Title:
METHOD FOR VULCANIZING TIRE RUBBER LAMINATE, AND METHOD FOR MANUFACTURING RETREADED TIRE
Document Type and Number:
WIPO Patent Application WO/2024/024486
Kind Code:
A1
Abstract:
Provided is a method for vulcanizing a tire rubber laminate whereby it is possible to uniformly vulcanize, by microwave irradiation, a tire rubber laminate in which an unvulcanized rubber layer and a vulcanized rubber layer are laminated. This method for vulcanizing a tire rubber laminate vulcanizes, by microwave irradiation, a tire rubber laminate in which an unvulcanized rubber layer and a vulcanized rubber layer are laminated, the method characterized in that the unvulcanized rubber layer contains diene-based rubber and carbon black, the vulcanized rubber layer contains diene-based rubber and carbon block, and a step is included for changing, during vulcanization, the frequency of the microwaves with which the tire rubber laminate is irradiated by a frequency change width selected from the range of greater than 0 Hz but less than or equal to 1000 Hz with each passing of a time interval selected from the range of greater than 0 μsec but less than or equal to 100 μsec, within a prescribed frequency range.
Inventors:
TAKIZAWA TOSHIKI (JP)
ISHIHARA NOBUYUKI (JP)
ISHIHARA NOBUYUKI (JP)
Application Number:
PCT/JP2023/025493
Publication Date:
February 01, 2024
Filing Date:
July 10, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08J3/28; B29D30/56; C08J3/24
Foreign References:
| JPS5345387A | 1978-04-24 | |||
| US5721286A | 1998-02-24 | |||
| JP2021195544A | 2021-12-27 | |||
| JP2021195543A | 2021-12-27 | |||
| JPH06344510A | 1994-12-20 | |||
| JPS63295638A | 1988-12-02 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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