US 12,331,259 B2
Flammable and fire-resistant carbonaceous heat source, method for preparing same and use thereof
Chenghao Luo, Wuhan (CN); Dan Li, Wuhan (CN); Long Huang, Wuhan (CN); Hao Liu, Wuhan (CN); Yikun Chen, Wuhan (CN); Jian Zhang, Wuhan (CN); and Zean Wang, Wuhan (CN)
Assigned to CHINA TOBACCO HUBEI INDUSTRIAL CORPORATION LIMITED, Wuhan (CN)
Appl. No. 17/775,637
Filed by CHINA TOBACCO HUBEI INDUSTRIAL CORPORATION LIMITED, Wuhan (CN)
PCT Filed Oct. 26, 2020, PCT No. PCT/CN2020/123682
§ 371(c)(1), (2) Date Sep. 14, 2022,
PCT Pub. No. WO2021/114899, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 201911263915.0 (CN), filed on Dec. 11, 2019.
Prior Publication US 2023/0242828 A1, Aug. 3, 2023
Int. Cl. C10L 5/44 (2006.01); A24D 1/00 (2020.01); A24D 1/22 (2020.01); C10L 5/14 (2006.01)
CPC C10L 5/447 (2013.01) [A24D 1/002 (2013.01); A24D 1/22 (2020.01); C10L 5/14 (2013.01); C10L 2270/08 (2013.01); C10L 2290/08 (2013.01); C10L 2290/30 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A flammable and fire-resistant carbonaceous heat source, comprising flammable carbon, flame-retardant carbon and a binder, wherein,
the flame-retardant carbon comprises graphite and an auxiliary carbon source, the binder comprises glutinous rice glue, and based on a total weight of the flammable and fire-resistant carbon heat source, a content of each of the flammable carbon, the flame-retardant carbon and the binder is 40-75 wt %, 10-45 wt % and 3-15 wt %;
a maximum weight loss peak temperature of the flammable carbon is 250-549° C. as determined by thermogravimetric analysis, and a complete burnout temperature is lower than 650° C.;
the flame-retardant carbon is carbonaceous materials with higher ignition points than that of the flammable carbon;
a maximum weight loss peak temperature of the auxiliary carbon source in the flame-retardant carbon is 551-700° C. as determined by thermogravimetric analysis, and a complete burnout temperature is lower than 800° C.