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Antistaling process or concrete tile pipe of concrete, in the aqueous dispersion of pipe of concrete or concrete tile itself and polymer
Antistaling process or concrete tile pipe of concrete, in the aqueous dispersion of pipe of concrete or concrete tile itself and polymer
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机译：混凝土的保鲜工艺或混凝土瓦管，在混凝土或混凝土瓦本身与聚合物的管的水分散体中
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摘要
In the present invention, it is disclosed a kind of preserving method, pipe of concrete or concrete roof tile, it includes that at least one olefinic unsaturated acid and/or its conjugated polymers are converted to wherein in free radical polymerization form that wherein method, which includes each mineral products of coated surfaces the polymer that there is aqueous mixture to contain aqueous polymer dispersion whose dispersion, wherein the aqueous polymer dispersion of polymer P includes at least one monomer of general formula I, the symbol and substituent group therein have following meanings: n is 0 to 2, Re1, Re2, RE3 represents hydrogen or methyl independently of one another, X, which represents oxygen or imino group (NH) and Y, indicates hydrogen, alkali metal or ammonia, wherein aqueous mixture is from cement additive.
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