Method for preparing and using hair treatment agents with organic c1-c6-alkoxy-silanes

Patent metadata

Field	Value
Publication number	US-2022000751-A1
Application number	US-202017436036-A
Country	US
Kind code	A1
Filing date	Jan 24, 2020
Priority date	Mar 6, 2019
Publication date	Jan 6, 2022
Grant date	—

Abstract

The subject of the present application is a process for the preparation of an agent for the treatment of keratinous material, in particular human hair, comprising the following steps:(1) Mixing one or more organic C1-C6 alkoxy silanes with water,(2) partial or complete removal from the reaction mixture of the C1-C6 alcohols released by the reaction in step (1),(3) optionally addition of one or more cosmetic ingredients, and(4) Filling of the preparation into a packaging unit,exemplified in that the total content of C1-C6 alcohols in the preparation obtained in step (4)—based on the total weight of the preparation—is below about 10.0% by weight.

First claim

1 . A method for the preparation of an agent for the treatment of keratinous material, comprising the following steps:
(1) mixing one or more organic C 1 -C 6 alkoxy silanes with water to produce a reaction mixture, (2) removing a C 1 -C 6 alcohol produced by a reaction between the C 1 -C 6 alkoxy silanes with water in the reaction mixture, where the C 1 -C 6 alcohol is partially or completely removed, (3) optionally adding of one or more cosmetic ingredients to the reaction mixture, and (4) filling a preparation produced by the reaction mixture into a packaging unit, wherein the total content of C 1 -C 6 alcohols in the preparation obtained in step (4)—based on a total weight of the preparation—is below about 10.0% by weight.

2 . The method according to claim 1 , wherein:
(1) mixing the one or more organic C 1 -C 6 alkoxy silanes with the water comprises mixing an organic C 1 -C 6 alcoxy silane of formula (I) and/or (II) with water,
R 1 R 2 N-L-Si(OR 3 ) a (R 4 ) b   (I)

where
R 1 , R 2 independently represent a hydrogen atom or a C 1 -C 6 alkyl group,
L is a linear or branched divalent C 1 -C 20 alkylene group,
R 1 , R 4 independently of one another represent a C 1 -C 6 alkyl group,
a, stands for an integer from 1 to 3, and
b stands for the integer 3-a, and
(R 5 O) c (R 6 ) d Si-(A) e -[NR 7 -(A′)] f -[O-(A″)] g -[NR 8 -(A′″)] h -Si(R 6 ′) d′ (OR 5 ′) c′   (II),

where
R5, R5′, R5″, R6, R6′ and R6″ independently represent a C 1 -C 6 alkyl group,
A, A′, A″, A′″ and A″″ independently represent a linear or branched divalent C 1 -C 20 alkylene group,
R 7 and R 8 independently represent a hydrogen atom, a C 1 -C 6 alkyl group, a hydroxy C 1 -C 6 alkyl group, a C 2 -C 6 alkenyl group, an amino C 1 -C 6 alkyl group or a group of formula (III),
(A″″)-Si(R 6 ″) d ″(OR 5 ″) c ″  (III),

where
c, stands for an integer from 1 to 3,
d stands for the integer 3-c,
c′ stands for an integer from 1 to 3,
d′ stands for the integer 3-c′,
c″ stands for an integer from 1 to 3,
d″ stands for the integer 3-c″,
e stands for 0 or 1,
f stands for 0 or 1,
g stands for 0 or 1,
h stands for 0 or 1,
provided that at least one of e, f, g, and h is different from 0.

3 . The method according to claim 1 , wherein:
(1) mixing the one or more organic C 1 -C 6 alkoxy silanes with the water comprises mixing an organic C 1 -C 6 alkoxy silane of formula (IV) with water,
R 9 Si(OR 10 ) k (R 11 ) m   (IV),

where
R 9 represents a C 1 -C 12 alkyl group,
R 10 represents a C 1 -C 6 alkyl group,
R 11 represents a C 1 -C 6 alkyl group
k is an integer from 1 to 3, and
m stands for the integer 3-k.

4 . The method according to claim 1 , wherein:
(1) mixing the one or more organic C 1 -C 6 alkoxy silanes with the water comprises mixing the one or more organic C 1 -C 6 alkoxy silanes with water in a reaction vessel.

5 . The method according to claim 1 , wherein:
(1) mixing the one or more organic C 1 -C 6 alkoxy silanes with the water comprises mixing the one or more organic C 1 -C 6 alkoxy silanes with from about 0.10 to about 0.80 molar equivalents of water (S-W),
where the molar equivalents of water are calculated according to the formula
S−W=(mol(water)/(mol(silane)× n (alkoxy))

with S-W=molar equivalent water mol(water)=molar quantity of water used mol(silanes)=total molar amount of C 1 -C 6 alkoxy silanes used in the reaction n(alkoxy)=number of C 1 -C 6 alkoxy groups per C 1 -C 6 alkoxy silane

6 . The method according to claim 1 , further comprising:
(1) reactiong the one or more organic C 1 -C 6 alkoxy silanes with water at a temperature of from about 20 to about 65° C.

7 . The method according to claim 1 , wherein:
(2) removing the C 1 -C 6 alcohols produced by the reaction in step (1) from the reaction mixture comprising removing the C 1 -C 6 alcohols at a temperature of from about 20 to about 65° C.

8 . The method according to claim 1 , wherein:
(2) removing the C 1 -C 6 alcohols produced by the reaction in step (1) from the reaction mixture comprises distilling the reaction mixture at a pressure of from 0 to about 900 mbar.

9 . The method according to claim 1 , wherein:
(2) removing the C 1 -C 6 alcohols produced by the reaction in step (1) from the reaction mixture comprises distilling the reaction mixture over a period of from about 90 to about 300 minutes.

10 . The method according to claim 1 , wherein:
the one or more cosmetic ingredients are selected from the group of polymers, surface-active compounds, coloring compounds, lipid components, pH regulators, perfumes, preservatives, plant extracts, protein hydrolysates, and combinations thereof.

11 . The method according to claim 1 , wherein:
the one or more cosmetic ingredients are selected from the group of hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane and/or decamethylcyclopentasiloxane.

12 . The method according to claim 1 , wherein:
(4) Filling the preparation produced by the reaction mixture comprises filling the preparation into a bottle, tube, jar, can, sachet, aerosol pressure container, non-aerosol pressure container, canister, hobbock, or combination thereof.

13 . The method according to claim 1 , wherein a total content of the C 1 -C 6 alcohols in the preparation obtained after step (4)—based on a total weight of the preparation—is below about 9.0% by weight.

14 . The method according to claim 1 , wherein a water content in the preparation obtained after step (4)—based on a total weight of the preparation—is below about 5.0% by weight.

15 . The method of claim 1 , comprising the steps in the following order:
(1) mixing the one or more organic C 1 -C 6 alkoxy silanes with the water, (2) removing the C 1 -C 6 alcohols produced in step (1), (3) adding the one or more cosmetic ingredients, and (4) filling of the preparation into the packaging unit.

16 . The method of claim 1 , comprising the steps in the following order:
(1) reacting the one or more organic C 1 -C 6 alkoxy silanes with the water, (3) adding the one or more cosmetic ingredients, (2) removing the C 1 -C 6 alcohols produced in step (1), and (4) filling the preparation into the packaging unit.

17 . The method according to claim 1 , wherein the preparation comprises an agent for coloring keratinous material, for maintaining keratinous material, or for changing the shape of keratinous material.

18 . An agent for treating keratinous material comprising a preparation in a packaging unit prepared by the method described in claim 1 .

19 . A multicomponent packaging unit (kit-of-parts) for dyeing keratinous material, comprising:
a first packaging unit containing a cosmetic preparation (A) and a second packaging unit containing a cosmetic preparation (B),
where
the cosmetic preparation (A) in the first packaging unit has been prepared by the method described in claim 1 , and
the cosmetic formulation (B) comprises at least one colorant compound selected from the group of pigments, direct dyes and/or oxidation dye precursors.

20 . The method according to claim 1 , wherein a total content of the C 1 -C 6 alcohols in the preparation obtained after step (4)—based on a total weight of the preparation—is below about 5.0% by weight

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Lechner Torsten
• Lohr Christoph
• Walter Andreas
• Thiessies Claus-Peter
• Schoepgens Juergen

Classifications

• A61K8/898

  containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine · CPC title

• A61K2800/88

  Two- or multipart kits · CPC title

• A61Q5/08

  Preparations for bleaching the hair · CPC title

• A61K2800/805

  Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95 · CPC title

• A61K8/342 Primary

  Alcohols having more than seven atoms in an unbroken chain · CPC title