Dart Container has patented a solid state foamed microcellular foam sheet for container formation. The sheet includes a central foamed section with two populations of cells, one smaller than the other, and discrete unfoamed sections forming a skin layer. GlobalData’s report on Dart Container gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
According to GlobalData’s company profile on Dart Container, was a key innovation area identified from patents. Dart Container's grant share as of February 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.
Solid state foamed microcellular foam sheet for container formation
The granted patent (Publication Number: US11890792B2) discloses a solid state foamed microcellular foam sheet designed for use in forming containers. The foam sheet includes a central foamed section with a first population of cells, interspersed with a second population of cells of smaller size, and one or more discrete unfoamed sections forming a skin layer on one or both sides of the central foamed section. The material used for the microcellular foam sheet includes various polymeric materials such as polyethylene terephthalate (PET), polypropylene (PP), and polyethylene (PE), among others.
Furthermore, the patent claims cover aspects like the formation of multi-layer sheets, co-extrusion, lamination, or extrusion coating with additional layers, as well as the inclusion of nucleating agents like talc and polytetrafluoroethylene in the polymeric material. The foam sheet's density is specified to be less than 1 g/cm3, with the presence of blowing agents in the range of 0.1 to 5 wt. %, which can be physical or chemical blowing agents. The chemical blowing agent may include combinations like sodium bicarbonate and citric acid, sodium citrate and calcium carbonate, or calcium distearate, limestone, and calcium oxide. These claims highlight the innovative features and materials used in the development of the solid state foamed microcellular foam sheet for container applications.
To know more about GlobalData’s detailed insights on Dart Container, buy the report here.
Premium 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.
