Title:
SPONGE ROLLER
Document Type and Number:
WIPO Patent Application WO/2021/246263
Kind Code:
A1
Abstract:
Provided is a sponge roller having high durability. The present invention is a sponge roller 1 comprising a shaft body 2 and a foamed elastic layer 3 formed on the outer circumference of the shaft body 2, wherein: the foamed elastic layer 3 is formed by foaming and vulcanizing a composition which is for a foamed elastic layer and contains a millable-type silicone rubber composition, a vinyl group-containing silicone crude rubber, a foaming agent, and a crosslinking agent; and the loss factor tanδ of a cured product of a rubber composition, which is obtained by removing the foaming agent from the composition for a foamed elastic layer, is at most 0.035 under the following measurement conditions. Frequency of 8 Hz, temperature of 100ºC, and strain control of 5 μm
Inventors:
OSHIBA HIDETAKA (JP)
Application Number:
PCT/JP2021/020036
Publication Date:
December 09, 2021
Filing Date:
May 26, 2021
Export Citation:
Assignee:
SHINETSU POLYMER CO (JP)
International Classes:
F16C13/00; C08L83/04; G03G15/00; G03G15/20
Foreign References:
| JP2008070574A | 2008-03-27 | |||
| JP2005300591A | 2005-10-27 |
Attorney, Agent or Firm:
SAKAMOTO & PARTNERS (JP)
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