Segmented Flexible Hardgood for Low-Peel-Force Adhesive Mounting
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Solution Overview
Problem
Existing peelable adhesive products often fail to work effectively on painted and rough surfaces, exhibit low shear strength, and can cause damage when removed, requiring multiple steps or complex constructions.
Innovation Solution
The development of adhesive articles with a flexible body comprising linear segments and connector elements, allowing for anisotropic flexibility, which reduces the peel force required for removal and enhances shear strength, enabling damage-free removal from various surfaces, including painted and rough surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid hardgood is used to mount objects, then the mounting device can hold weight, but the peel force necessary to remove the mounting device increases
Solution Approach 1:
The body is divided into multiple linear segments connected by connector elements, creating a flexible structure that can bend and deform during removal. This segmentation allows the mounting device to maintain structural integrity for weight holding while reducing peel force through controlled deformation of the segments and connectors.
2Ease of operation
If existing peelable adhesive products are used on painted and rough surfaces, then they can be removed, but they often do not work well and can cause damage
Solution Approach 1:
The patent modifies the physical parameters of the mounting device by introducing anisotropic flexibility through the segmented body structure with connector elements. This allows the device to adapt its mechanical properties to different surface conditions, maintaining reliable performance on painted and rough surfaces while enabling damage-free removal through controlled flexibility in specific directions.
3Force
If the backing material stiffness is reduced to reduce peel force, then peel force decreases, but the construction may require thicker materials which increase damage potential
Solution Approach 1:
The patent employs a flexible body composed of thin linear segments and connector elements that provides the necessary flexibility for low peel force removal. This flexible shell structure achieves the desired mechanical properties without requiring thick materials, as the segmented design allows controlled deformation at the connector elements while maintaining overall structural integrity.
4Ease of operation
If existing peelable products are designed for clean removal, then they remove without damage, but they exhibit low shear strength and can hold little weight
Solution Approach 1:
The patent creates a composite structure combining rigid linear segments with flexible connector elements. This composite design provides both the shear strength needed to hold weight (through the rigid segments) and the flexibility required for clean removal (through the flexible connectors), resolving the contradiction between weight-bearing capacity and ease of removal.
Data Source
AI summary
The present disclosure provides adhesive mounting articles that can be removed from surfaces without damage by having reduced contribution of a hardgood to the peel force generated by the adhesive article during removal. In some instances, this can be accomplished by a hardgood that is flexible in a peel direction and rigid in a weight hanging direction. Such hardgoods may include a plurality of minimally connected body segments arranged about the transverse axis of the hardgood body.