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:
Dec. 05, 2017
Filed:
Dec. 07, 2010
James H. Wang, Appleton, WI (US);
BO Shi, Neenah, WI (US);
Jaehong Lee, Yongin-si, KR;
Vasily A. Topolkaraev, Appleton, WI (US);
Neil T. Scholl, Neenah, WI (US);
Youngsook Kim, Yongin-si, KR;
James H. Wang, Appleton, WI (US);
Bo Shi, Neenah, WI (US);
JaeHong Lee, Yongin-si, KR;
Vasily A. Topolkaraev, Appleton, WI (US);
Neil T. Scholl, Neenah, WI (US);
YoungSook Kim, Yongin-si, KR;
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A method for forming a composition that includes mixing an antimicrobially active botanical oil (e.g., thymol, carvacrol, etc.) and a modified starch polymer within a melt blending device (e.g., extruder) is provided. Unlike the problems associated with proteins, the use of starch polymers allows for a greater degree of flexibility in the processing conditions and is still able to achieve good properties in the resulting composition. The present inventors have also discovered that a plasticizer may be employed to facilitate melt processing of the starch, as well as to enhance the ability of the botanical oil to flow into the internal structure of the starch where it can be retained in a stable manner. The composition is also typically generally free of solvents. In this manner, the starch will not generally disperse before use and prematurely release the botanical oil. Due to the water sensitivity of the modified starch, however, it may be subsequently dispersed by moisture when it is desired to release the botanical oil.