3.
    发明专利
    未知

    公开(公告)号:AT256060B

    公开(公告)日:1967-08-10

    申请号:AT809465

    申请日:1965-09-03

    Applicant: BASF AG

    Abstract: Aminoalkanol sulphuric acids, i.e. sulphuric acid monoesters of aminoalkanols are prepared by allowing an aminoalkanol and sulphuric acid to flow into a vigorously stirred suspension agent which agent is immiscible with water and is kept boiling at 70 DEG to 150 DEG C., the water formed in the reaction and any water supplied with the reactants being distilled off together with part of the suspension agent, the reaction being effected at atmospheric or subatmospheric pressure.

    Thermoplastic moulding materials with impact strength and rigidity

    公开(公告)号:DE4015654A1

    公开(公告)日:1991-11-21

    申请号:DE4015654

    申请日:1990-05-16

    Applicant: BASF AG

    Abstract: Thermoplastic moulding materials (I) comprising a hard matrix (A) derived from vinylaromatic monomer(s) (a1) and polar comonomer(s) (a2), and a soft phase (B) are claimed. (I) are obtd. by bulk- or soln.-polymerisation of (a1) and (a2) in the presence of a dissolved elastomeric graft base (II), contg. 1.5-6.5 wt.% (meth)acrylate ester as comonomer (a2). More specifically, (a2) is an ester of (meth)acrylic acid and a 2-5C (pref. 3-5C) alcohol. (I) contains rubber in the form of microcapsules or cellular particles with mean dia. 200-1000nm. (I) contains 3-25 wt.% (II) (namely butadiene and/or isoprene polymers; based on iodine number), together with normal additives, etc..

    8.
    发明专利
    未知

    公开(公告)号:DE58901342D1

    公开(公告)日:1992-06-11

    申请号:DE58901342

    申请日:1989-12-23

    Applicant: BASF AG

    Abstract: An impact-resistant thermoplastic molding material which contains, based in each case on A+B, from 80 to 50% by weight of a hard matrix A of polystyrene having a molecular weight &upbar& M eta of from 150,000 to 200,000 and from 50 to 20% by weight of a soft phase B which is uniformly distributed in the hard matrix and has a median particle diameter d50 (volume average) of from 1 to 10 mu m, and can be obtained by polymerizing styrene in the presence of an elastomeric grafting base, advantageously has a molecular weight of the grafted branches of from 1.1 to 1.35 times the molecular weight of the hard matrix, and the degree of grafting is from 50 to 100%.

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