公开(公告)号：DE2652148A1

公开(公告)日：1978-05-18

申请号：DE2652148

申请日：1976-11-16

Applicant: BASF AG

Inventor： MESCH WALTER DIPL CHEM DR

IPC: C07C87/20 ,  C07C85/00

Abstract: New polyalkylene polyamines with ethylene units (opt. with CH3 side-chains) and linear propylene units, and where the total number of units is >=3 of formula H2N-A-NH-A'-NH-(CH2)3- NH-A n NH2 (I) (where A and A' are -(CH2)2-, -CH(CH3)-CH2-, -CH2-CH(CH3)- or (CH2)3; and n is 0 or an integer, esp. 0-5) are prepd. by reacting a 2-hydroxyethyl- or 2-hydroxypropyl-propylene 1,3-diamine of formula HO-A'-NH-(CH2)3- NH-A nNH2 (II) with ethylene diamine, propylene 1,2- or 1,3-diamine and/or NH3 under hydrogenating conditions. New polyamines with 2C and 3C units can be obtd. without addn. of acids. The hydroxyethyl- and hydroxypropyl propylene diamines are easily available. Cyclic prods. of the homopiperazine type are not formed. (I) are used in place of known polyalkylene polyamines with uniform chain units, e.g. as flocculants, emulsion breakers and additives for mineral oils.

公开(公告)号：DE2605212A1

公开(公告)日：1977-08-25

申请号：DE2605212

申请日：1976-02-11

Applicant: BASF AG

Inventor： MESCH WALTER DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR ,  VOGES DIETER DIPL CHEM DR

IPC: C07C209/64 ,  C07C87/20

Abstract: Prepn. of dipropylene triamine and tripropylene tetramine comprises condensing 1,2- or pref. 1,3-propylene diamine at 50-250 degrees C, pref. in presence of H2 and opt. with addn. of NH3. A Gp. VIII metal-contg. catalyst is used, including noble metals, and NH3 is produced during reaction. Higher polycondensates are decomposed to the dimers and trimers. At 25-200 bars H2 pressure and 160-200 degrees C conversions of ca 60% and sometimes ca 100% are obtd. for reaction times of 1-4 hrs. Good specificity for the dimer can be obtd. Prods. can be sepd. easily by distillation; very little prodn. of cyclic, branched or partially deaminated prods. occurs.

公开(公告)号：DE2540871A1

公开(公告)日：1977-03-24

申请号：DE2540871

申请日：1975-09-13

Applicant: BASF AG

Inventor： GRAEFJE HEINZ DIPL CHEM DR ,  MESCH WALTER DIPL CHEM DR ,  WINDERL SIEGFRIED DIPL CHEM DR ,  MUELLER HERBERT DIPL CHEM DR ,  BOETTGER GUENTER DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: C07C209/64 ,  C07C87/20

Abstract: Prepn. of dipropylene triamine and tripropylene tetramine comprises condensing 1,2- or pref. 1,3-propylene diamine at 50-250 degrees C, pref. in presence of H2 and opt. with addn. of NH3. A Gp. VIII metal-contg. catalyst is used, including noble metals, and NH3 is produced during reaction. Higher polycondensates are decomposed to the dimers and trimers. At 25-200 bars H2 pressure and 160-200 degrees C conversions of ca 60% and sometimes ca 100% are obtd. for reaction times of 1-4 hrs. Good specificity for the dimer can be obtd. Prods. can be sepd. easily by distillation; very little prodn. of cyclic, branched or partially deaminated prods. occurs.

公开(公告)号：DE2445960A1

公开(公告)日：1976-04-15

申请号：DE2445960

申请日：1974-09-26

Applicant: BASF AG

Inventor： HUCHLER OTTO HERMANN DIPL CHEM ,  MESCH WALTER DIPL CHEM DR ,  WINDERL SIEGFRIED DIPL CHEM DR ,  MUELLER HERBERT DIPL CHEM DR ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: C08F8/12 ,  C08G65/324 ,  C08G65/332

Abstract: Hydroxylated polymers, esp. polyetrahydrofuran, for polyurethane prepn. are prepd. by saponifying acyloxylated polymers at 10-200 degrees C in an aq. salt soln. contg. a catalyst consisting of an acid or an acid-forming cpd. (pref. a halo acid). The reaction mixt. may contain an alcohol which is immiscible, or only partly miscible with water. The simple, economic process avoids the use and recovery of special solvents, and leads to less pollution by by-prods.