4.
    发明专利
    未知

    公开(公告)号:DE59605528D1

    公开(公告)日:2000-08-10

    申请号:DE59605528

    申请日:1996-02-06

    Applicant: BASF AG

    Abstract: The method for chemically differential imaging using a scanning force microscope uses chemically modified samples, where the imaging is in normal force, elasticity or tapping/non-contact mode. A detector (1), laser source (2), piezoelectric adjuster (3), tip and lever arm (4) are used to evaluate the sample (5). The scanning tip is either a metal or oxide layer, or it may be coated with one or more substances, such as thiol groups with additional acid or base functions, thiol with nuclein base, disulphide with acid base or nuclein base.

    6.
    发明专利
    未知

    公开(公告)号:DE59802999D1

    公开(公告)日:2002-03-21

    申请号:DE59802999

    申请日:1998-08-01

    Applicant: BASF AG

    Abstract: A polyoxymethylene moulding composition (I) comprises (A) a polyoxymethylene homo- and/or copolymer; (B) conventional additives; and (C) 0.01-2 parts weight (pts. wt.) (w.r.t. (A) + (B)) of a polymeric additive to improve thermal stability, consisting of a copolymer prepared by polymerisation of (C1) 60-90 pts. wt. of a (methy)acrylate; (C2) 10-40 pts. wt. of a (meth)acrylamide; (C3) 0.2-5 pts. wt. of a molecular weight regulator (w.r.t. 100 pts. wt. (C1) and (C2)); and (C4) upto 2 pts. wt. of a lipophilic radical polymerisation initiator (w.r.t. 100 pts. wt. (C1) and (C2)). Also claimed are (i) production of a moulding article or film from (I) by melting and mixing the components in an extruder at 150-260 degrees C and processing to produce a reinforced or non-reinforced article or film; and (ii) the resulting moulded article, semi-finished product or film.

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