Cosmetic Composition Using Composite Fillers for Long-Lasting Moisturization

Solution Overview

Problem

Cosmetic products that provide long-lasting effects often result in a dry sensation, making it difficult to maintain a balance between longevity and moisturization, especially in hot and humid climates.

Innovation Solution

A cosmetic composition for the skin comprising a moisturizer, a film-forming polymer, and a combination of hydrophobic silica, perlite, urethane polymer powder, and acrylic polymer powder, which works together to provide long-lasting effects without causing dryness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fatty compounds are added to maintain moisturizing feeling, then moisturizing effect is improved, but long-lasting effects deteriorate

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent uses a composite filler system comprising hydrophobic silica, perlite, urethane polymer powder, and acrylic polymer powder in specific weight ratios. This composite material replaces traditional fatty compounds for moisture retention while the film-forming polymer provides long-lasting effects, resolving the contradiction between moisturizing and longevity.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent specifies precise weight ratio parameters for the filler combination (hydrophobic silica: 30-70 wt%, perlite: 10-40 wt%, urethane polymer powder: 5-30 wt%, acrylic polymer powder: 5-30 wt%) and film-forming polymer content (1-20 wt%), optimizing the balance between moisturizing properties and long-lasting effects by controlling these compositional parameters.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If fatty compounds are added to avoid dry sensation, then skin comfort is improved, but foundation wear resistance deteriorates

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs a composite filler system with hydrophobic silica, perlite, urethane polymer powder, and acrylic polymer powder that provides both skin comfort through moisture retention and foundation wear resistance through the film-forming polymer network, eliminating the need for fatty compounds.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The film-forming polymer acts as an intermediary that creates a durable film on the skin, allowing the cosmetic composition to maintain both skin comfort and wear resistance without relying on fatty compounds that compromise longevity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The composition effectively maintains moisturization while ensuring long-lasting effects, as demonstrated by improved moisturizing feelings and foundation longevity in user evaluations.

Implementation Method 1

at least one film-forming polymer

Methodology Applied
Scientific EffectFilm formation:

Implementation Method 2

hydrophobic silica

Methodology Applied
Scientific EffectHydrophobic effect: Hydrophobe

Implementation Method 3

a combination of the following fillers: (a) hydrophobic silica; (b) perlite; (c) urethane polymer powder; and (d) acrylic polymer powder

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS11771631B2Cosmetic composition comprising a specific filler combination and a film-forming polymer to increase long-lasting effects
Publication Date: 2023.10.03
  • US11771631B2 patent drawing
  • US11771631B2 patent drawing
  • US11771631B2 patent drawing

AI summary

The present invention relates to a cosmetic composition for a keratin substance, for example the skin such as that of the face, comprising: (i) at least one moisturizer; (ii) at least one film-forming polymer; and (iii) a combination of the following fillers: (a) hydrophobic silica: (b) perlite; (c) urethane polymer powder; and (d) acrylic polymer powder. “Long-lasting” effects of a cosmetic composition for a keratin substance comprising at least one moisturizer without creating any dry feeling can be achieved by using both a film-forming polymer and a combination of the following fillers: (a) hydrophobic silica: (b) perlite; (c) urethane polymer powder; and (d) acrylic polymer powder.