	US 12,070,966 B2
	Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring
Julien Gouerec, Clichy (FR)
Assigned to SOCIÉTÉ BIC, Clichy (FR)
Appl. No. 17/414,927
Filed by SOCIÉTÉ BIC, Clichy (FR)
PCT Filed Dec. 17, 2019, PCT No. PCT/EP2019/085570 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/127209, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18306712 (EP), filed on Dec. 18, 2018.
Prior Publication US 2022/0063321 A1, Mar. 3, 2022
Int. Cl. B43K 19/14 (2006.01); B29C 48/00 (2019.01); B29C 48/06 (2019.01); B29C 48/21 (2019.01); B43K 19/02 (2006.01); B43K 19/16 (2006.01); B29K 9/06 (2006.01); B29K 33/18 (2006.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B29K 511/14 (2006.01); B29L 31/00 (2006.01)

CPC B43K 19/14 (2013.01) [B29C 48/022 (2019.02); B29C 48/06 (2019.02); B29C 48/21 (2019.02); B43K 19/02 (2013.01); B43K 19/16 (2013.01); B29K 2009/06 (2013.01); B29K 2033/18 (2013.01); B29K 2067/006 (2013.01); B29K 2067/046 (2013.01); B29K 2105/0088 (2013.01); B29K 2511/14 (2013.01); B29L 2031/7254 (2013.01)]

5 Claims

1. A pencil comprising a lead casing surrounding a lead, wherein the lead casing consists of, by weight relative to the total weight of the lead casing:

a) from 70 to 90% of a mixture of polylactic acid and polybutylene adipate terephthalate in a weight ratio polylactic acid/polybutylene adipate terephthalate ranging from 60/40 to 90/10, and

b) from 10 to 20% of vegetable fillers selected from the group consisting of wood fibers.