4-ACYLAMINOPIPERIDINE-N-OXYLS
    51.
    发明专利

    公开(公告)号:CZ274397A3

    公开(公告)日:1998-01-14

    申请号:CZ274397

    申请日:1996-03-15

    Applicant: BASF AG

    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 moulding composition based on polysulphone resins, polycarbonates, styrene- and acrylonitrile-containing copolymers and a graft copolymer

    公开(公告)号:DE3601418A1

    公开(公告)日:1987-07-23

    申请号:DE3601418

    申请日:1986-01-20

    Applicant: BASF AG

    Abstract: The invention relates to a thermoplastic moulding composition containing A from 20 to 80% by weight of a thermoplastic polysulphone resin (polyarylene-polyether-polysulphone), B from 10 to 60% by weight of a polycarbonate, C from 5 to 50% by weight of at least one copolymer based on c1) at least one vinylaromatic monomer from the group consisting of styrene, alpha -methylstyrene and p-methylstyrene, or mixtures thereof, and c2) acrylonitrile, and D from 5 to 50% by weight of at least one graft copolymer comprising, in each case based on C, d1) from 50 to 90% by weight of at least one elastomer (rubber) and d2) from 10 to 50% by weight of at least one shell grafted onto the elastomer, is characterised in that the copolymer C used contains, based on C, from 88 to 73% by weight of the vinylaromatic monomer c1) and from 12 to 27% by weight of acrylonitrile c2) in copolymerised form, and the viscosity indices are in the range from 50 to 100, and that furthermore, a graft copolymer D having a mean particle size in the range from 80 to 500 nm is used whose elastomer d1) contains, in copolymerised form, d11 at least 80% by weight of butadiene and d12 from 0 to 20% by weight of styrene and/or acrylonitrile, and whose shell c2 contains, based thereon, d21 from 90 to 10% by weight of styrene and d22 from 10 to 90% by weight of methyl methacrylate. The moulding composition is used for the production of mouldings.

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