Block Copolymer Lip Gloss with Tackifier and Modified Silicone
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Solution Overview
Problem
Commercially available lip treatment compositions often have limited wear and are uncomfortable due to high molecular weight polymers, which affect the longevity and comfort of shine or gloss.
Innovation Solution
A cosmetic composition comprising a block copolymer with hard and soft segments, a tackifier, and a solvent or solvent mixture capable of solubilizing either or both segments, combined with modified silicone, to enhance stability, lubricity, and adhesion, resulting in a comfortable and long-lasting shine or gloss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If high molecular weight polymers with high viscosity are used to maintain wear of shine/gloss, then the longevity of shine is improved, but the composition becomes tacky and uncomfortable to apply
Solution Approach 1:
The patent divides the polymer structure into distinct hard segments (providing structural integrity and longevity) and soft segments (providing comfort and low viscosity). This segmentation allows each segment to perform its specific function independently, resolving the contradiction between durability and comfort.
Solution Approach 2:
The patent uses block copolymers that combine different polymer segments with complementary properties. The hard segments (e.g., poly styrene) provide structural support for long-lasting shine, while soft segments (e.g., poly butadiene) provide comfort and ease of application, creating a composite material that balances both requirements.
2Illumination intensity
If high refractive index fluids are used to enhance shine or gloss, then the shine is enhanced, but the wear of gloss is limited
Solution Approach 1:
The patent combines high refractive index fluids (for enhanced shine) with block copolymers having specific hard and soft segments (for improved wear). The hard segments provide structural integrity that maintains the gloss-forming fluids in place, while the soft segments ensure comfortable application, thereby extending the wear duration of the enhanced shine.
3Duration of action of stationary object
If high molecular weight polymers are used to maintain wear of shine, then the longevity of gloss is improved, but the composition becomes tacky
Solution Approach 1:
The patent segments the polymer into hard segments (providing structural support for long-lasting gloss) and soft segments (providing non-tacky, comfortable properties). This segmentation prevents the entire polymer from exhibiting both high molecular weight benefits and harmful tackiness simultaneously.
Solution Approach 2:
Different segments of the block copolymer have different local qualities: hard segments provide structural integrity and durability, while soft segments provide comfort and reduce tackiness. Each segment performs its specific function locally within the overall polymer structure.
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 provides improved stability, moisturization, and adhesion, ensuring a comfortable and long-lasting shine or gloss when applied to lips.
Implementation Method 1
the at least one solvent, or solvent mixture, is capable of solubilizing either the at least one hard segment or the at least one soft segment, or both the hard and the soft segments
Data Source
AI summary
A cosmetic composition containing at least one block copolymer having a hard segment and a soft segment, at least one tackifier component, at least one solvent, or solvent mixture, optionally, at least one modified silicone, and optionally, at least one colorant, and wherein the at least one hard segment has a Tg value of about 50° C. or more, and the at least one soft segment has a Tg value of about 20° C. or less, and wherein the at least one solvent, or solvent mixture, is capable of solubilizing either the at least one hard segment or the at least one soft segment, or both the hard and the soft segments.