Invention Grant
- Patent Title: Stabilization of household, body-care and food products by using benzotropolone containing plant extracts and/or related benzotropolone derivatives
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Application No.: US14297950Application Date: 2014-06-06
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Publication No.: US09663442B2Publication Date: 2017-05-30
- Inventor: Barbara Winkler , Oliver Reich , Alexander Mantler , Reinhold Ohrlein , Walter Fischer , Albert Schneider
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: EP09172338 20091006; EP09175892 20091113
- Main IPC: A61K8/37
- IPC: A61K8/37 ; C07C69/757 ; C07D317/70 ; A61K8/49 ; C11D3/20 ; C11C5/00 ; C11D3/00 ; C11B5/00 ; C07C69/33 ; C07C49/755 ; A61Q1/10 ; A61Q19/00 ; A61Q5/06 ; A61Q5/08 ; A61Q1/06 ; A61Q3/02 ; A61Q1/02 ; A61Q5/02
Abstract:
Disclosed is the use of benzotropolone derivatives of formula wherein R1, R2 and R7 independently from each other are hydrogen; C1-C3alkyl; or COR8; R3 is hydrogen; or COOR9 R4 is hydrogen; or C1-C3alkyl; R5 is hydrogen; hydroxy; C1-C3-alkoxy; or —O—(CO)—R10; R6 is hydrogen; C1-C3alkyl; or COR8; or R5 and R6 together may form a five or six membered ring; or R6 and R7 together form a five or six membered ring; and R8, R9, R10 independently of each other are C1-C30alkyl; for protecting body-care and household products from photolytic and oxidative degradation.
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