Silicone-Silicate Primer for Eye Shadow Wear Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Color cosmetics, especially powder forms like eye shadow, tend to crease or wear off during the day, requiring frequent reapplication, which is inconvenient for busy individuals.
Innovation Solution
A keratin surface primer composition containing a polycondensate of silanol endblocked polydimethylsiloxane and silicate resin, a copolymer of vinyl pyrrolidone and long chain alpha olefin, and a laminar montmorillonite mineral, along with a volatile solvent, is applied to improve adhesion and wear of color cosmetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If powder color cosmetic is applied to keratin surface, then ease of application is improved, but wear resistance deteriorates
Solution Approach 1:
A primer composition is applied to the keratin surface before applying the powder color cosmetic. The primer contains a polycondensate of silanol endblocked polydimethylsiloxane and silicate resin that creates an adhesive base layer, allowing the powder cosmetic to adhere better and resist creasing and wear throughout the day.
2Reliability
If primer composition is applied, then adhesion of color cosmetic is improved, but composition complexity increases
Solution Approach 1:
The primer composition uses a composite material system consisting of a polycondensate formed by reacting silanol endblocked polydimethylsiloxane with silicate resin. This composite provides superior adhesion properties while maintaining a manageable formulation through the synergistic interaction of the silicone and silicate components.
3Adaptability or versatility
If non-reactive polycondensate is used, then compatibility with copolymer and montmorillonite is improved, but chemical reactivity is reduced
Solution Approach 1:
The polycondensate is formulated with controlled reactivity parameters where the silanol endblocked polydimethylsiloxane reacts with silicate resin to form a non-reactive network. This parameter adjustment ensures compatibility with the copolymer of vinyl pyrrolidone and long chain alpha olefin, as well as the laminar montmorillonite mineral, preventing unwanted cross-reactions while maintaining adhesive functionality.
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 primer significantly enhances the color retention and reduces creasing of eye shadow, maintaining its appearance and integrity throughout the day without the need for reapplication.
Implementation Method 1
from 0.1 to 85% of at least one volatile solvent; allowing the primer composition to dry for at least 1 second
Implementation Method 2
a non-sensitizing pressure sensitive adhesive that is the polycondensate of a silanol endblocked polydimethylsiloxane and a silicate resin; to improve the wear and adhesion of the color cosmetic to the skin
Implementation Method 3
from 0.01 to 35% of at least one copolymer of vinyl pyrrolidone and a long chain alpha olefin; from 0.01 to 70% of at least one laminar montmorillonite mineral; maintains its appearance and integrity throughout the day
Data Source
AI summary
A composition comprising at least one non-sensitizing pressure sensitive adhesive that is the polycondensate of a silanol endblocked polydimethylsiloxane and a silicate resin; at least one copolymer of vinyl pyrrolidone and a long chain alpha olefin; at least one montmorillonite mineral; and at least one volatile solvent; and a related methods and kits.