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发明公开
CN101649015A 医药包装用偏二氯乙烯共聚胶乳及其制备方法和应用 有权 转让

医药包装用偏二氯乙烯共聚胶乳及其制备方法和应用
摘要：
本发明涉及医药包装用胶乳，尤其涉及一种水性医药包装用聚偏二氯乙烯(PVDC)共聚胶乳及其制备方法。医药包装用偏二氯乙烯共聚胶乳，该胶乳由混合单体、乳化剂、引发剂、pH调节剂、助剂、纳米材料共聚而成，其中按混合单体总重量的百分比计由以下的组份组成：偏二氯乙烯70％～96％、丙烯酸酯类单体3％～25％、丙烯腈2％～5％；乳化剂、引发剂、PH调节剂、助剂和纳米材料分别占乳胶总重量的百分比如下：不饱和脂肪酸0.5％～5％、乳化剂0.5％～2％、引发剂0.02％～0.2％、pH调节剂0.005％～0.02％、助剂0.002％～0.01％、纳米材料0.003％～0.02％。本发明所制得医药包装用聚偏二氯乙烯共聚胶乳的具有胶乳粘度低，柔软性好，阻隔性高，没有晶点的特点。
摘要（英）：

The invention relates to latex for medicine packaging, in particular to polyvinylidene chloride (PVDC) copolymer latex for aqueous medicine packaging and a preparation method thereof. The polyvinylidene chloride (PVDC) copolymer latex for the medicine packaging is prepared by copolymerizing a mixed monomer, an emulsifier, an initiator, a pH modifier, an auxiliary agent and nanometer materials, wherein the polyvinylidene chloride (PVDC) copolymer latex comprises the following components by the total weight percent of the mixed monomer: 70-96 percent of vinylidene chloride, 3-25 percent of acrylate monomer and 2-5 percent of acrylonitrile; and the weight percentage of the emulsifier, the initiator, the pH modifier, the auxiliary agent and the nanometer materials is as follows respectively accounting for the total weight of the latex: 0.5-5 percent of unsaturated aliphatic acid, 0.5-2 percent of the emulsifier, 0.02-0.2 percent of the initiator, 0.005-0.02 percent of the pH modifier, 0.002-0.01 percent of the auxiliary agent and 0.003-0.02 percent of the nanometer materials. The polyvinylidene chloride (PVDC) copolymer latex for the medicine packaging has low latex viscosity, good softness, high barrier property and no crystallization point.

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