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:
Apr. 30, 2013
Filed:
Nov. 25, 2009
Thomas Ahlnäs, Kotka, FI;
Thomas Ahlnäs, Kotka, FI;
Oy Granula AB Ltd., Kotka, FI;
Abstract
A composition having antimicrobial activity is provided. The composition includes a compound mixture obtained from pulverized and/or extracted wood material that contains polyphenols (i) lignans, (ii) stilbenes and (iii) oligomers of lignans, stilbenes juvabiones or flavonoids. The cytotoxicity of the polyphenols in the compound mixture is at least ten times lower compared to butylated hydroxytoluene (BHT) and does not irritate the skin in a so-called single patch test at 0.1 wt %. The composition further includes an antimicrobial agent such as betulin, betulonic acid, betulinic acid, betuloinic acid, resveratrol or ethylhexyl glyceryl. The composition can be used in cosmetic and hair care products.