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    Wood staining with dyes and solvents to pro - duce tone continuity and depth
    2.
    发明专利
    Wood staining with dyes and solvents to pro - duce tone continuity and depth 未知

    公开(公告)号：DE1901255A1

    公开(公告)日：1970-08-06

    申请号：DE1901255

    申请日：1969-01-11

    Applicant: BASF AG

    Inventor： KAMBEITZ WILLY ,  RIEDEL DR GUENTHER ,  SENNINGER DR RUDOLF

    IPC: B27K5/02 ,  B27K5/00

    Abstract: Wood staining procedure steeps deep enough to avoid subsequent dyeing of furniture parts when cut from stained billets etc. The wood is treated with soluble or difficulty soluble colouring agents in water-miscible solvents and the dye is then fixed in the wood to ensure continuity of tone and deep penetration. Copper phthalocyanines sol. in organic solvents are used or 1:1- or 1:2 metal complexes of azo or azomethine dyes with o,o -dihydroxy-, o-carboxy-o' -hydroxy-, or o-amino-o' -hydroxy groups. Dyes can be fixed in the wood by water.

    3.
    发明专利
    未知

    公开(公告)号：DE1149477B

    公开(公告)日：1963-05-30

    申请号：DEB0060672

    申请日：1960-12-29

    Applicant: BASF AG

    Inventor： DEUSCHEL DR WERNER ,  VILSMEIER DR WOLFGANG ,  RIEDEL DR GUENTHER

    IPC: C09B17/00

    Abstract: Fluorubin and fluorubins containing substituents or fused aromatic rings are made by heating to temperatures of about 140 DEG to 400 DEG C. (a) 2: 3-diaminoquinoxaline, (b) a 2: 3-diaminoquinoxaline substituted in the benzene nucleus, (c) a 2: 3-diaminoquinoxaline having fused aromatic rings or (d) a 2: 3-diaminoquinoxaline substituted on an amino group by a 2-aminoquinoxalinyl-(3) radical, if desired in the presence of an organic diluent and an acid catalyst. In processes (b) and (c) unsymmetrical products or mixtures of symmetrical and unsymmetrical products may be obtained. Mixtures of two different 2: 3-diaminoquinoxalines or an unsymmetrical di-(3-amino-2-quinoxalinyl)-amine may be used. In processes (a), (b) and (c) the starting material may be heated first to 100 DEG to 140 DEG C. to convert it to a di - (3 - amino - 2 - quinoxalinyl) - amine and then cyclized by heating to 140 DEG to 400 DEG C. Examples are given.ALSO:In an Example (1) a yellow nitrocellulose lacquer is made by milling together nitrocellulose, dibutyl phthalate, ethyl alcohol, ethyl glycol and a pigment of the formula:- ALSO:A diquinoxalinylamine of the formula a mixture of diquinoxalinylamines of the formulae and diquinoxalinylamines of the formula where R is hydrogen, chlorine, bromine, alkyl or alkoxy are made by heating diaminoquinoxalines of the formulae with compounds of the formulae respectively in N : N-dialkylamides or N-alkyllactams in the presence of alkali at 80 DEG to 200 DEG C. In examples, the following pairs of compounds are heated: (5) 2 : 3-diaminoquinoxaline and 2 - chloro - 3 - amino - quinoxaline; (8) 2 : 3-diamino - 6 - methoxy - quinoxaline and 2-chloro - 3 - amino - quinoxaline and (9) 2 : 3-diamino - 6 - chloro - quinoxaline and 2 - chloro-3 - amino - 6 methyl - quinoxaline. Bis - (2 - aminoquinoxalin - 3 - yl) amine is made (5) by heating 2 : 3-aminoquinoxaline with p-toluenesulphonic acid in N-methylpyrrolidone. 2 : 3-Diaminoquinoxalines are made by heating 2 : 3-dichloroquinoxalines with liquid ammonia at 30 DEG to 130 DEG C. under pressure. In Examples: (1) 2: 3-dichloro-quinoxaline and its 6-methyl derivative, (3) 2 : 3-dichloro-5-methyl-quinoxaline and (4) 2 : 3 : 6-trichloroquinoxaline are heated with ammonia. 2-Amino-3-chloro-quinoxalines are made by treating 2 : 3 - dichloro - quinoxalines with liquid ammonia at -10 DEG to +30 DEG C. under pressure. In an Example, (5) 2 : 3-dichloro-quinoxaline is so treated.

    5.
    发明专利
    未知

    公开(公告)号：DE1619349A1

    公开(公告)日：1971-01-28

    申请号：DE1619349

    申请日：1966-10-15

    Applicant: BASF AG

    Inventor： GRASER DR FRITZ ,  GRUENLER DR SIEGFRIED ,  RIEDEL DR GUENTHER

    IPC: C09B67/22 ,  D06P1/39 ,  D06P3/30 ,  G03B21/64

    Abstract: 1,190,978. Transparency mounts. S.A. LARSSON. Sept. 5, 1967 [Sept. 9, 1966], No. 40531/67. Heading G2C. A mounting frame for transparencies consists of two identically shaped frame halves 1, one side edge of each half being provided with a flange 9 which, when the two halves are joined together, extends over the corresponding side edge of the other frame half. The two halves are joined together by a press fit with projections 2 on each half mating with corresponding recesses 4 on the other half.

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