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:
Jan. 09, 2018
Filed:
Jul. 13, 2015
Applicant:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Inventors:
Assignee:
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 53/02 (2006.01); C08L 95/00 (2006.01);
U.S. Cl.
CPC ...
C08L 53/02 (2013.01); C08L 95/00 (2013.01); C08L 95/005 (2013.01); C08L 2205/02 (2013.01); C08L 2555/22 (2013.01);
Abstract
One aspect of the present invention provides an additive composition for polymer-modified asphalt including a block copolymer having a radial structure and a copolymer of an aromatic vinyl compound of which two ends have different molecular weights and a conjugated diene compound, and a method of preparing the same. When asphalt is prepared using the additive composition for polymer-modified asphalt, properties of the existing polymer-modified asphalt may be maintained while content of sulfur may be reduced, viscosity may decrease, and thereby processability and pavement performance may be improved.