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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.:

US 10508176 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Jan. 18, 2018

Foamable resin composition for foam sheet, foam sheet, process for preparing particulate polylactic acid and process for preparing foam sheet

Applicant:

Lg Hausys, Ltd., Seoul, KR;

Inventors:

Jun-Beom Shin, Suwon-si, KR;

Sung-Yong Kang, Anyang-si, KR;

Min-Hee Lee, Gunpo-si, KR;

Hea-Won Kwon, Seoul, KR;

Kyoung-Min Kang, Seoul, KR;

Assignee:

LG HAUSYS, LTD., Seoul, KR;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Gregory Listvoyb

Int. Cl.
CPC ...
C08J 3/12 (2006.01); B29C 48/00 (2019.01); B01J 2/02 (2006.01); B29B 9/10 (2006.01); B29C 44/50 (2006.01); C08J 5/18 (2006.01); B29B 9/12 (2006.01); B29C 48/30 (2019.01); B29C 48/305 (2019.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B05B 5/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/12 (2013.01); B01J 2/02 (2013.01); B29B 9/10 (2013.01); B29B 9/12 (2013.01); B29C 44/505 (2016.11); B29C 48/0012 (2019.02); B29C 48/0021 (2019.02); C08J 3/122 (2013.01); C08J 5/18 (2013.01); B05B 5/001 (2013.01); B29C 48/30 (2019.02); B29C 48/305 (2019.02); B29K 2067/046 (2013.01); B29K 2105/251 (2013.01); C08J 2367/04 (2013.01);
Abstract

Disclosed herein is a foamable resin composition for a foam sheet including polylactic acid resin particles, each of the particles having a particle size of about 1 μm to about 100 μm. A process for preparing a particulate polylactic acid resin includes: introducing a polylactic acid resin and then forming a molten polylactic acid spray solution; and injecting the molten polylactic acid spray solution by a melt spray method and simultaneously cooling the molten polylactic acid spray solution to obtain a particulate polylactic acid. In addition, disclosed herein is a process for preparing a foam sheet using the foamable resin composition for a foam sheet including a polylactic acid resin.

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