Saudi Arabian Oil. has been granted a patent for a method of producing a foamed part using long glass fiber-filled polymeric material. The process involves a pressurized plasticizing unit that minimizes glass fiber breakage, resulting in longer post-molding fiber lengths compared to traditional methods. GlobalData’s report on Saudi Arabian Oil 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 Saudi Arabian Oil, AI assisted CAD was a key innovation area identified from patents. Saudi Arabian Oil's grant share as of July 2024 was 43%. Grant share is based on the ratio of number of grants to total number of patents.
Foamed part with long glass fiber filled polymeric material
The granted patent US12070882B2 outlines a method for producing a foamed part using a glass fiber-filled polymeric material through an injection molding process. The method begins with the introduction of the polymeric material into the hopper of an injection molding machine, where it is melted to form a homogeneous melt. A blowing agent is then pressurized within the plasticizing unit, which is sealed to prevent the loss of the blowing agent. The process emphasizes maintaining a relatively flat pressure profile during homogenization to minimize glass fiber breakage, ensuring that the post-molding length of the glass fibers in the foamed part is equal to or greater than that in a non-foamed counterpart. The method also specifies that the foamed part can achieve a weight reduction of at least 5% compared to a similarly dimensioned non-foamed part.
Additionally, the patent details various types of blowing agents that can be utilized, including gases such as carbon dioxide and nitrogen, and outlines specific pressure ranges for both the blowing agent and the injection molding machine. The method claims advantages such as reduced thickness shrinkage in foamed injected plaques and lower injection pressures required for foamed parts compared to non-foamed parts. The polymeric materials specified for use in this method include a range of thermoplastics, ensuring versatility in applications. Overall, the patent presents a comprehensive approach to enhancing the properties of foamed parts while maintaining the integrity of the glass fibers used in the composite material.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.
