Melt processed antimicrobial composition

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United States of America Patent

PATENT NO 9832993
SERIAL NO

12961638

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
KIMBERLY-CLARK WORLDWIDE INC2300 WINCHESTER ROAD NEENAH WI 54956

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, YoungSook Yongin-si, KR 8 51
Lee, JaeHong Yongin-si, KR 46 117
Scholl, Neil T Neenah, US 61 443
Shi, Bo Neenah, US 132 871
Topolkaraev, Vasily A Appleton, US 122 1785
Wang, James H Appleton, US 98 2115

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