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. 19, 2013
Filed:
Aug. 05, 2010
Kyung-gu Nam, Daejeon, KR;
Ki-deog Choi, Daejeon, KR;
Jong-sung Park, Daejeon, KR;
Seon-mo Son, Daejeon, KR;
Bong-keun Lee, Daejeon, KR;
Kyung-jip Min, Seoul, KR;
Kyung-Gu Nam, Daejeon, KR;
Ki-Deog Choi, Daejeon, KR;
Jong-Sung Park, Daejeon, KR;
Seon-Mo Son, Daejeon, KR;
Bong-Keun Lee, Daejeon, KR;
Kyung-Jip Min, Seoul, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to a microcellular foam of a thermoplastic resin and a method for preparing the same, and more particularly to a microcellular foam comprising a skin layer having a porosity of below 5% and a core layer having a porosity of at least 5%, wherein the thickness of the skin layer accounts for 5 to 50% of the entire foam, and a method for preparing the same. The microcellular foam of the present invention is advantageous in that it has a thicker skin layer and smaller and uniform micropores in the core layer, compared with conventional microcellular foams, while having mechanical properties comparable to those of conventional non-foamed sheets.