43.
    发明专利
    未知

    公开(公告)号:DE4416336A1

    公开(公告)日:1995-11-16

    申请号:DE4416336

    申请日:1994-05-09

    Applicant: HOECHST AG

    Abstract: Hydrophilic polyurethane-polyureas (I) are obtd. by reacting (A) polyisocyanate(s) with (B) fatty acid deriv(s). which is/are reactive towards (a), (C) opt. a cpd. with more than 2 OH and/or COOH gps., (D) a polyalkylene glycol with a mol. wt. of 500-10,000 and (E) a cpd. with active H atom(s) which react more rapidly than water with NOC gps., with a mole ratio of (NCO gps.):(all NCO-reactive H atoms in A-E) = (0.5:1)-(2:1). Pref. mole ratio of (NCO gps.):(H atoms in OH and amino gps. in all components A-E) = (0.7:1)-(1.5:1); amts. of co-reactants are 0.1-1 mole (B), 0-0.8 mole (C), 0.1-0.8 mole (D) and 0.01-0.3 mole (E) to 1 mole (A). (B) comprise opt. unsatd. cpds., pref. fatty alcohols, fatty amines, or ethoxylated fatty alcohols or amines contg. 1-30 ethylene oxide (EO) units, esp. ethoxylated fatty alcohols with 1-20 EO units, or reaction prods. of fatty acids with polyols which may also contain amino gps., or reaction prods. of fatty acids and mono-epoxides. (C) is a bis-hydroxy-alkanecarboxylic acid, pref. dimethylolpropionic acid (DMPA).

    45.
    发明专利
    未知

    公开(公告)号:DE59100855D1

    公开(公告)日:1994-02-24

    申请号:DE59100855

    申请日:1991-12-12

    Applicant: HOECHST AG

    Abstract: A fluorine-containing powder coating is described, comprising a) a crosslinkable, fluorine-containing copolymer, composed of a vinyl ester of a highly branched carboxylic acid, whose acyl radical has 9 carbon atoms and is composed of isomers having two quaternary carbon atoms, to which 0 to 80 mol% of isomers which contain one quaternary carbon atom together with at least one tertiary carbon atom in the acyl radical are admixed, of a vinyl monomer containing OH groups, and of a fluoroolefin of the general formula CF2=CFX, in which X=F, a perfluoroalkyl radical having 1 to 8 carbon atoms or Cl, and b) 20 to 60% by weight of a crosslinking agent suitable for powder coating formulations. Preferably, the latter is a blocked polyisocyanate.

    47.
    发明专利
    未知

    公开(公告)号:FI915852A0

    公开(公告)日:1991-12-12

    申请号:FI915852

    申请日:1991-12-12

    Applicant: HOECHST AG

    Abstract: A fluorine-containing powder coating is described, comprising a) a crosslinkable, fluorine-containing copolymer, composed of a vinyl ester of a highly branched carboxylic acid, whose acyl radical has 9 carbon atoms and is composed of isomers having two quaternary carbon atoms, to which 0 to 80 mol% of isomers which contain one quaternary carbon atom together with at least one tertiary carbon atom in the acyl radical are admixed, of a vinyl monomer containing OH groups, and of a fluoroolefin of the general formula CF2=CFX, in which X=F, a perfluoroalkyl radical having 1 to 8 carbon atoms or Cl, and b) 20 to 60% by weight of a crosslinking agent suitable for powder coating formulations. Preferably, the latter is a blocked polyisocyanate.

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