US 12,103,329 B2
Eraser
Tanja Maderer, Wendelstein (DE)
Assigned to STAEDTLER SE, Nuremberg (DE)
Appl. No. 17/258,656
Filed by STAEDTLER SE, Nuremberg (DE)
PCT Filed Jul. 8, 2019, PCT No. PCT/EP2019/025219
§ 371(c)(1), (2) Date Jan. 7, 2021,
PCT Pub. No. WO2020/020485, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 10 2018 005 822.1 (DE), filed on Jul. 25, 2018.
Prior Publication US 2022/0348036 A1, Nov. 3, 2022
Int. Cl. B43L 19/00 (2006.01); C08K 3/013 (2018.01); C08K 5/00 (2006.01); C08K 5/11 (2006.01); C08K 11/00 (2006.01)
CPC B43L 19/0025 (2013.01) [C08K 3/013 (2018.01); C08K 5/0016 (2013.01); C08K 5/11 (2013.01); C08K 11/00 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An eraser for removing strokes from writing, painting and/or drawing tools, comprising: at least one binder; and at least one plasticizer, wherein, the at least one plasticizer includes pentaerythritol tetravalerate as a first plasticizer component and epoxidized soybean oil (ESBO) as a second plasticizer component, wherein the eraser is composed of:
 
 
 
 Binder 20-60% by weight,
 
 pentaerythritol tetravalerate 10-30% by weight,
 
 epoxidized soybean oil 10-30% by weight,
 
 Fillers 0-60% by weight,
 
 Additives 0-10% by weight.