Title:
INTERDENTAL BRUSH
Document Type and Number:
WIPO Patent Application WO/2022/138817
Kind Code:
A1
Abstract:
An interdental brush (100) includes a handle portion (13) and a cleaning portion (12), wherein: the cleaning portion (12) includes a shaft portion extending from the handle portion (13), and at least two projecting pieces projecting from the circumferential surface of the shaft portion; the shaft portion includes a synthetic resin (A) having a weight-average molecular weight not less than 250,000, and a synthetic resin (B) having a weight-average molecular weight of more than 250,000 and not more than 450,000; and at least one of the synthetic resin (A) and the synthetic resin (B) includes a synthetic resin having a long-chain branched structure.
Inventors:
MIYAZAWA AYA (JP)
ONO YOSHITAKA (JP)
OKAMOTO IWAO (JP)
NISHIYAMA KOHEI (JP)
ONO YOSHITAKA (JP)
OKAMOTO IWAO (JP)
NISHIYAMA KOHEI (JP)
Application Number:
PCT/JP2021/047855
Publication Date:
June 30, 2022
Filing Date:
December 23, 2021
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B1/00; A46B5/00; A61C15/02
Foreign References:
| JP2019111287A | 2019-07-11 | |||
| JP2019118798A | 2019-07-22 | |||
| JP2017109018A | 2017-06-22 | |||
| JP2020074818A | 2020-05-21 | |||
| JP2018068515A | 2018-05-10 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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