Title:
DISPERSE DYES
Document Type and Number:
WIPO Patent Application WO/2011/077462
Kind Code:
A3
Abstract:
The present invention is directed to a disperse dye of formula (1) Wherein, X, Y and Z are, independently, hydrogen, halogen, cyano, nitro or SO2F; Wherein at least one of X, Y and Z is SO2F. R1 is hydrogen, methyl, hydroxyl or NHR4; R2 is hydrogen, chloro or methoxy; R3 is hydrogen, (C1-C4)-alkyl or -CH2 (CH2)nCOOCH2CN; R5 is hydrogen, (C1-C4)-alkyl or -CH2 (CH2)mCOOCH2CN; R4 is -COCH3,-CO C2H5, -SO2CH3 or SO2C2H5; n and m are independently 0,1 or 2. with the proviso: - When, Y and Z both are Cl, R1 is other than methyl. - When, R2 is Hydrogen and R3, R4 both are alkyl, R1 is selected from NHSO2CH3 or NHSO2C2H5. Disperse dyes of Formula (I) have excellent washing fastness and light fastness on polyester fiber and polyester blends.
Inventors:
DESAI PANKAJ (IN)
HIMENO KIYOSHI (JP)
DESAI NIKHIL (IN)
PATEL JAY (IN)
HIMENO KIYOSHI (JP)
DESAI NIKHIL (IN)
PATEL JAY (IN)
Application Number:
PCT/IN2010/000851
Publication Date:
August 18, 2011
Filing Date:
December 23, 2010
Export Citation:
Assignee:
COLOURTEX IND LTD (IN)
DESAI PANKAJ (IN)
HIMENO KIYOSHI (JP)
DESAI NIKHIL (IN)
PATEL JAY (IN)
DESAI PANKAJ (IN)
HIMENO KIYOSHI (JP)
DESAI NIKHIL (IN)
PATEL JAY (IN)
International Classes:
D06P1/16; C09B29/01; C09B29/039; C09B29/045; C09B29/08; D06P3/54
Domestic Patent References:
| WO1995020014A1 | 1995-07-27 | |||
| WO1997027247A1 | 1997-07-31 |
Foreign References:
| GB764308A | 1956-12-28 | |||
| GB909843A | 1962-11-07 | |||
| DE953104C | 1956-11-29 | |||
| DE2557523A1 | 1976-07-15 |
Attorney, Agent or Firm:
MAJUMDAR, Subhatosh et al. (5 Harish Mukherjee Road, Kolkata 5, IN)
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