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公开(公告)号：DE3005036A1
公开(公告)日：1981-08-27
申请号：DE3005036
申请日：1980-02-11
Applicant: BASF AG
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公开(公告)号：DE3005034A1
公开(公告)日：1981-08-20
申请号：DE3005034
申请日：1980-02-11
Applicant: BASF AG
Inventor： LEHNER AUGUST ING GRAD , GIMPEL JUERGEN DIPL CHEM DR , BUETHE INGOLF DIPL CHEM DR , HARTMANN HEINRICH DIPL CHEM DR , SCHENCK HANS-UWE DIPL CHEM DR
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.
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公开(公告)号：DE2442761A1
公开(公告)日：1976-03-18
申请号：DE2442761
申请日：1974-09-06
Applicant: BASF AG
Inventor： FISCHER KARL , WUERTELE LOTHAR DIPL CHEM DR , HARTMANN HEINRICH DIPL CHEM DR , BAUER GERHARD DIPL CHEM DR , LEHNER AUGUST ING GRAD
Abstract: Linear, thermoplastic and elastic polyurethane leather and leather finishes soluble in THF and having modulus E >200 N/mm2 and high surface hardness is prepd. from the reaction prod. of A) 1 mol linear-Oh contg. polyester and/or polyether with mol. wt. 600-4000, B) 4-16 mol. branched 4-11C aliphatic diol, opt. substd by up to 50 mol % with linear 2-8C diol, C) 0-1 mol aliphatic tri- or polyol and D) 5-16 mol aromatic diisocyanate for formula (I): where X is -CH2-, or SO2, and R and R1 are H, Cl and/or methyl whereby the ratio -OH gps: -NCO gps. is approx. 1:1-1:1.06. The leather is soluble in a number of organic solvents and has high surface hardness, elasticity modulus and abrasion resistance.
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公开(公告)号：DE3131766A1
公开(公告)日：1983-02-24
申请号：DE3131766
申请日：1981-08-11
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：DE3112054A1
公开(公告)日：1982-10-07
申请号：DE3112054
申请日：1981-03-27
Applicant: BASF AG
Inventor： BLUM RAINER , LEHNER AUGUST ING GRAD , SCHENCK HANS-UWE DIPL CHEM DR
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公开(公告)号：DE2753694A1
公开(公告)日：1979-06-07
申请号：DE2753694
申请日：1977-12-02
Applicant: BASF AG
Inventor： MOTZ HERBERT DIPL ING DR , LEHNER AUGUST ING GRAD , HARTMANN HEINRICH DIPL CHEM DR , BACHMANN RUDOLF DIPL CHEM DR , HARTMANN HANS-JOERG DIPL ING D , FRISCHMANN HARALD DR , FALK ROLAND DIPL CHEM DR , HACK JOACHIM DIPL CHEM , VELIC MILAN DIPL ING DR
Abstract: Magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment dispersed in a binder which contains at least 50 percent by weight of a special polyurethane elastomer, namely a thermoplastic polyurethane which is soluble in tetrahydrofuran, is free from isocyanate groups and has been manufactured from (A) 1 mole of a hydroxyl-containing polyester having a molecular weight of from 700 to 2,500, (B) from 0.3 to 3 moles of a linear aliphatic diol of 2 to 10 carbon atoms, (C) from 0.05 to 0.4 mole of a triol of 3 to 10 carbon atoms, and (D) from 1.35 to 4.7 moles of a diisocyanate of 6 to 30 carbon atoms, the amount of NCO groups being approximately equivalent to the amount of OH groups of the sum of components (A) to (C).
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公开(公告)号：DE2501987A1
公开(公告)日：1976-07-22
申请号：DE2501987
申请日：1975-01-18
Applicant: BASF AG
Inventor： LEHNER AUGUST ING GRAD , GEHRINGER FRIEDRICH , HARTMANN HEINRICH DR
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公开(公告)号：DE2500921A1
公开(公告)日：1976-07-15
申请号：DE2500921
申请日：1975-01-11
Applicant: BASF AG
Inventor： HARTMANN HEINRICH DIPL CHEM DR , LEHNER AUGUST ING GRAD
Abstract: In the prodn. of polyurethane (I) solns. from organic di-isocyanate(s) (II) opt. contg. minor amts. of triisocyanate, polyhydroxy cpd(s). (III) with an ave. mol. wt. of 400-500 and opt. a chain extender (IV) with a mol. wt. of 62-400 and a min. of 2 NCO-reactive H atoms/mol. in the presence of organic solvent(s) for (I), which is inert towards (II), (III) and (IV), the ratio of NCO-reactive H atoms in (III) + (IV) to the NCO gps. in (II) being 1:0.95-1, the NCO gps. still present in the (I) soln. after reaching the desired fianal viscosity are reacted with an excess of a prim. and/or sec. monoamine and then the residual monoamine is bound by addn. of a monoisocyanate. The solns. can be used for all purposes requiring solns. of constant viscosity and accurate reproducibility of the props. of the prodt., e.g. as binder for magnetic tape coatings, leather finishes, plastics lacquers and metal coatings and also for the prodn. of cast films etc. (I) solns. with reproducible and regulable viscosity are obtd.
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公开(公告)号：DE2443665A1
公开(公告)日：1976-03-25
申请号：DE2443665
申请日：1974-09-12
Applicant: BASF AG
Inventor： LENZ WERNER DIPL CHEM DR , WERTHER HEINZ-ULRICH DIPL CHEM , QUESACA LUCAS , PENZIEN KLAUS DIPL CHEM DR , LEHNER AUGUST ING GRAD , HOFFMANN GERHARD DIPL CHEM DR
IPC: C08F299/00 , C08F2/50 , C08F290/00 , C08G18/42 , C08G18/81 , G03F7/032 , G03F7/038 , G03F7/02 , G03C1/71
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