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公开(公告)号：PT91142B
公开(公告)日：1995-01-31
申请号：PT9114289
申请日：1989-07-12
Applicant: HOECHST AG
Inventor： SCHLOSSER LOTHAR , WINTER RAINER , MAST JAN HILBERT
Abstract: Process for the bath pigmentation of leather, which comprises dyeing the leather with pigment dispersions which contain a compound of the formula (I) (I) where Ar is benzene or naphthalene, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen, 1 to m of the radicals A are benzoyl and/or naphthoyl, 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO-CH2-CH(SO3M)-COOM, where M is a cation, R1, R2 and R3 are hydrogen or alkyl of 1 to 14 carbon atoms, R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is a number from 1 to 150 and m is a number from 2 to 12, The pigment having an average particle size of 50 to 500, preferably 80 to 300, nm. By using these dispersions, which contain the pigments in a very finely divided form, it is possible to obtain thorough penetration of the leather with improved light fastness.
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公开(公告)号：PT95023A
公开(公告)日：1991-04-18
申请号：PT9502390
申请日：1990-08-17
Applicant: HOECHST AG
Inventor： MAST JAN-HILBERT , SCHLOSSER LOTHAR , ARMBRECHT NORBERT , SCHNAITMANN DIETER , WINTER RAINER
Abstract: Process for the bath pigmentation of leather wherein leather is dyed with very finely divided pigment dispersions in which the diameter of the pigment particles is less than 100 nm, excluding those pigment dispersions containing as dispersant a compound of the formula where Ar is phenyl or naphthyl, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen and 1 to m of the radicals A are benzoyl and/or naphthoyl, 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO-CH2-CH(SO3M)-COOM, where M is a cation, R , R and R are hydrogen or alkyl of 1 to 14 carbon atoms, R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is from 1 to 150 and m is from 2 to 12.
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公开(公告)号：CA2023513A1
公开(公告)日：1991-02-20
申请号：CA2023513
申请日：1990-08-17
Applicant: HOECHST AG
Inventor： MAST JAN-HILBERT , SCHLOSSER LOTHAR , ARMBRECHT NORBERT , SCHNAITMANN DIETER , WINTER RAINER
Abstract: Process for the bath pigmentation of leather Process for the bath pigmentation of leather in which the leather is colored with very finely divided pigment dispersions in which the diameter of the pigment particles is less than 100 nm. Those pigment dispersions which contain, as the dispersing agent, a compound of the formula (I) in which Ar is phenyl or naphthyl, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen, 1 to m of the radicals A are benzoyl and/or naphthyl 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO- CH2-CH(SO3M)-COOM in which M is a cation, R1, R2 and R3 are hydrogen or alkyl having 1 to 14 carbon atoms, R is hydrogen and/or alkyl having 1 to 9 carbon atoms, n is a number from 1 to 150 and m is a number from 2 to 12, are excluded.
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公开(公告)号：PT91142A
公开(公告)日：1990-02-08
申请号：PT9114289
申请日：1989-07-12
Applicant: HOECHST AG
Inventor： SCHLOSSER LOTHAR , WINTER RAINER , MAST JAN HILBERT
Abstract: Process for the bath pigmentation of leather, which comprises dyeing the leather with pigment dispersions which contain a compound of the formula (I) (I) where Ar is benzene or naphthalene, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen, 1 to m of the radicals A are benzoyl and/or naphthoyl, 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO-CH2-CH(SO3M)-COOM, where M is a cation, R1, R2 and R3 are hydrogen or alkyl of 1 to 14 carbon atoms, R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is a number from 1 to 150 and m is a number from 2 to 12, The pigment having an average particle size of 50 to 500, preferably 80 to 300, nm. By using these dispersions, which contain the pigments in a very finely divided form, it is possible to obtain thorough penetration of the leather with improved light fastness.
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