-
公开(公告)号：DE2039465A1
公开(公告)日：1972-02-10
申请号：DE2039465
申请日：1970-08-08
Applicant: HOECHST AG
Inventor： SPIETSCHKA ERNST DIPL-CHEM DR , LANDLER JOSEF , A DR WAGNER DIETER
IPC: C07D471/22 , C09B57/12 , C09B67/48 , C07D49/00
Abstract: 1355868 Naphthoylene-bis-benzimidazoles FARBWERKE HOECHST AG 6 Aug 1971 [8 Aug 1970] 37068/71 Heading C4P The invention comprises cis-naphthoylenebis-benzimidazole in the #-crystal modification characterized by an X-ray diffraction diagram obtained by Cu-Kα-irradiation showing maximums of high intensity at diffraction angles of 4À3, 6À65 and 13À45 degrees and maximums of medium intensity at 4À8, 12À1 and 14À45 degrees. The pigment has a surface area of 15 to 25 m 2 /g. It is prepared by heating a suspension of the α- crystal modification of cis-naphthoylene-bisbenzimidazole in water and/or an organic liquid to 100-250 C. and then separating the pigment obtained. The product dyes P.V.C. and colours lacquers in red shades.
-
公开(公告)号：DE1769437A1
公开(公告)日：1971-03-25
申请号：DE1769437
申请日：1968-05-24
Applicant: HOECHST AG
IPC: C09B25/00
Abstract: 1,268,944. Quinophthalone dyes. FARBWERKE HOECHST A.G. 19 May, 1969 [24 May, 1968], No. 26439/69. Heading C4P. Quinophthalone dyes of formula (in which X is O or S; R is optionally substituted aryl, heterocyclyl, aliphatic or cycloaliphatic; Y is halogen, NO 2 or phenyl; Z is halogen; m is 1-4; n is 1 or 2). Specified R groups are phenyl, tolyl, benzylphenyl, butylphenyl, nonylphenyl, diphenyl, naphthyl, anthracenyl, pyrenyl, ethyl, hexyl, dodecyl, cyclohexyl, hexahydrobenzyl, benzimidazoyl, pyridyl, quinolyl, benzoxazolyl and benzothiazolyl, which are either unsubstituted or are substituted by F, Cl, Br, OH, NO 2 , CN, CONH 2 , N(CH 3 ) 2 , OCH 3 , OC 2 H 5 , OC 6 H 5 , OC 4 H 9 , CHO, COCH 3 , CO 2 C 2 H 5 , CO 2 H, C 6 H 5 , OC 2 F 4 , SO 2 C 6 H 5 , 2 - hydroxyethoxy, 4 - chlorophenylsulphonyl, tetrazolyl or morpholinyl. The dyes are prepared by reacting a 4-chloro or bromo quinophthalone with either (a) RXH in the presence of an alkali, or RXMe (in which Me is alkali metal or a tert. amine radical).
-
公开(公告)号：DE2314875A1
公开(公告)日：1974-10-17
申请号：DE2314875
申请日：1973-03-26
Applicant: HOECHST AG
IPC: C07D221/14 , C09B57/00 , D06P1/40
Abstract: 4-Amino-naphthalic acid imide 3-sulphonic acids of formula (I): where R is H or (substd.) (cyclo)alkyl gp., are prepd. by reactin a 4-halo 1,8-napthalic acid anhydride of formula (II): with H2N-R at >100 degrees C, to give the imide followed by sulphonation of (II). (I) are used to dye natural and/or synthetic polyamide fibres in clear, brilliant green or greenish-yellow shades.
-
公开(公告)号：DE2039848A1
公开(公告)日：1972-02-17
申请号：DE2039848
申请日：1970-08-11
Applicant: HOECHST AG
-
公开(公告)号：DE2747508B1
公开(公告)日：1979-04-26
申请号：DE2747508
申请日：1977-10-22
Applicant: HOECHST AG
Inventor： KROH ADOLF , FUCHS OTTO DIPL-CHEM DR , SPIETSCHKA ERNST DIPL-CHEM DR
IPC: C07D471/02 , C09B48/00 , C09B67/20 , C09B67/52 , C07D471/04 , C09B67/00
Abstract: Unsubstituted linear trans-quinacridone of the gamma-crystal modification is obtained by cyclization of 2,5-dianilino-terephthalic acid with the 2.5 to 4-fold quantity of polyphosphoric acid or of an acidic polyphosphoric acid methyl ester, followed by hydrolysis of the condensation product in water, intensive grinding of the aqueous crude quinacridone in the presence of an alcohol or ketone and heating of the resulting product to 80 DEG to 200 DEG C.
-
Patent Agency Ranking
-
公开(公告)号：DE2152485A1
公开(公告)日：1973-05-03
申请号：DE2152485
申请日：1971-10-21
Applicant: HOECHST AG
Inventor： URBAN MANFRED , SPIETSCHKA ERNST DIPL-CHEM DR
Abstract: Readily dispersible pigments containing 1 to 10 per cent of a surface-active agent of the formulae WHEREIN R is alkyl with 10 to 14 carbon atoms, R1 is alkyl with 9 to 12 carbon atoms and x is an integer of from 3 to 8, and process for their preparation.
-
公开(公告)号：DE1960896A1
公开(公告)日：1971-06-16
申请号：DE1960896
申请日：1969-12-04
Applicant: HOECHST AG
Inventor： FUCHS OTTO DIPL-CHEM DR , SPIETSCHKA ERNST DIPL-CHEM DR
IPC: C09B48/00
-
公开(公告)号：DE2742575B1
公开(公告)日：1979-02-08
申请号：DE2742575
申请日：1977-09-22
Applicant: HOECHST AG
Abstract: Coarsely crystalline crude dioxazine pigments are subjected to dry milling while maintaining their crystallinity as far as possible until the desired degree of fineness is reached and then treated with a solvent.
-
公开(公告)号：DE2148866A1
公开(公告)日：1973-04-12
申请号：DE2148866
申请日：1971-09-30
Applicant: HOECHST AG
Abstract: Quinacridone mixtures consisting of 85 to 99.5 percent by weight of one or several linear trans-quinacridones of the general formula WHEREIN R1 and R2 are identical or different and represent a hydrogen or halogen atom, an alkyl or alkoxy group having each 1 to 4 carbon atoms, an aryloxy, aryl, carbonamide or N-alkyl carbonamide group or which represent together the radical of an aromatic or heterocyclic ring, and 0.5 to 15 percent by weight of one or several linear trans-quinacridones of the general formula WHEREIN Y represents a straight-chained or branched alkyl or alkoxy radical having 6 to 18 carbon atoms, m and n are integers of from 0 to 1 and the sum of n and m being 1 or 2 and R1 and R2 having the meanings given above. These mixtures are obtained by mixing with one another starting compound or final products substituted accordingly during the process of preparation or formation and processing in the manner usual for quinacridones. As compared to the single components the mixture thereof is more transparent and has a better color intensity, a better dispersability and fluidity of the lacquers colored with them and frequently more brilliant shades.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.021 seconds)
