Title:
積層成形体及びその製造方法
Document Type and Number:
Japanese Patent JP7220067
Kind Code:
B2
Abstract:
To provide a laminate molded body having excellent shape retention property in an MD direction, a TD direction and an optional direction, a light weight, and excellent in mechanical strength such as tensile strength and flexure elastic modulus.SOLUTION: There is provided a laminate molded body in which a surface sheet 2 is laminated on both surfaces of a center material 1 in which an unfoamed olefin resin layer 12 is laminated on both surfaces of an olefin resin foam layer 11 with expansion ratio of 10 times or less, in which the surface sheet 2 consists of at least two layer shape retention sheet and shape retention sheets 21 and 22 are expanded olefin resin sheets, and in which it is turned at 180 degree in a right direction (TD direction) to an extension direction (MD direction) and held for 1 min., released, and kept for 5 min., and at that time, a flexure return angle is 20 degree or less and extension directions of neighboring laminated shape retention sheets are different.SELECTED DRAWING: Figure 1
Inventors:
Tomoyuki Hishida
Junto Tadokoro
Junto Tadokoro
Application Number:
JP2018228576A
Publication Date:
February 09, 2023
Filing Date:
December 05, 2018
Export Citation:
Assignee:
Sekisui Mold Co., Ltd.
International Classes:
B32B27/32; B29C44/00; B29C55/06; B32B5/18; C08J9/04
Domestic Patent References:
| JP2009153701A | ||||
| JP2009155755A | ||||
| JP2001293829A | ||||
| JP2005290329A |
Foreign References:
| WO2016042798A1 | ||||
| EP0750973A2 | ||||
| US6090479 |
Attorney, Agent or Firm:
Ryu Iwatani