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. 10, 1976
Filed:
Sep. 19, 1972
Applicant:
Inventor:
Jan Laarkamp, Midden-Beemster, NL;
Assignee:
Stamicarbon N.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 106 28 ; 260 / ; 260 / ; 260 82 ; 260 931 ;
Abstract
Petroleum resin comprising units of cyclopentadiene, methyl cyclopentadiene or both is reacted at 150.degree.-320.degree.C with an unsaturated fatty acid, such as tall oil fatty acid, in the presence of magnesium oxide or other metal compound for a period of time until a modified resin having a melting point of at least 125.degree.C, preferably 140.degree.-160.degree.C is obtained. The resulting resins are especially useful as binding and thickening agents for printing ink resulting in an ink that dries rapidly and is resistant to rubbing.