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:
Jul. 11, 1989
Filed:
Jan. 28, 1988
Applicant:
Inventors:
Masao Maeda, Nishinomiya, JP;
Yoshihiro Kodama, Kobe, JP;
Assignee:
Arakawa Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09F / ;
U.S. Cl.
CPC ...
530216 ;
Abstract
A process for preparing a rosin ester which comprises purifying a rosin and/or a disproportionated rosin, esterifying the resulting purified rosin and/or purified disproportionated rosin with an alcohol and subjecting the esterified rosin and/or esterified disproportionated rosin to hydrogenating. The resulting rosin ester has superior color nearly equal to colorless and is excellent in various properties such as odor at heating, stability and compatibility with organic polymers.