Conformable Adhesive Articles with Compliant Layer for Rough Surfaces
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Solution Overview
Problem
Existing adhesive products lack enhanced conformability to various surfaces, particularly rough or textured ones, which limits their holding power and versatility.
Innovation Solution
The development of adhesive articles featuring a combination of a releasable layer and a compliant layer, where the releasable layer detaches from both the surface and the compliant layer during removal at an angle of less than 35 degrees, increasing adhesive contact area by at least 10% and maintaining damage-free removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional adhesive layer is used, then the adhesive article can be applied to surfaces, but it lacks enhanced conformability to rough or textured surfaces
Solution Approach 1:
The patent introduces a compliant layer with flexible properties that can conform to rough or textured surfaces. This layer acts as a flexible interface between the adhesive and the substrate, allowing the adhesive article to adapt to surface irregularities while maintaining reliable holding power through increased contact area.
Solution Approach 2:
The patent creates a composite structure combining a traditional adhesive layer with a compliant layer having different mechanical properties. This composite construction allows the adhesive article to simultaneously achieve conformability to rough surfaces and maintain strong holding power, resolving the contradiction between adaptability and reliability.
2Object-affected harmful factors
If the adhesive article is removed at a low angle, then clean removal without damage is achieved, but the releasable layer must detach from both surface and compliant layer
Solution Approach 1:
The patent designs the releasable layer with dynamic detachment characteristics that respond to removal angle. At low removal angles, the layer simultaneously detaches from both the substrate and compliant layer, enabling clean removal without surface damage while managing the complexity through angle-dependent behavior.
Solution Approach 2:
The patent utilizes changes in detachment parameters based on removal angle. The releasable layer is designed to change its bonding state dynamically during removal, transitioning from adhered to detached at specific angle thresholds, which enables damage-free removal while controlling the complexity of the detachment process.
3Strength
If the adhesive contact area is increased by at least 10%, then holding power is improved, but the adhesive article structure becomes more complex
Solution Approach 1:
The compliant layer acts as a flexible element that increases adhesive contact area by at least 10% on rough surfaces. This flexible component conforms to surface irregularities, expanding the effective bonding area and improving holding power without requiring significant structural complexity in the overall adhesive article design.
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 enhanced conformability of the adhesive articles improves their holding power and allows use on new surfaces like cinderblock, while maintaining the ability to remove without damage, offering increased adhesive contact and shear holding power.
Implementation Method 1
The second major surface including a pressure sensitive adhesive capable of adhering the adhesive article to a surface
Implementation Method 2
the compliant layer increases the area of adhesive contact to the substrate by at least 10%
Implementation Method 3
the releasable layer debonds from both the surface and the compliant layer when the adhesive article is stretch released at an angle of less than 35 degrees
Data Source
AI summary
The present disclosure generally relates to conformable adhesive articles that are capable of attaching or adhering to a substrate and that can be removed from the substrate without causing damage to the substrate. The present disclosure also generally relates to methods of making and using such adhesive articles. In some embodiments, the adhesive article includes (1) a releasable layer having a first major surface and a second major surface; the second major surfaces including a pressure sensitive adhesive capable of adhering the adhesive article to a surface; and (2) a compliant layer having a first major surface and a second major surface; the second major surface of the compliant layer adjacent to the first major surface of the releasable layer. In some embodiments, the releasable layer debonds from both the surface and the compliant layer when the adhesive article is stretch released at an angle of less than 35 degrees.