21.
    发明专利
    未知

    公开(公告)号:DE3580516D1

    公开(公告)日:1990-12-20

    申请号:DE3580516

    申请日:1985-04-22

    Applicant: BASF AG

    Abstract: Fiber-reinforced materials are produced by a process in which a heat-stable thermoplastic aromatic polyether A which contains reactive groups, preferably nitrile groups and/or sulfur bridges and/or arylthio or alkylthio groups, if necessary together with a heat-stable thermoplastic polymer B which does not contain any reactive groups, is applied onto reinforcing fibers, the resulting semi-finished product is molded and, in the molding obtained, the plastic matrix is crosslinked so that the glass transition temperature increases and it becomes virtually insoluble.

    22.
    发明专利
    未知

    公开(公告)号:DE3916494A1

    公开(公告)日:1990-11-22

    申请号:DE3916494

    申请日:1989-05-20

    Applicant: BASF AG

    Abstract: Heterocyclic amidine derivatives of the general formula I (I) in which the variables R1 are the same or different and denote hydrogen, C1-C4-alkyl, C1-C4-alkoxy, hydroxyl or chlorine, R2 to R5 denote hydrogen or C1-C4-alkyl and R3 and R4 can together form a five-membered or six-membered ring, R6 denotes hydrogen or C1-C8-alkyl, R7 denotes cyano or -COOR8, -COR8, -CONHR8 or -CONR82, in which R8 is a straight-chain or branched-chain C1-C12-alkyl group which may be interrupted by oxygen atoms, a cyclopentyl or cyclohexyl group or a phenylalkyl group having from 1 to 3 carbon atoms in the alkyl moiety, A is a chemical bond or a methylene group which may additionally carry one or two C1-C4-alkyl radicals, and m and n are each 1 or 2. The said heterocyclic amidine derivatives I serve as UV stabilizers for organic materials.

    26.
    发明专利
    未知

    公开(公告)号:DE3814781A1

    公开(公告)日:1989-11-09

    申请号:DE3814781

    申请日:1988-04-30

    Applicant: BASF AG

    Abstract: A process for the preparation of 2-hydroxy-4-(2'-hydroxyethoxy)benzophenones, by reacting 2,4-dihydroxybenzophenones with ethylene carbonate in the presence of a quaternary ammonium salt catalyst at elevated temperatures, and isolating the finished product from the crude reaction mixture.

    29.
    发明专利
    未知

    公开(公告)号:DE3743279A1

    公开(公告)日:1989-06-29

    申请号:DE3743279

    申请日:1987-12-19

    Applicant: BASF AG

    Abstract: The bicyclo[3.3.1]nonane derivatives have the general formula (I) … … in which… n represents an integer from 1 to 70,… R represents hydrogen,… R represents hydrogen or hydroxyl or the radical … … R and R independently of one another represent phenyl, 1-naphthyl or 2-naphthyl, where the phenyl and naphthyl can be substituted by 1,2 or 3 C1- to C12-alkyl, C1- to C12-alkoxy, chlorine, bromine, fluorine, trifluoromethyl or cyano and where in the case of 2 and 3 substituents these can be identical or different,… A and B independently of one another represent a chemical bond, C1- to C22-alkylene, cycloalkylene, … … in which… m and o each denote numbers from 1 to 20 and… R denotes hydrogen, C1-C22-alkyl, C5-C12-cycloalkyl, C7-C18-phenylalkyl, phenyl or C2-C22-cyanoalkyl,… M represents a radical of the formula … … where M can be bonded to A both via the nitrogen atom and via the carbon atom and… R , R , R and R independently of one another denote C1-C4-alkyl or R and R and/or R and R together denote a tetra- or pentamethylene group,… R represents hydrogen, cyano, hydroxyl, … … R denotes hydrogen, C1-C22-alkyl, C5-C12-cycloalkyl, C5-C16-phenylalkyl, or a 5- or 6-membered heterocycle or… - if n = 1 - -M-B-R represents a radical of the formula … … where in the formulae… R represents C1-C4-alkyl,… R represents hydrogen, C1-C4-alkyl or C1-C4-alkoxy and… R represents hydrogen or C1-C12-alkyl. … The compounds (I) have extremely good stabilising properties for plastics. The compounds (I) are colourless, readily compatible with organic polymers and are stable to thermal decomposition.

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