Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2015/093334
Kind Code:
A1
Abstract:
An objective of the present invention is to avoid bristle breakage or bristle wear when a toothbrush is used repeatedly over an extended period. Provided is a toothbrush (1) which comprises a handle body (10) and a head part (20) which extends from the leading end of the handle body (10), and in which a plurality of staples (21) of a plurality of bristles (21a) is embedded in the head part (20). All or part of the plurality of bristles (21a) are formed from a polybutylene terephthalate filament. The filament has a zero shear viscosity at 240°C in a range of 200-300Pa∙s, and a rupture elongation per unit area of 2600% or less.
More Like This:
Inventors:
MATSUO HIROKO (JP)
Application Number:
PCT/JP2014/082405
Publication Date:
June 25, 2015
Filing Date:
December 08, 2014
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46D1/00; A46B9/04
Domestic Patent References:
| WO2001075200A1 | 2001-10-11 |
Foreign References:
| JP2011251110A | 2011-12-15 | |||
| JP2013240376A | 2013-12-05 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
Download PDF: