Floor Covering Surface Layer Plasticizer Formulation
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Solution Overview
Problem
Existing floor coverings face issues with plasticizer bleed-out, leading to worsened anti-soiling properties when high amounts are used, and reduced flexibility when amounts are minimized, affecting workability.
Innovation Solution
A floor covering with a surface layer containing 20 to 50 parts by mass of plasticizer per 100 parts of thermoplastic resin, where the plasticizer includes 10 to 80% benzoic acid ester-based plasticizer, inhibiting bleed-out while maintaining flexibility and enhancing anti-soiling properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a plasticizer is used in a large amount, then flexibility of the floor covering is improved, but the plasticizer may ooze out causing bleed-out which worsens anti-soiling property
Solution Approach 1:
The patent applies parameter changes by precisely controlling the plasticizer content within 20-50 parts by mass per 100 parts of thermoplastic resin, and specifying the plasticizer composition to include benzoic acid ester-based plasticizer (10-80% by mass), texanol isobutyrate (10-80% by mass), and phosphoric acid ester-based plasticizer (10-80% by mass). This quantitative parameter control prevents plasticizer bleed-out while maintaining the necessary flexibility for workability.
Solution Approach 2:
The patent uses composite materials by formulating a multi-component plasticizer system rather than relying on a single plasticizer type. The surface layer contains a combination of benzoic acid ester-based plasticizer, texanol isobutyrate, and phosphoric acid ester-based plasticizer, creating a composite plasticizer mixture that provides both flexibility and resistance to bleed-out, thereby resolving the contradiction between flexibility and anti-soiling property.
2Reliability
If a plasticizer is reduced to a smaller amount, then bleed-out is inhibited, but flexibility of the floor covering is impaired lowering workability
Solution Approach 1:
The patent resolves this contradiction by optimizing the plasticizer content parameter to a specific range of 20-50 parts by mass per 100 parts of thermoplastic resin. This parameter optimization ensures sufficient plasticizer is present to maintain flexibility and workability, while preventing excessive plasticizer that would cause bleed-out and compromise anti-soiling property.
Solution Approach 2:
The patent employs composite materials by using a multi-component plasticizer formulation that includes benzoic acid ester-based plasticizer, texanol isobutyrate, and phosphoric acid ester-based plasticizer. This composite approach allows the system to achieve both flexibility (through adequate plasticizer content) and bleed-out resistance (through the specific composition and interaction of multiple plasticizer components).
Data Source
AI summary
A floor covering including: a floor covering main body and a surface layer provided on the floor covering main body, wherein the surface layer contains a thermoplastic resin and a plasticizer in an amount of from 20 to 50 parts by mass based on 100 parts by mass of the thermoplastic resin, wherein the plasticizer contains a benzoic acid ester-based plasticizer in an amount of from 10 to 80% by mass. According to the present invention, a floor covering having excellent workability and anti-soiling property can be provided.