Saudi Arabian Oil has patented a foamable polycarbonate composition with a unique blend of materials, achieving specific properties like a glass transition temperature below 140°C and an average cell size in the foam of 10 nanometers to 20 micrometers. The composition excludes impact modifiers, fillers, and reinforcing agents. 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 January 2024 was 43%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11884822B2) discloses a novel foamed polycarbonate composition designed for various applications. The composition includes a poly(siloxane) block copolymer, an auxiliary component, and optional additive compositions. The poly(siloxane) block copolymer consists of a combination of bisphenol A carbonate units and dimethylsiloxane units, while the auxiliary component comprises poly(alkylene ester) or poly(aliphatic ester-carbonate) derived from aliphatic dicarboxylic acid and bisphenol A. The composition, which does not contain impact modifiers, fillers, or reinforcing agents, has a siloxane content ranging from 0.001 to 3 wt % and a glass transition temperature below 140°C.
Moreover, the patent details a method for forming articles using the foamed polycarbonate composition, involving immersing a mixture of the poly(siloxane) block copolymer, auxiliary component, and optional additives in a blowing agent. The saturated foamed composition is then heated to temperatures not exceeding 130°C, with foaming processes including solid state foaming, extrusion foaming, bead foaming, or foam injection molding. The resulting foamed composition exhibits an average cell size ranging from 10 nanometers to 20 micrometers, catering to a wide range of applications in various industries.
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