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    BENZOFURANE DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS OPTICAL BRIGHTENERS
    42.
    发明专利
    BENZOFURANE DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS OPTICAL BRIGHTENERS 未知

    公开(公告)号：CA1000702A

    公开(公告)日：1976-11-30

    申请号：CA149215

    申请日：1972-08-11

    Applicant: HOECHST AG

    Inventor： SAHM WILFRIED ,  SCHINZEL ERICH ,  ROESCH GUENTER

    IPC: C08K5/00 ,  C07D307/77 ,  C08K5/1535 ,  C08K5/16 ,  C08K5/41 ,  C08L67/00 ,  C08L77/00 ,  C09B57/00 ,  C11D3/40

    Abstract: 1399509 Bis-benzofuran derivatives HOECHST AG 11 Aug 1972 [13 Aug 1971] 37574/72 Heading C2C [Also in Division C3] The invention comprises compounds of the formula wherein A and A 1 each represents an aromatic, mono- or polynuclear ring system in which two adjacent C atoms are linked to the furan nucleus as indicated, R and R 1 each represents H, halogen, C 1 to C 4 alkyl, phenyl which may be substituted by C 1 to C 4 alkyl or alkoxy, halogen or COOH or SO 3 H or their functional derivatives, and B represents a continuously conjugated chain of C atoms, which may be completely or partly a constituent of a carbocyclic or heterocyclic ring system and which is conjugated with the adjacent double bonds of the two furan nuclei ; the ring systems A and A 1 may bear one or more non-chromophoric substituents. They may be obtained by (I) condensing intramolecularly a compound of the formula (II) condensing, intramolecularly, a compound of the formula wherein B 11 is a continuously conjugated chain of C atoms, (III) condensing, intermolecularly, a compound of the formula with a compound of the formula wherein D and E represent direct bonds or are continuously conjugated chains of C atoms which may be completely or partly constituents of a carbocyclic or heterocyclic ring system and which are conjugated with the adjacent double bonds of the furan nucleus, and R 6 represents an alkyl, cycloalkyl, aralkyl or aryl radical ; and (IV) condensing, intramolecularly, a compound of the formula whereby the radical B 11 migrates to the 2- position of the furan rings. Examples are given for the preparation of the compounds. They are useful as optical brightening agents. Compounds of Formula IV are obtained by reacting compounds of formula wherein M is an alkali or alkaline earth metal, with compounds of the formula wherein X is the anion of an inorganic acid.

    1 2 4 -triazolyl-(1) derivs as optical bright- - ners for varnishes synthetic fibres
    46.
    发明专利
    1 2 4 -triazolyl-(1) derivs as optical bright- - ners for varnishes synthetic fibres 未知

    公开(公告)号：DE1919209A1

    公开(公告)日：1970-10-22

    申请号：DE1919209

    申请日：1969-04-16

    Applicant: HOECHST AG

    Inventor： ANTON HORN DR ,  ERICH SCHINZEL DR ,  ROESCH GUENTER

    IPC: C07D249/08 ,  C07D249/20 ,  C07D249/24 ,  C07D521/00 ,  C07D99/02

    Abstract: derivs. as optical brighteners for varnishes, synthetic fibres Have the formula I: (wherein Z and Z1 are H, sulphonic acid or carboxylic acid gp. or functional derivs. thereof; n is 1 or 2; A is H, halogen, lower alkoxy, cyano, carboxylic, carboxylic ester, carbamoyl, opt. substd., -NH-COR in which R is lower alkyl or phenyl, opt. substd. or a gp. of formula: in which X and Y are each Cl, NH2, lower alkoxy, the residue of an aliphatic or aromatic primary or secondary amine or of a satd. heterocyclic amine; U1 and U4 are H or COOMe, Me being H or a cation; U2 is H, lower alkyl or alkoxy; U3 lower alkyl or alkoxy; U2 and U3 may together form a dioxamethylene gp.; U2 (or U3) and U1 (or U4) may each form a benzene ring fixed by condensation and opt. carrying one or more SO3Me gps.) together with their quaternised products. These brighteners may be used with fibres based on acetyl-cellulose, polyesters, polyolefins, P.V.C., polyvinylidene chloride. they are particularly suitable for application to natural or regenerated cellulose, wool, and esp. synthetic polyamides. The quarternised cpds. are particularly suitable for use on polyacrylonitrile and its copolymers.

    47.
    发明专利
    未知

    公开(公告)号：DE1902445A1

    公开(公告)日：1970-07-30

    申请号：DE1902445

    申请日：1969-01-18

    Applicant: HOECHST AG

    Inventor： FRISCHKORN DR HANS ,  SCHINZEL DR EICH ,  ROESCH GUENTER

    IPC: D06L3/12 ,  C07D55/32

    Abstract: An optical brightener composition consisting of an unsymmetrical bis-triazinylamino-stilbene disulfonic acid and of the two corresponding symmetrical compounds is superior to the single components as regards the degree of whiteness obtained thereby and the multiplicity of applications for brightening of fibrous materials of cellulosic and polyamide fibers.

    48.
    发明专利
    未知

    公开(公告)号：DE3868830D1

    公开(公告)日：1992-04-09

    申请号：DE3868830

    申请日：1988-10-15

    Applicant: HOECHST AG

    Inventor： LANGER JOERG ,  ROESCH GUENTER ,  SCHNEIDER HEINZ EDGAR

    IPC: D06M15/00 ,  D06M11/30 ,  D06M15/09 ,  D06M15/11 ,  D06M15/333

    Abstract: Sizing compsns. for regeneration are processed by adding a Cl-contg. cpd. (I) having oxidative activity. The sizing compsns. contain e.g. 1-12 wt. % solids of a sizing agent e.g. polyvinyl alcohol, carboxymethylcellulose, polyacrylates, carboxymethyl starch, guar derivs., polyester resins or vinyl acetate-acrylate copolymers.

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