High-clarity aqueous concentrates of 4-hexylresorcinol

Patent metadata

Field	Value
Publication number	US-9370474-B2
Application number	US-201313779854-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Oct 2, 2009
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

The present invention relates to hexylresorcinol/water concentrates that are high in clarity, easily handled, and readily blended with other ingredients to form skin care compositions.

First claim

The invention claimed is:

1. A method of treating a sign of skin aging, which comprises (i) preparing a formulated composition by mixing (a) high clarity aqueous concentrate consisting of water and from about 64% to about 80% by weight of 4-hexylresorcinol and (b) a secondary composition comprising a cosmetically or pharmaceutically active agent selected from the group consisting of anti-acne agents, anti-microbial agents, anti-inflammatory agents, anti-mycotic agents, anti-parasite agents, external analgesics, sunscreens, photoprotectors, antioxidants, keratolytic agents, vitamins, anti-perspiration agents, deodorants, skin depigmentation agents, anti-aging agents, anti-wrinkle agents, pH adjusters, preservatives, and anti-oxidants; and (ii) topically applying said formulated composition to skin in need of treatment for one or more signs of skin aging.

2. The formulated composition of claim 1 , wherein the cosmetically or pharmaceutically active agent is selected from the group consisting of anti-aging agents, anti-wrinkle agents and anti-oxidants.

3. The method of claim 1 , wherein the formulated composition is in the form of solution, dispersion, emulsion, microemulsion, liposomal system, gel, lotion, cream, stick, spray, or ointment.

4. A method of making a composition, comprising mixing a high clarity aqueous concentrate of 4-hexylresorcinol with a secondary composition, wherein the aqueous concentrate consists of (i) about 64% to about 80% by weight of 4-hexylresorcinol and (ii) water; and the secondary composition comprises an ingredient selected from the group consisting of hydrophobic agents, surface-tension depressing agents, fragrances, and combinations thereof.

5. A method of making a composition, comprising mixing a high clarity aqueous concentrate of 4-hexylresorcinol with a secondary composition, wherein the aqueous concentrate consists of (i) about 64% to about 80% by weight of 4-hexylresorcinol and (ii) water; and the secondary composition comprises a cosmetically or pharmaceutically active agent selected from the group consisting of anti-acne agents, anti-microbial agents, anti-inflammatory agents, anti-mycotic agents, anti-parasite agents, external analgesics, sunscreens, photoprotectors, antioxidants, keratolytic agents, vitamins, anti-perspiration agents, deodorants, skin depigmentation agents, anti-aging agents, anti-wrinkle agents, pH adjusters, preservatives, and anti-oxidants.

Assignees

• Johnson & Johnson Consumer Inc

Inventors

• Johnson Kalonda Tymika
• Lemmo John
• Southall Michael
• Wen Ping

Classifications

• A61P25/04

  Centrally acting analgesics, e.g. opioids · CPC title

• A61P31/00

  Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics · CPC title

• A61P3/02

  Nutrients, e.g. vitamins, minerals · CPC title

• A61P29/00

  Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID] · CPC title

• A61P33/00

  Antiparasitic agents · CPC title