Title:
COLD-STORAGE MATERIAL WITH EXCELLENT SHAPE STABILITY AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2000/052112
Kind Code:
A1
Abstract:
A cold-storage material with excellent shape stability which is obtained by freezing a composition comprising: 100 parts by weight of a highly water-absorbing resin in which water has been absorbed in an amount of 40 to 150 times by weight the amount of the highly water-absorbing resin on a dry basis; and at least 25 parts by weight of an aqueous polyvinyl alcohol solution having a concentration of 10 wt.% or higher. The process comprises causing a highly water-absorbing resin to absorb water in an amount of 40 to 150 times by weight the amount of the highly water-absorbing resin on a dry basis, separately preparing an aqueous polyvinyl alcohol solution having a concentration of 10 wt.% or higher, subsequently mixing the water-absorbing resin containing water absorbed therein with the aqueous solution to produce a composition for a cold-storage material, and then freezing the resultant composition.
Inventors:
WATANABE KATSUYOSHI (JP)
SATO SEIO (JP)
SATO SEIO (JP)
Application Number:
PCT/JP2000/001445
Publication Date:
September 08, 2000
Filing Date:
March 10, 2000
Export Citation:
Assignee:
TOYO EIZAI KK (JP)
WATANABE KATSUYOSHI (JP)
SATO SEIO (JP)
WATANABE KATSUYOSHI (JP)
SATO SEIO (JP)
International Classes:
C09K5/06; (IPC1-7): C09K5/14
Foreign References:
JPH07124461A | 1995-05-16 | |||
JPH05239449A | 1993-09-17 | |||
JPH04100887A | 1992-04-02 | |||
JPH0489887A | 1992-03-24 | |||
JPH02252788A | 1990-10-11 | |||
JPH01270867A | 1989-10-30 | |||
JPH02132643U | 1990-11-05 | |||
JPH0586361A | 1993-04-06 | |||
JPH0280489A | 1990-03-20 |
Attorney, Agent or Firm:
Kotani, Etsuji (Nakanoshima 2-chome Kita-ku Osaka-shi, Osaka, JP)
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