Water-based electronic cigarette liquid

Patent metadata

Field	Value
Publication number	US-12433322-B2
Application number	US-202017425707-A
Country	US
Kind code	B2
Filing date	Jan 20, 2020
Priority date	Jan 25, 2019
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A water-based electronic cigarette liquid is disclosed. The water-based electronic cigarette liquid includes the following ingredients in parts by mass: 5-60 parts of water, 5-50 parts of smoke ingredient which is solid at normal temperature and is soluble in water, and 0-30 parts of glycerol. The electronic cigarette liquid in this invention has environmental protection, high safety, comfortable smoking taste, high smoke producing effect, and low viscosity.

First claim

The invention claimed is:

1. A water-based electronic cigarette liquid, comprising following ingredients in parts by mass:
40-60 parts of water;
20-50 parts of smoke providing ingredient which is solid at normal temperature and is soluble in water, wherein the smoke providing ingredient is sugar alcohol, and the sugar alcohol is a mixture of erythritol, sorbitol and xylitol with a mass ratio of erythritol to xylitol ranging from 1:1 to 1:4 and a mass ratio of erythritol to sorbitol ranging from 1:1 to 1:4, or the sugar alcohol is a mixture of erythritol and xylitol with a mass ratio of erythritol to xylitol ranging from 1:1 to 1:4; and
0-20 parts of glycerol.

2. The water-based electronic cigarette liquid according to claim 1 , wherein a viscosity of the water-based electronic cigarette liquid is less than or equal to 200 mPa·s.

3. The water-based electronic cigarette liquid according to claim 1 , wherein a boiling point of the water-based electronic cigarette liquid is less than or equal to 180° C.

4. The water-based electronic cigarette liquid according to claim 1 , wherein a specific heat capacity of the water-based electronic cigarette liquid is more than or equal to 2.8 J/(g·° C.).

5. The water-based electronic cigarette liquid according to claim 1 , wherein:
the water-based electronic cigarette liquid has an average atomization quantity more than or equal to 0.80 μg/puff during smoking, and
an atomization quantity is a weight of aerosol captured.

6. The water-based electronic cigarette liquid according to claim 1 , wherein the water-based electronic cigarette liquid has an average formaldehyde content less than or equal to 1.00 μg/puff and an average acetaldehyde content less than or equal to 0.5 μg/puff during smoking.

7. The water-based electronic cigarette liquid according to claim 1 , wherein the water-based electronic cigarette liquid consists of following ingredients in parts by mass:
20-30 parts of sugar alcohol, 0-10 parts of glycerol, and 40 parts of water.

8. The water-based electronic cigarette liquid according to claim 1 , wherein the water-based electronic cigarette liquid further comprises substances for increasing fragrance and/or a tobacco extract.

9. The water-based electronic cigarette liquid according to claim 8 , wherein the substances for increasing fragrance comprise cigarette essence and/or cigarette flavor.

10. The water-based electronic cigarette liquid according to claim 8 , wherein the water-based electronic cigarette liquid comprises 0-20 parts by weight of tobacco extract.

11. The water-based electronic cigarette liquid according to claim 8 , wherein the water-based electronic cigarette liquid comprises 0.01-10 parts of substances for increasing fragrance.

12. A water-based electronic cigarette liquid, comprising following ingredients in parts by mass:
40-60 parts of water; and
20-50 parts of smoke providing ingredient which is solid at normal temperature and is soluble in water, wherein the smoke providing ingredient is sugar alcohol, and the sugar alcohol is a mixture of erythritol, sorbitol and xylitol with a mass ratio of erythritol to xylitol ranging from 1:1 to 1:4 and a mass ratio of erythritol to sorbitol ranging from 1:1 to 1:4, or the sugar alcohol is a mixture of erythritol and xylitol with a mass ratio of erythritol to xylitol ranging from 1:1 to 1:4.

13. The water-based electronic cigarette liquid according to claim 12 , wherein the water-based electronic cigarette liquid does not comprise propylene glycol.

14. The water-based electronic cigarette liquid according to claim 13 , wherein the water-based electronic cigarette liquid further comprises less than or equal to 20 parts of glycerin.

15. The water-based electronic cigarette liquid according to claim 12 , wherein the water-based electronic cigarette liquid does not comprise glycerol or propylene glycol.

16. The water-based electronic cigarette liquid according to claim 12 , wherein a boiling point of the water-based electronic cigarette liquid is less than or equal to 180° C.

17. The water-based electronic cigarette liquid according to claim 12 , wherein a specific heat capacity of the water-based electronic cigarette liquid is more than or equal to 2.8 J/(g·° C.).

18. The water-based electronic cigarette liquid according to claim 12 , wherein:
the water-based electronic cigarette liquid has an average atomization quantity more than or equal to 0.80 μg/puff during smoking, and
an atomization quantity is a weight of aerosol captured.

19. The water-based electronic cigarette liquid according to claim 12 , wherein the water-based electronic cigarette liquid has an average formaldehyde content less than or equal to 1.00 μg/puff and an average acetaldehyde content less than or equal to 0.5 μg/puff during smoking.

20. The water-based electronic cigarette liquid according to claim 12 , wherein the water-based electronic cigarette liquid further comprises substances for increasing fragrance and/or a tobacco extract.

21. The water-based electronic cigarette liquid according to claim 11 , wherein the substances for increasing fragrance and/or the tobacco extract comprise a mildew inhibitor.

22. The water-based electronic cigarette liquid according to claim 11 , wherein the substances for increasing fragrance comprise cigarette essence and/or cigarette flavor.

23. The water-based electronic cigarette liquid according to claim 20 , wherein the water-based electronic cigarette liquid comprises 0-20 parts by weight of tobacco extract.

24. The water-based electronic cigarette liquid according to claim 20 , wherein the water-based electronic cigarette liquid comprises 0.01-10 parts of substances for increasing fragrance.

25. The water-based electronic cigarette liquid according to claim 12 , wherein the water-based electronic cigarette liquid has a stable atomization effect during continuous smoking.

26. The water-based electronic cigarette liquid according to claim 25 , wherein:
an atomization effect floating value of the water-based electronic cigarette liquid is S EFFECT ,
a number of puffs of the water-based electronic cigarette liquid is n,
an atomization quantity corresponding to i-th puff of the water-based electronic cigarette liquid is S i ,
an average atomization quantity of the water-based electronic cigarette liquid per puff is S , and
above parameters satisfy

S
EFFECT

=

∑

i
=
1

n

⁢

(

S
i

-

S
_

Assignees

• China Tobacco Hunan Ind Co Ltd
• Shanghai New Tobacco Product Res Inst Co Ltd
• China Tobacco Henan Ind Co Ltd

Inventors

• Liu Jianfu
• Yi Jianhua
• Du Wen
• Huang Jiaruo
• Wang Zhiguo
• Tan Xinliang
• Zhong Kejun
• Sun Zhiwei
• Liu Wei
• Chen Jingbo
• Tan Chao
• Chen Chao
• Chen Chaoying
• Yang Jing
• Yuan Qishan
• Yin Xinqiang
• Guo Xiaoyi
• Ren Jianxin

Classifications

• A24B15/32

  by acyclic compounds · CPC title

• A24B15/302

  by natural substances obtained from animals or plants · CPC title

• A24B15/24

  by extraction; Tobacco extracts · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A24B15/167 Primary

  in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes · CPC title