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:
Jul. 05, 2016
Filed:
May. 16, 2011
Shimon Kanai, Ibaraki, JP;
Toshiyuki Zento, Ibaraki, JP;
Kohta Tomiyama, Ibaraki, JP;
Hiromichi Nakata, Ibaraki, JP;
Shimon Kanai, Ibaraki, JP;
Toshiyuki Zento, Ibaraki, JP;
Kohta Tomiyama, Ibaraki, JP;
Hiromichi Nakata, Ibaraki, JP;
KURARAY Co., Ltd., Kurashiki-shi, JP;
Abstract
A manufacturing method of a multi-laminated body according to the present invention includes a step 1 (L-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to opposite directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each other in the horizontal direction and thereby joining the laminated flows together, and a step 2 (R-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to directions opposite to the above-mentioned directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each other in the horizontal direction and thereby joining the laminated flows together, in which the step 1 (L-flow path) and the step 1 (R-flow path) are alternately repeated in this listed order, and a number of the steps to be performed is at least three. According to this method, it is possible to prevent the layer disappearance at both ends, prevent the layer thickness variations or the disruption in the lengthwise arrangement, and thereby manufacture a multi-laminated body having a more excellent uniformity.