141.
    发明专利
    未知

    公开(公告)号:BR0009361A

    公开(公告)日:2001-12-26

    申请号:BR0009361

    申请日:2000-03-23

    Applicant: BASF AG

    Abstract: In a block copolymer (I) containing at least two hard blocks (S1, S2) prepared from a vinylaromatic monomer (M1) and, between them, at least one soft block (BS) prepared from M1 and a diene (M2), the proportion of hard blocks is over 40 wt.% of total (I). Independent claims are also included for the following: (a) mixtures of (I) and additional styrene polymers; and (b) preparation of (I) by sequential anionic polymerization, with at least polymerization of BS being in presence of a potassium salt.

    142.
    发明专利
    未知

    公开(公告)号:DE10016280A1

    公开(公告)日:2001-10-04

    申请号:DE10016280

    申请日:2000-04-03

    Applicant: BASF AG

    Abstract: The invention relates to thermoplastic molding materials containing, as essential constituents: A) 5 to 95 wt. % of a vinyl aromatic polymer having a syndiotactic structure; B) 2 to 50 wt. % of an inorganic filler; C) 1 to 45 wt. % of a rubber-elastic particle-shaped graft polymer; D) 1 to 10 wt. % of a compatibility mediator, optionally; E) 1 to 45 wt. % of a rubber-elastic particle-shaped styrene/diene block copolymer whose portion of diene can be completely or partially hydrogenated, optionally; F) 1 to 35 wt. % of a thermoplastic elastomer based on copolymers comprised of vinyl aromatic monomers, dienes and, optionally, 1,1-diphenylethylene, and optionally; additives, whereby the weight percentages from A) to G) total 100.

    144.
    发明专利
    未知

    公开(公告)号:DE19920257A1

    公开(公告)日:2000-11-09

    申请号:DE19920257

    申请日:1999-05-03

    Applicant: BASF AG

    Abstract: The invention relates to a thermoplastic elastomer composition containing: a) 5 to 99 wt. % of a block copolymer which is constructed of hard blocks S comprised of vinyl aromatic monomers and constructed of one or more statistical soft blocks B/S comprised of dienes and of vinyl aromatic monomers; b) 1 to 95 wt. % of a plasticizer with a higher polarity than that of white oil and with a lower polarity than that of diisooctylphthalate; c) 0 to 50 wt. % of a polyolefin, and; d) 0 to 60 wt. % of additives, whereby the sum of a) through d) equals 100 wt. %. The invention also relates to the use of the shaping materials for producing flexible and elastic shaped bodies as well as to the shaped bodies produced therefrom.

    146.
    发明专利
    未知

    公开(公告)号:DE19908079A1

    公开(公告)日:2000-08-31

    申请号:DE19908079

    申请日:1999-02-25

    Applicant: BASF AG

    Abstract: The invention relates to a polymerization initiator containing an alkaline-earth metal compound selected from the group: a) of the heteroleptic alkaline-earth metal compounds of formula (I) L - M - R or; b) of the cationic alkaline-earth metal complexes of formula (II) [D -} M - R] X , whereby M represents Ca, Sr or Ba; L represents a ligand which is inactive with regard to polymerization; R represents a ligand which is active with regard to polymerization; D represents a donor ligand and; X represents a non-coordinating anion. The invention also relates to methods for producing the polymerization initiators and to methods for carrying out anionic polymerization in the presence of the polymerization inhibitors.

    147.
    发明专利
    未知

    公开(公告)号:DE59605171D1

    公开(公告)日:2000-06-15

    申请号:DE59605171

    申请日:1996-09-24

    Applicant: BASF AG

    Abstract: Thermoplastic moulding materials (I), contain (A) 30-98 wt.% graft copolymer of (aK) 30-90 wt.% rubber-elastic grafting core obtd. by copolymerisation of (aK1) 80-99.99 wt.% (1-10C alkyl) acrylate(s), (aK2) 0.01-20 wt.% crosslinking monomer and (aK3) 0-40 wt.% other comonomer(s) and (aS) 10-70 wt.% grafted shell derived from (aS1) 50-100 wt.% styrene cpd. of formula (II), in which R , R = H or 1-8C alkyl, and/or a (1-8C alkyl) (meth)acrylate and (aS2) 0-50 wt.% other monomer(s), (B) 1-50 wt.% thermoplastic polymer of (b1) 50-100 wt.% styrene and/or alpha -methylstyrene (AMS), (b2) 0-50 wt.% acrylonitrile and (b3) 0-50 wt.% other monomer(s), (C) 1-70 wt.% rubber-elastic block copolymer contg. a hard phase-forming block A based on vinylaromatic monomer units and/or a first rubber-elastic (soft) phase-forming block B based on diene monomer and an (opt. sec. or further) soft phase-forming block B/A based on vinylaromatic and diene units, in which blocks A and B/A have a Tg of above 25 degrees C and below 25 degrees C resp. and the phase vol. ratio of (A):(B/A) is such that the hard phase makes up 1-40 vol.% of (C) and the diene content is less than 50 wt.%, and (D) 0-30 wt.% of a star-shaped polymer obtd. by linking several block copolymer chains based on (d1) 30-90 wt.% styrene and/or AMS and (d2) 10-70 wt.% butadiene and/or isoprene. Also claimed are films and mouldings obtd. from (I).

    149.
    发明专利
    未知

    公开(公告)号:DE59506540D1

    公开(公告)日:1999-09-09

    申请号:DE59506540

    申请日:1995-05-31

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/02072 Sec. 371 Date Dec. 16, 1996 Sec. 102(e) Date Dec. 16, 1996 PCT Filed May 31, 1995 PCT Pub. No. WO95/34586 PCT Pub. Date Dec. 21, 1995Thermoplastic molding compounds comprise as essential components A) from 10 to 100% by weight of copolymers of the monomers of the general formulae I and II I II where R1 is H or alkyl of 1-22 carbon atoms, R2 is H or alkyl of 1-22 carbon atoms, R3 is H or alkyl of 1-4 carbon atoms, a is 0, 1, 2, 3, 4 or 5, and b is 0, 1, 2, 3, 4 or 5, B) from 0 to 3000 ppm, based on the weight of component A, of compounds of the general formula I, C) from 0 to 500 ppm, based on the weight of component A, of compounds of the general formula II, D) from 0 to 90% by weight, based on the total weight of the molding compound, of polymers other than A), and E) from 0 to 50% by weight, based on the total weight of the molding compound, of additives and processing aids.

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