# US 10,766,825 B2 · Self-dispersible mixture silicon additive composition, its emulsion and its use thereof

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- Number: US 10,766,825 B2
- Document ID: US10766825B2
- Status: Granted
- Kind: B2
- Application number: 15/767,682
- Filed: 2016-10-12
- Published: 2018-10-04
- Granted: 2020-09-08
- Earliest claimed: 2015-10-12
- Assignees: Wacker Metroark Chemicals Pvt. Ltd.
- Applicants: Wacker Metroark Chemicals Pvt. Ltd.
- Inventors: Amit Kumar Paul; Abhijit Tarafdar
- Web page: https://patentgrep.com/patent/US10766825B2

## CPC

- C04B 40/0042: {Powdery mixtures}
- C04B 24/32: Polyethers, e.g. alkylphenol polyglycolether
- C04B 24/42: Organo-silicon compounds
- C04B 28/04: Portland cements
- C04B 40/0039: {Premixtures of ingredients}
- C04B 2103/406: {non-ionic}
- C04B 2111/27: Water resistance, i.e. waterproof or water-repellent materials
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE

## Abstract

A composition comprising a self-dispersible mixture additive composition comprising a alkylalkoxysilane of formula (RO)4-nSiR′n, or its hydrolysate or mixture thereof, where, R is same or different C1-C20, R′ is same or different C1-C20; mixture of non-ionic emulsifier of HLB value between 8 and 20. The self-dispersible mixture additive composition is obtained by mixing the alkyltrialkoxysilane with a mixture of non-ionic emulsifier. The emulsion of the self-dispersible mixture additive composition is formed by mixing appropriate amount of an aqueous solvent to the self-dispersible mixture additive composition, and addition of thus formed emulsion to a porous product preferably dry cement to render uniform and long lasting hydrophobic property of the final product made of the porous product.

## Claims

### Claim 1

A composition comprising:
a self-dispersible mixture additive composition comprising:
50 to 90 weight percent, based on the total weight of the composition, of a hydrolysate of alkylalkoxysilane
i. (RO)4-nSiR′n (I)
where, n is any number from 1 to 3,
R is same or different and is a C1-C20 group,
R′ is same or different and is a C1-C20 group; and
50 to 10 weight percent, based on the total weight of the composition, of one or more non-ionic emulsifiers having an HLB value between 8 and 20, wherein, the one or more non-ionic emulsifiers are selected from polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ethers and polyoxyalkylene sorbitan esters.

### Claim 2 (depends on 1)

The composition as claimed in claim 1, wherein the R′ is same or different C3-C20 group.

### Claim 3 (depends on 1)

The composition as claimed in claim 1, wherein the R′ is selected from propyl, butyl, pentyl, hexyl, heptyl and octyl radical and its isomers or mixtures thereof.

### Claim 4 (depends on 1)

The composition as claimed in claim 1, wherein the alkyltrialkoxysilane is selected from propyltrimethoxy silane, propyltriethoxy silane, octyltrimethoxy silane, octyltriethoxy silane, isooctyltrimethoxy silane, isooctyltriethoxy silane or its isomers or mixtures thereof.

### Claim 5 (depends on 1)

The composition as claimed in claim 1, further comprising a catalyst.

### Claim 6 (depends on 1)

An emulsion comprising the composition of claim 1 and a protic solvent.

### Claim 7 (depends on 1)

A powder composition comprising the composition of claim 1.

### Claim 8 (depends on 1)

A liquid composition comprising the composition of claim 1.

### Claim 9 (depends on 1)

A process of preparing a self-dispersible mixture additive composition of claim 1, comprising
combining (A) 50 to 90 weight percent, based on the total weight of the composition, of a hydrolysate of alkylalkoxysilane
i. (RO)4-nSiR′n (I)
where, n is any number from 1 to 3,
R is same or different and is a C1-C20 group,
R′ is same or different and is a C1-C2 group; and
(B) 50 to 10 weight percent, based on the total weight of the composition, of one or more non-ionic emulsifiers having an HLB value between 8 and 20, wherein, the one or more non-ionic emulsifiers are selected from polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ethers and polyoxyalkylene sorbitan esters.