Trelleborg has filed a patent for a process to manufacture hybrid products using different elastomer materials. The process involves bonding ethylene propylene diene monomer (EPDM) rubber and silicone rubber using a peroxide curing agent. The silicone rubber used contains alkenyl functionalized polydialkylsiloxanes. This process is particularly useful for creating EPDM-silicone hybrid sealing profiles. GlobalData’s report on Trelleborg gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
Discover B2B Marketing That Performs
Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.
According to GlobalData’s company profile on Trelleborg, marine fenders was a key innovation area identified from patents. Trelleborg's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
The patent filed is for a process to manufacture hybrid elastomer products
A recently filed patent (Publication Number: US20230193009A1) describes a process for manufacturing hybrid products made of two different elastomer materials bonded together. The elastomer materials are based on ethylene propylene diene monomer (EPDM) rubber and silicone rubber. The process involves covulcanization of the EPDM rubber and silicone rubber in the presence of a peroxide curing agent. The silicone rubber used in the process consists of alkenyl functionalized polydialkylsiloxanes.
The patent claims specify the types of alkyl and alkenyl groups that can be used in the silicone rubber, such as methyl, ethyl, propyl, butyl, and octyl groups. The EPDM rubber can contain a conjugated or non-conjugated diene component, which can include various compounds like norbornene, cyclooctadiene, and pentadiene.
The peroxide curing agent options listed in the claims include acetyl peroxide, benzoyl peroxide, and dicumyl peroxide, among others. The process can involve the use of three or four different elastomer materials, with combinations of EPDM rubber and silicone rubber. The hybrid product can be manufactured directly through coextrusion of suitable EPDM and silicone rubber compounds, followed by covulcanization.
The patent claims also mention the presence of silicone rubber on the surface of the hybrid product, with variable thickness options ranging from 2 to 0.01 mm. The covulcanization process is performed at temperatures between 180 to 270°C for a duration of 30 seconds to 30 minutes.
The patent also includes claims for an EPDM-silicone hybrid sealing profile obtained through the described manufacturing process. Additionally, the process can be used specifically for the manufacture of EPDM-silicone hybrid sealing profiles.
In summary, the patent describes a process for manufacturing hybrid products made of EPDM rubber and silicone rubber, bonded together through covulcanization. The process involves the use of specific alkyl and alkenyl groups in the silicone rubber, as well as various diene components in the EPDM rubber. The patent claims cover different variations of the process, including the use of multiple elastomer materials, variable thickness of the silicone rubber, and specific curing agent options. The resulting hybrid product can be used for EPDM-silicone hybrid sealing profiles.
To know more about GlobalData’s detailed insights on Trelleborg, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
