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:
Aug. 08, 1989
Filed:
Apr. 07, 1987
Yasuyuki Imaizumi, Tokyo, JP;
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Abstract
A synthetic resin sheet integrally coextruded by coextruding sheet main body portions and a slender notching strip interposed between right and left side sheet main body portions, wherein the notching strip is formed of a mixture resin material of a first synthetic resin material of molding material of the sheet main body portions, a second synthetic resin material impossible to be bonded with the first synthetic resin material, a third synthetic resin material possible to be bonded with the first and second synthetic resin materials, and a fourth synthetic resin material for softening the molded notching strip, melt index value of the notching strip is the same as or substantially lower than that of the main body portions, and the softening temperature of the notching strip is the same as or substantially higher than that of the sheet main body portions, and a thermally molded container formed of the sheet, thereby smoothly and clearly separating the sheet main body portions and the notching strip of the sheet.