IP Library › Granted Patent US 7,854,925
Granted Patent B2
US 7,854,925 · App. 10/116,368 · Granted Dec 21, 2010

Use of solubilized, anionic polyurethanes in skin care compositions

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Quick Facts
Patent No.
US 7,854,925
App. No.
10/116,368
Granted
Dec 21, 2010
Kind
B2
Abstract

This patent pertains to the use of anionic polyurethanes in a solubilized state which contribute to enhanced aesthetics to skin care compositions. The polyurethanes may be used alone or in combination with another polymer, particularly acrylate and methacrylate polymers.

Claims (6)

1. A skin care composition comprising an aqueous-based formulation of a mixture of a preneutralized, solubilized anionic polyurethane and a solubilized poly(meth)acrylate polymer, wherein the amount of preneutralized, solubilized anionic polyurethane and poly(meth)acrylate is 5 wt % or less by weight of the composition and wherein the polyurethane and the poly(meth)acrylates provide both SPF protection and water resistance; and at least one solvent, wherein the composition has enhanced aesthetics on skin, wherein the composition is less greasy, less tacky, less shiny and absorbed faster than a skin care composition without the polyurethane, and wherein the composition is in the form of an emulsion or a colloid.

2. The composition of claim 1 wherein the poly(meth)acrylate is polyacrylate.

3. The composition of claim 1 wherein the skin care composition is selected from the group consisting of sunscreens, suntan compositions, after-sun compositions, hand moisturizers, body moisturizers, face creams, face lotions, skin tightening compositions, skin firming compositions, skin cleansing compositions, color cosmetics, and whitening compositions.

4. The composition of claim 1 wherein the amount of preneutralized, solubilized anionic polyurethane and poly (meth) acrylate is about 0.1 wt % to 5 wt % by weight of the composition.

5. The composition of claim 4 , wherein the amount of preneutralized, solubilized anionic polyurethane and poly (meth) acrylate is about 0.2 wt % to 5 wt % by weight of the composition.

6. The composition of claim 4 , wherein the amount of preneutralized, solubilized anionic polyurethane and poly (meth) acrylate is about 0.5 wt % to 5 wt % by weight of the composition.

Assignments (5)
CHANGE OF NAME Recorded Sep 18, 2019
From: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
To: NOURYON CHEMICALS INTERNATIONAL B.V.
Reel/Frame 050426/0671 →
SECURITY INTEREST Recorded Oct 1, 2018
From: STARFRUIT US MERGER SUB 1 LLC; STARFRUIT US MERGER SUB 2 LLC; AKZO NOBEL SURFACE CHEMISTRY LLC; AKZO NOBEL CHEMICALS B.V.; AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
To: WILMINGTON TRUST (LONDON) LIMITED, AS COLLATERAL AGENT
Reel/Frame 047231/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2017
From: AKZO NOBEL N.V.
To: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
Reel/Frame 044427/0759 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2009
From: NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION
To: AKZO NOBEL N.V.
Reel/Frame 022117/0694 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2002
From: LEBLANC, JEAN-PIERRE; NOOR, MONA; PASAPANE, JOSEPH; BABENKO, TAMARA
To: NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION
Reel/Frame 013004/0438 →