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:
Oct. 07, 2014
Filed:
Dec. 18, 2006
Linfu Wang, Blacksburg, VA (US);
Henry P. Stogner, Bluefield, WV (US);
Billy C. Batson, Pearisburg, VA (US);
Linfu Wang, Blacksburg, VA (US);
Henry P. Stogner, Bluefield, WV (US);
Billy C. Batson, Pearisburg, VA (US);
Celanese Acetate LLC, Dallas, TX (US);
Abstract
Starch esters are made by: reacting a starch with an esterifying agent in the presence of a catalyst in a solvent for the starch ester, the esterifying agent including a mixture of at least two esterifying agents; or pre-treating a starch in a bath being free of an esterifying agent, and reacting the pre-treated starch with an esterifying agent in the presence of a catalyst. Articles are made by blending cellulose ester and starch ester, may be cross-linked, and may include internal plasticizers.