| 摘要 |
PCT No. PCT/GB91/00483 Sec. 371 Date Nov. 30, 1992 Sec. 102(e) Date Nov. 30, 1992 PCT Filed Mar. 28, 1991 PCT Pub. No. WO91/15520 PCT Pub. Date Oct. 17, 1991.Residual levels of monomeric ethylenically unsaturated carboxylic acid esters such as alkyl acrylate and methacrylates, especially ethyl, butyl and "iso-hexyl" acrylates and methacrylates, in surfactant stabilised dispersions of polymers of the monomer(s) such as latices or products formulated from latices, are reduced by treatment with a hydrolytic enzyme, particularly a lipase or esterase. The treatment reduces and can obviate the perceived bad odour of the dispersions arising from the presence of the monomers.
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