# US 2013/0280201 A1 · Fully acylated amino-functional organopolysiloxanes

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- Number: US 2013/0280201 A1
- Document ID: US20130280201A1
- Status: Published application
- Kind: A1
- Application number: 13/821,466
- Filed: 2011-09-19
- Published: 2013-10-24
- Earliest claimed: 2010-09-28
- Assignees: Wacker Chemie AG
- Inventors: Christof Brehm; Gerhard Beer; Markus Merget
- Web page: https://patentgrep.com/patent/US20130280201A1

## CPC

- A61K 8/898: containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
- A61K 8/06: Emulsions
- A61Q 5/02: Preparations for cleaning the hair
- A61Q 5/12: Preparations containing hair conditioners
- C08G 77/16: to hydroxy groups
- C08G 77/26: nitrogen-containing groups
- C08G 77/388: containing nitrogen
- C08L 83/08: containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- A61K 2800/21: Emulsions characterized by droplet sizes below 1 micron
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Fully acylated hydroxyl-terminated organopolysiloxanes bearing pendant aminoalkyl groups are easily prepared by reacting a hydroxyl-terminated, aminoalkyl organopolysiloxane with a carboxylic anhydride in stoichiometric amount relative to amino groups, in the presence of at least one emulsifier.

## Claims

### Claim at position 1

-8. (canceled)

### Claim 9

A hydroxy-terminated organopolysiloxane of the formula (1),
where
R is a monovalent unsubstituted or halogen-substituted hydrocarbon radical having 1 to 20 carbon atoms,
R1 is a radical R, —OR4 or —OH,
R4 is an alkyl radical having 1 to 6 carbon atoms,
G is a group of the formula (2),
where
R2, R3 are divalent hydrocarbon radicals having 1 to 6 carbon atoms, where nonadjacent —CH2 units are optionally replaced by units —C(═O)—, —O— and —S—,
A is R5—C(═O)—,
R5 is an alkyl radical having 1 to 20 carbon atoms and
a is an integer from 100 to 1500 and
b is an integer of at least 1.

### Claim 10 (depends on 9)

The organopolysiloxane of claim 9, in which R has 1 to 6 carbon atoms.

### Claim 11 (depends on 9)

The organopolysiloxane of claim 9, in which the radicals R2, R3 are individually ethylene, n-propylene, isobutylene or n-butylene.

### Claim 12 (depends on 10)

The organopolysiloxane of claim 10, in which the radicals R2, R3 are individually ethylene, n-propylene, isobutylene or n-butylene.

### Claim 13 (depends on 9)

The organopolysiloxane of claim 9, in which R5 are linear alkyl radicals having 1 to 6 carbon atoms.

### Claim 14 (depends on 10)

The organopolysiloxane of claim 10, in which R5 are linear alkyl radicals having 1 to 6 carbon atoms.

### Claim 15 (depends on 11)

The organopolysiloxane of claim 11, in which R5 are linear alkyl radicals having 1 to 6 carbon atoms.

### Claim 16 (depends on 9)

An aqueous emulsion comprising 5% by weight to 70% by weight of the hydroxy-terminated organopolysiloxanes of formula (1) of claims 9, and 1 to 150% by weight, based on the weight of the organopolysiloxane, of an emulsifier.

### Claim 17 (depends on 16)

A cosmetic composition, comprising at least one emulsion of claim 16.

### Claim 18 (depends on 9)

A process for preparing a hydroxy-terminated organopolysiloxane of claim 9, comprising reacting at least one hydroxy-terminated organopolysiloxane of the formula (1a)
in which
G′ is a group of the formula (2a)
with acyclic carboxylic anhydride(s) of the formula (3)
R5—C(═O)—O—C(═O)—R5 (3)
in a stoichiometrically equivalent amount to the amine groups present in the organopolysiloxane, in the presence of one or more emulsifiers.

### Claim 19 (depends on 9)

A process for preparing a hydroxy-terminated organopolysiloxane of claim 9, comprising reacting hydroxy-terminated organopolysiloxanes (N) of the general formula (1a)
in which
G′ is a group of the formula (2a)
with acyclic carboxylic anhydrides of the formula (3)
R5—C(═O)—O—C(═O)—R5 (3)
in a stoichiometrically equivalent amount to the amine groups present in the organopolysiloxane without dilution, and after the acylation has taken place, promptly adding a neutralizing agent.