Compositions

Patent metadata

Field	Value
Publication number	US-10639253-B2
Application number	US-201514946163-A
Country	US
Kind code	B2
Filing date	Nov 19, 2015
Priority date	Nov 21, 2014
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

Suggested is a composition comprising
(a) at least one lactate ester and (b1) at least one second compound selected from the group encompassing benzaldehyde derivatives, aromatic aldehydes and aromatic acids.

First claim

What claimed is:

1. A composition, consisting of
(a) at least one lactate ester selected from the group consisting of

a cosmetically acceptable salt thereof, a pharmaceutically acceptable salt thereof and mixtures thereof; and a component (b) selected from the group consisting of (b1) p-anisic aldehyde, (b2) 3-phenyl propanol, (b3) p-anisic acid and mixtures thereof; wherein compounds of formula (Ia), (Ic), (Id), (Ie) and (If) are used at 0.05 to 1% by weight (b.w.) and combined with components of (b) at 0.05 to 0.5% b.w.; and wherein the composition has antimicrobial activity.

2. The composition of claim 1 , comprising
at least one species selected from group (Ia), (Ic), (Id), (Ie) and (If) and
wherein component (b) is selected from group consisting of a combination of (b1 and b2), (b2 and b3) and (b1 and b3).

3. A cosmetic or personal care composition, comprising the composition of claim 1 .

4. The composition of claim 3 , comprising the sum of compounds (a+b1+b2+b3) in an amount of 0.05 to 2% b.w.—calculated on the total composition.

5. The composition of claim 3 , which is a skin care composition, a hair composition, a sun care composition or a fragrance composition.

6. A method for improving antimicrobial performance of a cosmetic or personal care composition comprising incorporating a working amount of the composition of claim 1 .

7. The method of claim 6 , wherein an amount of 0.05 to 2% b.w. of the sum of compounds (a+b1+b2+b3) is added to a cosmetic or personal care composition.

8. A composition comprising a mixture of compounds selected from the group consisting of
(1) butyl lactate at 1% and 3-phenylpropanol at 0.25%,
(2) butyl lactate at 1% and p-anisic acid at 0.25%,
(3) amyl lactate at 0.75% and p-anisic aldehyde at 0.25%,
(4) amyl lactate at 0.75% and 3-phenylpropanol at 0.25%,
(5) amyl lactate at 0.75% and p-anisic acid at 0.25%,
(6) benzyl lactate at 0.75% and p-anisic aldehyde at 0.25%,
(7) benzyl lactate at 0.75% and 3-phenylpropanol at 0.25%, and
(8) benzyl lactate at 0.75% and p-anisic acid at 0.25%; and
wherein the composition has antimicrobial activity.

9. A composition comprising a mixture of compounds, wherein the mixture of compounds is selected from the group consisting of
(1) butyl lactate at 1% and 3-phenylpropanol at 0.25%,
(2) amyl lactate at 0.75% and p-anisic aldehyde at 0.25%,
(3) amyl lactate at 0.75% and 3-phenylpropanol at 0.25%,
(4) benzyl lactate at 0.75% and p-anisic aldehyde at 0.25%, and
(5) benzyl lactate at 0.75% and 3-phenylpropanol at 0.25%.

10. A cosmetic or personal care composition comprising the composition of claim 8 .

11. A cosmetic or personal care composition comprising the composition of claim 9 .

12. The composition of claim 1 , wherein the lactate ester (a) is selected from the group consisting of

a cosmetically acceptable salt thereof, a pharmaceutically acceptable salt thereof and mixtures thereof.

13. The composition of claim 1 , wherein the composition is in the absence of 3-phenyl propanol.

14. The composition of claim 8 , wherein:
mixture (1) is synergistic against gram negative bacterium E. coli;
mixture (2) is synergistic against mould A. brasiliensis;
mixture (3) is synergistic against gram positive bacterium S. aureus;
mixture (4) is synergistic against gram positive bacterium S. aureus;
mixture (5) is synergistic against mould A. brasiliensis;
mixture (6) is synergistic against gram positive bacterium S. aureus;
mixture (7) is synergistic against mould A. brasiliensis.

Assignees

• Symrise Ag

Inventors

• Pesaro Manuel
• Join Benoit
• Machinek Arnold

Classifications

• A61Q17/005

  Antimicrobial preparations · CPC title

• A61Q5/006

  Antidandruff preparations · CPC title

• A61K2800/592

  Mixtures of compounds complementing their respective functions · CPC title

• A61Q17/04

  Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title

• A61Q5/02

  Preparations for cleaning the hair · CPC title