THERMOPLASTIC MOLDING MATERIAL
    61.
    发明专利

    公开(公告)号:CA2221460C

    公开(公告)日:2006-07-11

    申请号:CA2221460

    申请日:1997-04-03

    Applicant: BASF AG

    Abstract: Rubber-elastic block copolymers of at least one hard block A consisting of styrene monomers and at least one elastomeric block (B/A) of styrene monomers and containing dienes, the glass temperature T g o f block A being over 25 .degree.C and that of block B/A is under 25 .degree.C and the phase volume ratio between block A and block B/A being such that the proportion of the hard phase in the entire block copolymer is 1 to 40 vol %, and the proportion by weight of the diene is und er 50 wt.%. The relative proportion of 1,2 bonds of the polydiene in relation to the sum of 1,2 and 1,4 cis/trans-bonds is under 15 %, process for their production by anionic polymerisation by means of lithium alkyl in a non-polar solvent in the presence of a soluble potassium salt and their use for the production of mouldings.

    62.
    发明专利
    未知

    公开(公告)号:DE102004059783A1

    公开(公告)日:2006-06-14

    申请号:DE102004059783

    申请日:2004-12-10

    Applicant: BASF AG

    Abstract: Mixture (A) comprises linear block copolymers of vinyl aromatic monomers and diene structural units, and the ratio of (I)/(II) amounts to 0.5-10. Mixture (A) comprises linear block copolymers of vinyl aromatic monomers and diene structural units of formula (S 1-B 1-S 2 (I) and B 2-S 3 (II)) and the ratio of (I)/(II) amounts to 0.5-10. S 1blocks of vinyl aromatic monomers with an average molecular mass of 40000-100000 g/mol; S 2, S 3blocks of vinyl aromatic monomers with an average molecular mass of 5000-20000 g/mol; and B 1, B 2one or more blocks of diene or copolymer blocks of diene and vinyl aromatic monomers with an average molecular mass of 15000-100000. Independent claims are also included for: (1) a mixture obtained by partial or complete hydrogenation of the linear block copolymers of vinyl aromatic monomers and diene structural units; and (2) the preparation of (A).

    68.
    发明专利
    未知

    公开(公告)号:DE59711544D1

    公开(公告)日:2004-05-27

    申请号:DE59711544

    申请日:1997-05-26

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/02682 Sec. 371 Date Jan. 13, 1998 Sec. 102(e) Date Jan. 13, 1998 PCT Filed May 26, 1997 PCT Pub. No. WO97/46608 PCT Pub. Date Dec. 11, 1997A film in roll form, in particular for food packaging as substitute for a film made from polyvinyl chloride, comprises from 15 to 99.6% by weight of an elastomeric styrene-butadiene block copolymer, from 15 to 99.6% of a thermoplastic polymer, from 0.1 to 10% of an antifogging agent, from 0.1 to 5% of a primary antioxidant, from 0.1 to 5% of a secondary antioxidant and from 0.1 to 50% of other auxiliaries, and shrinks perpendicularly to the direction of take-off by not more than 3% during a storage period of three months.

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