公开(公告)号：DE3135830A1

公开(公告)日：1983-03-24

申请号：DE3135830

申请日：1981-09-10

Applicant: BASF AG

Inventor： HERTEL OTTO DIPL CHEM DR ,  LINHART FRIEDRICH DIPL CHEM DR ,  SCHARF EMIL DIPL CHEM DR

IPC: C08G69/00 ,  C08G69/48 ,  C08G73/02 ,  D21H17/55 ,  D21H21/10 ,  C08G73/10

Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by (a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and (b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100 DEG C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a), with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100 DEG C. The condensates are used as retention aids, flocculants and drainage aids in papermaking.

公开(公告)号：DE2313063A1

公开(公告)日：1974-09-19

申请号：DE2313063

申请日：1973-03-16

Applicant: BASF AG

Inventor： KLINGSHIRN WERNER DIPL CHEM DR ,  ZISSEL ALFRED DIPL CHEM DR ,  HERTEL OTTO DIPL CHEM DR

IPC: C14C3/18

Abstract: Title prod. obtd. by mixing (a) at least one methylol deriv. of a mononuclear, monohydric phenol of a binuclear phenol (free from condensed rings and contg. one phenolic group on each nucleus), the phenols being free from anionic gps., (b) at least one densation prod. of a naphthalene sulphonic acid with an aldehyde or aldehyde-yielding cpd. and (c) at least one condensation prod. of a phenol-sulphonic acid with urea and formaldehyde (which, if desired, is further condensed with formaldehyde and phenol), in wt. ratio a:b:c = (3-7):(2-6):(0.3-2), dissolving the mixt. in water, subjecting the resulting soln. in mechanical motion for >1 hr. above 30 degrees C and finally removing the water by evaporation.