The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Oct. 23, 2008
Ching-wen Chang, Taichung, CN;
Ching-Wen Chang, Taichung, CN;
Rich Cup Bio-Chemical Technology Co., Ltd., Taichung, TW;
Abstract
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.