Title:
GASKET FOR ALKALINE DRY BATTERY, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/185971
Kind Code:
A1
Abstract:
Provided are: an alkaline battery gasket that does not give rise to liquid leakage caused by carbides of a polyamide resin material, has excellent flowability at the time of molding and is less likely to cause flow lines, and is capable of enhancing longevity with which a thin part serving as an explosion-proof safety valve functions normally without rupturing before the life of the alkaline dry battery expires; and a method for producing the gasket. This gasket for an alkaline dry battery is formed by injection molding using a resin composition, and includes a thin part in a portion thereof, wherein: the resin composition is a polyamide 610 resin composition that includes a polyamide 610 resin as a main component, said polyamide 610 resin having a viscosity number ranging from 80 ml/g to 145 ml/g, and the polyamide 610 resin composition includes molding aids such as a crystal nucleating agent and a release agent.
Inventors:
MIYATA YOICHI (JP)
HORII MINORU (JP)
HACHIKEN HIDEYUKI (JP)
HORII MINORU (JP)
HACHIKEN HIDEYUKI (JP)
Application Number:
PCT/JP2017/042010
Publication Date:
October 11, 2018
Filing Date:
November 22, 2017
Export Citation:
Assignee:
SHINSEI KAGAKU KOGYO CO LTD (JP)
International Classes:
H01M50/184; H01M50/193; H01M50/198
Foreign References:
| JP2008280514A | 2008-11-20 | |||
| JP2009032639A | 2009-02-12 | |||
| JP2013527864A | 2013-07-04 | |||
| JP2015026477A | 2015-02-05 | |||
| JP2009215514A | 2009-09-24 | |||
| JP2009263503A | 2009-11-12 | |||
| JP2001351586A | 2001-12-21 | |||
| JP2015026477A | 2015-02-05 | |||
| JP5659180B2 | 2015-01-28 |
Other References:
See also references of EP 3413372A4
Attorney, Agent or Firm:
MIYAZAKI Eiji et al. (JP)
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