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公开(公告)号：DE2302482A1
公开(公告)日：1974-08-08
申请号：DE2302482
申请日：1973-01-19
Applicant: HOECHST AG
Abstract: A highly covering disazo pigment having the chemical constitution WHICH IS CHARACTERIZED BY A SPECIFIC SURFACE OF 12 - 30, PREFERABLY 15 TO 25, M2/G, A MAXIMUM OF THE GRAIN SIZE DISTRIBUTION OF BETWEEN 250 AND 500 NM AND A PROPORTION OF THESE GRAIN SIZES IN THE TOTAL DISTRIBUTION OF 35 - 65 PERCENT, PREFERABLY 45 - 60 PERCENT. This new pigment form is obtained by heating the pigment obtained after coupling with a solvent which is immiscible with water or miscible with water to a limited degree only to temperatures above 100 DEG C.
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公开(公告)号：DE2302481A1
公开(公告)日：1974-08-08
申请号：DE2302481
申请日：1973-01-19
Applicant: HOECHST AG
Inventor： RIBKA JOACHIM DIPL CHEM DR , RIEPER WOLFGANG DIPL CHEM DR , SCHWERIN SIEGFRIED DIPL CHEM D
Abstract: A form of the disazo pigment C.I. 20040 having the formula 30% of +TR IS SHOWN HAVING IMPROVED COVERING POWER, IMPROVED FLUIDITY IN LACQUER SYSTEMS AND HIGH LUSTER, WHICH IS CHARACTERIZED BY A SPECIFIC SURFACE OF 10 - 20, PREFERABLY 12 - 17 M2/G AND A MAXIMUM IN GRAIN DIAMETER DISTRIBUTION BETWEEN 500 AND 1000 NM, AT LEAST 30 % OF ALL GRAINS HAVING A DIAMETER OF FROM 500 TO 1000 NM AND LESS THAN 25% OF ALL GRAINS HAVING A DIAMETER OR MORE THAN 1000 NM. This new pigment is obtained by isolating the pigment, after coupling, by stirring it out with alkali and, after having filtered it off and washed until neutrality, heating it to temperatures above 100 DEG C with an organic solvent which is immiscible with water or miscible with water to a limited degree only.
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公开(公告)号：DE2157609A1
公开(公告)日：1973-05-30
申请号：DE2157609
申请日：1971-11-20
Applicant: HOECHST AG
Inventor： MEES BERNHARD DIPL CHEM DR , RIBKA JOACHIM DIPL CHEM DR
IPC: C08K5/00 , C08K5/22 , C08L7/00 , C08L21/00 , C09B29/15 , C09B67/22 , C09D7/00 , C09D7/12 , C09D11/00 , C09D11/02 , C10L1/00 , C09B29/10
Abstract: 1407059 Oil-soluble monoazo dye mixtures HOECHST AG 15 Nov 1972 [20 Nov 1971] 52739/72 Heading C4P Mixtures of monoazo dyes of formula wherein represents the residue of a mixture of 2 to 10 diazotized anilines, R 1 and R 2 are H atoms or C 1-4 alkyl or alkoxy groups and A is the residue of phenol and #-naphthol are prepared by coupling the mixture of diazotized anilines with a mixture of phenol and #-naphthol. The dyes may be used to colour lacquers, printing pastes, resins, fibrous materials and paper in orange shades but are preferably dissolved in aromatic solvents during or after manufacture and the concentrates obtained used to colour gasoline and mineral oils.
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Patent Agency Ranking
公开(公告)号：DE2137241A1
公开(公告)日：1973-02-08
申请号：DE2137241
申请日：1971-07-26
Applicant: HOECHST AG
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15.发明专利
公开(公告)号：DE2659696A1
公开(公告)日：1978-07-27
申请号：DE2659696
申请日：1976-12-31
Applicant: HOECHST AG
IPC: C11D1/28 , C11D3/00 , D06M13/148 , D06M13/165 , D06M13/262 , D06M13/402 , D06M13/30 , D06M13/18 , D06M13/40
Abstract: An agent for treating textile materials in the form of an aq. emulsion which contains (a) 5-20 pref. 5-15 wt.% where R is linear or branched 10-30C pref. 12-20C alkyl or alkenyl, or a gp. of formula R'-NH-(CH2)n (where n is 2-4, and R' is as R); X+ is Na+, K+ or NH4+. The emulsion also contains (b) either 2-30 pref. 3-15 wt.% (where R1 and R2 are 1-5C alkyl; or R1 is H and R2 is 1-8C alkyl, phenyl, or (1-4C alkyl)phenyl; y and z are 6-8, and pref. y + z = 14; X is as in (I)) or 2-20 wt.% (where R3 and R4, identical or different, are branched or linear 4-8C alkyl pref. branched 8C alkyl; p is 0-4, Z is -(CH2)q-COOM,-SO3M2 or -PO3M3, (where q is 1, 2 or 3 and m is an ion of an alkaline metal or of (trialkyl)ammonium)); (c) 1-15 pref. 1-3 wt.% HO(CH2CH20)mH, where m is 100-400 pref. 100-250; and (d) 1-5 pref. 1-3 wt.% non-ionic addn. prod. of ethylene oxide as emulsifier. This agent gives the textile material a soft, supple feel, and the textile material retains good weting capacity. The agent is very stable while being stored.
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公开(公告)号：DE2302517A1
公开(公告)日：1974-08-15
申请号：DE2302517
申请日：1973-01-19
Applicant: HOECHST AG
Abstract: A process for the purification of azo pigments, wherein the crude pigment is stirred for some time in an aqueous alkaline suspension in a pH range from 9 to 12, preferably from 11 to 12, at temperatures between 20 DEG to 80 DEG C and subsequently the crude pigment is filtered off and washed neutral. The pigments treated by this process show a clearer and more brilliant shade and are faster to bleeding when incorporated, for example, into a thermoplastic material than the untreated pigments.
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公开(公告)号：DE2302516A1
公开(公告)日：1974-08-15
申请号：DE2302516
申请日：1973-01-19
Applicant: HOECHST AG
Inventor： HUNGER KLAUS DIPL CHEM DR , RIBKA JOACHIM DIPL CHEM DR , WEINGARTEN FRIEDRICH DIPL CHEM , RIEPER WOLFGANG DIPL CHEM DR
Abstract: Process for the aftertreatment of the azo pigment of the formula C.I. PIGMENT ORANGE 36 wherein the crude pigment obtained after coupling is heated to temperatures from 100 DEG to 150 DEG C. in dry or wet condition in a solvent which is water-immiscible or not indefinitely water-miscible and the pigment is isolated in known manner. The pigment aftertreated in this way shows substantially improved hiding power while the same pigment prepared in the usual way has poor hiding power and can not be used in stoving lacquers.
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