Hydroxybenzophenone derivatives

Details Hydroxybenzophenone derivatives Hydroxybenzophenone derivatives

2011-08-16

2011-08-16

Katakam, Sudhakar (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S400000, C556S465000, C556S466000

Reexamination Certificate

active

07999128

ABSTRACT:
Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein R1and R2independently from each other are hydrogen; C1-C20alkenyl; C3-C10cycloalkyl; or R1and R2together with the linking nitrogen atom form a 5- 6-membered heterocyclic ring; R3, R4and R5independently from each other are C1-C4alkyl; C1-C4alkoxy; or a radical of formula (1a) R6is C1-C6alkyl; and A is a straight-chain or branched C3-C6alkylene, which is optionally interrupted by one or more *—O—*, or *—O—(CO)—* groups; and m is 0; or a number from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.

REFERENCES:
patent: 2938047 (1960-05-01), Black
patent: 4042613 (1977-08-01), Takamizawa et al.
patent: 4495360 (1985-01-01), Anthony
patent: 5270426 (1993-12-01), Sakuta et al.
patent: 5756793 (1998-05-01), Valet et al.
patent: 6071052 (2000-06-01), Kerr
patent: 6409995 (2002-06-01), Habeck et al.
patent: 7388102 (2008-06-01), Berg-Schultz et al.
patent: 2002/0001570 (2002-01-01), Heidenfelder et al.
patent: 2003/0152598 (2003-08-01), Heidenfelder et al.
patent: 2005/0008587 (2005-01-01), Schulz et al.
patent: 2005/0255066 (2005-11-01), Berg-Schultz et al.
patent: 2006/0018846 (2006-01-01), Haase et al.
patent: 10011317 (2001-09-01), None
patent: 93/10745 (1993-06-01), None
patent: 2006/128614 (2006-12-01), None
English Language Abstract of DE 10011317, Sep., 13, 2001.
English language abstract of JP 03287588, Dec. 18, 1991.

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