2.
    发明专利
    未知

    公开(公告)号:ES2211047T3

    公开(公告)日:2004-07-01

    申请号:ES99907420

    申请日:1999-01-26

    Applicant: BASF AG

    Abstract: A process prepares impact-modified thermoplastic molding compositions which comprise a soft phase made from a rubber dispersed in a hard matrix composed of vinylaromatic monomers, where the hard matrix is prepared by anionic polymerization in the presence of a metal alkyl compound or a metal aryl compound of an element of the second or third main group, or of the second subgroup, of the Periodic Table.

    3.
    发明专利
    未知

    公开(公告)号:ES2127576T3

    公开(公告)日:1999-04-16

    申请号:ES95940174

    申请日:1995-11-14

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/04476 Sec. 371 Date May 12, 1997 Sec. 102(e) Date May 12, 1997 PCT Filed Nov. 14, 1995 PCT Pub. No. WO96/15164 PCT Pub. Date May 23, 1996In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) (I) where R1 is hydrogen or methyl and R2 is alkyl of 1 to 32 carbon atoms, if required a first monomer (b) having two or more double bonds and, if required, also a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B), in a second stage, a third monomer (d) or a plurality thereof is added to the resulting rubber (B) to form a second mixture (C), whereby the rubber (B) is dissolved or swollen in the third monomer (d), with or with the addition of a solvent, and in a third stage, the second mixture (C) formed is polymerized with free radicals to give the rubber-modified molding material (D), and the mixture is reacted at >120 DEG C., during or after this polymerization, with a compound (e) which contains at least two peroxy groups.

    5.
    发明专利
    未知

    公开(公告)号:BR9907648A

    公开(公告)日:2002-04-30

    申请号:BR9907648

    申请日:1999-01-26

    Applicant: BASF AG

    Abstract: A process prepares impact-modified thermoplastic molding compositions which comprise a soft phase made from a rubber dispersed in a hard matrix composed of vinylaromatic monomers, where the hard matrix is prepared by anionic polymerization in the presence of a metal alkyl compound or a metal aryl compound of an element of the second or third main group, or of the second subgroup, of the Periodic Table.

    8.
    发明专利
    未知

    公开(公告)号:ES2124596T3

    公开(公告)日:1999-02-01

    申请号:ES95937073

    申请日:1995-11-14

    Applicant: BASF AG

    Abstract: In a process for producing modified rubber moulding materials, a first mixture (A) that contains at least one alkyl acrylate or methacrylate (a) having the general formula (I), in which R stands for a hydrogen atom or a methyl group and R stands for an alkyl group with 1 to 32 carbon atoms, a first monomer (b) with two or more double bonds and optionally a second or several other monomers (c), is in a first step polymerised into a rubber (B), preferably together with free radicals. In a second step, the thus obtained rubber (B) is dissolved into or swollen with a third or several other monomers (d), optionally with admixture of a solvent, and in a third step, the second mixture (C) obtained by dissolving or swelling is polymerised into the modified rubber moulding material (D).

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