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    42.
    发明专利
    未知

    公开(公告)号：DE19644269A1

    公开(公告)日：1998-04-30

    申请号：DE19644269

    申请日：1996-10-24

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS DR ,  SCHAUS ECKARD DR

    IPC: C08F10/02 ,  C08F210/02 ,  C08G2/26 ,  C08G2/30

    Abstract: Process for preparing polyethylene waxes containing keto groups (I) by telomerisation of ethylene with aldehyde at pressures of 500-5000 bar and temperatures of 100-280 degrees C, using a mol ratio ethylene : aldehyde of 5:1 to 50:1, preferably 5:1 to 20:1 and especially 5:1 to 15:1.

    45.
    发明专利
    未知

    公开(公告)号：DE59402642D1

    公开(公告)日：1997-06-12

    申请号：DE59402642

    申请日：1994-06-24

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS DR ,  BESECKE SIEGMUND DR ,  ENDLICH KARL-LUDWIG

    IPC: C08F2/20 ,  C08F2/42 ,  C08F4/32 ,  C08F4/36 ,  C08F220/12

    Abstract: Bead polymers comprising 80 to 99 % by weight of at least one C1-C18-alkyl ester of methacrylic acid and 1 to 20 % by weight of at least one C1-C18-alkyl ester of acrylic acid, obtainable by polymerisation, at a temperature between 100 and 140 DEG C which is approximately constant over the majority of the polymerisation time, by means of an initiator system comprising at least two peroxidic initiators I having different decomposition temperatures T, at which in each case half of the initiator has decomposed after 1 hour, wherein - the initiator Imin having the lowest decomposition temperature has a decomposition temperature Tmin in the range from 60 to 100 DEG C, - the initiator Imax having the highest decomposition temperature has a decomposition temperature Tmax in the range from 100 to 140 DEG C, the difference between Tmax and Tmin is greater than 10 DEG C, and Imax is a perketal of the formula (I) in which the radicals R and R are identical or different alkyl radicals having 1 to 5 carbon atoms, where R and R can be connected to form a 5- or 6-membered ring, and R is a tert-butyl or tert-amyl radical, and - further initiators In, which can be used if desired and have decomposition temperatures Tn between Tmin and Tmax, in the presence of a protective colloid, with the proviso that from 20 to 80 % by weight of the C1-C18-alkyl ester of acrylic acid is only added after a conversion in the range from 20 to 80 %, based on the amount of monomer employed at the beginning.

    48.
    发明专利
    未知

    公开(公告)号：DE59302717D1

    公开(公告)日：1996-07-04

    申请号：DE59302717

    申请日：1993-03-04

    Applicant: BASF AG

    Inventor： BESECKE SIEGMUND DR ,  DECKERS ANDREAS DR ,  LAUKE HARALD DR

    IPC: C08F8/32

    Abstract: Copolymers obtainable by (1) copolymerisation of a monomer mixture of (A) from 1 to 99% by weight of at least one monomer of the formula I CH2 = C(E)CH2-O-CH2C(F) = CH2 I in which E and F are selected from the group consisting of -COOR , -COR , -CONR R and -CN, and R , R and R are defined as follows: R = H, C1-C18-alkyl, optionally substituted C3-C8-cycloalkyl or C3-C8-cycloalkyl-C1-C5-alkyl, hydroxy-C1-C5-alkyl, amino-C1-C 5-alkyl, N-C1-C4-alkylamino-C1-C5-alkyl, N,N-di(C1-C4-alkyl)amino-C1-C 5-alkyl, or optionally substituted C6-C18-aryl or C6-C18-aryl-C1-C4-alkyl; R and R = H, C1-C18-alkyl, optionally substituted C3-C8-cycloalkyl or C3-C8-cycloalkyl-C1-C5-alkyl, or optionally substituted C6-C18-aryl or C6-C18-aryl-C1-C4-alkyl; (B) from 99 to 1% by weight of at least one compound selected from the group consisting of acrylic and methacrylic acid and C1-C20-alkyl and C5-C12-cycloalkyl esters of acrylic and methacrylic acid, and (C) from 0 to 98% by weight of at least one further free-radical-polymerisable monomer, and (2) reaction of these copolymers with a compound of the formula II R NH2 II in which R is hydrogen, C1-C22-alkyl, C5-C8-cycloalkyl, C6-C10- aryl or C6-C10-aryl-C1-C4-alkyl, where these radicals, with the exception of hydrogen and the C1-C22-alkyl radicals, may be substituted, or mixtures thereof, and a process for the preparation of these copolymers, their use for the production of mouldings, films or fibres, and mouldings, films or fibres made from these polymers.

    50.
    发明专利
    未知

    公开(公告)号：DE59302449D1

    公开(公告)日：1996-06-05

    申请号：DE59302449

    申请日：1993-12-23

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS DR ,  GUENTHERBERG NORBERT DR ,  NIESSNER NORBERT DR

    IPC: C08L33/12 ,  C08L51/00 ,  C08L51/06 ,  C08L83/04

    Abstract: The present invention relates to moulding compositions based on polymethyl methacrylate, essentially containing A) from 99.99 to 95.0% by weight of a mixture essentially comprising a1) from 5 to 95% by weight of polymethyl methacrylate, obtainable by polymerisation of a mixture essentially comprising a11) from 80 to 100% by weight of methyl methacrylate and a12) from 0 to 20% by weight of a C1-C20-alkyl ester of acrylic acid, and a2) from 95 to 5% by weight of a multistep graft copolymer based on a C1-C20-alkyl ester of acrylic and/or methacrylic acid, and B) from 0.01 to 5.0% by weight of a polysiloxane of the formula I in which R is C1-C6-alkyl or C6-C10-aryl, R is hydroxy-C1-C6-alkyl or amino-C1-C6-alkyl, and n is a natural number from 5 to 200. d

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