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:
Mar. 21, 2017
Filed:
Nov. 28, 2014
Hanil E-hwa Co., Ltd., Seoul, KR;
Ki-Sung Kim, Asan-si, KR;
Sung-Ho Park, Asan-si, KR;
HANIL E-HWA CO., LTD., Seoul, KR;
Abstract
A lightweight, multi-layered composite substrate for a vehicle interior material and a method for manufacturing the same are disclosed. A method for manufacturing a lightweight, multi-layered composite substrate including a core layer being a foam sheet and reinforcement layers stacked on both surfaces of the core layer includes preparing the foam sheet, forming each of the reinforcement layers by forming a low-density reinforcement sheet by mixing a natural fiber with a synthetic fiber by carding, subjecting the mixed natural fiber and synthetic fiber to cross wrapping and needle punching, coating polyolefin-based powder to a weight per unit area of 10 g/mto 100 g/mon the low-density reinforcement sheet, and pressing the low-density reinforcement sheet by a heat roller set to 150 to 230° C., and obtaining a multi-layered composite substrate by stacking the reinforcement layers on both surfaces of the foam sheet by heat.