13.
    发明专利
    未知

    公开(公告)号:DE4309193A1

    公开(公告)日:1994-09-29

    申请号:DE4309193

    申请日:1993-03-22

    Applicant: BASF AG

    Abstract: Copolymerisable oxime ethers of the general formula in which A is a divalent connecting link, R and R independently of one another are a C1- to C10-alkyl radical, a C1- to C10-alkoxy radical, a C5- to C10-cycloalkyl radical or a C5- to C10-aryl radical, which can also contain 1 - 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or the carbon ring and can be substituted by one to three C1- to C4-alkyl or alkoxy groups, R or R can be a hydrogen atom or R and R together form a bridge of 3 to 14 carbon atoms, some of the carbon atoms also being able to be part of an aromatic ring, Z is an n-valent organic radical which contains a copolymerisable ethylenically unsaturated group, and n is an integer from 1 to 3.

    15.
    发明专利
    未知

    公开(公告)号:DE3926708A1

    公开(公告)日:1991-02-14

    申请号:DE3926708

    申请日:1989-08-12

    Applicant: BASF AG

    Abstract: These photopolymerizable laminating materials consist of at least one film-forming polymer as a binder, at least one organic compound which is compatible with the binder, has at least two double bonds capable of addition polymerization and may be partially replaced by an organic compound having only one double bond capable of addition polymerization, a photoinitiator or photoinitiator system and an adhesion promoter, with or without conventional additives and assistants, the adhesion promoter used being a tricyclic heteroaromatic compound which is soluble in aqueous alkaline solutions. The said laminating materials are suitable for the production of printed circuits.

    16.
    发明专利
    未知

    公开(公告)号:ES2190018T3

    公开(公告)日:2003-07-16

    申请号:ES98115370

    申请日:1998-08-14

    Applicant: BASF AG

    Abstract: A method for cooling dispersions or liquids (D/L) after a deodorising process comprising (a) passing steam through the D/L in a boiler (1), causing it to foam, (b) taking the foam from the top of the boiler into an evacuated separator (4) through a jet (5) and thus breaking the foam, (c) condensing the water vapour from the foam in a heat exchanger (8) and removing organic volatiles, and (d) returning the broken foam to (1). This process is continued until the D/L is deodorised to the required extent, then the hot D/L is cooled by transferring it from the bottom of (1) to the evacuated separator (4) via jet (5), the water vapour produced is condensed in (8) as before, and the cooled D/L is taken off at the bottom of (4).

    Reducing residual monomer content in aqueous polymer dispersion

    公开(公告)号:DE19741187A1

    公开(公告)日:1999-03-25

    申请号:DE19741187

    申请日:1997-09-18

    Applicant: BASF AG

    Abstract: The residual monomer content of aqueous polymer dispersions is reduced by further treatment with an initiator system containing a peroxide, a saturated alpha - hydroxycarboxylic acid and, optionally, multivalent ions of a variable-valency metal. A method for reducing the residual monomer content in aqueous polymer dispersions comprises post-treatment by addition of an initiator system essentially containing: (a) 0.01-5 wt% (based on total amount of monomers used to make the dispersion) of a compound of formula: R -O-O-R (a1), and/or a compound which liberates hydrogen peroxide (H2O2) in aqueous medium (a2); (b) 0.01-30 wt% alpha -hydroxy- carboxylic acid with no polymerisable carbon-carbon double bonds or a salt thereof; and (c) 0-1000 ppm multivalent metal ions of variable valency. R and R = H, 1-8 C alkyl or 6-12 C aryl, at least one of these groups being H;

    19.
    发明专利
    未知

    公开(公告)号:DE59400924D1

    公开(公告)日:1996-12-05

    申请号:DE59400924

    申请日:1994-02-25

    Applicant: BASF AG

    Abstract: Compound of the formula in which R and R independently of one another are C1-C10-alkyl, C1-C10-alkoxy-C5-C10-cycloalkyl or a C5-C10-aryl radical which can also contain 1 to 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or carbon ring and which can be substituted by 1 to 3 C1-C4-alkyl or -alkoxy groups, R or R can represent a hydrogen atom, or R and R together form a bridge of 2 to 14 carbon atoms, it being possible for some of the carbon atoms also to be part of an aromatic ring system, A represents an n-valent organic radical, and n is an integer equal to or greater than 2.

    20.
    发明专利
    未知

    公开(公告)号:ES2082663T3

    公开(公告)日:1996-03-16

    申请号:ES94103957

    申请日:1994-03-15

    Applicant: BASF AG

    Abstract: Copolymerisable oxime ethers of the general formula in which A is a divalent connecting link, R and R independently of one another are a C1- to C10-alkyl radical, a C1- to C10-alkoxy radical, a C5- to C10-cycloalkyl radical or a C5- to C10-aryl radical, which can also contain 1 - 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or the carbon ring and can be substituted by one to three C1- to C4-alkyl or alkoxy groups, R or R can be a hydrogen atom or R and R together form a bridge of 3 to 14 carbon atoms, some of the carbon atoms also being able to be part of an aromatic ring, Z is an n-valent organic radical which contains a copolymerisable ethylenically unsaturated group, and n is an integer from 1 to 3.

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