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    11.
    发明专利
    未知

    公开(公告)号：AT139791T

    公开(公告)日：1996-07-15

    申请号：AT92118664

    申请日：1992-10-31

    Applicant: BASF AG

    Inventor： HAHN KLAUS DR ,  KAEMPFER KNUT DR ,  HINTZ HANS DR ,  SCHAEFER ANTHONY DR ,  RIETHUES MICHAEL DR ,  WITT MICHAEL DR

    IPC: C08J9/12 ,  C08J9/00 ,  C08J9/16 ,  C08J9/18 ,  C08K5/00 ,  C08K5/05 ,  C08K5/06 ,  C08K5/17 ,  C08L25/04 ,  C08L71/00 ,  C08L71/02

    Abstract: The invention relates to expandable styrene polymers containing a) a styrene polymer, b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), and c) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight, where the blowing agent or blowing agent mixture comprises c1) from 10 to 100% by weight of carbon dioxide and c2) from 0 to 90% by weight of at least one further blowing agent. The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    16.
    发明专利
    未知

    公开(公告)号：DE4137405A1

    公开(公告)日：1993-05-19

    申请号：DE4137405

    申请日：1991-11-14

    Applicant: BASF AG

    Inventor： HAHN KLAUS DR ,  KAEMPFER KNUT DR ,  HINTZ HANS DR ,  SCHAEFER ANTHONY DR ,  RIETHUES MICHAEL DR ,  WITT MICHAEL DR

    IPC: C08J9/12 ,  C08J9/00 ,  C08J9/16 ,  C08J9/18 ,  C08K5/00 ,  C08K5/05 ,  C08K5/06 ,  C08K5/17 ,  C08L25/04 ,  C08L71/00 ,  C08L71/02

    Abstract: The invention relates to expandable styrene polymers containing a) a styrene polymer, b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), and c) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight, where the blowing agent or blowing agent mixture comprises c1) from 10 to 100% by weight of carbon dioxide and c2) from 0 to 90% by weight of at least one further blowing agent. The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.

    17.
    发明专利
    未知

    公开(公告)号：DE3928284A1

    公开(公告)日：1991-02-28

    申请号：DE3928284

    申请日：1989-08-26

    Applicant: BASF AG

    Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  WITTENBERG DIETMAR DR ,  GLEICH PETER DR

    IPC: C09K21/14 ,  C08F2/18 ,  C08F2/44 ,  C08K5/02 ,  C08K9/08 ,  C08L25/00 ,  C08L25/04

    Abstract: Flame-resistant, expandable styrene polymers containing a styrene (co)polymer, from 0.4 to 6% by weight of hexabromocyclododecane having a mean particle size of from 1 to 50 mu m, the particles being provided with a firm coating which has a thickness of from 1/100 to 1/10 of the particle diameter and is insoluble in water and styrene, from 1 to 10% by weight of a C3- to C6-hydrocarbon as blowing agent, and, if desired, customary additives, are distinguished by a reduced internal water content and can be processed to form foams which have an improved foam structure and high UV stability.

    19.
    发明专利
    未知

    公开(公告)号：ES2100154T3

    公开(公告)日：1997-06-16

    申请号：ES90117727

    申请日：1990-09-14

    Applicant: BASF AG

    Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  WITTENBERG DIETMAR DR

    IPC: C08J9/14 ,  C08F2/18 ,  C08F2/38 ,  C08F2/44 ,  C08J9/00 ,  C08J9/16 ,  C08J9/20 ,  C08J9/232

    Abstract: Expandable styrene polymers containing a) 80 to 99% by weight of polystyrene, b) 1 to 20% by weight of a styrene-soluble polymer having a softening temperature above 140 DEG C, c) 3 to 10% by weight, based on the sum of a) and b), of a C3- to C6-hydrocarbon as a blowing agent, and optionally d) conventional additives, in which the mixture of components a) and b) has a melt flow index MFI 200/5 of between 15 and 30, are distinguished by high heat distortion resistance and good expandability.

    20.
    发明专利
    未知

    公开(公告)号：ES2058688T3

    公开(公告)日：1994-11-01

    申请号：ES90111719

    申请日：1990-06-21

    Applicant: BASF AG

    Inventor： HINTZ HANS DR ,  GUHR UWE DR ,  HAHN KLAUS DR ,  KEPPLER HANS GEORG DR

    IPC: C08F2/20 ,  C08F2/44 ,  C08F12/00 ,  C08F12/08 ,  C08J9/20

    Abstract: Bead-form expandable styrene polymers are obtained by suspension polymerization of styrene with addition of from 1 to 10% by weight of C3- to C6-hydrocarbons as blowing agents and, if desired, customary additives, where (a) the polymerization is initiated by rapidly heating the polymerization batch to form 80 DEG to 90 DEG C. within a maximum of 2 hours, (b) subsequently allowing the reaction temperature to increase to from 120 DEG C. to 130 DEG C. by from 8 DEG to 17 DEG C. per hour, and (c) the conversion is formed 30 to 60% when 100 DEG C. is reached, and (d) the conversion is 80% or more when the maximum temperature is reached, and (e) the batch is subsequently kept at from 100 DEG to 130 DEG C. until the residual monomer content in the polymer has dropped to less than 0.1%.

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