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:
Feb. 05, 2013
Filed:
Dec. 24, 2009
Applicants:
Kwang Hee Kim, Seoul, KR;
Myung Dong Cho, Gyeonggi-do, KR;
Sang Ho Park, Yongin-si, KR;
Sung Woo Hwang, Daejeon, KR;
Inventors:
Kwang Hee Kim, Seoul, KR;
Myung Dong Cho, Gyeonggi-do, KR;
Sang Ho Park, Yongin-si, KR;
Sung Woo Hwang, Daejeon, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); C09K 3/00 (2006.01); C08G 18/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composition for a rigid polyurethane foam with reduced cell sizes contains a polyol, water, a catalyst, a blowing agent; and an ionic liquid. The rigid polyurethane foam is produced by adding an ionic liquid as an eco-friendly additive to a polyol composition so as to improve insulation efficiency thereof.