Poly:alkyl:amine derivatives
    13.
    发明专利

    公开(公告)号:DE19606846A1

    公开(公告)日:1997-08-28

    申请号:DE19606846

    申请日:1996-02-23

    Applicant: BASF AG

    Abstract: Polyalkylamine derivatives of formula ZCH2NH2-nHn (I) are new. (where, n = 0 or 1; z = polyalkyl residue of molecular weight 150-40000; Y = residue of formula (IIa) or (IIb); R, R1 and R2 = H, optionally substituted alk(en)yl, alkinyl, and optionally substituted cycloalkyl, aryl(alkyl) having heteroatom(s); A = alkylene imine residues of formula (III); m = 0-10; Alk = optionally substituted alkylene; R3 = H, alk(en)yl, alkinyl, or aryl or when Y is a residue of formula (IIa) keto residue of formula (IVa); in (IVa): R = as above or when Y = group of formula (IIb), is a cyano residue of formula (IVb) (where, R1 and R2 = as above) or when n = 0 one of the residues Y is optionally a polyoxyalkylene residue (V) (where, q = 1-30; Alk = as above; and E = H or 1-6C alkyl). Preparation of the derivatives is also claimed. Also claimed are lubricant and fuel compositions containing the above derivatives.

    14.
    发明专利
    未知

    公开(公告)号:DE19512399A1

    公开(公告)日:1996-10-10

    申请号:DE19512399

    申请日:1995-04-03

    Applicant: BASF AG

    Abstract: Paper sizing agent mixtures of: (A) finely divided aqueous dispersions of C14 to C22 alkyl diketenes obtainable by dispersing the alkyl diketenes in water in the presence of cationic starch with an amylopectin content of at least 95 wt.%, and (B) finely divided aqueous polymer dispersions forming a paper sizing agent, process for producing the paper sizing agent mixtures by mixing th e components (A) and (B) and the use of the paper sizing agent mixtures as mass and surface sizing agents for paper, pasteboard and cardboard.

    16.
    发明专利
    未知

    公开(公告)号:DE4324605A1

    公开(公告)日:1995-01-26

    申请号:DE4324605

    申请日:1993-07-22

    Applicant: BASF AG

    Abstract: Process for the continuous preparation of carboxylic acid chlorides (I) of the general formula R-COCl, in which R is a C-organic radical having 1 to 30 C atoms, by reaction of a carboxylic acid R-COOH (II) with a reaction product (III) of phosgene (IV) and an N,N-disubstituted formamide (V), in which II and III are passed in counter-current from below into a zone (2) packed with III of a reactor (1), the reaction mixture is allowed to rise in predominantly laminar flow, a phase separation into an upper phase I and a lower phase III' of predominantly III and resultant formamide being obtained and I being withdrawn from the upper phase and parts of the lower phase III' according to its formation.

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