| 摘要 |
1,043,572. Moulding foamed plastics. METZELER A.G. Feb. 5, 1964 [Feb. 19, 1963]. No. 4834/64. Heading B5A. In the production of spongy plastic articles of di-isocyanate poly-addition products which contain either polyether or polyester as an additional main constituent, a mixture of aqueous solutions of surface-active substances and inorganic salts is used as a mould release agent. Suitable surface-active substances are sodium salts of sulphuric acid esters of saturated fatty alcohols and/or salts of condensates of fatty acids and taurine or N-methyl-taurine. Suitable inorganic salts are sodium sulphate, sodium chloride and sodium nitrate separately or in mixture. |
