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WATER BASED ADHESION PROMOTOR FOR POLYPROPYLENE AND METHOD FOR COATING TO POLYPROPYLENE MATERIALS USING THE PROMOTOR
WATER BASED ADHESION PROMOTOR FOR POLYPROPYLENE AND METHOD FOR COATING TO POLYPROPYLENE MATERIALS USING THE PROMOTOR
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机译:聚丙烯的水基粘合促进剂和使用该促进剂涂覆聚丙烯材料的方法
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摘要
The water base adhesion promotor for polypropylene comprises: a grafted polypropylene chloride, which includes a polypropylene chloride moiety and a maleic anhydride moiety as bonded thereto, and which has a chlorine content of 15~25 weight % and a maleic anhydride moiety content of 1~5 weight %; an amine-neutralized water-soluble resin; a wettability-improving agent; and water; and is characterized by having: a combination ratio of 25~90 weight % as of the grafted polypropylene chloride to the total of the grafted polypropylene chloride and the amine-neutralized water-soluble resin; a combination ratio of 2.5~6.0 weight % as of the wettability-improving agent to the entirety of the promotor; and a solid content of 2~10 weight % of the entirety of the promotor. The method for coating to polypropylene materials comprises: a pretreatment step in which the polypropylene material is beforehand cleaned and then the above water base adhesion promotor is applied, and then dried; and a coating step in which a paint is coated to the material after the pretreatment step.
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