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. 23, 2021
Filed:
Mar. 04, 2019
Applicant:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Inventors:
Assignee:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/06 (2006.01); C08G 18/63 (2006.01); C08G 81/02 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 81/025 (2013.01); C08F 283/06 (2013.01); C08G 18/632 (2013.01); C08G 2101/00 (2013.01);
Abstract
Provided is a method of preparing a polymer polyol including steps of (a) respectively batchwise feeding a polyol and a monomer in a weight ratio of 40 to 60:40 to 60 into a reactor to prepare a mixture; and (b) polymerizing the mixture for 1 to 5 hours to prepare monodispersed particles.