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:
Mar. 16, 2004
Filed:
Aug. 29, 2000
Scott Ellery George, Kingsport, TN (US);
Coralie McKenna Fleenor, Rogersville, TN (US);
David T. Bowers, Kingsport, TN (US);
Richard Anthony Miller, Kingsport, TN (US);
Ricky Thompson, Piney Flats, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
The present invention provides an article of manufacture having a coating or is otherwise surrounded in large measure by a second polymer which has non-blocking characteristics. In a preferred embodiment, the article possesses a core polymer which has a T of less than 25° C. which is coated with or otherwise surrounded by a second polymer which has a T of greater than 25° C., but less than 230° C. Further, preferred core polymers have a number average molecular weight of about 3000 to about 100,000. A further feature of the articles of the present invention is that when heated to temperatures of about 100 to 300° C., they undergo an ester exchange reaction to provide a substantially homogeneous polymer product useful in hot melt adhesive applications.