IP Library Granted Patent US 11,155,700
Granted Patent B2
US 11,155,700 · App. 16/606,054 · Granted Oct 26, 2021

Tire puncture sealant

Inventor: Kiyohito Takahashi (Hiratsuka, JP)
Assignee: The Yokohama Rubber Co., Ltd.
C08L7/02B29C73/02C08K7/02C08K2201/003C08L1/10
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Quick Facts
Patent No.
US 11,155,700
App. No.
16/606,054
Granted
Oct 26, 2021
Kind
B2
Abstract

The object of the present invention is to provide a tire puncture sealant having excellent sealing property, storage property, and injection property. The tire puncture sealant of the present invention contains a rubber latex and/or a resin emulsion and a cellulose fiber having a maximum fiber diameter of less than 1,000 nm, the cellulose fiber containing cellulose that optionally has a functional group.

Claims (20)

1. A tire puncture sealant comprising: a rubber latex and/or a resin emulsion; and a cellulose fiber having a maximum fiber diameter of less than 1000 nm, the cellulose fiber containing cellulose that optionally has a functional group.

2. The tire puncture sealant according to claim 1 , wherein the cellulose fiber has a number average fiber diameter from 2 to 150 nm.

3. The tire puncture sealant according to claim 1 , wherein the cellulose fiber is contained in a content from 0.01 to 5.0 parts by mass, based on 100 parts by mass of a content 1 of solid matter in the rubber latex, or 100 parts by mass of a content 2 of solid matter in the resin emulsion.

4. The tire puncture sealant according to claim 1 , wherein the cellulose fiber has a maximum fiber diameter of 500 nm or less, and a number average fiber diameter from 2 to 100 nm.

5. The tire puncture sealant according to claim 1 , wherein the cellulose fiber has a maximum fiber diameter of 30 nm or less, and a number average fiber diameter from 2 to 20 nm.

6. The tire puncture sealant according to claim 1 , wherein the functional group is at least one selected from the group consisting of a carbonyl group and an alkoxy group.

7. The tire puncture sealant according to claim 1 , wherein the cellulose fiber contains cellulose having a functional group, and the functional group is contained in a content from 0.1 to 2.2 mmol/g relative to the cellulose fiber.

8. The tire puncture sealant according to claim 1 , wherein the cellulose fiber is dispersed in a medium of the tire puncture sealant.

9. The tire puncture sealant according to claim 1 , comprising the rubber latex and the resin emulsion, wherein the cellulose fiber is contained in a content from 0.01 to 10.0 parts by mass, based on 100 parts by mass of a total amount of the content 1 of the solid matter in the rubber latex and the content 2 of the solid matter in the resin emulsion.

10. The tire puncture sealant according to claim 2 , wherein the cellulose fiber is contained in a content from 0.01 to 5.0 parts by mass, based on 100 parts by mass of a content 1 of solid matter in the rubber latex, or 100 parts by mass of a content 2 of solid matter in the resin emulsion.

11. The tire puncture sealant according to claim 2 , wherein the cellulose fiber has a maximum fiber diameter of 500 nm or less, and a number average fiber diameter from 2 to 100 nm.

12. The tire puncture sealant according to claim 2 , wherein the cellulose fiber has a maximum fiber diameter of 30 nm or less, and a number average fiber diameter from 2 to 20 nm.

13. The tire puncture sealant according to claim 2 , wherein the functional group is at least one selected from the group consisting of a carbonyl group and an alkoxy group.

14. The tire puncture sealant according to claim 2 , wherein the cellulose fiber contains cellulose having a functional group, and the functional group is contained in a content from 0.1 to 2.2 mmol/g relative to the cellulose fiber.

15. The tire puncture sealant according to claim 2 , wherein the cellulose fiber is dispersed in a medium of the tire puncture sealant.

16. The tire puncture sealant according to claim 2 , comprising the rubber latex and the resin emulsion, wherein the cellulose fiber is contained in a content from 0.01 to 10.0 parts by mass, based on 100 parts by mass of a total amount of the content 1 of the solid matter in the rubber latex and the content 2 of the solid matter in the resin emulsion.

17. The tire puncture sealant according to claim 3 , wherein the cellulose fiber has a maximum fiber diameter of 500 nm or less, and a number average fiber diameter from 2 to 100 nm.

18. The tire puncture sealant according to claim 3 , wherein the cellulose fiber has a maximum fiber diameter of 30 nm or less, and a number average fiber diameter from 2 to 20 nm.

19. The tire puncture sealant according to claim 3 , wherein the functional group is at least one selected from the group consisting of a carbonyl group and an alkoxy group.

20. The tire puncture sealant according to claim 3 , wherein the cellulose fiber contains cellulose having a functional group, and the functional group is contained in a content from 0.1 to 2.2 mmol/g relative to the cellulose fiber.

Assignments (2)
CHANGE OF ADDRESS FOR ASSIGNEE Recorded Nov 18, 2023
From: THE YOKOHAMA RUBBER CO., LTD.
To: THE YOKOHAMA RUBBER CO., LTD.
Reel/Frame 065626/0740 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2019
From: TAKAHASHI, KIYOHITO
To: THE YOKOHAMA RUBBER CO., LTD.
Reel/Frame 050751/0159 →
Priority Claims (1)
JP JP2017-082054 · Apr 18, 2017 · national
Continuity (1)
Related Publication 20200040164A1 · Feb 6, 2020