US 12,460,108 B2
Glue stick composition
Carine Bethouart, Clichy (FR)
Assigned to Société BIC, Clichy (FR)
Appl. No. 17/603,760
Filed by Société BIC, Clichy (FR)
PCT Filed Apr. 10, 2020, PCT No. PCT/EP2020/060355
§ 371(c)(1), (2) Date Oct. 14, 2021,
PCT Pub. No. WO2020/212291, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 19305493 (EP), filed on Apr. 16, 2019.
Prior Publication US 2022/0177746 A1, Jun. 9, 2022
Int. Cl. C09J 9/00 (2006.01); C09J 11/08 (2006.01); C09J 103/02 (2006.01)
CPC C09J 9/005 (2013.01) [C09J 11/08 (2013.01); C09J 103/02 (2013.01); C09J 2401/00 (2013.01); C09J 2403/00 (2013.01)] 16 Claims
 
1. A water based glue stick composition, the composition comprising:
water in a range of 40-70 weight % based on the total weight of the glue stick composition;
an adhesive selected from the group consisting of starch, starch derivatives, and a mixture thereof,
wherein the adhesive is in a range of 15-35 weight % based on the total weight of the glue stick composition; and
an additive of nanocrystalline cellulose mixed with the adhesive,
wherein the nanocrystalline cellulose content is in the range 0.1-1.5 weight % based on the total weight of the composition,
wherein the nanocrystalline cellulose in the composition has a particle length in the range of 40-160 nm, measured by atomic force microscopy, and
wherein the composition is solidified.