| 摘要 |
“The invention relates to a method for preparing a composite latex, including (a) a first step of free radical emulsion or microsuspension polymerization or copolymerization, leading to the production of a first polymer latex, and (b) a second step of free radical microsuspension, emulsion, or suspension polymerization or copolymerization in the presence of the first polymer latex obtained in the first step (a), characterized in that the first polymer forming the latex obtained in step (a) is a halogen-containing vinyl polymer and the polymer formed in step (b) is an associative copolymer, preferably compatible with the halogen-containing vinyl polymer, which contains units from a first monomer (A) and units from a second monomer (B) having at least one associative group; however the nature of both polymers are capable of being reversed. The invention also relates to a latex or polymer suspension obtained by said method and to a polymer composition obtained from the latter, as well as to the use of said latex, from said suspension or said polymer composition, for manufacturing rigid or plasticized materials.”
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