41.
    发明专利
    未知

    公开(公告)号:ES2083412T3

    公开(公告)日:1996-04-16

    申请号:ES90120264

    申请日:1990-10-23

    Applicant: BASF AG

    Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C3- to C6-hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.

    42.
    发明专利
    未知

    公开(公告)号:DE59010161D1

    公开(公告)日:1996-04-04

    申请号:DE59010161

    申请日:1990-10-23

    Applicant: BASF AG

    Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C3- to C6-hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.

    45.
    发明专利
    未知

    公开(公告)号:DE4416852A1

    公开(公告)日:1995-11-16

    申请号:DE4416852

    申请日:1994-05-13

    Applicant: BASF AG

    Abstract: Expandable styrene polymers (I) for elastic polystyrene foam contain (a) 50-75 wt.% polystyrene and/or a copolymer with at least 50 wt.% polystyrene, (b) 5-30 wt.% styrene-soluble elastomer(s), (c) 5-20 wt.% block copolymer(s) with a styrene component, (d) 15-50 wt.% polyolefin(s), (e) 1-15 wt.%, w.r.t. (a)+(b), of a low-boiling blowing agent and opt. (f) usual additives in effective amts. Also claimed are a method for producing (I); elastic foam with a density of 5-70 g/l prepd. from (I); and a method of producing mouldings from (I). Pref. (b) has a Tg below 20 degrees C and esp. is polybutadiene. (c) contains at least 20 wt.% styrene and is a styrene-butadiene (SB) block copolymer, esp. a SB diblock copolymer and/or SBS triblock copolymer. (d) is polyethylene, opt. mixed with polypropylene.

    50.
    发明专利
    未知

    公开(公告)号:DE3936596A1

    公开(公告)日:1991-05-08

    申请号:DE3936596

    申请日:1989-11-03

    Applicant: BASF AG

    Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C3- to C6-hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.

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