Foam Sealing Tape With Tensile Force-Absorbing Layer
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Solution Overview
Problem
Conventional foam sealing tapes with height profiles often exhibit unintentional non-uniformity and dimensional inaccuracies, particularly in long lengths, leading to installation issues in applications like composite panels for building construction, where high dimensional accuracy is crucial.
Innovation Solution
A foam sealing tape with a tensile force-absorbing material layer attached to the foam body, reducing elongation at break by more than 85% and increasing tensile strength, ensuring precise profiling and reproducibility during the die-cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional foam sealing tapes with height profiles are produced using die-cutting processes, then manufacturing efficiency is improved, but dimensional accuracy and profile uniformity deteriorate due to unintentional non-uniformity and stretching
Solution Approach 1:
The patent combines foam material with a tensile force-absorbing material layer to create a composite sealing tape structure. This composite construction allows the foam body to maintain its shape and dimensional stability during die-cutting processes while the tensile force-absorbing layer compensates for stretching and deformation, thereby resolving the contradiction between manufacturing efficiency and dimensional accuracy
Solution Approach 2:
The patent introduces a tensile force-absorbing material layer with specific mechanical properties (different from the foam material) to alter the overall tensile behavior of the sealing tape. This parameter change in material composition enables the tape to resist stretching during production while maintaining the desired height profile and dimensional accuracy
2Adaptability or versatility
If the foam body is made highly elastic to ensure sealing flexibility, then adaptability to joint variations is improved, but resistance to tensile forces during production deteriorates, causing profile deformation
Solution Approach 1:
The patent creates a composite structure where the foam material provides sealing flexibility and adaptability, while the integrated tensile force-absorbing material layer provides the necessary tensile resistance. This composite approach allows both requirements to be satisfied simultaneously without compromising either sealing flexibility or production stability
3Ease of operation
If sealing tapes are produced in long lengths to reduce installation joints, then installation simplicity is improved, but dimensional accuracy deteriorates due to cumulative profiling inaccuracies
Solution Approach 1:
The tensile force-absorbing material layer in the composite structure provides continuous support along the entire length of the sealing tape, preventing cumulative stretching and profile deformation that would otherwise occur in long continuous pieces. This enables production of long sealing tapes with maintained dimensional accuracy and uniformity
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 solution enables the production of sealing tapes with high dimensional accuracy and reproducibility, even in long lengths, by effectively absorbing tensile forces and preventing unwanted stretching, thus ensuring precise shape and dimensional integrity.
Implementation Method 1
a tensile force-absorbing material layer (8) is arranged on a base (3a) of the foam body (2) and is attached to the foam body (2) in a tensile-absorbing manner
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
The tape (1) has a foam body (2) formed of multiple parts and comprising a long side as a base. A deformable material layer is permanently fixed at the base of the foam body in a band longitudinal direction. The foam body has a reduced elongation at break with an absorbing material layer (8). The elongation of the foam body is reduced with respect to a tensile force-receiving material layer and not more than 50 percent to the elongation of the body. The elongation at break is made based on a checking section in longitudinal direction of the sealing tape. Independent claims are also included for the following: (1) a composite board (2) a method for manufacturing a sealing tape.