发明名称 METHOD FOR MAKING HEAT-INSULATIVE PAPER CONTAINERS AND THE PRODUCTS
摘要 A method for making heat-insulated paper containers and the products made by the same. The method includes steps of: (a) mixing and blending polyethylene terephthalate or polypropylene with an adhesive to form a polymer material; (b) heating and extruding the polymer material with an extruder machine to form a film and coating a surface of paper with the film; (c) cooling and laminating the paper with a laminating roller; (d) continuously coating another surface of the paper with a foam material; and then furling the paper after drying; and cutting the paper into a semi-product and then molding into a paper container; (e) heating the foam material with a heating device. The method can enhance the foam uniformity and the production rate, and decrease the defective rate.
申请公布号 US2011152049(A1) 申请公布日期 2011.06.23
申请号 US200813059939 申请日期 2008.10.23
申请人 发明人 CHANG CHING-WEN
分类号 B32B37/14 主分类号 B32B37/14
代理机构 代理人
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