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:
Jun. 11, 2002
Filed:
Oct. 07, 1998
Idemitsu Petrochemical Co., Ltd., Tokyo, JP;
Abstract
A method of manufacturing a laminated thermoplastic resin sheet having an improved transparency without generating a wrinkle and an apparatus therefor are provided. The laminated thermoplastic resin sheet is manufactured by using an apparatus including an endless belt wound between a first cooling roll having an elastic material, a second cooling roll and a third cooling roll brought into contact with the first cooling roll through the belt, arranging a guide roll near the first roll so as to introduce a molten thermoplastic resin sheet between the first and third cooling rolls in such a manner as to be brought into contact with the belt and the third cooling roll substantially at the same time, and introducing a thermoplastic resin film between the belt and the third cooling roll via the guide roll.