| 摘要 |
<p>PCT No. PCT/GB93/02435 Sec. 371 Date May 30, 1995 Sec. 102(e) Date May 30, 1995 PCT Filed Nov. 25, 1993 PCT Pub. No. WO94/13753 PCT Pub. Date Jun. 23, 1994The present invention provides a composition for providing a supply of water-based cool mixture, the temperature of which when utilised is lower than the ambient temperature and higher than the freezing point of water, which composition consists essentially of a mixture of water and a chemical compound selected from one or more of dimethyl ether, a homologue of dimethyl ether and a chemical derivative of dimethyl ether. The present invention also provides apparatus for providing a supply of water-based cool mixture, the temperature of which when utilised is lower than the ambient temperature and higher than the freezing point of water, which apparatus comprises a pressurized dispensing container, said container containing such a composition. The present invention further provides a method of cooling, e.g. of the body, a space, a surface, or a water based liquid by utilising such a composition or such an apparatus.</p> |
