公开(公告)号：DE4404588A1

公开(公告)日：1995-08-17

申请号：DE4404588

申请日：1994-02-12

Applicant: BASF AG

Inventor： HEITZ WALTER PROF DR ,  NOEDING GUNNAR ,  REUTHER WOLFGANG DR ,  SCHERR GUENTER DR

IPC: C02F1/56 ,  C08J3/09 ,  C08L79/02 ,  C09K23/00 ,  C09K23/10 ,  C09K23/34 ,  D21H17/54 ,  D21H21/10 ,  C08L101/02 ,  C08J3/24 ,  B01F17/34 ,  B01F17/10 ,  B01D21/01

Abstract: Microemulsion comprises water-soluble amino gp.-contg. polymer(s) (and reaction prods. of this with cross-linkers) and an oil. The av. particle size of the emulsified polymer is below 1000 mm. The ratio of polymer to oil phase is 1:1-100. The emulsion contains 10-500 wt.% (based on the polymer and opt. present water) of at least one amphiphilic surfactant.

公开(公告)号：DE19605447A1

公开(公告)日：1997-08-28

申请号：DE19605447

申请日：1996-02-15

Applicant: BASF AG

Inventor： ETTL ROLAND DR ,  MEIXNER HUBERT DR ,  HEITZ WALTER PROF DR ,  NOEDING GUNNAR

IPC: C07C45/90 ,  C08G73/02 ,  D21H17/17 ,  D21H17/56 ,  D21H21/16 ,  C07C49/88 ,  C07C45/86 ,  C09K15/16

Abstract: Stabilisers for aqueous alkyl diketene dispersions comprise amphiphilic alkylated polyethylene imines prepared by partial alkylation of polyethylene imines using alkyl halides containing at least 5C atoms. Also claimed are aqueous alkyl diketene dispersions containing these stabilisers, used as internal sizing agents for paper pulp. Preferably the polyethylene imines have a weight average molecular weight of 500-50000 (700-30000). The alkyl halides contain 5-30C atoms and are preferably 1-22C alkyl bromides. The degree of alkylation is 1-35 (3-33)%.