公开(公告)号：DE3427683A1

公开(公告)日：1986-02-06

申请号：DE3427683

申请日：1984-07-27

Applicant: BASF AG

Inventor： BALZ WERNER DR ,  KOVACS JENOE DR ,  LECHNER HILMAR ,  SCHAEFER DIETER DR ,  BUETHE INGOLF DR

IPC: G11B5/702 ,  C08F299/02 ,  C09D5/23 ,  C09D171/00 ,  C09D171/12 ,  C09D175/06 ,  G11B5/73 ,  G11B5/738 ,  G11B5/842 ,  B05D5/12

Abstract: Layer-type magnetic recording media are produced by applying a dispersion of a magnetically anisotropic material in a binder solution onto a flexible plastic base provided with an adhesion-promoting layer and then solidifying the magnetic layer, by a method in which the adhesion-promoting layer consists of a radiation-curable aqueous dispersion of a polymer.

公开(公告)号：DE3241450A1

公开(公告)日：1984-05-10

申请号：DE3241450

申请日：1982-11-10

Applicant: BASF AG

Inventor： BUETHE INGOLF DR ,  MARX MATTHIAS DR ,  SCHLEIER GISBERT DR ,  PETERS REINHARD DR

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  C08G18/80 ,  C07C125/06 ,  C08G18/14 ,  C08G18/78

Abstract: Diphenylmethane diisocyanate-based liquid polyisocyanate mixtures containing urethane groups and having an isocyanate content of from 12 to 30 percent by weight are obtained by reaction of a polyoxypropylene polyoxyethylene polyol containing 5 to 30 percent by weight of oxyethylene with diphenylmethane diisocyanate-based isocyanates. These polyisocyanate mixtures are storage stable at low temperature and yield flexible polyurethane foams having improved mechanical properties.

公开(公告)号：DE3233251A1

公开(公告)日：1984-03-08

申请号：DE3233251

申请日：1982-09-08

Applicant: BASF AG

Inventor： STRAEHLE WOLFGANG DR ,  MARX MATTHIAS DR ,  HAAF FRANZ DR ,  DENNI RAYMOND DR ,  BUETHE INGOLF DR ,  NISSEN DIETMAR DR

IPC: C08G18/48 ,  C08G65/22 ,  C08G65/26 ,  C08G65/28 ,  C08G18/14 ,  C08G18/58

Abstract: Asymmetric polyether-polyols having a functionality of from 3 to 8, a hydroxyl number of from 15 to 112 and preferably a compatibility index of less than 50 DEG C are obtained by reacting a) one mol of a polyoxyalkylene glycol having a hydroxyl number of from 15 to 200 with b) from 0.1 to 2 mol of an epoxyalcohol of the formula in which R and R are identical or different and are a hydrogen atom or a -CH2OH radical, x is an integer from 0 to 9 and y is 0 or 1, preferably glycidol, and subsequent c) alkoxylation of the resultant trifunctional to octafunctional intermediate c) in the presence of basic catalysts until the hydroxyl number mentioned has been reached. The asymmetric polyether-polyols are particularly suitable for the production of open-cell polyurethane foams.

公开(公告)号：DE3161810D1

公开(公告)日：1984-02-09

申请号：DE3161810

申请日：1981-01-28

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  BUETHE INGOLF DR ,  HEIL GUENTER DR ,  LENZ WERNER DR ,  HARTMANN HEINRICH DR

IPC: C08F2/46 ,  C08F8/34 ,  C08G18/08 ,  C08G18/67 ,  C08G18/83 ,  C08G85/00 ,  C09D5/02 ,  D04H1/587 ,  D04H1/64 ,  G03F7/038

公开(公告)号：DE3160132D1

公开(公告)日：1983-05-05

申请号：DE3160132

申请日：1981-01-28

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  GIMPEL JUERGEN DR ,  BUETHE INGOLF DR ,  HARTMANN HEINRICH DR ,  SCHENCK HANS-UWE DR

IPC: C08F2/46 ,  C08G18/67 ,  C08G18/83 ,  C09D5/44 ,  C25D13/06 ,  C09D3/72 ,  C09D5/40

Abstract: A process for coating electrically conductive objects comprising A. immersing said object as the anode of an electric current in an aqueous polyurethane dispersion prepared by (1) forming a polyurethane solution by reacting an organic polyisocyanate in the presence of an organic solvent with (a) an acrylic ester diol having a molecular weight of between 146 and 3,000; (b) an organic polyhydroxyl compound other than (a) having a molecular weight between 400 and 5,000 selected from the group consisting of polyester, polyols, polyether polyols, polycarbonates, polylactones, and mixtures thereof; and (c) a chain extender selected from the group consisting of diols, triols, diamines, aminoalcohols, having a molecular weight between 62 and 400, water, and mixtures thereof; (2) forming an anionic polyurethane addition product by reacting said polyurethane solution with a mercaptocarboxylic acid salt in the presence of a solvent; (3) adding water; and (4) removing the organic solvent, and B. passing an electric current between the anode and a cathode which is also dispersed in said dispersion, and C. irradiating said object with ultraviolet radiation or electron rays. The process can be used for coating metals such as iron, steel and aluminum.