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    METHOD FOR BONDING FOAM CORE AND COVER
    4.
    发明专利
    METHOD FOR BONDING FOAM CORE AND COVER 失效

    公开(公告)号：JPH1199563A

    公开(公告)日：1999-04-13

    申请号：JP21138898

    申请日：1998-07-27

    Applicant: BASF AG

    Inventor： HAARDT UDO ,  TATZEL HERMANN

    IPC: B29C44/12 ,  B29C65/58 ,  B60R19/03 ,  B60R19/18 ,  B60R19/22 ,  F16B37/12

    Abstract: PROBLEM TO BE SOLVED: To strongly engage a cover with a foam core by allowing a screw to pierce the cover to screw the same in a sleeve in a combination of screw/ sleeve to bond the foam core and the cover. SOLUTION: The bonding of a foam core and a cover is brought about by a combination of screw 5/sleeve 3. The sleeve 3 is bonded to the through-hole preliminarily bored in the foam core 1 by a proper adhesive. However, in the case of particle foam, the sleeve 3 is pref. unified with the foam core by foaming and, in this unification, prefoamed beads are melted. A deep outer screw 4 or a hook pawl is provided to the outer periphery of this sleeve to bring the sleeve 3 into engagement with the interior of the foam core 1 during the melting and fixing of these prefoamed beads. When the foam core 1 is taken out of a mold, the sleeve 3 is strongly bonded to the interior of the core 1. In order to bond the cover 2 to the foam core 1, the through-hole pushing in the screw 5 to screw the same in the sleeve 3 is bored in the cover 2.

    COMPOSITE MOLDING OF SHOCK ABSORBING PROPYLENE POLYMER
    5.
    发明专利
    COMPOSITE MOLDING OF SHOCK ABSORBING PROPYLENE POLYMER 失效

    公开(公告)号：JPH05138784A

    公开(公告)日：1993-06-08

    申请号：JP34089691

    申请日：1991-12-24

    Applicant: BASF AG

    Inventor： HAARDT UDO ,  SEILER ERHARD ,  TATZEL HERMANN ,  SCHWAGER HARALD ,  DOMAS FRIEDRICH

    IPC: B29C44/00 ,  B29L31/58 ,  B32B5/18 ,  B32B5/20 ,  B32B27/32

    Abstract: PURPOSE: To make it possible to recycled use as well as obtain good durability, shock resistance, mechanical properties and surface property by constituting a composite molding using a propylene polymer as a main body and making a polymer adhere to both sides of a foamed core with a hot-melt adhesive layer. CONSTITUTION: This shock-absorbing propylene polymer composite molding comprises: (a) a layer with a thickness of 0.5 to 10 mm containing a propylene polymer having a melting point of 130 to 165 deg.C, (b) an intermediate layer with a thickness of 0.05 to 0.5 mm containing a hot-melt adhesive of olefin copolymer having a melting point of 90 to 140 deg.C as a main body, (c) a foamed layer with a thickness of 3 to 200 mm containing a propylene copolymer having a melting point of 125 to 155 deg.C as a main body and a density of 0.015 to 0.1 g/cm , (d) an intermediate layer with a thickness of 0.05 to 0.5 mm containing a hot-melt adhesive of olefin copolymer having a melting point of 90 to 140 deg.C as a main body, and (e) a layer with a thickness of 0.5 to 10 mm containing a propylene polymer having a melting point of 130 to 165 deg.C.

    7.
    发明专利
    未知

    公开(公告)号：ES2043216T5

    公开(公告)日：1998-03-01

    申请号：ES90120067

    申请日：1990-10-19

    Applicant: BASF AG

    Inventor： SEILER ERHARD DR ,  RUEMPLER KLAUS-DIETER DR ,  JUNG NORBERT ,  HAARDT UDO ,  HENNING RAINER DR ,  HAMBRECHT JUERGEN DR

    IPC: B60R19/03 ,  B60R19/18 ,  B60R19/22

    Abstract: The invention relates to a polypropylene-based bumper system comprising a bumper support A (1) comprising glass fibre-reinforced polypropylene, an energy-absorbing foam core B (2) comprising foamed polypropylene, and a tough shell C (3) which comprises EP rubber-modified polypropylene and may, if desired, be painted. The bumper system can be recycled by mechanical comminution, extrusion and granulation. The granules can be used to produce injection mouldings having good mechanical properties.

    10.
    发明专利
    未知

    公开(公告)号：ES2043216T3

    公开(公告)日：1993-12-16

    申请号：ES90120067

    申请日：1990-10-19

    Applicant: BASF AG

    Inventor： SEILER ERHARD DR ,  RUEMPLER KLAUS-DIETER DR ,  JUNG NORBERT ,  HAARDT UDO ,  HENNING RAINER DR ,  HAMBRECHT JUERGEN DR

    IPC: B60R19/03 ,  B60R19/18 ,  B60R19/22

    Abstract: The invention relates to a polypropylene-based bumper system comprising a bumper support A (1) comprising glass fibre-reinforced polypropylene, an energy-absorbing foam core B (2) comprising foamed polypropylene, and a tough shell C (3) which comprises EP rubber-modified polypropylene and may, if desired, be painted. The bumper system can be recycled by mechanical comminution, extrusion and granulation. The granules can be used to produce injection mouldings having good mechanical properties.

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