中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

65 records (took 0.024 seconds)

    21.
    发明专利
    未知

    公开(公告)号：DE19725519A1

    公开(公告)日：1998-12-24

    申请号：DE19725519

    申请日：1997-06-17

    Applicant: BASF AG

    Inventor： SUTORIS HEINZ FRIEDRICH DR ,  MITULLA KONRAD DR ,  DUPUIS JACQUES DR ,  KALIBA CLAUS DR

    IPC: C07B63/04 ,  C07C7/20 ,  C07C15/46 ,  C09K15/20 ,  C09K15/30 ,  C09K15/32 ,  C07C15/44 ,  C07C211/45 ,  C07C205/06 ,  C07D211/92

    Abstract: The invention relates to a mixture of substances containing one or several compounds with vinyl groups as constituent (A) and a stabilizer (B) as another constituent containing one or several easily volatile nitroxyl compounds as constituent (b1), one or several non-easily volatile nitroxyl compounds as constituent (b2), optionally one or several aromatic nitro compounds as constituent (b3) and optionally one or several iron compounds as constituent (b4). The invention also relates to stabilizers (B) containing constituents (b1) and (b2), (b1) and (b2) and (b3), (b1) and (b2) and (b4), in addition to (b1), (b2), (b3) and (b4). The invention further relates to a method for inhibiting premature polymerization of compounds with vinyl groups during the cleaning thereof or distillation by adding a stabilizer (B), or by adding the constituents of stabilizer (B) as individual substances or in at least two groups of constituents.

    23.
    发明专利
    未知

    公开(公告)号：DE3776234D1

    公开(公告)日：1992-03-05

    申请号：DE3776234

    申请日：1987-08-20

    Applicant: BASF AG

    Inventor： MITULLA KONRAD DR ,  SEILER ERHARD DR ,  SCHMITT BURGHARD PROF DR ,  SIEBEL HANS PETER DR ,  JUNG RUDOLF H DR ,  SCHARF BERNHARD DR

    IPC: C08F279/02 ,  C08F285/00 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

    Abstract: Thermoplastic moulding materials comprises (A) 1-70 wt.% (w.r.t. A+B) of a graft copolymer comprising an elastomer a1 and a shell a2 grafted onto the elastomer, the elastomer a1 consisting of butadiene alone or a copolymer of butadiene with up to 30 wt.% on a1 of styrene or acrylonitrile and having an ave. particle size of 100-750 micrometres (d50-value of the integral wt. distribution), and making up 90-50 wt.% of (A), and the shell a2 being made up of at least one 8-12C vinyl aromatic monomer (a22) and at least one monoethylenically unsatd. monomer (a23), and making up 10-50 wt.% of (A); and (B) 99-30 wt.% (w.r.t. A+B) of a copolymer hard matrix comprising (b1) at least one 8-12C vinylaromatic monomer and (b2) at least one mono-ethylenically unsatd. monomer. The grafted shell a2 is made in two stages in which (1) in a first stage, 5-50 wt.% w.r.t. a2) exclusively of the vinyl aromatic monomer is graft polymerised and (2) in a second stage 50-95 wt.% (w.r.t. a2) of a mixt. of a22 and the monomer a23 in a wt. ratio of 90:10 to 66:34 is graft polymerised in the presence of the elastomer a1.

Patent Agency Ranking