US 12,240,936 B2
Polyurethane with delayed relaxation behaviour for compression products
Christa Huger, Kulmbach (DE); Angelika Scherm, Immenreuth (DE); Seema Agarwal, Marburg (DE); Andreas Greiner, Amöneburg (DE); and Pin Hu, Bayreuth (DE)
Assigned to MEDI GMBH & CO. KG, Bayreuth (DE)
Filed by MEDI GMBH & CO. KG, Bayreuth (DE)
Filed on Jul. 15, 2023, as Appl. No. 18/222,433.
Application 18/222,433 is a continuation of application No. 16/636,493, granted, now 11,746,179, previously published as PCT/EP2018/071535, filed on Aug. 8, 2018.
Claims priority of application No. 17185611 (EP), filed on Aug. 9, 2017.
Prior Publication US 2024/0002573 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 18/24 (2006.01); A61F 13/08 (2006.01); C08G 18/08 (2006.01); C08G 18/32 (2006.01); C08G 18/38 (2006.01); C08G 18/48 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C08L 75/04 (2006.01)
CPC C08G 18/0814 (2013.01) [A61F 13/08 (2013.01); C08G 18/246 (2013.01); C08G 18/3206 (2013.01); C08G 18/3821 (2013.01); C08G 18/4854 (2013.01); C08G 18/6685 (2013.01); C08G 18/7671 (2013.01); C08L 75/04 (2013.01); C08G 2280/00 (2013.01); C08L 2201/12 (2013.01); C08L 2203/02 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01)] 19 Claims
 
1. A compression product comprising an elastic component or material, the elastic component or material having a delayed continuous relaxation behavior, the elastic component or material being capable of applying a compression or a supporting force or a local pressure to a part of the body of a subject, the elastic component or material furthermore being capable of passing through a first phase during which the component or material is expanded, a second phase during which the component or material relaxes without recovering its original shape, and a third phase during which the component or material recovers its original shape with successive deceleration, wherein relaxation is self-initiated in the absence of an external stimulus;
wherein recovery of the original shape does not proceed linearly over time, but is more and more delayed; and
wherein the compression product is selected from the group consisting of a compression hosiery, a compression stocking, sock, knee sock, tights, panty hose, maternity panty hose, a compression knee guard, a compression arm sleeve, a compression waist attachment, belt or girdle, a compression bandage, a body-supporting bandage, an orthosis, a prosthesis liner, a compression wound dressing, a compression plaster or patch, and a compression garment.