| 摘要 |
A vinyl chloride-based polymeric resin having outstandingly high thermal stability is obtained by the suspension polymerization of vinyl chloride monomer, optionally, in combination with a comonomer in an aqueous polymerization medium to which a specific di- or tetraglycidyl compound such as diglycidyl hexadhydroisophthalate and 1,3-bis(N,N-diglycidylaminomethyl) cyclohexane is added. The improvement obtained by this method is so remarkable that substantial improvements can be obtained in the thermal stability of the resin even when vinyl chloride is copolymerized with a comonomer having at least two ethylenically unsaturated linkages in a molecule, e.g., diallyl phthalate and 1,6-hexane diol diacrylate, with an object to obtain a resin from which shaped resin articles having mattness in appearance can be prepared.
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