Title:
【考案の名称】冷却袋
Document Type and Number:
Japanese Patent JPH0726671
Kind Code:
U
Abstract:
Endothermic reaction (dissolution) of endothermic material to be packed in a cooling bag is retarded to avoid a large temperature gradient which results in a meaningless intake of ambient heat quantity and an excessively low temperature condition, so as to keep an adequately cooled condition for a long period of time. Column-like or tablet-like endothermic materials are prepared from granular starting materials to decrease their specific surface area and solution velocity in water. The products, either as they are alone, together with water absorbing resins and/or their granular starting endothermic materials, or as a stored state in a perforated inner bag, are packed in a bag made of synthetic resin film.
Inventors:
Abe Torumatsu
Application Number:
JP6055293U
Publication Date:
May 19, 1995
Filing Date:
October 05, 1993
Export Citation:
Assignee:
Nichiwa Co., Ltd.
International Classes:
A61F7/10; C09K5/06; F25D5/00; (IPC1-7): F25D5/00; A61F7/10; C09K5/06
Attorney, Agent or Firm:
Minoru Tsurusaki