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    31.
    发明专利
    未知

    公开(公告)号：ES2093338T3

    公开(公告)日：1996-12-16

    申请号：ES93112776

    申请日：1993-08-10

    Applicant: BASF AG

    Inventor： BENDER DIETMAR DR ,  BRONSTER KLAUS DR ,  MACH HELMUT DR ,  FISCHER MARTIN DR

    IPC: C08F8/12 ,  C08C19/02 ,  C08C19/26 ,  C08C19/40 ,  C08C19/42 ,  C08F8/00 ,  C08F8/30 ,  C08F8/42 ,  C08F236/10 ,  C08C19/44

    Abstract: Polymers Ia and Ib carrying functional groups, obtainable by A) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprising a) from 20 to 100% by weight of a conjugated diene, b) from 0 to 80% by weight of a vinylaromatic compound and c) from 0 to 20% by weight of further comonomers, to give the hydrogenated polymers IIb, 2. metallation of IIb using an organoalkali metal compound to give IIc, 3. reaction of IIc with a diaziridine III to give IId and 4. hydrolysis or alcoholysis of IId to give Ia, or by B) 1. partial hydrogenation of IIa to give partially hydrogenated polymers IIb', 2. epoxidation of the double bonds of IIb' to give IIe and 3. reaction of IIe with a compound IV carrying functional groups to give Ib. These polymers Ia and Ib are suitable as viscosity index improvers for engine oils.

    33.
    发明专利
    未知

    公开(公告)号：DE4420952A1

    公开(公告)日：1995-12-21

    申请号：DE4420952

    申请日：1994-06-17

    Applicant: BASF AG

    Inventor： KNOLL KONRAD DR ,  GAUSEPOHL HERMANN DR ,  NIESNER NORBERT DR ,  BENDER DIETMAR DR ,  NAEGELE PAUL

    IPC: C08F297/04 ,  C08J5/18 ,  C08L53/02

    Abstract: PCT No. PCT/EP95/02207 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Jun. 8, 1995 PCT Pub. No. WO95/35335 PCT Pub. Date Dec. 28, 1995An elastomeric block copolymer comprising at least one block A having polymerized units of a vinylaromatic monomer and forming a rigid phase and at least one elastomeric block B/A having polymerized units of both vinylaromatic monomers and of a diene and forming a flexible phase, and glass transition temperature Tg of the block A being above 25 DEG C. and that of the block B/A being below 25 DEG C. and the phase volume ratio of block A to block B/A being chosen so that the amount of the rigid phase in the total block copolymer is 1 to 40% by volume and the amount of the diene is less than 50% by weight.

    34.
    发明专利
    未知

    公开(公告)号：DE59106072D1

    公开(公告)日：1995-08-31

    申请号：DE59106072

    申请日：1991-05-16

    Applicant: BASF AG

    Inventor： KNOLL KONRAD DR ,  BRONSTERT KLAUS DR ,  BENDER DIETMAR DR

    IPC: C08F8/20 ,  C08F10/10

    Abstract: A process for the preparation of polymers of isobutene having tertiary chloride groups by reaction of appropriate polymers which have been prepared by cationic polymerization of isobutene with hydrogen chloride.

    35.
    发明专利
    未知

    公开(公告)号：DE59001102D1

    公开(公告)日：1993-05-06

    申请号：DE59001102

    申请日：1990-06-06

    Applicant: BASF AG

    Inventor： BENDER DIETMAR DR ,  BRONSTERT KLAUS DR ,  FISCHER MARTIN DR ,  SCHUERMANN GREGOR DR

    IPC: C07C29/56 ,  C07C29/86 ,  C07C33/035

    Abstract: A process for the isolation of trans-1,1,4,4-tetraalkyl-2-butene- 1,4-diols of the formula I … … in which the radicals R , R , R and R are identical or different and are C1- to C5-alkyl groups,… from mixtures with their cis isomer, wherein the trans isomer is separated from the cis isomer by liquid-liquid extraction.

    36.
    发明专利
    未知

    公开(公告)号：DE4123672A1

    公开(公告)日：1993-01-21

    申请号：DE4123672

    申请日：1991-07-17

    Applicant: BASF AG

    Inventor： BLUMENSTEIN UWE DR ,  BENDER DIETMAR DR ,  JENNE HELMUT DR

    IPC: B32B27/08 ,  B32B27/28 ,  B32B25/08 ,  B32B27/30 ,  B32B27/34 ,  B32B27/36 ,  B65D17/40 ,  C09J125/04 ,  C09J153/02

    Abstract: Multi-layer, sealable plastics film consisting essentially of A: a top layer A of a heat-resistant polymer having a melting point above 200 DEG C, B: an adhesion promoter B consisting of, based on B, 30 to 95 % by weight of a styrene butadiene block copolymer, up to 95 % by weight of polystyrene and/or high impact polystyrene and 5 to 70 % by weight of a polymer which is incompatible with polystyrene and contains polar groups, C: a backing layer C of 5 to 100 % by weight of a styrene butadiene block copolymer and up to 95 % by weight of polystyrene and/or high impact polystyrene, D: if required a barrier layer D, which can correspond to the cover layer A, E: a sealing layer E with a composition corresponding substantially to that of the adhesion promoter B.

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