4.
    发明专利
    未知

    公开(公告)号:ES2046271T3

    公开(公告)日:1995-04-01

    申请号:ES88117167

    申请日:1988-10-15

    Applicant: BASF AG

    Abstract: 4-Formylaminopiperidine derivatives of the formula (I) (II) where n is 1 or 2, R1 to R4 are each alkyl or R1 and R2 or R3 and R4 are tetra- or pentamethylene, R5 is hydrogen or alkyl, R6 is hydrogen, unsubstituted or substituted alkyl, alkenyl, aralkyl or acyl, and, when n is 1, Y is hydrogen, unsubstituted or substituted alkyl, alkenyl, cycloalkyl, bicycloalkyl, aralkyl, aryl, alkyl containing heterocyclic radicals, or or, when n is 2, Y is alkylene, cycloalkylene, aralkylene or arylene or is alkylene which is interrupted by oxygen, nitrogen, sulfur or a 5-membered or 6-membered heterocyclic structure, and their acid addition salts have very good stabilizing properties in plastics.

    5.
    发明专利
    未知

    公开(公告)号:ES2066800T3

    公开(公告)日:1995-03-16

    申请号:ES89105096

    申请日:1989-03-22

    Applicant: BASF AG

    Abstract: Silicon naphthalocyanines of the formula … … in which… Nc denotes the radical of a naphthalocyanine system which is optionally substitued by C1-C10-alkyl or C1-C10-alkoxy, and… R and R independently of one another denote a radical of the formula … … in which R stands for branched C6-C20-alkyl of the formula … … in which n has the meaning 1 to 5 and R and R independently of one another have the meaning C1-C16-alkyl, and R and R independently of one another stand for C1-C10-alkyl or the radical OR , in which R has the abovementioned meaning, or the radical R also denotes C1-C10-alkyl, and thin radiation-sensitive coating films containing these silicon naphthalocyanines.

    6.
    发明专利
    未知

    公开(公告)号:DE59007128D1

    公开(公告)日:1994-10-20

    申请号:DE59007128

    申请日:1990-10-15

    Applicant: BASF AG

    Abstract: Azulene squaric acid dyes containing ester groups, of the formula in which L denotes C1-C12-alkylene which is optionally substituted by phenyl, R denotes C1-C12-alkyl, mono- or polyunsaturated C1-C12-alkenyl, which can be substituted by phenyl, C5-C7-cycloalkyl, C5-C7-cycloalkenyl, optionally substituted phenyl, pyrrolyl, furanyl, thienyl or pyridyl and R , R , R and R independently of one another denote hydrogen or optionally substituted C1-C12-alkyl, with the proviso that if R denotes hydrogen, the ring positions of the substituents CH2-L-O-CO-R and R on one or both azulene rings can also be interchanged with one another within an azulene ring, their intermediates and an optical recording medium which contains the novel dyes.

    10.
    发明专利
    未知

    公开(公告)号:DE59000677D1

    公开(公告)日:1993-02-11

    申请号:DE59000677

    申请日:1990-04-24

    Applicant: BASF AG

    Abstract: 2-Cyano-3,3-diarylacrylic esters I … … (Ar and Ar are aromatic radicals and R is an aliphatic radical having 3-30 C atoms> are prepared by reaction of a 2-cyano-3,3-diarylacrylic ester II … … (R is methyl or ethyl> in the presence of a basic catalyst with an alcohol III… R-OH (III> with removal of the alcohol R -OH formed. … Esters I are valuable light stabilisers, for example for plastics.

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