Title:
METHOD FOR VULCANIZING TIRE RUBBER COMPOSITION AND METHOD FOR PRODUCING RETREAD TIRE
Document Type and Number:
WIPO Patent Application WO/2024/024487
Kind Code:
A1
Abstract:
Provided is a method for vulcanizing a tire rubber composition that is capable of vulcanizing a tire rubber composition uniformly by microwave irradiation and intends to improve rubber strength. A method for vulcanizing a tire rubber composition that vulcanizes a tire rubber composition by microwave irradiation, wherein the method for vulcanizing a tire rubber composition is characterized in that the tire rubber composition contains a diene rubber and carbon black, the carbon black includes carbon black A having a nitrogen adsorption specific surface area of 50 m2/g or more, and the frequency of the microwaves with which the tire rubber composition is irradiated is varied by a frequency equal to a frequency variation width selected from a range of more than 0 Hz to 1000 Hz every time a time interval selected from a range of more than 0 μsec to 100 μsec elapses during vulcanization.
Inventors:
TAKIZAWA TOSHIKI (JP)
ISHIHARA NOBUYUKI (JP)
ISHIHARA NOBUYUKI (JP)
Application Number:
PCT/JP2023/025495
Publication Date:
February 01, 2024
Filing Date:
July 10, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08J3/28; B29D30/54; C08J3/24
Foreign References:
| JP2021195544A | 2021-12-27 | |||
| US5721286A | 1998-02-24 | |||
| JPS5345387A | 1978-04-24 | |||
| JP2021195543A | 2021-12-27 | |||
| JP2022097891A | 2022-07-01 | |||
| JPS6134368B2 | 1986-08-07 | |||
| US20100090373A1 | 2010-04-15 |
Other References:
山崎朋三 他, カーボンブラック, エアロゾル研究, 20 March 1990, vol. 5, no. 1, p. 15-23 non-official translation (YAMAZAKI, Hozo et al. Carbon Black. Aerosol Research.)
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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