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:
Nov. 06, 2012
Filed:
May. 23, 2006
Kevin Wayne Mccreight, Kingsport, TN (US);
Douglas Claire Hoffman, Yardley, PA (US);
Wesley Raymond Hale, Kingsport, TN (US);
Kevin Wayne McCreight, Kingsport, TN (US);
Douglas Claire Hoffman, Yardley, PA (US);
Wesley Raymond Hale, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
New compositions for forming films for use in optical devices are provided. The compositions comprise a cellulose and a crosslinking agent dissolved or dispersed in a solvent system. Preferred celluloses are cellulose esters such as cellulose acetates, cellulose triacetates, cellulose acetate phthalates, and cellulose acetate butyrates. Preferred crosslinking agents are triazines such as those derived from melamine and benzoguanamine. The inventive compositions can be used to form, for example, protective and/or compensation films for use in polarizing plates.