An aqueous composition for rendering masonry and wood surfaces water repellent, comprising by weight:
- (A) from about 5 to about 70 parts of a mixture comprising by weight:
- (1) from about 5 to about 50 parts of an alkali metal aminoorganofunctional siliconate having the general formula
- NR.sub.2 (CH.sub.2).sub.x (NR).sub.y (CH.sub.2).sub.z Si(OH).sub.2 OM
- or a quaternary amine salt thereof, wherein each R is independently hydrogen or a monovalent hydrocarbon radical having from 1 to about 6 carbon atoms;
- M is an alkali metal selected from sodium, potassium, lithium, rubidium, or cesium;
- x is a number in the range of 0 to 5;
- y is 0 or 1, with the proviso that if x is 0, y is 1;
- z is a number in the range of 1 to 6;
- and x+z is a number in the range of 1 to 6;
- (2) from about 95 to about 50 parts of at least one alkali metal organosiliconate selected from (i) monomer compounds of the general formula R.sup.1 Si(OH).sub.2 OM, or (ii) polymer compounds containing units of the general formula R.sup.1 (OM)SiO.sub.2/2, wherein R.sup.1 is a monovalent hydrocarbon radical having from 1 to about 6 carbon atoms, and M is an alkali metal selected from sodium, potassium, lithium, rubidium, or cesium, the sum of (A)(1) and (A)(2) being 100 parts by weight;
- and
- (B) from about 30 to about 95 parts of water, the sum of (A) and (B) being 100 parts by weight.
9 more elements
An aqueous composition for rendering masonry and wood surfaces water repellent, comprising by weight:
- (I) from about 2 to about 60 parts of a mixture comprising by weight:
- (1) from about 5 to about 50 parts of an alkali metal aminoorganofunctional siliconate having the general formula
- NR.sub.2 (CH.sub.2).sub.x (NR).sub.y (CH.sub.2).sub.z Si(OH).sub.2 OM
- or a quaternary amine salt thereof, wherein each R is independently hydrogen or a monovalent hydrocarbon radical having from 1 to about 6 carbon atoms;
- M is an alkali metal selected from sodium, potassium, lithium, rubidium, or cesium;
- x is a number in the range of 0 to 5;
- y is 0 or 1, with the proviso that if x is 0, y is 1;
- z is a number in the range of 1 to 6;
- and x+z is a number in the range of 1 to 6;
- (2) from about 95 to about 50 parts of at least one alkali metal organosiliconate selected from (i) monomer compounds of the general formula R.sup.2 Si(OH).sub.2 OM;
- (ii) polymer compounds comprising units of the general formula R.sup.2 (OM)SiO.sub.2/2, or (iii) polymer blends comprising by weight:
- (a) from about 70% to about 90% of polymer compounds comprising units of the general formula (CH.sub.3)(OM)SiO.sub.2/2 ;
- (b) from about 3% to about 20% of polymer compounds comprising units of the general formula (CH.sub.3).sub.2 SiO.sub.2/2 ;
- and
- (c) from about 5% to about 27% of polymer compounds comprising units of the general formula [(CH.sub.3)(CH.sub.2).sub.5 ](OM)SiO.sub.2/2 ;
- wherein R.sup.2 is a monovalent hydrocarbon radical having from 1 to about 8 carbon atoms;
- M is alkali metal selected from sodium, potassium, lithium, rubidium, or cesium, the sum of (I)(1) and (I)(2) being 100 parts by weight;
- (II) from about 1 to about 20 parts of a water-soluble organic solvent selected from aliphatic monovalent alcohols having from 1 to 4 carbon atoms or ketones having from 3 to 5 carbon atoms;
- and
- (III) from about 20 to about 97 parts of water, the sum of (I), (II), and (III) being 100 parts by weight.
17 more elements
An aqueous composition for rendering masonry and wood surfaces water repellent, comprising by weight:
- (A') from about 1 to about 10 parts of a mixture comprising by weight:
- (I') from about 5 to about 50 parts of an alkali metal aminoorganofunctional siliconate having the general formula
- NR.sub.2 (CH.sub.2).sub.x (NR).sub.y (CH.sub.2).sub.z Si(OH).sub.2 OM
- or a quaternary amine salt thereof, wherein each R is independently hydrogen or a monovalent hydrocarbon radical having from 1 to about 6 carbon atoms;
- M is an alkali metal selected from sodium, potassium, lithium, rubidium, or cesium;
- x is a number in the range of 0 to 5;
- y is 0 or 1, with the proviso that if x is 0, y is 1;
- z is a number in the range of 1 to 6;
- and x+z is a number in the range of 1 to 6;
- (II') from about 95 to about 50 parts of an alkali metal organosiliconate polymer blend comprising by weight:
- (a) from about 70% to about 90% of polymer compounds comprising units of the general formula (CH.sub.3)(OM)SiO.sub.2/2 ;
- (b) from about 3% to about 20% of polymer compounds comprising units of the general formula (CH.sub.3).sub.2 SiO.sub.2/2 ;
- and
- (c) from about 5% to about 27% of polymer compounds comprising units of the general formula [(CH.sub.3)(CH.sub.2).sub.5 ](OM)SiO.sub.2/2 ;
- wherein M is alkali metal selected from sodium, potassium, lithium, rubidium, or cesium, the sum of (A')(I') and (A')(II') being 100 parts by weight;
- (B') from about 1 to about 10 parts of a non-ionic surfactant;
- and
- (C') from about 80 to about 98 parts of water, the sum of (A'), (B'), and (C') being 100 parts by weight.
15 more elements
Dependencies are inferred from the claim text.