US 11,672,313 B2
Piece of jewellery made of natural elastomer material
Nicolas Francois, Neuchatel (CH); Julien Dahan, Porrentruy (CH); and Gregory Kissling, La Neuveville (CH)
Assigned to The Swatch Group Research and Development Ltd, Marin (CH)
Filed by The Swatch Group Research and Development Ltd, Marin (CH)
Filed on Mar. 27, 2020, as Appl. No. 16/831,972.
Claims priority of application No. 19176237 (EP), filed on May 23, 2019.
Prior Publication US 2020/0367617 A1, Nov. 26, 2020
Int. Cl. A44C 27/00 (2006.01); C08L 1/02 (2006.01); C08L 27/18 (2006.01); C08K 3/36 (2006.01); C08K 7/02 (2006.01)
CPC A44C 27/001 (2013.01) [C08L 1/02 (2013.01); C08L 27/18 (2013.01); C08K 3/36 (2013.01); C08K 7/02 (2013.01)] 20 Claims
 
1. A piece of jewelry made of a natural elastomer composite material, wherein the natural elastomer composite material comprises a matrix of a natural elastomer material, in which greater than 0% to 6% by weight of cellulose fibres, greater than 0% to 5% by weight of an anti-odour agent, and greater than 0% to 30% by weight of silica, with respect to a total weight of the natural elastomer composite material, are dispersed, and
the cellulose fibres comprise short cellulose fibres and long cellulose fibres, the length of the cellulose fibres lying in a range of from 0.5 mm to 1.5 mm.