Manufacturing method of special-purpose items
By preheating and applying a primer to a metal molded plate, followed by a resin film formation using heat treatments, the method addresses the issues of insufficient film thickness and weather resistance in vinyl chloride resin fittings, resulting in a durable and weather-resistant product.
JP2026061696APending Publication Date: 2026-04-09S B SHEET WATERPROOF SYST
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2026-04-09
AI Technical Summary
Technical Problem
Existing methods for manufacturing fittings with vinyl chloride resin films suffer from insufficient film thickness, leading to issues like cracks, pinholes, and decreased weather resistance due to plasticizer loss over time.
Method used
A method involving preheating a metal molded plate, applying a primer, and forming a resin film using a fluid immersion process with heat treatments such as dielectric, induction, or electric heating to ensure a sufficient thickness and enhance weather resistance.
Benefits of technology
The method produces a resin film with adequate thickness and improved weather resistance, reducing the risk of cracks and pinholes while maintaining mechanical strength and bonding strength with waterproof sheets.
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Smart Images
Figure 2026061696000001_ABST
Abstract
To provide a method for manufacturing a fitting that has a resin film of sufficient thickness and excellent weather resistance. [Solution] The present invention provides a method for manufacturing a fitting, comprising a metal molded plate formed into a predetermined shape and a resin film covering the surface of the metal molded plate, wherein a waterproofing treatment is applied to the outer corner or inner corner, the method comprising the steps of preheating the metal molded plate and applying a primer to the surface of the metal molded plate, and forming the resin film on the surface of the metal molded plate to which the primer has been applied, wherein the step of forming the resin film includes a film-forming treatment in which raw materials are attached to the surface of the metal molded plate by a fluid immersion method while further heating the preheated metal molded plate, thereby forming the resin film.
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Citation Information
Patent Citations
Fixing piece for waterproof sheet for use at outside / inside angle and associate waterproof sheet laying method
JP1998025861A