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    43.
    发明专利
    未知

    公开(公告)号：NO974336D0

    公开(公告)日：1997-09-19

    申请号：NO974336

    申请日：1997-09-19

    Applicant: BASF AG

    Inventor： KOCH ANDREAS ,  AUMUELLER ALEXANDER ,  MITULLA KONRAD ,  TREMMEL GREGOR ,  HERBST HOLGER

    IPC: C07D211/58 ,  C07B63/04 ,  C07D211/94 ,  C07F9/59 ,  C09K15/22 ,  C09K15/30

    Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.

    THERMOPLASTIC MOLDING MATERIALS
    44.
    发明专利
    THERMOPLASTIC MOLDING MATERIALS 未知

    公开(公告)号：CA1255832A

    公开(公告)日：1989-06-13

    申请号：CA478834

    申请日：1985-04-11

    Applicant: BASF AG

    Inventor： MITULLA KONRAD ,  HAMBRECHT JUERGEN ,  ECHTE ADOLF ,  SWOBODA JOHANN ,  SIEBEL PETER ,  SCHWAAB JOSEF ,  FRANK HERBERT

    IPC: C08L51/00 ,  C08L69/00

    Abstract: - 20- O.Z. 0050/37071 A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) b1), which accounts for from 10 to 80% by weight, and a grafted shell b2), which accounts for from 90 to 20% by weight, the percentages in each case being based on B). The elastomer b1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer. The grafted shell b2) is produced in three stages and contains, as graft monomers, b2a1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage, b2a2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and b2a3) from 10 to 85% by weight of an alkyl (meth) acrylate in the third stage, the percentages in each case being based on b2).

    45.
    发明专利
    未知

    公开(公告)号：DE50302634D1

    公开(公告)日：2006-05-04

    申请号：DE50302634

    申请日：2003-07-25

    Applicant: BASF AG

    Inventor： KNOLL KONRAD ,  DARDIN ULRIKE ,  DESBOIS PHILIPPE ,  MITULLA KONRAD ,  NAEGELE PAUL

    IPC: C08K5/00 ,  C08L53/02 ,  C08K5/13 ,  C08K5/134 ,  C08K5/1535 ,  C08K5/524

    Abstract: The invention relates to thermoplastic moulded masses containing, a) at least one block copolymer (A), comprising, with relation to (A), a1) 50 to 90 wt. % of at least one styrol monomer, a2) 10 to 50 wt. % of at least one diene monomer, with the following as stabilisers, relative to the moulded mass, b) 0.001 to 0.18 wt. % of at least one benzofuranone derivative (B), c) 0.05 to 1 wt. % of at least one organic phosphite (C), and d) 0.1 to 0.3 wt. % of at least one stabiliser compound (D), selected from sterically hindered phenols and aromatic amines.

    استخلاص مستمر CONTINUOUS RECOVERY للاستيرين STYRENE من خليط يحتوى عليه
    46.
    发明专利
    استخلاص مستمر CONTINUOUS RECOVERY للاستيرين STYRENE من خليط يحتوى عليه 未知

    公开(公告)号：SA731B1

    公开(公告)日：2006-04-26

    申请号：SA00201004

    申请日：2000-02-23

    Applicant: BASF AG

    Inventor： MITULLA KONRAD ,  SUTORIS HENZ FRIEDRICH

    IPC: B01D3/32 ,  C07B63/04 ,  C07C7/05 ,  C07C7/20 ,  C07C15/46

    Abstract: الملخص: يستخلص styrene بإستمرارمنخليطيحتويعليهبتقطير distillation الخليطفيمجموعةأجهزةمتصلةمتعاقبةمنأعمدةتقطير n،حيث:تيارتغذية feed stream يحتويعلىنظاممثبت stabilizer system يغذيالعمودالأولو/أونظاممثبتيدخلفيتيارعكسيلعمودتقطيرواحدعلىالأقلمنعمودتقطير n،حيثيحتويالنظامالمثبتعلىجذور N-oxyl redicals؛جزءالغلايةالعالي high boiler fraction الذيلهدرجةغليانأعلىمن styrene ويحتويعلىالنظامالمثبت stabilizer system يتراكمفيقاعدةمنأعمدةالتقطير n؛يعاددورانتيارفرعيمنجزءالغلايةالعاليويقدمفيتيارعكسيلعمودتقطيرواحدعلىالأقلمنعمودالتقطير n؛يفرغباقيجزءالغلايةالعاليمنالعملية.

    Method for the continuous recovery of styrene from a mixture containing same
    50.
    发明专利
    Method for the continuous recovery of styrene from a mixture containing same 未知

    公开(公告)号：AU3806900A

    公开(公告)日：2000-09-14

    申请号：AU3806900

    申请日：2000-02-25

    Applicant: BASF AG

    Inventor： MITULLA KONRAD ,  SUTORIS HEINZ FRIEDRICH

    IPC: B01D3/32 ,  C07B63/04 ,  C07C7/05 ,  C07C7/20 ,  C07C15/46

    Abstract: The invention relates to a method for the continuous recovery of styrene from a mixture containing same, by distillation of the mixture in a cascade of n distillation columns. According to said method, (i) an inflow containing a stabilizer system is fed into the first column and/or is placed into at least one of the distillation columns positioned upstream of the nth distillation column, whereby said stabilizer system comprises N-oxyl radicals; (ii) in the bottom of the nth distillation column a high-boiling fraction containing the stabilizer system and boiling at a higher temperature than styrene is concentrated; (iii) a partial flow of the high-boiling fraction is recycled and placed into at least one distillation column positioned upstream of the nth distillation column; and (iv) the remainder of the high-boiling fraction is withdrawn from the process.

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