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:
Aug. 06, 2002
Filed:
Sep. 20, 2001
Yun-Shan Liu, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
There are disclosed novel homopolymers of 5-aryl-2-norbornene, and novel interpolymers of 5-aryl-2-norbornene with at least one other cyclic or acyclic alkene, and hydrogenated hydrocarbon resins resulting from hydrogenation of the homopolymers and interpolymers. The products are particularly useful as tackifiers. Also disclosed is a novel process for preparing the homopolymers and interpolymers of the 5-aryl-2-norbornene, wherein there is used as the polymerization catalyst, a Friedel-Crafts catalyst, such as aluminum chloride or boron trifluoride.
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