Sanyo Chemical Industries, Ltd.

Youji Fujiura

Keiji Tanaka

Takashi Sumiya

Kazuya Ohtani

Takeaki Yamaguchi

Megumu Sakakibara

A non-aqueous absorbent comprising a crosslinked polymer which contains a structural unit having a carboxyl group and/or a sulfonate group in an amount of 20 to 100% weight in its molecule and in which from 30 to 100% by mol of the protons in the carboxyl group and/or the sulfonate group have been substituted by onium cations; a non-aqueous gel made of this non-aqueous absorbent and an organic solvent; and a non-aqueous absorbent sheet and a non-aqueous absorbent agent containing the non-aqueous absorbent. Because of having excellent capabilities of absorbing and holding various organic solvents such as alcohols and gelating, these materials are usable for various purposes, for example, lithium batteries, alcohol-based bactericidal materials or alcohol-based bactericides, cold insulating materials or cold insulators, gel sheets for cooling, fuel compositions for solid fuels or solid fuels using the same, fragrance materials or fragrances, patch materials or patches, insecticidal compositions or insecticides, fuel stores for fuel batteries or fuel batteries using the same.

Non-aqueous absorbent and use thereof

Articles molded from a moisture shrinkable polymer are provided. The article are stretched. The moisture shrinkable polymer may comprise a graft copolymer, a block copolymer, or a blend of a thermoplastic polymer with a hydrophilic synthetic polymer or a polysaccharide. The article absorb moisture and shrink at room temperature of not more than 50.degree. C. in a highly humid atmosphere. The articles experience little decrease in tensile strength during shrinkage by moisture absorption or by prolonged storage after the moisture absorption. The article is useful when used as a film for shrink wrapping commodities which are not resistant to heat.

Growing community of inventors

Kyoto, Japan

Youji Fujiura