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    61.
    发明专利
    未知

    公开(公告)号：DE19508935A1

    公开(公告)日：1996-09-19

    申请号：DE19508935

    申请日：1995-03-13

    Applicant: BASF AG

    Inventor： KNOLL KONRAD DR ,  LOTH WOLFGANG DR ,  GAUSEPOHL HERMANN DR

    IPC: C08F12/00 ,  C08F12/32 ,  C08K5/00 ,  C08L25/02 ,  C08L25/06 ,  C08L53/00 ,  C08L101/00 ,  C09K21/14

    Abstract: Fire resistant thermoplastic moulding materials contain (A) 5-99.5 wt.% copolymers derived from monomers of formula (I) and (II), where R1, R2 = H or 1-22C alkyl; R3 = H or 1-4C alkyl; and a, b = 0, 1, 2, 3, 4 or 5; (B) 0-89.5 wt.% polymers other than (A); (C) 0.5-20 wt.% fire retardant; and (D) 0-50 wt.% other additives and processing aids. Pref. component (A) is a copolymer of 1,1-diphenylethylene (DPE) and styrene, pref. a block copolymer of formula (A'-B')n, A'-B'-A', A'-(B'-A')m, B'-A'-B', B'-(A'-B')m, XÄ(A'-B')nÜm, X-Ä(B'-A')nÜm, XÄ(A'-B'-A')nÜm, XÄB'-A'-B')nÜm, XÄ(A'-B')nB'pÜm, XÄ(B'-A')nB'pÜm, XÄ(A'-B')nA'qÜm, XÄ(B'-A')nA'qÜm, B'p-X-(A'-B')n or A'q-X-(B'-A')n, A' = a copolymer block derived from (I) and (II); B' = a block derived from monomer (II); X = residue of an at least difunctional coupling agent; n, p, q = 1-10; and m = 2-20.

    62.
    发明专利
    未知

    公开(公告)号：DE4445141A1

    公开(公告)日：1996-06-20

    申请号：DE4445141

    申请日：1994-12-17

    Applicant: BASF AG

    Inventor： KNOLL KONRAD DR ,  LOTH WOLFGANG DR ,  FISCHER WOLFGANG DR ,  GAUSEPOHL HERMANN DR

    IPC: C08F2/42 ,  C08F6/00 ,  C08F297/04 ,  C08J3/00 ,  C08L25/06 ,  C08L53/02 ,  C08L25/02 ,  C08J3/20 ,  C08F112/06 ,  C08F6/10 ,  C08F6/28

    Abstract: The invention pertains to a process for continuous preparation of impact-resistant modified vinyl aromatic compounds, in particular impact-resistant modified polystyrene, wherein the vinyl aromatic compound and the impact-resistant modifying agent, a rubber-elastic block copolymer, are produced separately by anionic polymerization in a reaction zone with or without heat exchange with the environment - if necessary with the addition of a solvent - polymerized until complete conversion and the active chain ends are terminated in a per se known way. The invention also pertains to a thermoplastic impact-resistant modified molding compound based on a vinyl aromatic compound with a residual content of less than 50 ppm monomers and less than 100 ppm oligomers.

    Styrene copolymers with high Tg and low residual monomer content
    65.
    发明专利
    Styrene copolymers with high Tg and low residual monomer content 未知

    公开(公告)号：DE4420917A1

    公开(公告)日：1995-12-21

    申请号：DE4420917

    申请日：1994-06-16

    Applicant: BASF AG

    Inventor： KNOLL KONRAD DR ,  GAUSEPOHL HERMANN DR

    IPC: C08F212/32 ,  C08F297/02 ,  C08L25/02 ,  D01F6/42

    Abstract: Thermoplastic moulding materials contain (A) 40-100 wt.% copolymers of monomers of formula (I) and (II) R1, R2 = H or 1-22C alkyl; R3 = H or 1-4C alkyl; a, b = 0,1 2,3,4, or 5; (B) 0-3000 ppm. of cpds. (I) (w.r.t. wt. of A); (C) 0-500 ppm. of cpds. (II) (w.r.t. wt. of A); (D) 0-60 wt.% polymers other than (A) and (E) 0-50 wt.% other additives etc.. Also claimed is a process for the prodn. of these materials by anionic polymerisation, by adding (II) to (I) by the gradient method so that the amt. of (II) added per unit time is gradually reduced in proportion to the amt. of unreacted monomer (I) with increasing reaction time. Also claimed are block copolymers of formula (A-B)n, A-B-A, B-A-B, X((A-B)n)m, X((B-A)n)m), X((A-B-A)n)m or X((B-A-B)n)m; A = a block of copolymer (I/II); B = a block based on monomer (II); X = residue of m-functional coupling agent; n = 1-5; m = 2-20. Also claimed are thermoplastic moulding materials contg. a block copolymer as above, with 0-3000 ppm. (I) and 0-500 ppm. (II).

    66.
    发明专利
    未知

    公开(公告)号：DE4319954A1

    公开(公告)日：1994-12-22

    申请号：DE4319954

    申请日：1993-06-16

    Applicant: BASF AG

    Inventor： BRONSTERT KLAUS DR ,  KNOLL KONRAD DR

    IPC: C08F8/30 ,  C08C19/30 ,  C08C19/44 ,  C08F4/48 ,  C08F36/00 ,  C08F36/02 ,  C08F36/04 ,  C08G18/69

    Abstract: PCT No. PCT/EP94/01802 Sec. 371 Date Nov. 17, 1995 Sec. 102(e) Date Nov. 17, 1995 PCT Filed Jun. 3, 1994 PCT Pub. No. WO94/29354 PCT Pub. Date Dec. 22, 1994A polydiene which is obtainable by anionic polymerization of a diene using a bifunctional Li initiator followed by polymer-like reaction and which contains at least one ethanolamine or oligoetherolamine terminal group of the general structure Il, Ar denotes aryl, R2 denotes alkyl or hydrogen, and R3 denotes aryl, alkyl, or hydrogen and X can assume a value from 1 to 10, and the hydrogenation products thereof.

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