RKW has been granted a patent for a laminate composite featuring two laminations with an imprint between them. The second lamination includes multiple layers, one of which contains a UV absorber and has a lower density than the others, which are denser by at least 1.005 times. GlobalData’s report on RKW 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 RKW, was a key innovation area identified from patents. RKW'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.
Laminate composite with uv absorber for imprint protection
The granted patent US12049064B2 describes a laminate composite designed to enhance the protection of an imprint situated between two laminations. The composite features a second lamination that consists of at least two layers, with one layer incorporating a UV absorber to safeguard the imprint. Notably, this UV-absorbing layer has a lower density compared to at least one of the other layers, which possess a higher density by a factor of at least 1.005. The layers are primarily composed of polyolefins, with specific mentions of low-density polyethylene (LDPE) or linear low-density polyethylene (LLDPE) for the UV-absorbing layer, and medium-density polyethylene (MDPE) or high-density polyethylene (HDPE) for the other layers. The patent also specifies thickness parameters for the laminations, with the second lamination being less than 60 µm and the first lamination being less than 200 µm.
Further claims detail the composition and functionality of the UV-absorbing layer, which may include organic or inorganic UV absorbers, with a minimum content of 1 wt. % for the latter. Additionally, the second lamination may contain UV stabilizers, specifically hindered amine light stabilizers (HALS). The design allows for the UV-absorbing layer to be thicker than the other layers by a factor of more than 1.1, and it can be embedded between two higher-density layers. The patent also encompasses applications of the laminate composite, including its use in bags for bulk materials, emphasizing its structural integrity and protective features. Overall, the claims outline a composite material that combines various polyolefin layers with specific density and thickness characteristics to enhance durability and UV protection.
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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.
