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:
Apr. 16, 2002
Filed:
Jul. 06, 2000
Applicant:
Inventor:
Michel Hendrikus Theelen, Westkapelle, NL;
Assignee:
Eastman Chemical Resins, Inc., Kingsport, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/00 ;
U.S. Cl.
CPC ...
C08F 8/00 ;
Abstract
Acid modified C hydrocarbon resins are disclosed. The resins are predominantly piperylene resins with isobutylene. The resins are acid modified with from about 0.1 to 30 weight percent maleic anhydride to provide an acid-modified resin with a acid number from about 30 to about 170 mg KOH/g resin. The acid-modified resins have a mettler drop softening point from about 40° C. to about 140° C. The acid modified resins are useful as a natural rosin alternative.