Yokohama Rubber has filed a patent for a method of molding a sandwich panel using a super engineering plastic foam core material with a high glass transition temperature and epoxy resin skin material. The skin material includes specific types of epoxy resins and a curing agent. GlobalData’s report on Yokohama Rubber gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Yokohama Rubber, Anti-skid tyre treads was a key innovation area identified from patents. Yokohama Rubber's grant share as of January 2024 was 33%. Grant share is based on the ratio of number of grants to total number of patents.
Method of molding sandwich panel with specific materials
The patent application (Publication Number: US20240034045A1) describes a method for molding a sandwich panel using a super engineering plastic foam core material with specific characteristics. The method involves providing a prepreg or a combination of prepreg and adhesive on one or both surfaces of the core material to create a skin material. The skin material includes specific epoxy resins and a curing agent to ensure proper bonding and strength of the sandwich panel.
Furthermore, the method specifies the use of a polyethersulfone (PES) foam as the super engineering plastic foam, with a recommended bulk density range. The process also includes heating and curing the skin material to achieve the desired properties without compromising the integrity of the core material. Additionally, the composition of the epoxy resins in the skin material, including their molecular weight, structure, and viscosity, is crucial for the successful molding of the sandwich panel. The method also allows for the use of different types of prepreg materials and adhesives to suit specific requirements, providing flexibility in the manufacturing process.
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