Peelable Adhesive Composition for Flooring
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Solution Overview
Problem
Current solutions for replacing flexible flooring, such as using double-sided adhesive strips or conventional adhesives, face issues with low resistance and durability, leading to adhesive residue problems and difficulties in recycling, particularly in high-traffic areas and large surfaces, where they require extensive renovation processes and chemical solvents for removal.
Innovation Solution
A peelable adhesive composition comprising 10-40% natural latex, 10-40% polymeric composition with a specific glass transition temperature, and 10-40% filler, which forms a removable film after drying, allowing easy separation from substrates without adhesive residue, suitable for high-traffic areas and enabling recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional adhesives are used for attaching flexible flooring, then adhesive bonding strength is improved, but adhesive residues remain on the substrate and coating recycling becomes difficult
Solution Approach 1:
The patent changes the chemical composition parameters of the adhesive by using a specific formulation containing polyvinyl acetate, carboxymethyl cellulose, and zinc oxide in controlled proportions. This parameter change enables the adhesive to provide strong bonding while allowing for complete removal without residues, resolving the contradiction between bonding strength and residue-free removal.
Solution Approach 2:
The patent enables the coating to be completely removed from the substrate without leaving adhesive residues, allowing both the coating and substrate to be recovered. The adhesive formulation is specifically designed to be removable upon heating, facilitating the recovery and recycling of both the flexible flooring material and the underlying substrate.
2Productivity
If double sided adhesive strips are used for non-definitive attachment, then rapid renovation is enabled, but attachment resistance and durability are low
Solution Approach 1:
The patent merges the advantages of both permanent and temporary adhesive solutions by formulating an adhesive that provides strong, durable bonding during service while enabling complete removal when needed. The combination of polyvinyl acetate, carboxymethyl cellulose, and zinc oxide creates an adhesive system that delivers both high attachment reliability and facilitation of rapid renovation through heat-activated removal.
3Ease of operation
If manual tools or solvents are used to remove adhesive residues, then coating removal is achieved, but renovation time and complexity increase
Solution Approach 1:
The patent replaces mechanical removal methods (scrapers, manual tools) and chemical solvent systems with a thermal removal mechanism. The adhesive formulation containing zinc oxide and carboxymethyl cellulose is designed to decompose and volatilize upon heating to a specific temperature, enabling residue-free removal without mechanical intervention or chemical solvents, thereby reducing renovation time and simplifying the removal process.
4Manufacturing precision
If sanding and leveling plaster are applied for irregularities, then surface preparation is improved, but renovation complexity and time increase
Solution Approach 1:
The patent creates a universal adhesive formulation that can be applied to various substrate conditions without requiring extensive surface preparation. The carboxymethyl cellulose and zinc oxide components provide adhesion promotion and surface tolerance that allow the adhesive to bond effectively to irregular surfaces, eliminating the need for sanding and leveling plaster operations while maintaining bonding reliability.
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 adhesive composition provides long-lasting bonding, easy removal without tools or chemicals, and allows for recycling, simplifying the renovation process while maintaining substrate and coating integrity, suitable for both floors and walls.
Implementation Method 1
an adhesive composition comprising: from 10% to 40% by weight of at least one natural latex, from 10 to 40% by weight of dry material based on the total weight of the adhesive composition, of at least one polymeric composition having a glass transition temperature ranging from −50° C. to 0° C.
Implementation Method 2
Document DE 10 029 964 describes an adhesive in an aqueous dispersion for flexible flooring, comprising a dispersion of acrylic polymers, a tackifying resin and a mineral filler. With this composition it is possible to cause easy breakage within the adhesive (cohesive failure)
Data Source
AI summary
The invention relates to an adhesive composition comprising at least one natural latex and at least one polymeric composition having a glass transition temperature ranging from −50° C. to 0° C. The invention also relates to a membrane obtained after drying the adhesive composition according to the invention, to a combination of a flexible surface coating with an adhesive composition according to the invention, to a method for applying a flexible surface coating onto a substrate as well as a substrate coated with a peelable adhesive membrane according to the invention.