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:
Sep. 06, 2022
Filed:
Mar. 04, 2019
Applicant:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Inventors:
Gi Jung Kim, Pyeongtaek-si, KR;
Seul Gi Kim, Seongnam-si, KR;
Seung Moo Huh, Daejeon, KR;
Jin Woo Park, Daejeon, KR;
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD., Seoul, KR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/08 (2006.01); C08F 212/10 (2006.01); C08G 18/48 (2006.01); C08G 18/63 (2006.01); C08L 25/12 (2006.01); C08L 71/00 (2006.01); C08F 283/06 (2006.01);
U.S. Cl.
CPC ...
C08G 18/0876 (2013.01); C08F 212/10 (2013.01); C08G 18/0871 (2013.01); C08G 18/48 (2013.01); C08G 18/4829 (2013.01); C08G 18/632 (2013.01); C08L 25/12 (2013.01); C08L 71/00 (2013.01); C08L 2203/14 (2013.01);
Abstract
Provided is a method of preparing a polymer polyol, including steps of: (a) polymerizing a polyol and a monomer in presence of a diluent to prepare a primary particle dispersed liquid; and (b) feeding an additional polyol and monomer into the primary particle dispersed liquid and polymerizing to prepare a secondary particle dispersed liquid.