Silicone Surface Protection Composition for Water and Oil Repellency
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Solution Overview
Problem
Current non-fluoropolymer technologies face challenges in achieving efficient water and oily soil repellency on surfaces while being cost-effective and environmentally friendly, with existing compositions often requiring significant sacrifices in stability and performance.
Innovation Solution
A surface treatment composition comprising an aqueous polyorganosiloxane fluid-silicone resin mixture, with specific molecular formulations and ratios, along with a protonating agent and optional emulsifier, applied in various forms such as laundry sprays or hard surface cleaners, to provide water and oil repellency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluoropolymers are used to provide water and oil repellency, then stain protection efficiency is improved, but environmental and health safety concerns arise due to potential persistent bioaccumulation and toxicity
Solution Approach 1:
The patent removes fluoropolymer components from the composition entirely, extracting the harmful substance while retaining the desired water and oil repellency function through alternative polyorganosiloxane and silicone resin components
Solution Approach 2:
The patent employs conventional polyorganosiloxane and silicone resin materials that are environmentally benign and do not persist in the environment like fluoropolymers, effectively using shorter-lived, safer materials to replace persistent harmful ones
2Object-affected harmful factors
If non-fluoropolymer compositions are used to avoid environmental concerns, then environmental safety is improved, but water and oily soil repellency efficiency deteriorates
Solution Approach 1:
The patent creates a composite system combining polyorganosiloxane fluids with silicone resins in specific ratios, where the synergistic interaction between these components achieves superior water and oil repellency that neither component could achieve alone, matching or exceeding fluoropolymer performance
Solution Approach 2:
The patent optimizes specific parameters including the ratio of polyorganosiloxane to silicone resin (2:98 to 95:5), molecular weight ranges, and viscosity specifications to maximize repellency efficiency while maintaining environmental safety
3Object-affected harmful factors
If non-fluoropolymer compositions are developed to provide stain protection, then environmental friendliness is improved, but product stability and performance characteristics deteriorate
Solution Approach 1:
The patent specifies precise parameter ranges including pH (2-8), viscosity (1-100,000 cP), and compositional ratios to ensure product stability during storage and application, preventing phase separation and maintaining consistent performance
Solution Approach 2:
The patent employs emulsifiers as intermediary substances to stabilize the mixture of polyorganosiloxane and silicone resin, preventing phase separation and ensuring homogeneous distribution of active ingredients throughout the composition
4Object-affected harmful factors
If conventional non-fluoropolymer treatments are applied to achieve water repellency, then environmental safety is improved, but cost-effectiveness and convenience deteriorate
Solution Approach 1:
The patent uses commercially available, inexpensive polyorganosiloxane and silicone resin materials that are readily produced at scale, making the treatment cost-effective compared to specialized fluoropolymer alternatives while providing sufficient durability
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 reduces the propensity of surfaces to stain from water or oil-based soils, offering high efficiency and stability in a convenient and affordable format, suitable for diverse substrates including textiles and hard surfaces.
Implementation Method 1
provide protection of surfaces by repelling water and oil based soils from the surface
Implementation Method 2
aqueous polyorganosiloxane fluid-silicone resin mixture
Data Source
AI summary
The present invention encompasses a surface treatment composition which comprises a polyorganosiloxane fluid-silicone resin mixture and a carrier. The polyorganosiloxane fluid-silicone resin mixture comprises about 2% to about 95%, by weight of the mixture, of one or more polyorganosiloxane fluid compounds; from about 1% to about 10%, by weight of the mixture, of one or more silicone resin, a protonation agent, at least about 5%, by weight of the mixture; of water; and optionally, less than about 5%, by weight of the mixture, of an emulsifier.