Back to results
US 8,262,744 B2Granted
Optical brighteners and compositions comprising the same
AssigneeMilliken & Company
InventorsRobert L. Mahaffey, Eduardo Torres, Dominick J. Valenti, Patrick D. Moore, Leland G. Close, Jr.
Life of this patent
Estimating the term…
Abstract
Novel compounds based on diaminostilbene are provided. The compounds conform to the general structures The compounds are useful as optical brighteners. Compositions, such as laundry compositions, containing such compounds are also provided.
Claims23
A compound conforming to the structure of Formula (I)
- wherein R1 is carbonyl or sulfonyl;
- R3 is selected from the group consisting of:
- (A) hydroxyl;
- (B) —O−M+, wherein M+ is a positively charged counterion;
- and
- (C) a substituent selected from the group consisting of —OR6, —NHR6, and —NR6R6;
- wherein R6 is selected from the group consisting of —R7—O—R8—R9 and —R8—R9;
- R7 is alkyl or aryl;
- R9 is hydrogen or alkyl;
- and R8 is a divalent substituent selected from the group consisting of:
- divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V)
- wherein R20 and R21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl;
- R4 and R5 are independently selected from the group consisting of hydrogen, alkoxy, amino, alkylamino, arylamino, hydroxyalkylamino, morpholino, aniline, alkyl anilino, piperazinyl, piperidinyl, and
- a substituent selected from the group consisting of —OR10, —NHR10, and —NR10R10;
- wherein R10 is selected from the group consisting of —R11—O—R12—R13 and —R12—R13;
- R11 is alkyl or aryl;
- R13 is hydrogen or alkyl;
- and R12 is a divalent substituent selected from the group consisting of:
- divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V)
- wherein R20 and R21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl;
- and
- wherein R3 is not hydroxyl or —O−M+ when R4 and R5 are both selected from the group consisting of hydrogen, alkoxy, amino, alkylamino, arylamino, hydroxyalkylamino, morpholino, anilino, and alkyl anilino.
19 more elements
A compound conforming to the structure of Formula (XX)
- wherein R1 is carbonyl or sulfonyl;
- R3 is selected from the group consisting of:
- (A) hydroxyl;
- (B) —O−M+, wherein M+ is a positively charged counterion;
- and
- (C) a substituent selected from the group consisting of —OR6, —NHR6, and —NR6R6;
- wherein R6 is selected from the group consisting of —R7—O—R8—R9 and —R8—R9;
- R7 is alkyl or aryl;
- R9 is hydrogen or alkyl;
- and R8 is a divalent substituent selected from the group consisting of:
- divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V)
- wherein R20 and R21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl;
- R50 is —R51—R52 or —OR10, provided R51 is independently selected from the substituents recited above for R1, and R52 is independently selected from the substituents recited above for R3;
- R10 is selected from the group consisting of —R11—O—R12—R13 and —R12—R13;
- R11 is alkyl or aryl;
- R13 is hydrogen or alkyl;
- and R12 is a divalent substituent selected from the group consisting of:
- divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V)
- wherein R20 and R21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl;
- and
- wherein R3 is not hydroxyl or —O−M+ when R52 is either hydroxyl or —O−M+, and R52 is not hydroxyl or —O−M+ when R3 is either hydroxyl or —O−M+.
18 more elements
Dependencies are inferred from the claim text.