Use of compositions comprising destructurized starch in a complexed form as abrasives and/or structuring agents

Patent metadata

Field	Value
Publication number	US-11400041-B2
Application number	US-201716069890-A
Country	US
Kind code	B2
Filing date	Jan 18, 2017
Priority date	Jan 19, 2016
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

This invention relates to the use of microgranules comprising destructurized starch in a complexed form as abrasive and/or structuring agents in cosmetic, dermatological, detergent and cleansing formulations.

First claim

The invention claimed is:

1. A composition selected from the group consisting of cosmetic, dermatological, detergent and cleansing formulations comprising, as abrasive and/or structuring agent, from 1 to 20% by weight, with respect to the total weight of the composition, of microgranules comprising destructurized starch in a complexed form with polymers containing hydrophilic groups intercalated with hydrophobic sequences, said microgranules being in the form of spheroidal particles of diameter between 1 and 100 μm, and wherein the polymers containing hydrophilic groups intercalated with hydrophobic sequences are polyvinyl alcohols having degrees of hydrolysis from 10 to 100%.

2. The composition according to claim 1 , in which the said microgranules comprise, with respect to the total of components i-iv:
i. 30-80% of destructurized starch;
ii. 20-70% of polymers containing hydrophilic groups intercalated with hydrophobic sequences;
iii. 0-25% of plasticizers;
iv. 0-50% of water.

3. The composition according to claim 1 , wherein the microgranules are in the form of spheroidal particles of diameter between 1 and 60 μm.

4. The composition according to claim 2 , wherein the microgranules are in the form of spheroidal particles of diameter between 1 and 60 μm.

Assignees

• Novamont Spa

Inventors

• Magistrali Paolo
• Marini Nicola
• Petrakou Ioanna

Classifications

• C08L3/02 Primary

  Starch; Degradation products thereof, e.g. dextrin · CPC title

• C08L31/04

  Homopolymers or copolymers of vinyl acetate · CPC title

• A61Q1/02

  Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) · CPC title

• A61K8/025

  Explicitly spheroidal or spherical shape · CPC title

• C08L77/02

  Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence) · CPC title